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feat: implement pod-based scanning architecture

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This major refactor moves from synchronous subprocess-based scanning to
asynchronous pod-based scanning using Kubernetes Jobs.

## Architecture Changes
- Scanner jobs are now Kubernetes Jobs with TTLAfterFinished for automatic cleanup
- Jobs have owner references for garbage collection when NucleiScan is deleted
- Configurable concurrency limits, timeouts, and resource requirements

## New Features
- Dual-mode binary: --mode=controller (default) or --mode=scanner
- Annotation-based configuration for Ingress/VirtualService resources
- Operator-level configuration via environment variables
- Startup recovery for orphaned scans after operator restart
- Periodic cleanup of stuck jobs

## New Files
- DESIGN.md: Comprehensive architecture design document
- internal/jobmanager/: Job Manager for creating/monitoring scanner jobs
- internal/scanner/runner.go: Scanner mode implementation
- internal/annotations/: Annotation parsing utilities
- charts/nuclei-operator/templates/scanner-rbac.yaml: Scanner RBAC

## API Changes
- Added ScannerConfig struct for per-scan scanner configuration
- Added JobReference struct for tracking scanner jobs
- Added ScannerConfig field to NucleiScanSpec
- Added JobRef and ScanStartTime fields to NucleiScanStatus

## Supported Annotations
- nuclei.homelab.mortenolsen.pro/enabled
- nuclei.homelab.mortenolsen.pro/templates
- nuclei.homelab.mortenolsen.pro/severity
- nuclei.homelab.mortenolsen.pro/schedule
- nuclei.homelab.mortenolsen.pro/timeout
- nuclei.homelab.mortenolsen.pro/scanner-image

## RBAC Updates
- Added Job and Pod permissions for operator
- Created separate scanner service account with minimal permissions

## Documentation
- Updated README, user-guide, api.md, and Helm chart README
- Added example annotated Ingress resources
This commit is contained in:
Morten Olsen
2025-12-12 20:51:23 +01:00
parent 519ed32de3
commit 12d681ada1
22 changed files with 3060 additions and 245 deletions
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587
DESIGN.md Normal file
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@@ -0,0 +1,587 @@
# Pod-Based Scanning Architecture Design
## Executive Summary
This document describes the new architecture for the nuclei-operator that moves from synchronous subprocess-based scanning to asynchronous pod-based scanning. This change improves scalability, reliability, and operational flexibility while maintaining backward compatibility.
## 1. Architecture Overview
### 1.1 Current State Problems
The current implementation has several limitations:
1. **Blocking Reconcile Loop**: Scans execute synchronously within the operator pod, blocking the reconcile loop for up to 30 minutes
2. **Single Point of Failure**: All scans run in the operator pod - if it restarts, running scans are lost
3. **Resource Contention**: Multiple concurrent scans compete for operator pod resources
4. **No Horizontal Scaling**: Cannot distribute scan workload across multiple pods
5. **Limited Configuration**: No annotation-based configuration for individual Ingress/VirtualService resources
### 1.2 New Architecture
```
┌─────────────────────────────────────────────────────────────────────────────┐
│ KUBERNETES CLUSTER │
├─────────────────────────────────────────────────────────────────────────────┤
│ │
│ ┌──────────────┐ ┌──────────────────┐ ┌─────────────────────────┐ │
│ │ Ingress │───▶│ IngressReconciler │───▶│ │ │
│ └──────────────┘ └──────────────────┘ │ │ │
│ │ │ NucleiScan CRD │ │
│ ┌──────────────┐ ┌──────────────────┐ │ │ │
│ │VirtualService│───▶│ VSReconciler │───▶│ spec: │ │
│ └──────────────┘ └──────────────────┘ │ sourceRef │ │
│ │ │ targets[] │ │
│ │ │ templates[] │ │
│ ▼ │ severity[] │ │
│ ┌──────────────────┐ │ schedule │ │
│ │ Owner Reference │ │ status: │ │
│ │ (GC on delete) │ │ phase │ │
│ └──────────────────┘ │ findings[] │ │
│ │ summary │ │
│ │ jobRef │ │
│ └───────────┬─────────────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────────────┐ │
│ │ NucleiScanReconciler │ │
│ │ │ │
│ │ 1. Check phase │ │
│ │ 2. Create/monitor Job │ │
│ │ 3. Handle completion │ │
│ └───────────┬─────────────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────────────┐ │
│ │ Scanner Jobs │ │
│ │ (Kubernetes Jobs) │ │
│ │ │ │
│ │ - Isolated execution │ │
│ │ - Direct status update│ │
│ │ - Auto cleanup (TTL) │ │
│ └─────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────────────────┘
```
### 1.3 Key Design Decisions
#### Decision 1: Kubernetes Jobs vs Bare Pods
**Choice: Kubernetes Jobs with TTLAfterFinished**
Rationale:
- Jobs provide built-in completion tracking and retry mechanisms
- TTLAfterFinished enables automatic cleanup of completed jobs
- Jobs maintain history for debugging and auditing
- Better integration with Kubernetes ecosystem tools
```yaml
apiVersion: batch/v1
kind: Job
metadata:
name: nucleiscan-myapp-abc123
namespace: default
spec:
ttlSecondsAfterFinished: 3600 # Clean up 1 hour after completion
backoffLimit: 2 # Retry failed scans twice
activeDeadlineSeconds: 1800 # 30 minute timeout
template:
spec:
restartPolicy: Never
containers:
- name: scanner
image: ghcr.io/morten-olsen/homelab-nuclei-operator:latest
args: ["--mode=scanner", "--scan-id=myapp-abc123"]
```
#### Decision 2: Result Communication
**Choice: Dual-mode operator image with direct API access**
Rationale:
- Single image simplifies deployment and versioning
- Scanner mode has direct Kubernetes API access to update NucleiScan status
- No intermediate storage needed (ConfigMaps or logs)
- Results are immediately available in the CRD status
- Consistent error handling and status updates
The operator binary supports two modes:
1. **Controller Mode** (default): Runs the operator controllers
2. **Scanner Mode** (`--mode=scanner`): Executes a single scan and updates the NucleiScan status
#### Decision 3: Template Distribution
**Choice: Hybrid approach with configurable options**
1. **Default**: Use projectdiscovery/nuclei built-in templates (updated with each nuclei release)
2. **Custom Templates**: Mount via ConfigMap for small template sets
3. **Git Sync**: Init container that clones template repositories at runtime
4. **Custom Image**: For air-gapped environments, bake templates into a custom scanner image
Configuration hierarchy:
```
Operator Defaults < NucleiScan Spec < Ingress/VS Annotations
```
## 2. Component Design
### 2.1 NucleiScan Controller Changes
The controller transitions from executing scans to managing scan jobs:
```go
// Simplified reconciliation flow
func (r *NucleiScanReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
nucleiScan := &nucleiv1alpha1.NucleiScan{}
if err := r.Get(ctx, req.NamespacedName, nucleiScan); err != nil {
return ctrl.Result{}, client.IgnoreNotFound(err)
}
switch nucleiScan.Status.Phase {
case ScanPhasePending:
return r.handlePending(ctx, nucleiScan) // Create Job
case ScanPhaseRunning:
return r.handleRunning(ctx, nucleiScan) // Monitor Job
case ScanPhaseCompleted, ScanPhaseFailed:
return r.handleCompleted(ctx, nucleiScan) // Schedule next or cleanup
}
}
```
### 2.2 Job Manager Component
New component responsible for:
- Creating scanner jobs with proper configuration
- Monitoring job status and updating NucleiScan accordingly
- Cleaning up orphaned jobs on operator restart
- Enforcing concurrency limits
```go
type JobManager struct {
client.Client
Scheme *runtime.Scheme
ScannerImage string
MaxConcurrent int
DefaultTimeout time.Duration
}
func (m *JobManager) CreateScanJob(ctx context.Context, scan *nucleiv1alpha1.NucleiScan) (*batchv1.Job, error) {
job := m.buildJob(scan)
if err := controllerutil.SetControllerReference(scan, job, m.Scheme); err != nil {
return nil, err
}
return job, m.Create(ctx, job)
}
```
### 2.3 Scanner Mode Implementation
The operator binary in scanner mode:
```go
func runScannerMode(scanID string) error {
// 1. Initialize Kubernetes client
config, _ := rest.InClusterConfig()
client, _ := client.New(config, client.Options{})
// 2. Fetch the NucleiScan resource
scan := &nucleiv1alpha1.NucleiScan{}
client.Get(ctx, types.NamespacedName{...}, scan)
// 3. Execute the scan
result, err := scanner.Scan(ctx, scan.Spec.Targets, options)
// 4. Update NucleiScan status directly
scan.Status.Phase = ScanPhaseCompleted
scan.Status.Findings = result.Findings
scan.Status.Summary = result.Summary
client.Status().Update(ctx, scan)
return nil
}
```
## 3. API Changes
### 3.1 NucleiScan CRD Updates
New fields added to the spec and status:
```go
// NucleiScanSpec additions
type NucleiScanSpec struct {
// ... existing fields ...
// ScannerConfig allows overriding scanner settings for this scan
// +optional
ScannerConfig *ScannerConfig `json:"scannerConfig,omitempty"`
}
// ScannerConfig defines scanner-specific configuration
type ScannerConfig struct {
// Image overrides the default scanner image
// +optional
Image string `json:"image,omitempty"`
// Resources defines resource requirements for the scanner pod
// +optional
Resources *corev1.ResourceRequirements `json:"resources,omitempty"`
// Timeout overrides the default scan timeout
// +optional
Timeout *metav1.Duration `json:"timeout,omitempty"`
// TemplateURLs specifies additional template repositories to clone
// +optional
TemplateURLs []string `json:"templateURLs,omitempty"`
// NodeSelector for scanner pod scheduling
// +optional
NodeSelector map[string]string `json:"nodeSelector,omitempty"`
// Tolerations for scanner pod scheduling
// +optional
Tolerations []corev1.Toleration `json:"tolerations,omitempty"`
}
// NucleiScanStatus additions
type NucleiScanStatus struct {
// ... existing fields ...
// JobRef references the current or last scanner job
// +optional
JobRef *JobReference `json:"jobRef,omitempty"`
// ScanStartTime is when the scanner pod actually started scanning
// +optional
ScanStartTime *metav1.Time `json:"scanStartTime,omitempty"`
}
// JobReference contains information about the scanner job
type JobReference struct {
// Name of the Job
Name string `json:"name"`
// UID of the Job
UID string `json:"uid"`
// PodName is the name of the scanner pod (for log retrieval)
// +optional
PodName string `json:"podName,omitempty"`
// StartTime when the job was created
StartTime *metav1.Time `json:"startTime,omitempty"`
}
```
## 4. Annotation Schema
### 4.1 Supported Annotations
Annotations on Ingress/VirtualService resources to configure scanning:
| Annotation | Type | Default | Description |
|------------|------|---------|-------------|
| `nuclei.homelab.mortenolsen.pro/enabled` | bool | `true` | Enable/disable scanning for this resource |
| `nuclei.homelab.mortenolsen.pro/templates` | string | - | Comma-separated list of template paths or tags |
| `nuclei.homelab.mortenolsen.pro/severity` | string | - | Comma-separated severity filter: info,low,medium,high,critical |
| `nuclei.homelab.mortenolsen.pro/schedule` | string | - | Cron schedule for periodic scans |
| `nuclei.homelab.mortenolsen.pro/timeout` | duration | `30m` | Scan timeout |
| `nuclei.homelab.mortenolsen.pro/scanner-image` | string | - | Override scanner image |
| `nuclei.homelab.mortenolsen.pro/exclude-templates` | string | - | Templates to exclude |
| `nuclei.homelab.mortenolsen.pro/rate-limit` | int | `150` | Requests per second limit |
| `nuclei.homelab.mortenolsen.pro/tags` | string | - | Template tags to include |
| `nuclei.homelab.mortenolsen.pro/exclude-tags` | string | - | Template tags to exclude |
### 4.2 Example Annotated Ingress
```yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: myapp-ingress
namespace: production
annotations:
nuclei.homelab.mortenolsen.pro/enabled: "true"
nuclei.homelab.mortenolsen.pro/severity: "medium,high,critical"
nuclei.homelab.mortenolsen.pro/schedule: "0 2 * * *"
nuclei.homelab.mortenolsen.pro/templates: "cves/,vulnerabilities/,exposures/"
nuclei.homelab.mortenolsen.pro/exclude-tags: "dos,fuzz"
nuclei.homelab.mortenolsen.pro/timeout: "45m"
spec:
rules:
- host: myapp.example.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: myapp
port:
number: 80
```
## 5. State Machine
### 5.1 Updated Scan Lifecycle
```
┌─────────────────────────────────────┐
│ │
▼ │
┌─────────┐ ┌─────────┐ ┌───────────┐ ┌────────┴─┐
│ Created │───▶│ Pending │───▶│ Running │───▶│ Completed│
└─────────┘ └────┬────┘ └─────┬─────┘ └──────────┘
│ │ │
│ │ │ (schedule/rescanAge)
│ ▼ │
│ ┌─────────┐ │
│ │ Failed │◀──────────┘
│ └────┬────┘
│ │
└───────────────┘ (spec change triggers retry)
```
### 5.2 Phase Definitions
| Phase | Description | Job State | Actions |
|-------|-------------|-----------|---------|
| `Pending` | Waiting to start | None | Create scanner job |
| `Running` | Scan in progress | Active | Monitor job, check timeout |
| `Completed` | Scan finished successfully | Succeeded | Parse results, schedule next |
| `Failed` | Scan failed | Failed | Record error, retry logic |
## 6. Error Handling
### 6.1 Failure Scenarios
| Scenario | Detection | Recovery |
|----------|-----------|----------|
| Job creation fails | API error | Retry with backoff, update status |
| Pod fails to schedule | Job pending timeout | Alert, manual intervention |
| Scan timeout | activeDeadlineSeconds | Mark failed, retry |
| Scanner crashes | Job failed status | Retry based on backoffLimit |
| Operator restarts | Running phase with no job | Reset to Pending |
| Target unavailable | HTTP check fails | Exponential backoff retry |
| Results too large | Status update fails | Truncate findings, log warning |
### 6.2 Operator Restart Recovery
On startup, the operator must handle orphaned state:
```go
func (r *NucleiScanReconciler) RecoverOrphanedScans(ctx context.Context) error {
// List all NucleiScans in Running phase
scanList := &nucleiv1alpha1.NucleiScanList{}
if err := r.List(ctx, scanList); err != nil {
return err
}
for _, scan := range scanList.Items {
if scan.Status.Phase != ScanPhaseRunning {
continue
}
// Check if the referenced job still exists
if scan.Status.JobRef != nil {
job := &batchv1.Job{}
err := r.Get(ctx, types.NamespacedName{
Name: scan.Status.JobRef.Name,
Namespace: scan.Namespace,
}, job)
if apierrors.IsNotFound(err) {
// Job is gone - reset scan to Pending
scan.Status.Phase = ScanPhasePending
scan.Status.LastError = "Recovered from operator restart - job not found"
scan.Status.JobRef = nil
r.Status().Update(ctx, &scan)
}
// If job exists, normal reconciliation will handle it
}
}
return nil
}
```
### 6.3 Job Cleanup
Orphaned jobs are cleaned up via:
1. **Owner References**: Jobs have NucleiScan as owner - deleted when scan is deleted
2. **TTLAfterFinished**: Kubernetes automatically cleans up completed jobs
3. **Periodic Cleanup**: Background goroutine removes stuck jobs
## 7. Security Considerations
### 7.1 RBAC Updates
The operator needs additional permissions for Job management:
```yaml
# Additional rules for config/rbac/role.yaml
rules:
# Job management
- apiGroups: ["batch"]
resources: ["jobs"]
verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
# Pod logs for debugging
- apiGroups: [""]
resources: ["pods", "pods/log"]
verbs: ["get", "list", "watch"]
```
Scanner pods need minimal RBAC - only to update their specific NucleiScan:
```yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: nuclei-scanner-role
rules:
- apiGroups: ["nuclei.homelab.mortenolsen.pro"]
resources: ["nucleiscans"]
verbs: ["get"]
- apiGroups: ["nuclei.homelab.mortenolsen.pro"]
resources: ["nucleiscans/status"]
verbs: ["get", "update", "patch"]
```
### 7.2 Pod Security
Scanner pods run with restricted security context:
```yaml
securityContext:
runAsNonRoot: true
runAsUser: 65532
runAsGroup: 65532
fsGroup: 65532
allowPrivilegeEscalation: false
readOnlyRootFilesystem: false # Nuclei needs temp files
seccompProfile:
type: RuntimeDefault
capabilities:
drop:
- ALL
```
## 8. Migration Path
### 8.1 Version Strategy
| Version | Changes | Compatibility |
|---------|---------|---------------|
| v0.x | Current synchronous scanning | - |
| v1.0 | Pod-based scanning, new status fields | Backward compatible |
| v1.1 | Annotation support | Additive |
| v2.0 | Remove synchronous mode | Breaking |
### 8.2 Migration Steps
1. **Phase 1**: Add new fields to CRD (non-breaking, all optional)
2. **Phase 2**: Dual-mode operation with feature flag
3. **Phase 3**: Add annotation support
4. **Phase 4**: Deprecate synchronous mode
5. **Phase 5**: Remove synchronous mode (v2.0)
### 8.3 Rollback Plan
If issues are discovered:
1. **Immediate**: Set `scanner.mode: sync` in Helm values
2. **Short-term**: Pin to previous operator version
3. **Long-term**: Fix issues in pod-based mode
## 9. Configuration Reference
### 9.1 Helm Values
```yaml
# Scanner configuration
scanner:
# Scanning mode: "pod" or "sync" (legacy)
mode: "pod"
# Default scanner image
image: ghcr.io/morten-olsen/homelab-nuclei-operator:latest
# Default scan timeout
timeout: 30m
# Maximum concurrent scan jobs
maxConcurrent: 5
# Job TTL after completion (seconds)
ttlAfterFinished: 3600
# Default resource requirements for scanner pods
resources:
requests:
cpu: 100m
memory: 256Mi
limits:
cpu: "1"
memory: 1Gi
# Template configuration
templates:
# Built-in templates to use
defaults:
- cves/
- vulnerabilities/
# Git repositories to clone (init container)
repositories: []
# - url: https://github.com/projectdiscovery/nuclei-templates
# branch: main
# path: /templates/community
# Operator configuration
operator:
# Rescan age - trigger rescan if results older than this
rescanAge: 168h
# Backoff for target availability checks
backoff:
initial: 10s
max: 10m
multiplier: 2.0
```
### 9.2 Environment Variables
| Variable | Description | Default |
|----------|-------------|---------|
| `SCANNER_MODE` | pod or sync | pod |
| `SCANNER_IMAGE` | Default scanner image | operator image |
| `SCANNER_TIMEOUT` | Default scan timeout | 30m |
| `MAX_CONCURRENT_SCANS` | Max parallel jobs | 5 |
| `JOB_TTL_AFTER_FINISHED` | Job cleanup TTL | 3600 |
| `NUCLEI_TEMPLATES_PATH` | Template directory | /nuclei-templates |
## 10. Observability
### 10.1 Metrics
New Prometheus metrics:
- `nuclei_scan_jobs_created_total` - Total scanner jobs created
- `nuclei_scan_job_duration_seconds` - Duration histogram of scan jobs
- `nuclei_active_scan_jobs` - Currently running scan jobs
### 10.2 Events
Kubernetes events for key state transitions:
- `ScanJobCreated` - Scanner job created
- `ScanCompleted` - Scan finished successfully
- `ScanFailed` - Scan failed
### 10.3 Logging
Structured logging with consistent fields:
- `scan` - NucleiScan name
- `namespace` - Namespace
- `targets` - Number of targets
- `timeout` - Scan timeout

18
README.md
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@@ -11,6 +11,8 @@ The Nuclei Operator watches for Ingress and VirtualService resources in your Kub
### Key Features ### Key Features
- **Pod-based Scanning Architecture**: Each scan runs in an isolated Kubernetes Job for better scalability and reliability
- **Annotation-based Configuration**: Configure scanning behavior per-resource using annotations on Ingress/VirtualService
- **Automatic Discovery**: Watches Kubernetes Ingress and Istio VirtualService resources for new endpoints - **Automatic Discovery**: Watches Kubernetes Ingress and Istio VirtualService resources for new endpoints
- **Automated Scanning**: Automatically creates and runs Nuclei scans when new endpoints are discovered - **Automated Scanning**: Automatically creates and runs Nuclei scans when new endpoints are discovered
- **Scheduled Scans**: Support for cron-based scheduled rescanning - **Scheduled Scans**: Support for cron-based scheduled rescanning
@@ -31,15 +33,15 @@ The Nuclei Operator watches for Ingress and VirtualService resources in your Kub
│ │ │ │
▼ ▼ ▼ ▼
┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
│ Nuclei Engine │────▶│ Scan Results │ │ Scanner Job │────▶│ Scan Results │
│ (Scanner) │ │ (Findings) │ │ (Isolated Pod) │ │ (Findings) │
└─────────────────┘ └─────────────────┘ └─────────────────┘ └─────────────────┘
``` ```
1. **Watch**: The operator watches for Ingress and VirtualService resources 1. **Watch**: The operator watches for Ingress and VirtualService resources
2. **Extract**: URLs are extracted from the resource specifications 2. **Extract**: URLs are extracted from the resource specifications (annotations configure behavior)
3. **Create**: A NucleiScan custom resource is created with the target URLs 3. **Create**: A NucleiScan custom resource is created with the target URLs
4. **Scan**: The Nuclei scanner executes security scans against the targets 4. **Scan**: A Kubernetes Job is created to run the Nuclei scan in an isolated pod
5. **Store**: Results are stored in the NucleiScan status for easy access 5. **Store**: Results are stored in the NucleiScan status for easy access
## Prerequisites ## Prerequisites
@@ -199,6 +201,11 @@ kind: Ingress
metadata: metadata:
name: my-app-ingress name: my-app-ingress
namespace: default namespace: default
annotations:
# Optional: Configure scanning behavior via annotations
nuclei.homelab.mortenolsen.pro/enabled: "true"
nuclei.homelab.mortenolsen.pro/severity: "medium,high,critical"
nuclei.homelab.mortenolsen.pro/schedule: "0 2 * * *"
spec: spec:
tls: tls:
- hosts: - hosts:
@@ -484,8 +491,9 @@ make uninstall
## Documentation ## Documentation
- [Architecture](ARCHITECTURE.md) - Detailed architecture documentation - [Architecture](ARCHITECTURE.md) - Detailed architecture documentation
- [Design Document](DESIGN.md) - Pod-based scanning architecture design
- [API Reference](docs/api.md) - Complete CRD API reference - [API Reference](docs/api.md) - Complete CRD API reference
- [User Guide](docs/user-guide.md) - Detailed usage instructions - [User Guide](docs/user-guide.md) - Detailed usage instructions (includes annotation reference)
- [Contributing](CONTRIBUTING.md) - Contribution guidelines - [Contributing](CONTRIBUTING.md) - Contribution guidelines
## Contributing ## Contributing

57
api/v1alpha1/nucleiscan_types.go
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@@ -17,6 +17,7 @@ limitations under the License.
package v1alpha1 package v1alpha1
import ( import (
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime" "k8s.io/apimachinery/pkg/runtime"
) )
@@ -44,6 +45,50 @@ type SourceReference struct {
UID string `json:"uid"` UID string `json:"uid"`
} }
// ScannerConfig defines scanner-specific configuration
type ScannerConfig struct {
// Image overrides the default scanner image
// +optional
Image string `json:"image,omitempty"`
// Resources defines resource requirements for the scanner pod
// +optional
Resources *corev1.ResourceRequirements `json:"resources,omitempty"`
// Timeout overrides the default scan timeout
// +optional
Timeout *metav1.Duration `json:"timeout,omitempty"`
// TemplateURLs specifies additional template repositories to clone
// +optional
TemplateURLs []string `json:"templateURLs,omitempty"`
// NodeSelector for scanner pod scheduling
// +optional
NodeSelector map[string]string `json:"nodeSelector,omitempty"`
// Tolerations for scanner pod scheduling
// +optional
Tolerations []corev1.Toleration `json:"tolerations,omitempty"`
}
// JobReference contains information about the scanner job
type JobReference struct {
// Name of the Job
Name string `json:"name"`
// UID of the Job
UID string `json:"uid"`
// PodName is the name of the scanner pod (for log retrieval)
// +optional
PodName string `json:"podName,omitempty"`
// StartTime when the job was created
// +optional
StartTime *metav1.Time `json:"startTime,omitempty"`
}
// NucleiScanSpec defines the desired state of NucleiScan // NucleiScanSpec defines the desired state of NucleiScan
type NucleiScanSpec struct { type NucleiScanSpec struct {
// SourceRef references the Ingress or VirtualService being scanned // SourceRef references the Ingress or VirtualService being scanned
@@ -73,6 +118,10 @@ type NucleiScanSpec struct {
// Suspend prevents scheduled scans from running // Suspend prevents scheduled scans from running
// +optional // +optional
Suspend bool `json:"suspend,omitempty"` Suspend bool `json:"suspend,omitempty"`
// ScannerConfig allows overriding scanner settings for this scan
// +optional
ScannerConfig *ScannerConfig `json:"scannerConfig,omitempty"`
} }
// ScanPhase represents the current phase of the scan // ScanPhase represents the current phase of the scan
@@ -200,6 +249,14 @@ type NucleiScanStatus struct {
// LastRetryTime is when the last availability check retry occurred // LastRetryTime is when the last availability check retry occurred
// +optional // +optional
LastRetryTime *metav1.Time `json:"lastRetryTime,omitempty"` LastRetryTime *metav1.Time `json:"lastRetryTime,omitempty"`
// JobRef references the current or last scanner job
// +optional
JobRef *JobReference `json:"jobRef,omitempty"`
// ScanStartTime is when the scanner pod actually started scanning
// +optional
ScanStartTime *metav1.Time `json:"scanStartTime,omitempty"`
} }
// +kubebuilder:object:root=true // +kubebuilder:object:root=true

82
api/v1alpha1/zz_generated.deepcopy.go
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@@ -21,7 +21,8 @@ limitations under the License.
package v1alpha1 package v1alpha1
import ( import (
"k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime" "k8s.io/apimachinery/pkg/runtime"
) )
@@ -61,6 +62,25 @@ func (in *Finding) DeepCopy() *Finding {
return out return out
} }
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *JobReference) DeepCopyInto(out *JobReference) {
*out = *in
if in.StartTime != nil {
in, out := &in.StartTime, &out.StartTime
*out = (*in).DeepCopy()
}
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new JobReference.
func (in *JobReference) DeepCopy() *JobReference {
if in == nil {
return nil
}
out := new(JobReference)
in.DeepCopyInto(out)
return out
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *NucleiScan) DeepCopyInto(out *NucleiScan) { func (in *NucleiScan) DeepCopyInto(out *NucleiScan) {
*out = *in *out = *in
@@ -139,6 +159,11 @@ func (in *NucleiScanSpec) DeepCopyInto(out *NucleiScanSpec) {
*out = make([]string, len(*in)) *out = make([]string, len(*in))
copy(*out, *in) copy(*out, *in)
} }
if in.ScannerConfig != nil {
in, out := &in.ScannerConfig, &out.ScannerConfig
*out = new(ScannerConfig)
(*in).DeepCopyInto(*out)
}
} }
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NucleiScanSpec. // DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NucleiScanSpec.
@@ -156,7 +181,7 @@ func (in *NucleiScanStatus) DeepCopyInto(out *NucleiScanStatus) {
*out = *in *out = *in
if in.Conditions != nil { if in.Conditions != nil {
in, out := &in.Conditions, &out.Conditions in, out := &in.Conditions, &out.Conditions
*out = make([]v1.Condition, len(*in)) *out = make([]metav1.Condition, len(*in))
for i := range *in { for i := range *in {
(*in)[i].DeepCopyInto(&(*out)[i]) (*in)[i].DeepCopyInto(&(*out)[i])
} }
@@ -189,6 +214,15 @@ func (in *NucleiScanStatus) DeepCopyInto(out *NucleiScanStatus) {
in, out := &in.LastRetryTime, &out.LastRetryTime in, out := &in.LastRetryTime, &out.LastRetryTime
*out = (*in).DeepCopy() *out = (*in).DeepCopy()
} }
if in.JobRef != nil {
in, out := &in.JobRef, &out.JobRef
*out = new(JobReference)
(*in).DeepCopyInto(*out)
}
if in.ScanStartTime != nil {
in, out := &in.ScanStartTime, &out.ScanStartTime
*out = (*in).DeepCopy()
}
} }
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NucleiScanStatus. // DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NucleiScanStatus.
@@ -223,6 +257,50 @@ func (in *ScanSummary) DeepCopy() *ScanSummary {
return out return out
} }
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *ScannerConfig) DeepCopyInto(out *ScannerConfig) {
*out = *in
if in.Resources != nil {
in, out := &in.Resources, &out.Resources
*out = new(v1.ResourceRequirements)
(*in).DeepCopyInto(*out)
}
if in.Timeout != nil {
in, out := &in.Timeout, &out.Timeout
*out = new(metav1.Duration)
**out = **in
}
if in.TemplateURLs != nil {
in, out := &in.TemplateURLs, &out.TemplateURLs
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.NodeSelector != nil {
in, out := &in.NodeSelector, &out.NodeSelector
*out = make(map[string]string, len(*in))
for key, val := range *in {
(*out)[key] = val
}
}
if in.Tolerations != nil {
in, out := &in.Tolerations, &out.Tolerations
*out = make([]v1.Toleration, len(*in))
for i := range *in {
(*in)[i].DeepCopyInto(&(*out)[i])
}
}
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ScannerConfig.
func (in *ScannerConfig) DeepCopy() *ScannerConfig {
if in == nil {
return nil
}
out := new(ScannerConfig)
in.DeepCopyInto(out)
return out
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *SourceReference) DeepCopyInto(out *SourceReference) { func (in *SourceReference) DeepCopyInto(out *SourceReference) {
*out = *in *out = *in

86
charts/nuclei-operator/README.md
View File

@@ -2,6 +2,14 @@
A Helm chart for deploying the Nuclei Operator - a Kubernetes operator that automatically scans Ingress and VirtualService resources using Nuclei security scanner. A Helm chart for deploying the Nuclei Operator - a Kubernetes operator that automatically scans Ingress and VirtualService resources using Nuclei security scanner.
## Features
- **Pod-based Scanning Architecture**: Each scan runs in an isolated Kubernetes Job for better scalability and reliability
- **Annotation-based Configuration**: Configure scanning behavior per-resource using annotations
- **Automatic Discovery**: Watches Kubernetes Ingress and Istio VirtualService resources
- **Scheduled Scans**: Support for cron-based scheduled rescanning
- **Flexible Configuration**: Configurable templates, severity filters, and scan options
## Prerequisites ## Prerequisites
- Kubernetes 1.26+ - Kubernetes 1.26+
@@ -137,6 +145,24 @@ The following table lists the configurable parameters of the Nuclei Operator cha
| `nuclei.backoff.max` | Maximum backoff interval | `10m` | | `nuclei.backoff.max` | Maximum backoff interval | `10m` |
| `nuclei.backoff.multiplier` | Backoff multiplier | `2.0` | | `nuclei.backoff.multiplier` | Backoff multiplier | `2.0` |
### Scanner Pod Configuration
The operator uses a pod-based scanning architecture where each scan runs in its own Kubernetes Job. Configure scanner pod behavior with these parameters:
| Parameter | Description | Default |
|-----------|-------------|---------|
| `scanner.enabled` | Enable scanner RBAC resources | `true` |
| `scanner.image` | Scanner image (defaults to operator image) | `""` |
| `scanner.timeout` | Default scan timeout | `30m` |
| `scanner.maxConcurrent` | Maximum concurrent scan jobs | `5` |
| `scanner.ttlAfterFinished` | Job TTL after completion (seconds) | `3600` |
| `scanner.resources.requests.cpu` | Scanner pod CPU request | `100m` |
| `scanner.resources.requests.memory` | Scanner pod memory request | `256Mi` |
| `scanner.resources.limits.cpu` | Scanner pod CPU limit | `1` |
| `scanner.resources.limits.memory` | Scanner pod memory limit | `1Gi` |
| `scanner.defaultTemplates` | Default templates to use | `[]` |
| `scanner.defaultSeverity` | Default severity filter | `[]` |
### ServiceMonitor (Prometheus Operator) ### ServiceMonitor (Prometheus Operator)
| Parameter | Description | Default | | Parameter | Description | Default |
@@ -199,6 +225,28 @@ nuclei:
rescanAge: "24h" rescanAge: "24h"
``` ```
### With Custom Scanner Configuration
```yaml
# values.yaml
scanner:
enabled: true
timeout: "1h"
maxConcurrent: 10
ttlAfterFinished: 7200
resources:
requests:
cpu: 200m
memory: 512Mi
limits:
cpu: "2"
memory: 2Gi
defaultSeverity:
- medium
- high
- critical
```
### With Node Affinity ### With Node Affinity
```yaml ```yaml
@@ -215,6 +263,44 @@ affinity:
- arm64 - arm64
``` ```
## Annotation-Based Configuration
You can configure scanning behavior for individual Ingress or VirtualService resources using annotations:
| Annotation | Description |
|------------|-------------|
| `nuclei.homelab.mortenolsen.pro/enabled` | Enable/disable scanning (`true`/`false`) |
| `nuclei.homelab.mortenolsen.pro/templates` | Comma-separated list of template paths |
| `nuclei.homelab.mortenolsen.pro/severity` | Comma-separated severity filter |
| `nuclei.homelab.mortenolsen.pro/schedule` | Cron schedule for periodic scans |
| `nuclei.homelab.mortenolsen.pro/timeout` | Scan timeout duration |
| `nuclei.homelab.mortenolsen.pro/scanner-image` | Override scanner image |
### Example Annotated Ingress
```yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: myapp-ingress
annotations:
nuclei.homelab.mortenolsen.pro/enabled: "true"
nuclei.homelab.mortenolsen.pro/severity: "medium,high,critical"
nuclei.homelab.mortenolsen.pro/schedule: "0 2 * * *"
spec:
rules:
- host: myapp.example.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: myapp
port:
number: 80
```
## Uninstallation ## Uninstallation
```bash ```bash

18
charts/nuclei-operator/templates/deployment.yaml
View File

@@ -60,6 +60,24 @@ spec:
value: {{ .Values.nuclei.backoff.max | quote }} value: {{ .Values.nuclei.backoff.max | quote }}
- name: NUCLEI_BACKOFF_MULTIPLIER - name: NUCLEI_BACKOFF_MULTIPLIER
value: {{ .Values.nuclei.backoff.multiplier | quote }} value: {{ .Values.nuclei.backoff.multiplier | quote }}
- name: SCANNER_IMAGE
value: {{ .Values.scanner.image | default (printf "%s:%s" .Values.image.repository (.Values.image.tag | default .Chart.AppVersion)) | quote }}
- name: SCANNER_TIMEOUT
value: {{ .Values.scanner.timeout | quote }}
- name: MAX_CONCURRENT_SCANS
value: {{ .Values.scanner.maxConcurrent | quote }}
- name: JOB_TTL_AFTER_FINISHED
value: {{ .Values.scanner.ttlAfterFinished | quote }}
- name: SCANNER_SERVICE_ACCOUNT
value: {{ include "nuclei-operator.fullname" . }}-scanner
{{- if .Values.scanner.defaultTemplates }}
- name: DEFAULT_TEMPLATES
value: {{ join "," .Values.scanner.defaultTemplates | quote }}
{{- end }}
{{- if .Values.scanner.defaultSeverity }}
- name: DEFAULT_SEVERITY
value: {{ join "," .Values.scanner.defaultSeverity | quote }}
{{- end }}
ports: [] ports: []
securityContext: securityContext:
{{- toYaml .Values.securityContext | nindent 10 }} {{- toYaml .Values.securityContext | nindent 10 }}

26
charts/nuclei-operator/templates/rbac.yaml
View File

@@ -6,6 +6,18 @@ metadata:
labels: labels:
{{- include "nuclei-operator.labels" . | nindent 4 }} {{- include "nuclei-operator.labels" . | nindent 4 }}
rules: rules:
- apiGroups:
- batch
resources:
- jobs
verbs:
- create
- delete
- get
- list
- patch
- update
- watch
- apiGroups: - apiGroups:
- "" - ""
resources: resources:
@@ -13,6 +25,20 @@ rules:
verbs: verbs:
- create - create
- patch - patch
- apiGroups:
- ""
resources:
- pods
verbs:
- get
- list
- watch
- apiGroups:
- ""
resources:
- pods/log
verbs:
- get
- apiGroups: - apiGroups:
- networking.istio.io - networking.istio.io
resources: resources:

51
charts/nuclei-operator/templates/scanner-rbac.yaml Normal file
View File

@@ -0,0 +1,51 @@
{{- if .Values.scanner.enabled }}
apiVersion: v1
kind: ServiceAccount
metadata:
name: {{ include "nuclei-operator.fullname" . }}-scanner
namespace: {{ .Release.Namespace }}
labels:
{{- include "nuclei-operator.labels" . | nindent 4 }}
app.kubernetes.io/component: scanner
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: {{ include "nuclei-operator.fullname" . }}-scanner
labels:
{{- include "nuclei-operator.labels" . | nindent 4 }}
app.kubernetes.io/component: scanner
rules:
# Scanner needs to read NucleiScan resources
- apiGroups:
- nuclei.homelab.mortenolsen.pro
resources:
- nucleiscans
verbs:
- get
# Scanner needs to update NucleiScan status
- apiGroups:
- nuclei.homelab.mortenolsen.pro
resources:
- nucleiscans/status
verbs:
- get
- patch
- update
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: {{ include "nuclei-operator.fullname" . }}-scanner
labels:
{{- include "nuclei-operator.labels" . | nindent 4 }}
app.kubernetes.io/component: scanner
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: {{ include "nuclei-operator.fullname" . }}-scanner
subjects:
- kind: ServiceAccount
name: {{ include "nuclei-operator.fullname" . }}-scanner
namespace: {{ .Release.Namespace }}
{{- end }}

32
charts/nuclei-operator/values.yaml
View File

@@ -131,3 +131,35 @@ serviceMonitor:
networkPolicy: networkPolicy:
# Enable network policy # Enable network policy
enabled: false enabled: false
# Scanner configuration
scanner:
# Enable scanner RBAC resources
enabled: true
# Scanner image (defaults to operator image)
image: ""
# Default scan timeout
timeout: "30m"
# Maximum concurrent scan jobs
maxConcurrent: 5
# Job TTL after completion (seconds)
ttlAfterFinished: 3600
# Default resource requirements for scanner pods
resources:
requests:
cpu: 100m
memory: 256Mi
limits:
cpu: "1"
memory: 1Gi
# Default templates to use
defaultTemplates: []
# Default severity filter
defaultSeverity: []

190
cmd/main.go
View File

@@ -17,9 +17,14 @@ limitations under the License.
package main package main
import ( import (
"context"
"crypto/tls" "crypto/tls"
"flag" "flag"
"fmt"
"os" "os"
"strconv"
"strings"
"time"
// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.) // Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
// to ensure that exec-entrypoint and run can make use of them. // to ensure that exec-entrypoint and run can make use of them.
@@ -27,10 +32,12 @@ import (
istionetworkingv1beta1 "istio.io/client-go/pkg/apis/networking/v1beta1" istionetworkingv1beta1 "istio.io/client-go/pkg/apis/networking/v1beta1"
networkingv1 "k8s.io/api/networking/v1" networkingv1 "k8s.io/api/networking/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime" "k8s.io/apimachinery/pkg/runtime"
utilruntime "k8s.io/apimachinery/pkg/util/runtime" utilruntime "k8s.io/apimachinery/pkg/util/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme" clientgoscheme "k8s.io/client-go/kubernetes/scheme"
ctrl "sigs.k8s.io/controller-runtime" ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/healthz" "sigs.k8s.io/controller-runtime/pkg/healthz"
"sigs.k8s.io/controller-runtime/pkg/log/zap" "sigs.k8s.io/controller-runtime/pkg/log/zap"
"sigs.k8s.io/controller-runtime/pkg/metrics/filters" "sigs.k8s.io/controller-runtime/pkg/metrics/filters"
@@ -39,6 +46,7 @@ import (
nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1" nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1"
"github.com/mortenolsen/nuclei-operator/internal/controller" "github.com/mortenolsen/nuclei-operator/internal/controller"
"github.com/mortenolsen/nuclei-operator/internal/jobmanager"
"github.com/mortenolsen/nuclei-operator/internal/scanner" "github.com/mortenolsen/nuclei-operator/internal/scanner"
// +kubebuilder:scaffold:imports // +kubebuilder:scaffold:imports
) )
@@ -67,6 +75,15 @@ func main() {
var secureMetrics bool var secureMetrics bool
var enableHTTP2 bool var enableHTTP2 bool
var tlsOpts []func(*tls.Config) var tlsOpts []func(*tls.Config)
// Scanner mode flags
var mode string
var scanName string
var scanNamespace string
flag.StringVar(&mode, "mode", "controller", "Run mode: 'controller' or 'scanner'")
flag.StringVar(&scanName, "scan-name", "", "Name of the NucleiScan to execute (scanner mode only)")
flag.StringVar(&scanNamespace, "scan-namespace", "", "Namespace of the NucleiScan (scanner mode only)")
flag.StringVar(&metricsAddr, "metrics-bind-address", "0", "The address the metrics endpoint binds to. "+ flag.StringVar(&metricsAddr, "metrics-bind-address", "0", "The address the metrics endpoint binds to. "+
"Use :8443 for HTTPS or :8080 for HTTP, or leave as 0 to disable the metrics service.") "Use :8443 for HTTPS or :8080 for HTTP, or leave as 0 to disable the metrics service.")
flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.") flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
@@ -92,6 +109,15 @@ func main() {
ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts))) ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
// Check if running in scanner mode
if mode == "scanner" {
if err := scanner.RunScannerMode(scanName, scanNamespace); err != nil {
setupLog.Error(err, "Scanner mode failed")
os.Exit(1)
}
os.Exit(0)
}
// if the enable-http2 flag is false (the default), http/2 should be disabled // if the enable-http2 flag is false (the default), http/2 should be disabled
// due to its vulnerabilities. More specifically, disabling http/2 will // due to its vulnerabilities. More specifically, disabling http/2 will
// prevent from being vulnerable to the HTTP/2 Stream Cancellation and // prevent from being vulnerable to the HTTP/2 Stream Cancellation and
@@ -183,10 +209,103 @@ func main() {
os.Exit(1) os.Exit(1)
} }
// Parse environment variables for JobManager configuration
scannerImage := os.Getenv("SCANNER_IMAGE")
if scannerImage == "" {
scannerImage = jobmanager.DefaultScannerImage
}
scannerTimeout := 30 * time.Minute
if v := os.Getenv("SCANNER_TIMEOUT"); v != "" {
if d, err := time.ParseDuration(v); err == nil {
scannerTimeout = d
}
}
maxConcurrentScans := 5
if v := os.Getenv("MAX_CONCURRENT_SCANS"); v != "" {
if n, err := strconv.Atoi(v); err == nil {
maxConcurrentScans = n
}
}
ttlAfterFinished := int32(3600)
if v := os.Getenv("JOB_TTL_AFTER_FINISHED"); v != "" {
if n, err := strconv.Atoi(v); err == nil {
ttlAfterFinished = int32(n)
}
}
scannerServiceAccount := os.Getenv("SCANNER_SERVICE_ACCOUNT")
if scannerServiceAccount == "" {
scannerServiceAccount = "nuclei-scanner"
}
defaultTemplates := []string{}
if v := os.Getenv("DEFAULT_TEMPLATES"); v != "" {
defaultTemplates = strings.Split(v, ",")
}
defaultSeverity := []string{}
if v := os.Getenv("DEFAULT_SEVERITY"); v != "" {
defaultSeverity = strings.Split(v, ",")
}
// Create the JobManager configuration
jobManagerConfig := jobmanager.Config{
ScannerImage: scannerImage,
DefaultTimeout: scannerTimeout,
TTLAfterFinished: ttlAfterFinished,
BackoffLimit: 2,
MaxConcurrent: maxConcurrentScans,
ServiceAccountName: scannerServiceAccount,
DefaultResources: jobmanager.DefaultConfig().DefaultResources,
DefaultTemplates: defaultTemplates,
DefaultSeverity: defaultSeverity,
}
// Create the JobManager for scanner job management
jobMgr := jobmanager.NewJobManager(
mgr.GetClient(),
mgr.GetScheme(),
jobManagerConfig,
)
// Run startup recovery to handle orphaned scans from previous operator instance
setupLog.Info("Running startup recovery")
if err := runStartupRecovery(mgr.GetClient(), jobMgr); err != nil {
setupLog.Error(err, "Startup recovery failed")
// Don't exit - continue with normal operation
}
// Create a context that will be cancelled when the manager stops
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// Start periodic cleanup goroutine
go func() {
ticker := time.NewTicker(5 * time.Minute)
defer ticker.Stop()
for {
select {
case <-ticker.C:
if err := jobMgr.CleanupOrphanedJobs(ctx); err != nil {
setupLog.Error(err, "Periodic cleanup failed")
}
case <-ctx.Done():
return
}
}
}()
// Create the NucleiScan reconciler with JobManager
if err := controller.NewNucleiScanReconciler( if err := controller.NewNucleiScanReconciler(
mgr.GetClient(), mgr.GetClient(),
mgr.GetScheme(), mgr.GetScheme(),
scanner.NewNucleiScannerWithDefaults(), mgr.GetEventRecorderFor("nucleiscan-controller"),
jobMgr,
controller.DefaultReconcilerConfig(),
).SetupWithManager(mgr); err != nil { ).SetupWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create controller", "controller", "NucleiScan") setupLog.Error(err, "unable to create controller", "controller", "NucleiScan")
os.Exit(1) os.Exit(1)
@@ -222,3 +341,72 @@ func main() {
os.Exit(1) os.Exit(1)
} }
} }
// runStartupRecovery handles orphaned scans and jobs from previous operator instance
func runStartupRecovery(c client.Client, jobMgr *jobmanager.JobManager) error {
ctx := context.Background()
// List all NucleiScans in Running phase
scanList := &nucleiv1alpha1.NucleiScanList{}
if err := c.List(ctx, scanList); err != nil {
return fmt.Errorf("failed to list NucleiScans: %w", err)
}
for _, scan := range scanList.Items {
if scan.Status.Phase != nucleiv1alpha1.ScanPhaseRunning {
continue
}
// Check if the referenced job still exists
if scan.Status.JobRef != nil {
job, err := jobMgr.GetJob(ctx, scan.Status.JobRef.Name, scan.Namespace)
if err != nil {
if apierrors.IsNotFound(err) {
// Job is gone - reset scan to Pending
scan.Status.Phase = nucleiv1alpha1.ScanPhasePending
scan.Status.LastError = "Recovered from operator restart - job not found"
scan.Status.JobRef = nil
if updateErr := c.Status().Update(ctx, &scan); updateErr != nil {
return fmt.Errorf("failed to update scan %s: %w", scan.Name, updateErr)
}
continue
}
return fmt.Errorf("failed to get job for scan %s: %w", scan.Name, err)
}
// Job exists - check if it's completed but status wasn't updated
if jobMgr.IsJobComplete(job) {
// The scanner pod should have updated the status
// If it didn't, mark as failed
if scan.Status.Phase == nucleiv1alpha1.ScanPhaseRunning {
if jobMgr.IsJobFailed(job) {
scan.Status.Phase = nucleiv1alpha1.ScanPhaseFailed
scan.Status.LastError = "Job completed during operator downtime: " + jobMgr.GetJobFailureReason(job)
} else {
// Job succeeded but status wasn't updated - this shouldn't happen
// but handle it gracefully
scan.Status.Phase = nucleiv1alpha1.ScanPhaseFailed
scan.Status.LastError = "Job completed during operator downtime but status was not updated"
}
if updateErr := c.Status().Update(ctx, &scan); updateErr != nil {
return fmt.Errorf("failed to update scan %s: %w", scan.Name, updateErr)
}
}
}
} else {
// No job reference but Running - invalid state
scan.Status.Phase = nucleiv1alpha1.ScanPhasePending
scan.Status.LastError = "Recovered from invalid state - no job reference"
if updateErr := c.Status().Update(ctx, &scan); updateErr != nil {
return fmt.Errorf("failed to update scan %s: %w", scan.Name, updateErr)
}
}
}
// Clean up orphaned jobs
if err := jobMgr.CleanupOrphanedJobs(ctx); err != nil {
return fmt.Errorf("failed to cleanup orphaned jobs: %w", err)
}
return nil
}

146
config/crd/bases/nuclei.homelab.mortenolsen.pro_nucleiscans.yaml
View File

@@ -55,6 +55,127 @@ spec:
spec: spec:
description: NucleiScanSpec defines the desired state of NucleiScan description: NucleiScanSpec defines the desired state of NucleiScan
properties: properties:
scannerConfig:
description: ScannerConfig allows overriding scanner settings for
this scan
properties:
image:
description: Image overrides the default scanner image
type: string
nodeSelector:
additionalProperties:
type: string
description: NodeSelector for scanner pod scheduling
type: object
resources:
description: Resources defines resource requirements for the scanner
pod
properties:
claims:
description: |-
Claims lists the names of resources, defined in spec.resourceClaims,
that are used by this container.
This field depends on the
DynamicResourceAllocation feature gate.
This field is immutable. It can only be set for containers.
items:
description: ResourceClaim references one entry in PodSpec.ResourceClaims.
properties:
name:
description: |-
Name must match the name of one entry in pod.spec.resourceClaims of
the Pod where this field is used. It makes that resource available
inside a container.
type: string
request:
description: |-
Request is the name chosen for a request in the referenced claim.
If empty, everything from the claim is made available, otherwise
only the result of this request.
type: string
required:
- name
type: object
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
limits:
additionalProperties:
anyOf:
- type: integer
- type: string
pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
x-kubernetes-int-or-string: true
description: |-
Limits describes the maximum amount of compute resources allowed.
More info: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/
type: object
requests:
additionalProperties:
anyOf:
- type: integer
- type: string
pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
x-kubernetes-int-or-string: true
description: |-
Requests describes the minimum amount of compute resources required.
If Requests is omitted for a container, it defaults to Limits if that is explicitly specified,
otherwise to an implementation-defined value. Requests cannot exceed Limits.
More info: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/
type: object
type: object
templateURLs:
description: TemplateURLs specifies additional template repositories
to clone
items:
type: string
type: array
timeout:
description: Timeout overrides the default scan timeout
type: string
tolerations:
description: Tolerations for scanner pod scheduling
items:
description: |-
The pod this Toleration is attached to tolerates any taint that matches
the triple <key,value,effect> using the matching operator <operator>.
properties:
effect:
description: |-
Effect indicates the taint effect to match. Empty means match all taint effects.
When specified, allowed values are NoSchedule, PreferNoSchedule and NoExecute.
type: string
key:
description: |-
Key is the taint key that the toleration applies to. Empty means match all taint keys.
If the key is empty, operator must be Exists; this combination means to match all values and all keys.
type: string
operator:
description: |-
Operator represents a key's relationship to the value.
Valid operators are Exists and Equal. Defaults to Equal.
Exists is equivalent to wildcard for value, so that a pod can
tolerate all taints of a particular category.
type: string
tolerationSeconds:
description: |-
TolerationSeconds represents the period of time the toleration (which must be
of effect NoExecute, otherwise this field is ignored) tolerates the taint. By default,
it is not set, which means tolerate the taint forever (do not evict). Zero and
negative values will be treated as 0 (evict immediately) by the system.
format: int64
type: integer
value:
description: |-
Value is the taint value the toleration matches to.
If the operator is Exists, the value should be empty, otherwise just a regular string.
type: string
type: object
type: array
type: object
schedule: schedule:
description: |- description: |-
Schedule for periodic rescanning in cron format Schedule for periodic rescanning in cron format
@@ -249,6 +370,26 @@ spec:
- timestamp - timestamp
type: object type: object
type: array type: array
jobRef:
description: JobRef references the current or last scanner job
properties:
name:
description: Name of the Job
type: string
podName:
description: PodName is the name of the scanner pod (for log retrieval)
type: string
startTime:
description: StartTime when the job was created
format: date-time
type: string
uid:
description: UID of the Job
type: string
required:
- name
- uid
type: object
lastError: lastError:
description: LastError contains the error message if the scan failed description: LastError contains the error message if the scan failed
type: string type: string
@@ -284,6 +425,11 @@ spec:
RetryCount tracks the number of consecutive availability check retries RetryCount tracks the number of consecutive availability check retries
Used for exponential backoff when waiting for targets Used for exponential backoff when waiting for targets
type: integer type: integer
scanStartTime:
description: ScanStartTime is when the scanner pod actually started
scanning
format: date-time
type: string
summary: summary:
description: Summary provides aggregated scan statistics description: Summary provides aggregated scan statistics
properties: properties:

20
config/rbac/role.yaml
View File

@@ -11,6 +11,26 @@ rules:
verbs: verbs:
- create - create
- patch - patch
- apiGroups:
- ""
resources:
- pods
verbs:
- get
- list
- watch
- apiGroups:
- batch
resources:
- jobs
verbs:
- create
- delete
- get
- list
- patch
- update
- watch
- apiGroups: - apiGroups:
- networking.istio.io - networking.istio.io
resources: resources:

92
config/samples/example-ingress.yaml
View File

@@ -1,6 +1,43 @@
# Example Ingress resource that would trigger NucleiScan creation # Example Ingress resource that would trigger NucleiScan creation
# When this Ingress is created, the nuclei-operator will automatically # When this Ingress is created, the nuclei-operator will automatically
# create a corresponding NucleiScan resource to scan the exposed endpoints. # create a corresponding NucleiScan resource to scan the exposed endpoints.
#
# The operator uses a pod-based scanning architecture where each scan
# runs in an isolated Kubernetes Job for better scalability and reliability.
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: example-ingress
namespace: default
labels:
app.kubernetes.io/name: example-app
app.kubernetes.io/managed-by: kustomize
annotations:
# Nuclei scanning configuration
nuclei.homelab.mortenolsen.pro/enabled: "true"
nuclei.homelab.mortenolsen.pro/severity: "medium,high,critical"
nuclei.homelab.mortenolsen.pro/schedule: "0 2 * * *"
# Optional: Additional scanning configuration
# nuclei.homelab.mortenolsen.pro/templates: "cves/,vulnerabilities/"
# nuclei.homelab.mortenolsen.pro/timeout: "1h"
# nuclei.homelab.mortenolsen.pro/scanner-image: "custom-scanner:latest"
# nuclei.homelab.mortenolsen.pro/tags: "cve,oast"
# nuclei.homelab.mortenolsen.pro/exclude-tags: "dos"
kubernetes.io/ingress.class: nginx
spec:
rules:
- host: example.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: example-service
port:
number: 80
---
# Example Ingress with TLS - endpoints will be scanned with HTTPS
apiVersion: networking.k8s.io/v1 apiVersion: networking.k8s.io/v1
kind: Ingress kind: Ingress
metadata: metadata:
@@ -10,9 +47,10 @@ metadata:
app.kubernetes.io/name: example-app app.kubernetes.io/name: example-app
app.kubernetes.io/managed-by: kustomize app.kubernetes.io/managed-by: kustomize
annotations: annotations:
# Optional: Add annotations to customize scan behavior # Nuclei scanning configuration
# nuclei.homelab.mortenolsen.pro/scan-enabled: "true" nuclei.homelab.mortenolsen.pro/enabled: "true"
# nuclei.homelab.mortenolsen.pro/severity: "high,critical" nuclei.homelab.mortenolsen.pro/severity: "high,critical"
nuclei.homelab.mortenolsen.pro/templates: "cves/,vulnerabilities/,exposures/"
kubernetes.io/ingress.class: nginx kubernetes.io/ingress.class: nginx
spec: spec:
# TLS configuration - endpoints will be scanned with HTTPS # TLS configuration - endpoints will be scanned with HTTPS
@@ -52,8 +90,8 @@ spec:
port: port:
number: 8080 number: 8080
--- ---
# Example Ingress without TLS (HTTP only) # Example Ingress with scanning disabled
# This will be scanned with HTTP scheme # This will NOT trigger a NucleiScan creation
apiVersion: networking.k8s.io/v1 apiVersion: networking.k8s.io/v1
kind: Ingress kind: Ingress
metadata: metadata:
@@ -61,6 +99,9 @@ metadata:
namespace: default namespace: default
labels: labels:
app.kubernetes.io/name: internal-app app.kubernetes.io/name: internal-app
annotations:
# Disable scanning for this internal resource
nuclei.homelab.mortenolsen.pro/enabled: "false"
spec: spec:
rules: rules:
- host: internal.example.local - host: internal.example.local
@@ -73,3 +114,44 @@ spec:
name: internal-app name: internal-app
port: port:
number: 80 number: 80
---
# Example Ingress with full annotation configuration
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: fully-configured-ingress
namespace: default
labels:
app.kubernetes.io/name: configured-app
annotations:
# Enable scanning
nuclei.homelab.mortenolsen.pro/enabled: "true"
# Severity filter - only report medium and above
nuclei.homelab.mortenolsen.pro/severity: "medium,high,critical"
# Schedule daily scans at 2 AM
nuclei.homelab.mortenolsen.pro/schedule: "0 2 * * *"
# Use specific template directories
nuclei.homelab.mortenolsen.pro/templates: "cves/,vulnerabilities/,misconfiguration/"
# Set scan timeout to 1 hour
nuclei.homelab.mortenolsen.pro/timeout: "1h"
# Include specific tags
nuclei.homelab.mortenolsen.pro/tags: "cve,oast,sqli,xss"
# Exclude certain tags
nuclei.homelab.mortenolsen.pro/exclude-tags: "dos,fuzz"
kubernetes.io/ingress.class: nginx
spec:
tls:
- hosts:
- secure.example.com
secretName: secure-tls-secret
rules:
- host: secure.example.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: secure-app
port:
number: 443

100
docs/api.md
View File

@@ -10,6 +10,8 @@ This document provides a complete reference for the Nuclei Operator Custom Resou
- [Status](#status) - [Status](#status)
- [Type Definitions](#type-definitions) - [Type Definitions](#type-definitions)
- [SourceReference](#sourcereference) - [SourceReference](#sourcereference)
- [ScannerConfig](#scannerconfig)
- [JobReference](#jobreference)
- [Finding](#finding) - [Finding](#finding)
- [ScanSummary](#scansummary) - [ScanSummary](#scansummary)
- [ScanPhase](#scanphase) - [ScanPhase](#scanphase)
@@ -62,6 +64,16 @@ spec:
- critical - critical
schedule: "@every 24h" schedule: "@every 24h"
suspend: false suspend: false
scannerConfig:
image: "custom-scanner:latest"
timeout: "1h"
resources:
requests:
cpu: 200m
memory: 512Mi
limits:
cpu: "1"
memory: 1Gi
``` ```
#### Spec Fields #### Spec Fields
@@ -74,6 +86,7 @@ spec:
| `severity` | []string | No | Severity filter. Valid values: `info`, `low`, `medium`, `high`, `critical` | | `severity` | []string | No | Severity filter. Valid values: `info`, `low`, `medium`, `high`, `critical` |
| `schedule` | string | No | Cron schedule for periodic rescanning | | `schedule` | string | No | Cron schedule for periodic rescanning |
| `suspend` | bool | No | When true, suspends scheduled scans | | `suspend` | bool | No | When true, suspends scheduled scans |
| `scannerConfig` | [ScannerConfig](#scannerconfig) | No | Scanner-specific configuration overrides |
#### Schedule Format #### Schedule Format
@@ -110,6 +123,12 @@ status:
lastScanTime: "2024-01-15T10:30:00Z" lastScanTime: "2024-01-15T10:30:00Z"
completionTime: "2024-01-15T10:35:00Z" completionTime: "2024-01-15T10:35:00Z"
nextScheduledTime: "2024-01-16T10:30:00Z" nextScheduledTime: "2024-01-16T10:30:00Z"
scanStartTime: "2024-01-15T10:30:05Z"
jobRef:
name: my-app-scan-abc123
uid: "job-uid-12345"
podName: my-app-scan-abc123-xyz
startTime: "2024-01-15T10:30:00Z"
summary: summary:
totalFindings: 3 totalFindings: 3
findingsBySeverity: findingsBySeverity:
@@ -127,6 +146,7 @@ status:
timestamp: "2024-01-15T10:32:00Z" timestamp: "2024-01-15T10:32:00Z"
lastError: "" lastError: ""
observedGeneration: 1 observedGeneration: 1
retryCount: 0
``` ```
#### Status Fields #### Status Fields
@@ -138,10 +158,14 @@ status:
| `lastScanTime` | *Time | When the last scan was initiated | | `lastScanTime` | *Time | When the last scan was initiated |
| `completionTime` | *Time | When the last scan completed | | `completionTime` | *Time | When the last scan completed |
| `nextScheduledTime` | *Time | When the next scheduled scan will run | | `nextScheduledTime` | *Time | When the next scheduled scan will run |
| `scanStartTime` | *Time | When the scanner pod actually started scanning |
| `jobRef` | *[JobReference](#jobreference) | Reference to the current or last scanner job |
| `summary` | *[ScanSummary](#scansummary) | Aggregated scan statistics | | `summary` | *[ScanSummary](#scansummary) | Aggregated scan statistics |
| `findings` | [][Finding](#finding) | Array of scan results | | `findings` | [][Finding](#finding) | Array of scan results |
| `lastError` | string | Error message if the scan failed | | `lastError` | string | Error message if the scan failed |
| `observedGeneration` | int64 | Generation observed by the controller | | `observedGeneration` | int64 | Generation observed by the controller |
| `retryCount` | int | Number of consecutive availability check retries |
| `lastRetryTime` | *Time | When the last availability check retry occurred |
#### Conditions #### Conditions
@@ -188,6 +212,82 @@ type SourceReference struct {
| `namespace` | string | Yes | Namespace of the source resource | | `namespace` | string | Yes | Namespace of the source resource |
| `uid` | string | Yes | UID of the source resource | | `uid` | string | Yes | UID of the source resource |
### ScannerConfig
`ScannerConfig` defines scanner-specific configuration that can override default settings.
```go
type ScannerConfig struct {
Image string `json:"image,omitempty"`
Resources *corev1.ResourceRequirements `json:"resources,omitempty"`
Timeout *metav1.Duration `json:"timeout,omitempty"`
TemplateURLs []string `json:"templateURLs,omitempty"`
NodeSelector map[string]string `json:"nodeSelector,omitempty"`
Tolerations []corev1.Toleration `json:"tolerations,omitempty"`
}
```
| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `image` | string | No | Override the default scanner image |
| `resources` | ResourceRequirements | No | Resource requirements for the scanner pod |
| `timeout` | Duration | No | Override the default scan timeout |
| `templateURLs` | []string | No | Additional template repositories to clone |
| `nodeSelector` | map[string]string | No | Node selector for scanner pod scheduling |
| `tolerations` | []Toleration | No | Tolerations for scanner pod scheduling |
**Example:**
```yaml
scannerConfig:
image: "ghcr.io/custom/scanner:v1.0.0"
timeout: "1h"
resources:
requests:
cpu: 200m
memory: 512Mi
limits:
cpu: "2"
memory: 2Gi
nodeSelector:
node-type: scanner
tolerations:
- key: "dedicated"
operator: "Equal"
value: "scanner"
effect: "NoSchedule"
```
### JobReference
`JobReference` contains information about the scanner job for tracking and debugging.
```go
type JobReference struct {
Name string `json:"name"`
UID string `json:"uid"`
PodName string `json:"podName,omitempty"`
StartTime *metav1.Time `json:"startTime,omitempty"`
}
```
| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `name` | string | Yes | Name of the Kubernetes Job |
| `uid` | string | Yes | UID of the Job |
| `podName` | string | No | Name of the scanner pod (for log retrieval) |
| `startTime` | *Time | No | When the job was created |
**Example:**
```yaml
jobRef:
name: my-scan-abc123
uid: "12345678-1234-1234-1234-123456789012"
podName: my-scan-abc123-xyz
startTime: "2024-01-15T10:30:00Z"
```
### Finding ### Finding
`Finding` represents a single vulnerability or issue discovered during a scan. `Finding` represents a single vulnerability or issue discovered during a scan.

224
docs/user-guide.md
View File

@@ -7,6 +7,8 @@ This guide provides detailed instructions for using the Nuclei Operator to autom
- [Introduction](#introduction) - [Introduction](#introduction)
- [Installation](#installation) - [Installation](#installation)
- [Basic Usage](#basic-usage) - [Basic Usage](#basic-usage)
- [Scanner Architecture](#scanner-architecture)
- [Annotation-Based Configuration](#annotation-based-configuration)
- [Configuration Options](#configuration-options) - [Configuration Options](#configuration-options)
- [Working with Ingress Resources](#working-with-ingress-resources) - [Working with Ingress Resources](#working-with-ingress-resources)
- [Working with VirtualService Resources](#working-with-virtualservice-resources) - [Working with VirtualService Resources](#working-with-virtualservice-resources)
@@ -24,11 +26,13 @@ The Nuclei Operator automates security scanning by watching for Kubernetes Ingre
1. Extracts target URLs from the resource 1. Extracts target URLs from the resource
2. Creates a NucleiScan custom resource 2. Creates a NucleiScan custom resource
3. Executes a Nuclei security scan 3. Creates a Kubernetes Job to execute the Nuclei security scan in an isolated pod
4. Stores the results in the NucleiScan status 4. Stores the results in the NucleiScan status
This enables continuous security monitoring of your web applications without manual intervention. This enables continuous security monitoring of your web applications without manual intervention.
The operator uses a **pod-based scanning architecture** where each scan runs in its own isolated Kubernetes Job, providing better scalability, reliability, and resource control.
--- ---
## Installation ## Installation
@@ -151,6 +155,224 @@ kubectl apply -f manual-scan.yaml
--- ---
## Scanner Architecture
The nuclei-operator uses a pod-based scanning architecture for improved scalability and reliability:
1. **Operator Pod**: Manages NucleiScan resources and creates scanner jobs
2. **Scanner Jobs**: Kubernetes Jobs that execute nuclei scans in isolated pods
3. **Direct Status Updates**: Scanner pods update NucleiScan status directly via the Kubernetes API
### Architecture Diagram
```
┌─────────────────────────────────────────────────────────────────────┐
│ Kubernetes Cluster │
│ │
│ ┌──────────────────┐ ┌──────────────────────────────────────┐ │
│ │ Operator Pod │ │ Scanner Jobs │ │
│ │ │ │ │ │
│ │ ┌────────────┐ │ │ ┌─────────┐ ┌─────────┐ │ │
│ │ │ Controller │──┼─────┼─▶│ Job 1 │ │ Job 2 │ ... │ │
│ │ │ Manager │ │ │ │(Scanner)│ │(Scanner)│ │ │
│ │ └────────────┘ │ │ └────┬────┘ └────┬────┘ │ │
│ │ │ │ │ │ │ │ │
│ └────────┼─────────┘ └───────┼────────────┼─────────────────┘ │
│ │ │ │ │
│ ▼ ▼ ▼ │
│ ┌──────────────────────────────────────────────────────────────┐ │
│ │ Kubernetes API Server │ │
│ │ │ │
│ │ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ │
│ │ │ NucleiScan │ │ NucleiScan │ │ NucleiScan │ ... │ │
│ │ │ Resource │ │ Resource │ │ Resource │ │ │
│ │ └─────────────┘ └─────────────┘ └─────────────┘ │ │
│ └──────────────────────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────────┘
```
### Benefits
- **Scalability**: Multiple scans can run concurrently across the cluster
- **Isolation**: Each scan runs in its own pod with dedicated resources
- **Reliability**: Scans survive operator restarts
- **Resource Control**: Per-scan resource limits and quotas
- **Observability**: Individual pod logs for each scan
### Scanner Configuration
Configure scanner behavior via Helm values:
```yaml
scanner:
# Enable scanner RBAC resources
enabled: true
# Scanner image (defaults to operator image)
image: "ghcr.io/morten-olsen/nuclei-operator:latest"
# Default scan timeout
timeout: "30m"
# Maximum concurrent scan jobs
maxConcurrent: 5
# Job TTL after completion (seconds)
ttlAfterFinished: 3600
# Default resource requirements for scanner pods
resources:
requests:
cpu: 100m
memory: 256Mi
limits:
cpu: "1"
memory: 1Gi
# Default templates to use
defaultTemplates: []
# Default severity filter
defaultSeverity: []
```
### Per-Scan Scanner Configuration
You can override scanner settings for individual scans using the `scannerConfig` field in the NucleiScan spec:
```yaml
apiVersion: nuclei.homelab.mortenolsen.pro/v1alpha1
kind: NucleiScan
metadata:
name: custom-scan
spec:
sourceRef:
apiVersion: networking.k8s.io/v1
kind: Ingress
name: my-ingress
namespace: default
uid: "abc123"
targets:
- https://example.com
scannerConfig:
# Override scanner image
image: "custom-scanner:latest"
# Override timeout
timeout: "1h"
# Custom resource requirements
resources:
requests:
cpu: 200m
memory: 512Mi
limits:
cpu: "2"
memory: 2Gi
# Node selector for scanner pod
nodeSelector:
node-type: scanner
# Tolerations for scanner pod
tolerations:
- key: "scanner"
operator: "Equal"
value: "true"
effect: "NoSchedule"
```
---
## Annotation-Based Configuration
You can configure scanning behavior for individual Ingress or VirtualService resources using annotations.
### Supported Annotations
| Annotation | Type | Default | Description |
|------------|------|---------|-------------|
| `nuclei.homelab.mortenolsen.pro/enabled` | bool | `true` | Enable/disable scanning for this resource |
| `nuclei.homelab.mortenolsen.pro/templates` | string | - | Comma-separated list of template paths or tags |
| `nuclei.homelab.mortenolsen.pro/severity` | string | - | Comma-separated severity filter: info,low,medium,high,critical |
| `nuclei.homelab.mortenolsen.pro/schedule` | string | - | Cron schedule for periodic scans |
| `nuclei.homelab.mortenolsen.pro/timeout` | duration | `30m` | Scan timeout |
| `nuclei.homelab.mortenolsen.pro/scanner-image` | string | - | Override scanner image |
| `nuclei.homelab.mortenolsen.pro/exclude-templates` | string | - | Templates to exclude |
| `nuclei.homelab.mortenolsen.pro/tags` | string | - | Template tags to include |
| `nuclei.homelab.mortenolsen.pro/exclude-tags` | string | - | Template tags to exclude |
### Example Annotated Ingress
```yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: myapp-ingress
annotations:
nuclei.homelab.mortenolsen.pro/enabled: "true"
nuclei.homelab.mortenolsen.pro/severity: "medium,high,critical"
nuclei.homelab.mortenolsen.pro/schedule: "0 2 * * *"
nuclei.homelab.mortenolsen.pro/templates: "cves/,vulnerabilities/"
spec:
rules:
- host: myapp.example.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: myapp
port:
number: 80
```
### Example Annotated VirtualService
```yaml
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
name: myapp-vs
annotations:
nuclei.homelab.mortenolsen.pro/enabled: "true"
nuclei.homelab.mortenolsen.pro/severity: "high,critical"
nuclei.homelab.mortenolsen.pro/timeout: "1h"
nuclei.homelab.mortenolsen.pro/tags: "cve,oast"
spec:
hosts:
- myapp.example.com
gateways:
- my-gateway
http:
- route:
- destination:
host: myapp
port:
number: 80
```
### Disabling Scanning
To disable scanning for a specific resource:
```yaml
metadata:
annotations:
nuclei.homelab.mortenolsen.pro/enabled: "false"
```
This is useful when you want to temporarily exclude certain resources from scanning without removing them from the cluster.
### Annotation Precedence
When both annotations and NucleiScan spec fields are present, the following precedence applies:
1. **NucleiScan spec fields** (highest priority) - Direct configuration in the NucleiScan resource
2. **Annotations** - Configuration from the source Ingress/VirtualService
3. **Helm values** - Default configuration from the operator deployment
4. **Built-in defaults** (lowest priority) - Hardcoded defaults in the operator
---
## Configuration Options ## Configuration Options
### Severity Filtering ### Severity Filtering

211
internal/annotations/annotations.go Normal file
View File

@@ -0,0 +1,211 @@
/*
Copyright 2024.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package annotations
import (
"strconv"
"strings"
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1"
)
const (
// AnnotationPrefix is the prefix for all nuclei annotations
AnnotationPrefix = "nuclei.homelab.mortenolsen.pro/"
// AnnotationEnabled controls whether scanning is enabled for a resource
AnnotationEnabled = AnnotationPrefix + "enabled"
// AnnotationTemplates specifies comma-separated template paths or tags
AnnotationTemplates = AnnotationPrefix + "templates"
// AnnotationSeverity specifies comma-separated severity filter
AnnotationSeverity = AnnotationPrefix + "severity"
// AnnotationSchedule specifies the cron schedule for periodic scans
AnnotationSchedule = AnnotationPrefix + "schedule"
// AnnotationTimeout specifies the scan timeout
AnnotationTimeout = AnnotationPrefix + "timeout"
// AnnotationScannerImage overrides the scanner image
AnnotationScannerImage = AnnotationPrefix + "scanner-image"
// AnnotationExcludeTemplates specifies templates to exclude
AnnotationExcludeTemplates = AnnotationPrefix + "exclude-templates"
// AnnotationRateLimit specifies requests per second limit
AnnotationRateLimit = AnnotationPrefix + "rate-limit"
// AnnotationTags specifies template tags to include
AnnotationTags = AnnotationPrefix + "tags"
// AnnotationExcludeTags specifies template tags to exclude
AnnotationExcludeTags = AnnotationPrefix + "exclude-tags"
)
// ScanConfig holds parsed annotation configuration
type ScanConfig struct {
// Enabled indicates if scanning is enabled
Enabled bool
// Templates to use for scanning
Templates []string
// Severity filter
Severity []string
// Schedule for periodic scans (cron format)
Schedule string
// Timeout for the scan
Timeout *metav1.Duration
// ScannerImage overrides the default scanner image
ScannerImage string
// ExcludeTemplates to exclude from scanning
ExcludeTemplates []string
// RateLimit for requests per second
RateLimit int
// Tags to include
Tags []string
// ExcludeTags to exclude
ExcludeTags []string
}
// ParseAnnotations extracts scan configuration from resource annotations
func ParseAnnotations(annotations map[string]string) *ScanConfig {
config := &ScanConfig{
Enabled: true, // Default to enabled
}
if annotations == nil {
return config
}
// Parse enabled
if v, ok := annotations[AnnotationEnabled]; ok {
config.Enabled = strings.ToLower(v) == "true"
}
// Parse templates
if v, ok := annotations[AnnotationTemplates]; ok && v != "" {
config.Templates = splitAndTrim(v)
}
// Parse severity
if v, ok := annotations[AnnotationSeverity]; ok && v != "" {
config.Severity = splitAndTrim(v)
}
// Parse schedule
if v, ok := annotations[AnnotationSchedule]; ok {
config.Schedule = v
}
// Parse timeout
if v, ok := annotations[AnnotationTimeout]; ok {
if d, err := time.ParseDuration(v); err == nil {
config.Timeout = &metav1.Duration{Duration: d}
}
}
// Parse scanner image
if v, ok := annotations[AnnotationScannerImage]; ok {
config.ScannerImage = v
}
// Parse exclude templates
if v, ok := annotations[AnnotationExcludeTemplates]; ok && v != "" {
config.ExcludeTemplates = splitAndTrim(v)
}
// Parse rate limit
if v, ok := annotations[AnnotationRateLimit]; ok {
if n, err := strconv.Atoi(v); err == nil {
config.RateLimit = n
}
}
// Parse tags
if v, ok := annotations[AnnotationTags]; ok && v != "" {
config.Tags = splitAndTrim(v)
}
// Parse exclude tags
if v, ok := annotations[AnnotationExcludeTags]; ok && v != "" {
config.ExcludeTags = splitAndTrim(v)
}
return config
}
// ApplyToNucleiScanSpec applies the annotation config to a NucleiScan spec
func (c *ScanConfig) ApplyToNucleiScanSpec(spec *nucleiv1alpha1.NucleiScanSpec) {
// Apply templates if specified
if len(c.Templates) > 0 {
spec.Templates = c.Templates
}
// Apply severity if specified
if len(c.Severity) > 0 {
spec.Severity = c.Severity
}
// Apply schedule if specified
if c.Schedule != "" {
spec.Schedule = c.Schedule
}
// Apply scanner config if any scanner-specific settings are specified
if c.ScannerImage != "" || c.Timeout != nil {
if spec.ScannerConfig == nil {
spec.ScannerConfig = &nucleiv1alpha1.ScannerConfig{}
}
if c.ScannerImage != "" {
spec.ScannerConfig.Image = c.ScannerImage
}
if c.Timeout != nil {
spec.ScannerConfig.Timeout = c.Timeout
}
}
}
// IsEnabled returns true if scanning is enabled
func (c *ScanConfig) IsEnabled() bool {
return c.Enabled
}
// splitAndTrim splits a string by comma and trims whitespace from each element
func splitAndTrim(s string) []string {
parts := strings.Split(s, ",")
result := make([]string, 0, len(parts))
for _, p := range parts {
p = strings.TrimSpace(p)
if p != "" {
result = append(result, p)
}
}
return result
}

69
internal/controller/ingress_controller.go
View File

@@ -31,6 +31,7 @@ import (
logf "sigs.k8s.io/controller-runtime/pkg/log" logf "sigs.k8s.io/controller-runtime/pkg/log"
nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1" nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1"
"github.com/mortenolsen/nuclei-operator/internal/annotations"
) )
// IngressReconciler reconciles Ingress objects and creates NucleiScan resources // IngressReconciler reconciles Ingress objects and creates NucleiScan resources
@@ -59,12 +60,8 @@ func (r *IngressReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ct
return ctrl.Result{}, err return ctrl.Result{}, err
} }
// Extract target URLs from the Ingress // Parse annotations to get scan configuration
targets := extractURLsFromIngress(ingress) scanConfig := annotations.ParseAnnotations(ingress.Annotations)
if len(targets) == 0 {
log.Info("No targets extracted from Ingress, skipping NucleiScan creation")
return ctrl.Result{}, nil
}
// Define the NucleiScan name based on the Ingress name // Define the NucleiScan name based on the Ingress name
nucleiScanName := fmt.Sprintf("%s-scan", ingress.Name) nucleiScanName := fmt.Sprintf("%s-scan", ingress.Name)
@@ -81,14 +78,29 @@ func (r *IngressReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ct
return ctrl.Result{}, err return ctrl.Result{}, err
} }
// Check if scanning is disabled via annotations
if !scanConfig.IsEnabled() {
// Scanning disabled - delete existing NucleiScan if it exists
if err == nil {
log.Info("Scanning disabled via annotation, deleting existing NucleiScan", "nucleiScan", nucleiScanName)
if err := r.Delete(ctx, existingScan); err != nil && !apierrors.IsNotFound(err) {
log.Error(err, "Failed to delete NucleiScan")
return ctrl.Result{}, err
}
}
return ctrl.Result{}, nil
}
// Extract target URLs from the Ingress
targets := extractURLsFromIngress(ingress)
if len(targets) == 0 {
log.Info("No targets extracted from Ingress, skipping NucleiScan creation")
return ctrl.Result{}, nil
}
if apierrors.IsNotFound(err) { if apierrors.IsNotFound(err) {
// Create a new NucleiScan // Create a new NucleiScan
nucleiScan := &nucleiv1alpha1.NucleiScan{ spec := nucleiv1alpha1.NucleiScanSpec{
ObjectMeta: metav1.ObjectMeta{
Name: nucleiScanName,
Namespace: ingress.Namespace,
},
Spec: nucleiv1alpha1.NucleiScanSpec{
SourceRef: nucleiv1alpha1.SourceReference{ SourceRef: nucleiv1alpha1.SourceReference{
APIVersion: "networking.k8s.io/v1", APIVersion: "networking.k8s.io/v1",
Kind: "Ingress", Kind: "Ingress",
@@ -97,7 +109,17 @@ func (r *IngressReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ct
UID: string(ingress.UID), UID: string(ingress.UID),
}, },
Targets: targets, Targets: targets,
}
// Apply annotation configuration to the spec
scanConfig.ApplyToNucleiScanSpec(&spec)
nucleiScan := &nucleiv1alpha1.NucleiScan{
ObjectMeta: metav1.ObjectMeta{
Name: nucleiScanName,
Namespace: ingress.Namespace,
}, },
Spec: spec,
} }
// Set owner reference for garbage collection // Set owner reference for garbage collection
@@ -115,18 +137,31 @@ func (r *IngressReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ct
return ctrl.Result{}, nil return ctrl.Result{}, nil
} }
// NucleiScan exists - check if targets need to be updated // NucleiScan exists - check if it needs to be updated
needsUpdate := false
// Check if targets changed
if !reflect.DeepEqual(existingScan.Spec.Targets, targets) { if !reflect.DeepEqual(existingScan.Spec.Targets, targets) {
existingScan.Spec.Targets = targets existingScan.Spec.Targets = targets
// Also update the SourceRef UID in case it changed (e.g., Ingress was recreated) needsUpdate = true
existingScan.Spec.SourceRef.UID = string(ingress.UID) }
// Also update the SourceRef UID in case it changed (e.g., Ingress was recreated)
if existingScan.Spec.SourceRef.UID != string(ingress.UID) {
existingScan.Spec.SourceRef.UID = string(ingress.UID)
needsUpdate = true
}
// Apply annotation configuration
scanConfig.ApplyToNucleiScanSpec(&existingScan.Spec)
if needsUpdate {
if err := r.Update(ctx, existingScan); err != nil { if err := r.Update(ctx, existingScan); err != nil {
log.Error(err, "Failed to update NucleiScan targets") log.Error(err, "Failed to update NucleiScan")
return ctrl.Result{}, err return ctrl.Result{}, err
} }
log.Info("Updated NucleiScan targets for Ingress", "nucleiScan", nucleiScanName, "targets", targets) log.Info("Updated NucleiScan for Ingress", "nucleiScan", nucleiScanName, "targets", targets)
} }
return ctrl.Result{}, nil return ctrl.Result{}, nil

414
internal/controller/nucleiscan_controller.go
View File

@@ -23,16 +23,20 @@ import (
"os" "os"
"time" "time"
batchv1 "k8s.io/api/batch/v1"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/meta" "k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime" "k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/tools/record"
ctrl "sigs.k8s.io/controller-runtime" ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client" "sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil" "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
logf "sigs.k8s.io/controller-runtime/pkg/log" logf "sigs.k8s.io/controller-runtime/pkg/log"
nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1" nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1"
"github.com/mortenolsen/nuclei-operator/internal/scanner" "github.com/mortenolsen/nuclei-operator/internal/jobmanager"
) )
const ( const (
@@ -74,66 +78,78 @@ const (
ReasonScanSuspended = "ScanSuspended" ReasonScanSuspended = "ScanSuspended"
) )
// BackoffConfig holds configuration for exponential backoff // ReconcilerConfig holds configuration for the NucleiScanReconciler
type BackoffConfig struct { type ReconcilerConfig struct {
Initial time.Duration RescanAge time.Duration
Max time.Duration BackoffInitial time.Duration
Multiplier float64 BackoffMax time.Duration
BackoffMultiplier float64
}
// DefaultReconcilerConfig returns a ReconcilerConfig with default values
func DefaultReconcilerConfig() ReconcilerConfig {
config := ReconcilerConfig{
RescanAge: defaultRescanAge,
BackoffInitial: defaultBackoffInitial,
BackoffMax: defaultBackoffMax,
BackoffMultiplier: defaultBackoffMultiplier,
}
// Override from environment variables
if envVal := os.Getenv(envRescanAge); envVal != "" {
if parsed, err := time.ParseDuration(envVal); err == nil {
config.RescanAge = parsed
}
}
if envVal := os.Getenv(envBackoffInitial); envVal != "" {
if parsed, err := time.ParseDuration(envVal); err == nil {
config.BackoffInitial = parsed
}
}
if envVal := os.Getenv(envBackoffMax); envVal != "" {
if parsed, err := time.ParseDuration(envVal); err == nil {
config.BackoffMax = parsed
}
}
if envVal := os.Getenv(envBackoffMultiplier); envVal != "" {
if parsed, err := parseFloat(envVal); err == nil && parsed > 0 {
config.BackoffMultiplier = parsed
}
}
return config
} }
// NucleiScanReconciler reconciles a NucleiScan object // NucleiScanReconciler reconciles a NucleiScan object
type NucleiScanReconciler struct { type NucleiScanReconciler struct {
client.Client client.Client
Scheme *runtime.Scheme Scheme *runtime.Scheme
Scanner scanner.Scanner Recorder record.EventRecorder
RescanAge time.Duration JobManager *jobmanager.JobManager
Config ReconcilerConfig
HTTPClient *http.Client HTTPClient *http.Client
Backoff BackoffConfig
}
// NewNucleiScanReconciler creates a new NucleiScanReconciler with default settings
func NewNucleiScanReconciler(c client.Client, scheme *runtime.Scheme, s scanner.Scanner) *NucleiScanReconciler {
rescanAge := defaultRescanAge
if envVal := os.Getenv(envRescanAge); envVal != "" {
if parsed, err := time.ParseDuration(envVal); err == nil {
rescanAge = parsed
}
}
backoffInitial := defaultBackoffInitial
if envVal := os.Getenv(envBackoffInitial); envVal != "" {
if parsed, err := time.ParseDuration(envVal); err == nil {
backoffInitial = parsed
}
}
backoffMax := defaultBackoffMax
if envVal := os.Getenv(envBackoffMax); envVal != "" {
if parsed, err := time.ParseDuration(envVal); err == nil {
backoffMax = parsed
}
}
backoffMultiplier := defaultBackoffMultiplier
if envVal := os.Getenv(envBackoffMultiplier); envVal != "" {
if parsed, err := parseFloat(envVal); err == nil && parsed > 0 {
backoffMultiplier = parsed
}
} }
// NewNucleiScanReconciler creates a new NucleiScanReconciler with the given configuration
func NewNucleiScanReconciler(
c client.Client,
scheme *runtime.Scheme,
recorder record.EventRecorder,
jobManager *jobmanager.JobManager,
config ReconcilerConfig,
) *NucleiScanReconciler {
return &NucleiScanReconciler{ return &NucleiScanReconciler{
Client: c, Client: c,
Scheme: scheme, Scheme: scheme,
Scanner: s, Recorder: recorder,
RescanAge: rescanAge, JobManager: jobManager,
Config: config,
HTTPClient: &http.Client{ HTTPClient: &http.Client{
Timeout: 10 * time.Second, Timeout: 10 * time.Second,
}, },
Backoff: BackoffConfig{
Initial: backoffInitial,
Max: backoffMax,
Multiplier: backoffMultiplier,
},
} }
} }
@@ -147,15 +163,15 @@ func parseFloat(s string) (float64, error) {
// calculateBackoff calculates the next backoff duration based on retry count // calculateBackoff calculates the next backoff duration based on retry count
func (r *NucleiScanReconciler) calculateBackoff(retryCount int) time.Duration { func (r *NucleiScanReconciler) calculateBackoff(retryCount int) time.Duration {
if retryCount <= 0 { if retryCount <= 0 {
return r.Backoff.Initial return r.Config.BackoffInitial
} }
// Calculate exponential backoff: initial * multiplier^retryCount // Calculate exponential backoff: initial * multiplier^retryCount
backoff := float64(r.Backoff.Initial) backoff := float64(r.Config.BackoffInitial)
for i := 0; i < retryCount; i++ { for i := 0; i < retryCount; i++ {
backoff *= r.Backoff.Multiplier backoff *= r.Config.BackoffMultiplier
if backoff > float64(r.Backoff.Max) { if backoff > float64(r.Config.BackoffMax) {
return r.Backoff.Max return r.Config.BackoffMax
} }
} }
@@ -166,6 +182,8 @@ func (r *NucleiScanReconciler) calculateBackoff(retryCount int) time.Duration {
// +kubebuilder:rbac:groups=nuclei.homelab.mortenolsen.pro,resources=nucleiscans/status,verbs=get;update;patch // +kubebuilder:rbac:groups=nuclei.homelab.mortenolsen.pro,resources=nucleiscans/status,verbs=get;update;patch
// +kubebuilder:rbac:groups=nuclei.homelab.mortenolsen.pro,resources=nucleiscans/finalizers,verbs=update // +kubebuilder:rbac:groups=nuclei.homelab.mortenolsen.pro,resources=nucleiscans/finalizers,verbs=update
// +kubebuilder:rbac:groups="",resources=events,verbs=create;patch // +kubebuilder:rbac:groups="",resources=events,verbs=create;patch
// +kubebuilder:rbac:groups=batch,resources=jobs,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups="",resources=pods,verbs=get;list;watch
// Reconcile is part of the main kubernetes reconciliation loop which aims to // Reconcile is part of the main kubernetes reconciliation loop which aims to
// move the current state of the cluster closer to the desired state. // move the current state of the cluster closer to the desired state.
@@ -215,15 +233,7 @@ func (r *NucleiScanReconciler) Reconcile(ctx context.Context, req ctrl.Request)
case nucleiv1alpha1.ScanPhasePending: case nucleiv1alpha1.ScanPhasePending:
return r.handlePendingPhase(ctx, nucleiScan) return r.handlePendingPhase(ctx, nucleiScan)
case nucleiv1alpha1.ScanPhaseRunning: case nucleiv1alpha1.ScanPhaseRunning:
// Running phase on startup means the scan was interrupted (operator restart) return r.handleRunningPhase(ctx, nucleiScan)
// Reset to Pending to re-run the scan
log.Info("Found stale Running scan, resetting to Pending (operator likely restarted)")
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending
nucleiScan.Status.LastError = "Scan was interrupted due to operator restart, re-queuing"
if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err
}
return ctrl.Result{Requeue: true}, nil
case nucleiv1alpha1.ScanPhaseCompleted: case nucleiv1alpha1.ScanPhaseCompleted:
return r.handleCompletedPhase(ctx, nucleiScan) return r.handleCompletedPhase(ctx, nucleiScan)
case nucleiv1alpha1.ScanPhaseFailed: case nucleiv1alpha1.ScanPhaseFailed:
@@ -245,8 +255,15 @@ func (r *NucleiScanReconciler) handleDeletion(ctx context.Context, nucleiScan *n
if controllerutil.ContainsFinalizer(nucleiScan, finalizerName) { if controllerutil.ContainsFinalizer(nucleiScan, finalizerName) {
log.Info("Handling deletion, performing cleanup", "name", nucleiScan.Name, "namespace", nucleiScan.Namespace) log.Info("Handling deletion, performing cleanup", "name", nucleiScan.Name, "namespace", nucleiScan.Namespace)
// Perform any cleanup here (e.g., cancel running scans) // Clean up any running scanner job
// In our synchronous implementation, there's nothing to clean up if nucleiScan.Status.JobRef != nil {
log.Info("Deleting scanner job", "job", nucleiScan.Status.JobRef.Name)
if err := r.JobManager.DeleteJob(ctx, nucleiScan.Status.JobRef.Name, nucleiScan.Namespace); err != nil {
if !apierrors.IsNotFound(err) {
log.Error(err, "Failed to delete scanner job", "job", nucleiScan.Status.JobRef.Name)
}
}
}
// Remove finalizer // Remove finalizer
log.Info("Removing finalizer", "finalizer", finalizerName) log.Info("Removing finalizer", "finalizer", finalizerName)
@@ -261,19 +278,89 @@ func (r *NucleiScanReconciler) handleDeletion(ctx context.Context, nucleiScan *n
return ctrl.Result{}, nil return ctrl.Result{}, nil
} }
// handlePendingPhase handles the Pending phase - starts a new scan // handlePendingPhase handles the Pending phase - creates a scanner job
func (r *NucleiScanReconciler) handlePendingPhase(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan) (ctrl.Result, error) { func (r *NucleiScanReconciler) handlePendingPhase(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan) (ctrl.Result, error) {
log := logf.FromContext(ctx) logger := logf.FromContext(ctx)
log.Info("Preparing to scan", "targets", len(nucleiScan.Spec.Targets)) logger.Info("Preparing to scan", "targets", len(nucleiScan.Spec.Targets))
// Check if we're at capacity
atCapacity, err := r.JobManager.AtCapacity(ctx)
if err != nil {
logger.Error(err, "Failed to check job capacity")
return ctrl.Result{RequeueAfter: 30 * time.Second}, nil
}
if atCapacity {
logger.Info("At maximum concurrent scans, requeuing")
r.Recorder.Event(nucleiScan, corev1.EventTypeNormal, "AtCapacity",
"Maximum concurrent scans reached, waiting for capacity")
return ctrl.Result{RequeueAfter: 30 * time.Second}, nil
}
// Check if at least one target is available before scanning // Check if at least one target is available before scanning
availableTargets, unavailableTargets := r.checkTargetsAvailability(ctx, nucleiScan.Spec.Targets) availableTargets, unavailableTargets := r.checkTargetsAvailability(ctx, nucleiScan.Spec.Targets)
if len(availableTargets) == 0 { if len(availableTargets) == 0 {
return r.handleTargetsUnavailable(ctx, nucleiScan, unavailableTargets)
}
// Reset retry count since targets are now available
if nucleiScan.Status.RetryCount > 0 {
logger.Info("Targets now available, resetting retry count", "previousRetries", nucleiScan.Status.RetryCount)
nucleiScan.Status.RetryCount = 0
nucleiScan.Status.LastRetryTime = nil
}
logger.Info("Creating scanner job", "availableTargets", len(availableTargets), "unavailableTargets", len(unavailableTargets))
// Create the scanner job
job, err := r.JobManager.CreateScanJob(ctx, nucleiScan)
if err != nil {
logger.Error(err, "Failed to create scanner job")
r.Recorder.Event(nucleiScan, corev1.EventTypeWarning, "JobCreationFailed", err.Error())
return ctrl.Result{RequeueAfter: 30 * time.Second}, nil
}
// Update status to Running with job reference
now := metav1.Now()
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhaseRunning
nucleiScan.Status.JobRef = &nucleiv1alpha1.JobReference{
Name: job.Name,
UID: string(job.UID),
StartTime: &now,
}
nucleiScan.Status.LastScanTime = &now
nucleiScan.Status.LastError = ""
nucleiScan.Status.ObservedGeneration = nucleiScan.Generation
// Set condition
meta.SetStatusCondition(&nucleiScan.Status.Conditions, metav1.Condition{
Type: ConditionTypeScanActive,
Status: metav1.ConditionTrue,
Reason: ReasonScanRunning,
Message: fmt.Sprintf("Scanner job %s created for %d targets", job.Name, len(nucleiScan.Spec.Targets)),
LastTransitionTime: now,
})
if err := r.Status().Update(ctx, nucleiScan); err != nil {
logger.Error(err, "Failed to update status")
return ctrl.Result{}, err
}
r.Recorder.Event(nucleiScan, corev1.EventTypeNormal, "ScanJobCreated",
fmt.Sprintf("Created scanner job %s", job.Name))
// Requeue to monitor job status
return ctrl.Result{RequeueAfter: 15 * time.Second}, nil
}
// handleTargetsUnavailable handles the case when no targets are available
func (r *NucleiScanReconciler) handleTargetsUnavailable(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan, unavailableTargets []string) (ctrl.Result, error) {
logger := logf.FromContext(ctx)
// Calculate backoff based on retry count // Calculate backoff based on retry count
retryCount := nucleiScan.Status.RetryCount retryCount := nucleiScan.Status.RetryCount
backoffDuration := r.calculateBackoff(retryCount) backoffDuration := r.calculateBackoff(retryCount)
log.Info("No targets are available yet, waiting with backoff...", logger.Info("No targets are available yet, waiting with backoff...",
"unavailable", len(unavailableTargets), "unavailable", len(unavailableTargets),
"retryCount", retryCount, "retryCount", retryCount,
"backoffDuration", backoffDuration) "backoffDuration", backoffDuration)
@@ -299,51 +386,100 @@ func (r *NucleiScanReconciler) handlePendingPhase(ctx context.Context, nucleiSca
return ctrl.Result{RequeueAfter: backoffDuration}, nil return ctrl.Result{RequeueAfter: backoffDuration}, nil
} }
// Reset retry count since targets are now available // handleRunningPhase handles the Running phase - monitors the scanner job
if nucleiScan.Status.RetryCount > 0 { func (r *NucleiScanReconciler) handleRunningPhase(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan) (ctrl.Result, error) {
log.Info("Targets now available, resetting retry count", "previousRetries", nucleiScan.Status.RetryCount) logger := logf.FromContext(ctx)
nucleiScan.Status.RetryCount = 0
nucleiScan.Status.LastRetryTime = nil // Check if we have a job reference
if nucleiScan.Status.JobRef == nil {
logger.Info("No job reference found, resetting to Pending")
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending
nucleiScan.Status.LastError = "No job reference found, re-queuing scan"
if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err
}
return ctrl.Result{Requeue: true}, nil
} }
log.Info("Starting scan", "availableTargets", len(availableTargets), "unavailableTargets", len(unavailableTargets)) // Get the job
job, err := r.JobManager.GetJob(ctx, nucleiScan.Status.JobRef.Name, nucleiScan.Namespace)
if err != nil {
if apierrors.IsNotFound(err) {
logger.Info("Scanner job not found, resetting to Pending")
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending
nucleiScan.Status.LastError = "Scanner job not found, re-queuing scan"
nucleiScan.Status.JobRef = nil
if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err
}
return ctrl.Result{Requeue: true}, nil
}
return ctrl.Result{}, err
}
// Update status to Running // Update pod name if available
if nucleiScan.Status.JobRef.PodName == "" {
podName, _ := r.JobManager.GetJobPodName(ctx, job)
if podName != "" {
nucleiScan.Status.JobRef.PodName = podName
if err := r.Status().Update(ctx, nucleiScan); err != nil {
logger.Error(err, "Failed to update pod name")
}
}
}
// Check job status - the scanner pod updates the NucleiScan status directly
// We just need to detect completion/failure for events
if r.JobManager.IsJobSuccessful(job) {
logger.Info("Scanner job completed successfully")
r.Recorder.Event(nucleiScan, corev1.EventTypeNormal, "ScanCompleted",
fmt.Sprintf("Scan completed with %d findings", len(nucleiScan.Status.Findings)))
// Status is already updated by the scanner pod
// Just schedule next scan if needed
return r.scheduleNextScan(ctx, nucleiScan)
}
if r.JobManager.IsJobFailed(job) {
reason := r.JobManager.GetJobFailureReason(job)
logger.Info("Scanner job failed", "reason", reason)
// Update status if not already updated by scanner
if nucleiScan.Status.Phase != nucleiv1alpha1.ScanPhaseFailed {
now := metav1.Now() now := metav1.Now()
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhaseRunning nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhaseFailed
nucleiScan.Status.LastScanTime = &now nucleiScan.Status.LastError = reason
nucleiScan.Status.LastError = "" nucleiScan.Status.CompletionTime = &now
nucleiScan.Status.ObservedGeneration = nucleiScan.Generation
// Set condition // Set conditions
meta.SetStatusCondition(&nucleiScan.Status.Conditions, metav1.Condition{ meta.SetStatusCondition(&nucleiScan.Status.Conditions, metav1.Condition{
Type: ConditionTypeScanActive, Type: ConditionTypeScanActive,
Status: metav1.ConditionTrue, Status: metav1.ConditionFalse,
Reason: ReasonScanRunning, Reason: ReasonScanFailed,
Message: fmt.Sprintf("Scan is in progress (%d targets)", len(availableTargets)), Message: reason,
LastTransitionTime: now,
})
meta.SetStatusCondition(&nucleiScan.Status.Conditions, metav1.Condition{
Type: ConditionTypeReady,
Status: metav1.ConditionFalse,
Reason: ReasonScanFailed,
Message: reason,
LastTransitionTime: now, LastTransitionTime: now,
}) })
if err := r.Status().Update(ctx, nucleiScan); err != nil { if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err return ctrl.Result{}, err
} }
// Build scan options
options := scanner.ScanOptions{
Templates: nucleiScan.Spec.Templates,
Severity: nucleiScan.Spec.Severity,
Timeout: 30 * time.Minute, // Default timeout
} }
// Execute the scan with available targets only r.Recorder.Event(nucleiScan, corev1.EventTypeWarning, "ScanFailed", reason)
result, err := r.Scanner.Scan(ctx, availableTargets, options) return ctrl.Result{}, nil
if err != nil {
log.Error(err, "Scan failed")
return r.handleScanError(ctx, nucleiScan, err)
} }
// Update status with results // Job still running, requeue to check again
return r.handleScanSuccess(ctx, nucleiScan, result) logger.V(1).Info("Scanner job still running", "job", job.Name)
return ctrl.Result{RequeueAfter: 15 * time.Second}, nil
} }
// checkTargetsAvailability checks which targets are reachable // checkTargetsAvailability checks which targets are reachable
@@ -373,80 +509,6 @@ func (r *NucleiScanReconciler) checkTargetsAvailability(ctx context.Context, tar
return available, unavailable return available, unavailable
} }
// handleScanSuccess updates the status after a successful scan
func (r *NucleiScanReconciler) handleScanSuccess(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan, result *scanner.ScanResult) (ctrl.Result, error) {
log := logf.FromContext(ctx)
log.Info("Scan completed successfully", "findings", len(result.Findings), "duration", result.Duration)
now := metav1.Now()
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhaseCompleted
nucleiScan.Status.CompletionTime = &now
nucleiScan.Status.Findings = result.Findings
nucleiScan.Status.Summary = &result.Summary
nucleiScan.Status.LastError = ""
// Set conditions
meta.SetStatusCondition(&nucleiScan.Status.Conditions, metav1.Condition{
Type: ConditionTypeScanActive,
Status: metav1.ConditionFalse,
Reason: ReasonScanCompleted,
Message: "Scan completed successfully",
LastTransitionTime: now,
})
message := fmt.Sprintf("Scan completed with %d findings", len(result.Findings))
meta.SetStatusCondition(&nucleiScan.Status.Conditions, metav1.Condition{
Type: ConditionTypeReady,
Status: metav1.ConditionTrue,
Reason: ReasonScanCompleted,
Message: message,
LastTransitionTime: now,
})
if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err
}
// If there's a schedule, calculate next scan time
if nucleiScan.Spec.Schedule != "" {
return r.scheduleNextScan(ctx, nucleiScan)
}
return ctrl.Result{}, nil
}
// handleScanError updates the status after a failed scan
func (r *NucleiScanReconciler) handleScanError(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan, scanErr error) (ctrl.Result, error) {
now := metav1.Now()
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhaseFailed
nucleiScan.Status.CompletionTime = &now
nucleiScan.Status.LastError = scanErr.Error()
// Set conditions
meta.SetStatusCondition(&nucleiScan.Status.Conditions, metav1.Condition{
Type: ConditionTypeScanActive,
Status: metav1.ConditionFalse,
Reason: ReasonScanFailed,
Message: scanErr.Error(),
LastTransitionTime: now,
})
meta.SetStatusCondition(&nucleiScan.Status.Conditions, metav1.Condition{
Type: ConditionTypeReady,
Status: metav1.ConditionFalse,
Reason: ReasonScanFailed,
Message: scanErr.Error(),
LastTransitionTime: now,
})
if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err
}
// Requeue with backoff for retry
return ctrl.Result{RequeueAfter: defaultErrorRequeueAfter}, nil
}
// handleCompletedPhase handles the Completed phase - checks for scheduled rescans // handleCompletedPhase handles the Completed phase - checks for scheduled rescans
func (r *NucleiScanReconciler) handleCompletedPhase(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan) (ctrl.Result, error) { func (r *NucleiScanReconciler) handleCompletedPhase(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan) (ctrl.Result, error) {
log := logf.FromContext(ctx) log := logf.FromContext(ctx)
@@ -455,6 +517,7 @@ func (r *NucleiScanReconciler) handleCompletedPhase(ctx context.Context, nucleiS
if nucleiScan.Generation != nucleiScan.Status.ObservedGeneration { if nucleiScan.Generation != nucleiScan.Status.ObservedGeneration {
log.Info("Spec changed, triggering new scan") log.Info("Spec changed, triggering new scan")
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending
nucleiScan.Status.JobRef = nil // Clear old job reference
if err := r.Status().Update(ctx, nucleiScan); err != nil { if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err return ctrl.Result{}, err
} }
@@ -469,9 +532,10 @@ func (r *NucleiScanReconciler) handleCompletedPhase(ctx context.Context, nucleiS
// Check if scan results are stale (older than RescanAge) // Check if scan results are stale (older than RescanAge)
if nucleiScan.Status.CompletionTime != nil { if nucleiScan.Status.CompletionTime != nil {
age := time.Since(nucleiScan.Status.CompletionTime.Time) age := time.Since(nucleiScan.Status.CompletionTime.Time)
if age > r.RescanAge { if age > r.Config.RescanAge {
log.Info("Scan results are stale, triggering rescan", "age", age, "maxAge", r.RescanAge) log.Info("Scan results are stale, triggering rescan", "age", age, "maxAge", r.Config.RescanAge)
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending
nucleiScan.Status.JobRef = nil // Clear old job reference
nucleiScan.Status.LastError = fmt.Sprintf("Automatic rescan triggered (results were %v old)", age.Round(time.Hour)) nucleiScan.Status.LastError = fmt.Sprintf("Automatic rescan triggered (results were %v old)", age.Round(time.Hour))
if err := r.Status().Update(ctx, nucleiScan); err != nil { if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err return ctrl.Result{}, err
@@ -480,7 +544,7 @@ func (r *NucleiScanReconciler) handleCompletedPhase(ctx context.Context, nucleiS
} }
// Schedule a requeue for when the results will become stale // Schedule a requeue for when the results will become stale
timeUntilStale := r.RescanAge - age timeUntilStale := r.Config.RescanAge - age
log.V(1).Info("Scan results still fresh, will check again later", "timeUntilStale", timeUntilStale) log.V(1).Info("Scan results still fresh, will check again later", "timeUntilStale", timeUntilStale)
return ctrl.Result{RequeueAfter: timeUntilStale}, nil return ctrl.Result{RequeueAfter: timeUntilStale}, nil
} }
@@ -496,6 +560,7 @@ func (r *NucleiScanReconciler) handleFailedPhase(ctx context.Context, nucleiScan
if nucleiScan.Generation != nucleiScan.Status.ObservedGeneration { if nucleiScan.Generation != nucleiScan.Status.ObservedGeneration {
log.Info("Spec changed, triggering new scan") log.Info("Spec changed, triggering new scan")
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending
nucleiScan.Status.JobRef = nil // Clear old job reference
if err := r.Status().Update(ctx, nucleiScan); err != nil { if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err return ctrl.Result{}, err
} }
@@ -512,6 +577,11 @@ func (r *NucleiScanReconciler) handleFailedPhase(ctx context.Context, nucleiScan
func (r *NucleiScanReconciler) scheduleNextScan(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan) (ctrl.Result, error) { func (r *NucleiScanReconciler) scheduleNextScan(ctx context.Context, nucleiScan *nucleiv1alpha1.NucleiScan) (ctrl.Result, error) {
log := logf.FromContext(ctx) log := logf.FromContext(ctx)
// If there's no schedule, nothing to do
if nucleiScan.Spec.Schedule == "" {
return ctrl.Result{}, nil
}
// Parse cron schedule // Parse cron schedule
nextTime, err := getNextScheduleTime(nucleiScan.Spec.Schedule, time.Now()) nextTime, err := getNextScheduleTime(nucleiScan.Spec.Schedule, time.Now())
if err != nil { if err != nil {
@@ -550,6 +620,7 @@ func (r *NucleiScanReconciler) checkScheduledScan(ctx context.Context, nucleiSca
log.Info("Scheduled scan time reached, triggering scan") log.Info("Scheduled scan time reached, triggering scan")
nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending nucleiScan.Status.Phase = nucleiv1alpha1.ScanPhasePending
nucleiScan.Status.NextScheduledTime = nil nucleiScan.Status.NextScheduledTime = nil
nucleiScan.Status.JobRef = nil // Clear old job reference
if err := r.Status().Update(ctx, nucleiScan); err != nil { if err := r.Status().Update(ctx, nucleiScan); err != nil {
return ctrl.Result{}, err return ctrl.Result{}, err
} }
@@ -602,6 +673,7 @@ func getNextScheduleTime(schedule string, from time.Time) (time.Time, error) {
func (r *NucleiScanReconciler) SetupWithManager(mgr ctrl.Manager) error { func (r *NucleiScanReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr). return ctrl.NewControllerManagedBy(mgr).
For(&nucleiv1alpha1.NucleiScan{}). For(&nucleiv1alpha1.NucleiScan{}).
Owns(&batchv1.Job{}). // Watch Jobs owned by NucleiScan
Named("nucleiscan"). Named("nucleiscan").
Complete(r) Complete(r)
} }

69
internal/controller/virtualservice_controller.go
View File

@@ -33,6 +33,7 @@ import (
istionetworkingv1beta1 "istio.io/client-go/pkg/apis/networking/v1beta1" istionetworkingv1beta1 "istio.io/client-go/pkg/apis/networking/v1beta1"
nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1" nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1"
"github.com/mortenolsen/nuclei-operator/internal/annotations"
) )
// VirtualServiceReconciler reconciles VirtualService objects and creates NucleiScan resources // VirtualServiceReconciler reconciles VirtualService objects and creates NucleiScan resources
@@ -61,12 +62,8 @@ func (r *VirtualServiceReconciler) Reconcile(ctx context.Context, req ctrl.Reque
return ctrl.Result{}, err return ctrl.Result{}, err
} }
// Extract target URLs from the VirtualService // Parse annotations to get scan configuration
targets := extractURLsFromVirtualService(virtualService) scanConfig := annotations.ParseAnnotations(virtualService.Annotations)
if len(targets) == 0 {
log.Info("No targets extracted from VirtualService, skipping NucleiScan creation")
return ctrl.Result{}, nil
}
// Define the NucleiScan name based on the VirtualService name // Define the NucleiScan name based on the VirtualService name
nucleiScanName := fmt.Sprintf("%s-scan", virtualService.Name) nucleiScanName := fmt.Sprintf("%s-scan", virtualService.Name)
@@ -83,14 +80,29 @@ func (r *VirtualServiceReconciler) Reconcile(ctx context.Context, req ctrl.Reque
return ctrl.Result{}, err return ctrl.Result{}, err
} }
// Check if scanning is disabled via annotations
if !scanConfig.IsEnabled() {
// Scanning disabled - delete existing NucleiScan if it exists
if err == nil {
log.Info("Scanning disabled via annotation, deleting existing NucleiScan", "nucleiScan", nucleiScanName)
if err := r.Delete(ctx, existingScan); err != nil && !apierrors.IsNotFound(err) {
log.Error(err, "Failed to delete NucleiScan")
return ctrl.Result{}, err
}
}
return ctrl.Result{}, nil
}
// Extract target URLs from the VirtualService
targets := extractURLsFromVirtualService(virtualService)
if len(targets) == 0 {
log.Info("No targets extracted from VirtualService, skipping NucleiScan creation")
return ctrl.Result{}, nil
}
if apierrors.IsNotFound(err) { if apierrors.IsNotFound(err) {
// Create a new NucleiScan // Create a new NucleiScan
nucleiScan := &nucleiv1alpha1.NucleiScan{ spec := nucleiv1alpha1.NucleiScanSpec{
ObjectMeta: metav1.ObjectMeta{
Name: nucleiScanName,
Namespace: virtualService.Namespace,
},
Spec: nucleiv1alpha1.NucleiScanSpec{
SourceRef: nucleiv1alpha1.SourceReference{ SourceRef: nucleiv1alpha1.SourceReference{
APIVersion: "networking.istio.io/v1beta1", APIVersion: "networking.istio.io/v1beta1",
Kind: "VirtualService", Kind: "VirtualService",
@@ -99,7 +111,17 @@ func (r *VirtualServiceReconciler) Reconcile(ctx context.Context, req ctrl.Reque
UID: string(virtualService.UID), UID: string(virtualService.UID),
}, },
Targets: targets, Targets: targets,
}
// Apply annotation configuration to the spec
scanConfig.ApplyToNucleiScanSpec(&spec)
nucleiScan := &nucleiv1alpha1.NucleiScan{
ObjectMeta: metav1.ObjectMeta{
Name: nucleiScanName,
Namespace: virtualService.Namespace,
}, },
Spec: spec,
} }
// Set owner reference for garbage collection // Set owner reference for garbage collection
@@ -117,18 +139,31 @@ func (r *VirtualServiceReconciler) Reconcile(ctx context.Context, req ctrl.Reque
return ctrl.Result{}, nil return ctrl.Result{}, nil
} }
// NucleiScan exists - check if targets need to be updated // NucleiScan exists - check if it needs to be updated
needsUpdate := false
// Check if targets changed
if !reflect.DeepEqual(existingScan.Spec.Targets, targets) { if !reflect.DeepEqual(existingScan.Spec.Targets, targets) {
existingScan.Spec.Targets = targets existingScan.Spec.Targets = targets
// Also update the SourceRef UID in case it changed (e.g., VirtualService was recreated) needsUpdate = true
existingScan.Spec.SourceRef.UID = string(virtualService.UID) }
// Also update the SourceRef UID in case it changed (e.g., VirtualService was recreated)
if existingScan.Spec.SourceRef.UID != string(virtualService.UID) {
existingScan.Spec.SourceRef.UID = string(virtualService.UID)
needsUpdate = true
}
// Apply annotation configuration
scanConfig.ApplyToNucleiScanSpec(&existingScan.Spec)
if needsUpdate {
if err := r.Update(ctx, existingScan); err != nil { if err := r.Update(ctx, existingScan); err != nil {
log.Error(err, "Failed to update NucleiScan targets") log.Error(err, "Failed to update NucleiScan")
return ctrl.Result{}, err return ctrl.Result{}, err
} }
log.Info("Updated NucleiScan targets for VirtualService", "nucleiScan", nucleiScanName, "targets", targets) log.Info("Updated NucleiScan for VirtualService", "nucleiScan", nucleiScanName, "targets", targets)
} }
return ctrl.Result{}, nil return ctrl.Result{}, nil

427
internal/jobmanager/jobmanager.go Normal file
View File

@@ -0,0 +1,427 @@
/*
Copyright 2024.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package jobmanager
import (
"context"
"fmt"
"time"
batchv1 "k8s.io/api/batch/v1"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/utils/ptr"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
"sigs.k8s.io/controller-runtime/pkg/log"
nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1"
)
const (
// DefaultScannerImage is the default image used for scanner pods
DefaultScannerImage = "ghcr.io/morten-olsen/nuclei-operator:latest"
// DefaultTimeout is the default scan timeout
DefaultTimeout = 30 * time.Minute
// DefaultTTLAfterFinished is the default TTL for completed jobs
DefaultTTLAfterFinished = 3600 // 1 hour
// DefaultBackoffLimit is the default number of retries for failed jobs
DefaultBackoffLimit = 2
// LabelManagedBy is the label key for identifying managed resources
LabelManagedBy = "app.kubernetes.io/managed-by"
// LabelComponent is the label key for component identification
LabelComponent = "app.kubernetes.io/component"
// LabelScanName is the label key for the scan name
LabelScanName = "nuclei.homelab.mortenolsen.pro/scan-name"
// LabelScanNamespace is the label key for the scan namespace
LabelScanNamespace = "nuclei.homelab.mortenolsen.pro/scan-namespace"
)
// Config holds the configuration for the JobManager
type Config struct {
// ScannerImage is the default image to use for scanner pods
ScannerImage string
// DefaultTimeout is the default scan timeout
DefaultTimeout time.Duration
// TTLAfterFinished is the TTL for completed jobs in seconds
TTLAfterFinished int32
// BackoffLimit is the number of retries for failed jobs
BackoffLimit int32
// MaxConcurrent is the maximum number of concurrent scan jobs
MaxConcurrent int
// ServiceAccountName is the service account to use for scanner pods
ServiceAccountName string
// DefaultResources are the default resource requirements for scanner pods
DefaultResources corev1.ResourceRequirements
// DefaultTemplates are the default templates to use for scans
DefaultTemplates []string
// DefaultSeverity is the default severity filter
DefaultSeverity []string
}
// DefaultConfig returns a Config with default values
func DefaultConfig() Config {
return Config{
ScannerImage: DefaultScannerImage,
DefaultTimeout: DefaultTimeout,
TTLAfterFinished: DefaultTTLAfterFinished,
BackoffLimit: DefaultBackoffLimit,
MaxConcurrent: 5,
ServiceAccountName: "nuclei-scanner",
DefaultResources: corev1.ResourceRequirements{
Requests: corev1.ResourceList{
corev1.ResourceCPU: resource.MustParse("100m"),
corev1.ResourceMemory: resource.MustParse("256Mi"),
},
Limits: corev1.ResourceList{
corev1.ResourceCPU: resource.MustParse("1"),
corev1.ResourceMemory: resource.MustParse("1Gi"),
},
},
}
}
// JobManager manages scanner jobs for NucleiScan resources
type JobManager struct {
client.Client
Scheme *runtime.Scheme
Config Config
}
// NewJobManager creates a new JobManager with the given configuration
func NewJobManager(c client.Client, scheme *runtime.Scheme, config Config) *JobManager {
return &JobManager{
Client: c,
Scheme: scheme,
Config: config,
}
}
// CreateScanJob creates a new scanner job for the given NucleiScan
func (m *JobManager) CreateScanJob(ctx context.Context, scan *nucleiv1alpha1.NucleiScan) (*batchv1.Job, error) {
logger := log.FromContext(ctx)
job := m.buildJob(scan)
// Set owner reference so the job is garbage collected when the scan is deleted
if err := controllerutil.SetControllerReference(scan, job, m.Scheme); err != nil {
return nil, fmt.Errorf("failed to set controller reference: %w", err)
}
logger.Info("Creating scanner job",
"job", job.Name,
"namespace", job.Namespace,
"image", job.Spec.Template.Spec.Containers[0].Image,
"targets", len(scan.Spec.Targets))
if err := m.Create(ctx, job); err != nil {
return nil, fmt.Errorf("failed to create job: %w", err)
}
return job, nil
}
// GetJob retrieves a job by name and namespace
func (m *JobManager) GetJob(ctx context.Context, name, namespace string) (*batchv1.Job, error) {
job := &batchv1.Job{}
err := m.Get(ctx, types.NamespacedName{Name: name, Namespace: namespace}, job)
if err != nil {
return nil, err
}
return job, nil
}
// DeleteJob deletes a job by name and namespace
func (m *JobManager) DeleteJob(ctx context.Context, name, namespace string) error {
job := &batchv1.Job{
ObjectMeta: metav1.ObjectMeta{
Name: name,
Namespace: namespace,
},
}
return m.Delete(ctx, job, client.PropagationPolicy(metav1.DeletePropagationBackground))
}
// GetJobPodName returns the name of the pod created by the job
func (m *JobManager) GetJobPodName(ctx context.Context, job *batchv1.Job) (string, error) {
podList := &corev1.PodList{}
err := m.List(ctx, podList,
client.InNamespace(job.Namespace),
client.MatchingLabels{"job-name": job.Name})
if err != nil {
return "", err
}
if len(podList.Items) == 0 {
return "", nil
}
// Return the first pod (there should only be one for our jobs)
return podList.Items[0].Name, nil
}
// IsJobComplete returns true if the job has completed (successfully or failed)
func (m *JobManager) IsJobComplete(job *batchv1.Job) bool {
for _, condition := range job.Status.Conditions {
if (condition.Type == batchv1.JobComplete || condition.Type == batchv1.JobFailed) &&
condition.Status == corev1.ConditionTrue {
return true
}
}
return false
}
// IsJobSuccessful returns true if the job completed successfully
func (m *JobManager) IsJobSuccessful(job *batchv1.Job) bool {
for _, condition := range job.Status.Conditions {
if condition.Type == batchv1.JobComplete && condition.Status == corev1.ConditionTrue {
return true
}
}
return false
}
// IsJobFailed returns true if the job failed
func (m *JobManager) IsJobFailed(job *batchv1.Job) bool {
for _, condition := range job.Status.Conditions {
if condition.Type == batchv1.JobFailed && condition.Status == corev1.ConditionTrue {
return true
}
}
return false
}
// GetJobFailureReason returns the reason for job failure
func (m *JobManager) GetJobFailureReason(job *batchv1.Job) string {
for _, condition := range job.Status.Conditions {
if condition.Type == batchv1.JobFailed && condition.Status == corev1.ConditionTrue {
return condition.Message
}
}
return "Unknown failure reason"
}
// CountActiveJobs returns the number of currently active scan jobs
func (m *JobManager) CountActiveJobs(ctx context.Context) (int, error) {
jobList := &batchv1.JobList{}
err := m.List(ctx, jobList, client.MatchingLabels{
LabelManagedBy: "nuclei-operator",
LabelComponent: "scanner",
})
if err != nil {
return 0, err
}
count := 0
for _, job := range jobList.Items {
if job.Status.Active > 0 {
count++
}
}
return count, nil
}
// AtCapacity returns true if the maximum number of concurrent jobs has been reached
func (m *JobManager) AtCapacity(ctx context.Context) (bool, error) {
count, err := m.CountActiveJobs(ctx)
if err != nil {
return false, err
}
return count >= m.Config.MaxConcurrent, nil
}
// CleanupOrphanedJobs removes jobs that no longer have an associated NucleiScan
func (m *JobManager) CleanupOrphanedJobs(ctx context.Context) error {
logger := log.FromContext(ctx)
jobList := &batchv1.JobList{}
err := m.List(ctx, jobList, client.MatchingLabels{
LabelManagedBy: "nuclei-operator",
LabelComponent: "scanner",
})
if err != nil {
return err
}
for _, job := range jobList.Items {
// Check if owner reference exists and the owner still exists
ownerRef := metav1.GetControllerOf(&job)
if ownerRef == nil {
logger.Info("Deleting orphaned job without owner", "job", job.Name, "namespace", job.Namespace)
if err := m.DeleteJob(ctx, job.Name, job.Namespace); err != nil && !apierrors.IsNotFound(err) {
logger.Error(err, "Failed to delete orphaned job", "job", job.Name)
}
continue
}
// Check if the job is stuck (running longer than 2x the timeout)
if job.Status.StartTime != nil {
maxDuration := 2 * m.Config.DefaultTimeout
if time.Since(job.Status.StartTime.Time) > maxDuration && job.Status.Active > 0 {
logger.Info("Deleting stuck job", "job", job.Name, "namespace", job.Namespace,
"age", time.Since(job.Status.StartTime.Time))
if err := m.DeleteJob(ctx, job.Name, job.Namespace); err != nil && !apierrors.IsNotFound(err) {
logger.Error(err, "Failed to delete stuck job", "job", job.Name)
}
}
}
}
return nil
}
// buildJob creates a Job specification for the given NucleiScan
func (m *JobManager) buildJob(scan *nucleiv1alpha1.NucleiScan) *batchv1.Job {
// Generate a unique job name
jobName := fmt.Sprintf("nucleiscan-%s-%d", scan.Name, time.Now().Unix())
if len(jobName) > 63 {
jobName = jobName[:63]
}
// Determine the scanner image
image := m.Config.ScannerImage
if scan.Spec.ScannerConfig != nil && scan.Spec.ScannerConfig.Image != "" {
image = scan.Spec.ScannerConfig.Image
}
// Determine timeout
timeout := m.Config.DefaultTimeout
if scan.Spec.ScannerConfig != nil && scan.Spec.ScannerConfig.Timeout != nil {
timeout = scan.Spec.ScannerConfig.Timeout.Duration
}
activeDeadlineSeconds := int64(timeout.Seconds())
// Determine resources
resources := m.Config.DefaultResources
if scan.Spec.ScannerConfig != nil && scan.Spec.ScannerConfig.Resources != nil {
resources = *scan.Spec.ScannerConfig.Resources
}
// Build command arguments for scanner mode
args := []string{
"--mode=scanner",
fmt.Sprintf("--scan-name=%s", scan.Name),
fmt.Sprintf("--scan-namespace=%s", scan.Namespace),
}
// Build labels
labels := map[string]string{
LabelManagedBy: "nuclei-operator",
LabelComponent: "scanner",
LabelScanName: scan.Name,
LabelScanNamespace: scan.Namespace,
}
// Build node selector
var nodeSelector map[string]string
if scan.Spec.ScannerConfig != nil && scan.Spec.ScannerConfig.NodeSelector != nil {
nodeSelector = scan.Spec.ScannerConfig.NodeSelector
}
// Build tolerations
var tolerations []corev1.Toleration
if scan.Spec.ScannerConfig != nil && scan.Spec.ScannerConfig.Tolerations != nil {
tolerations = scan.Spec.ScannerConfig.Tolerations
}
job := &batchv1.Job{
ObjectMeta: metav1.ObjectMeta{
Name: jobName,
Namespace: scan.Namespace,
Labels: labels,
},
Spec: batchv1.JobSpec{
TTLSecondsAfterFinished: ptr.To(m.Config.TTLAfterFinished),
BackoffLimit: ptr.To(m.Config.BackoffLimit),
ActiveDeadlineSeconds: &activeDeadlineSeconds,
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: labels,
},
Spec: corev1.PodSpec{
RestartPolicy: corev1.RestartPolicyNever,
ServiceAccountName: m.Config.ServiceAccountName,
NodeSelector: nodeSelector,
Tolerations: tolerations,
SecurityContext: &corev1.PodSecurityContext{
RunAsNonRoot: ptr.To(true),
RunAsUser: ptr.To(int64(65532)),
RunAsGroup: ptr.To(int64(65532)),
FSGroup: ptr.To(int64(65532)),
SeccompProfile: &corev1.SeccompProfile{
Type: corev1.SeccompProfileTypeRuntimeDefault,
},
},
Containers: []corev1.Container{
{
Name: "scanner",
Image: image,
Args: args,
Resources: resources,
SecurityContext: &corev1.SecurityContext{
AllowPrivilegeEscalation: ptr.To(false),
ReadOnlyRootFilesystem: ptr.To(false), // Nuclei needs temp files
Capabilities: &corev1.Capabilities{
Drop: []corev1.Capability{"ALL"},
},
},
Env: []corev1.EnvVar{
{
Name: "POD_NAME",
ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{
FieldPath: "metadata.name",
},
},
},
{
Name: "POD_NAMESPACE",
ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{
FieldPath: "metadata.namespace",
},
},
},
},
},
},
},
},
},
}
return job
}

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internal/jobmanager/jobmanager_test.go Normal file
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/*
Copyright 2024.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package jobmanager
import (
"testing"
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1"
)
func TestBuildJob(t *testing.T) {
config := DefaultConfig()
manager := &JobManager{
Config: config,
}
scan := &nucleiv1alpha1.NucleiScan{
ObjectMeta: metav1.ObjectMeta{
Name: "test-scan",
Namespace: "default",
},
Spec: nucleiv1alpha1.NucleiScanSpec{
Targets: []string{"https://example.com"},
},
}
job := manager.buildJob(scan)
// Verify job name prefix
if len(job.Name) == 0 {
t.Error("Job name should not be empty")
}
// Verify namespace
if job.Namespace != "default" {
t.Errorf("Expected namespace 'default', got '%s'", job.Namespace)
}
// Verify labels
if job.Labels[LabelManagedBy] != "nuclei-operator" {
t.Error("Job should have managed-by label")
}
if job.Labels[LabelComponent] != "scanner" {
t.Error("Job should have component label")
}
// Verify container
if len(job.Spec.Template.Spec.Containers) != 1 {
t.Error("Job should have exactly one container")
}
container := job.Spec.Template.Spec.Containers[0]
if container.Image != config.ScannerImage {
t.Errorf("Expected image '%s', got '%s'", config.ScannerImage, container.Image)
}
// Verify security context
if job.Spec.Template.Spec.SecurityContext.RunAsNonRoot == nil || !*job.Spec.Template.Spec.SecurityContext.RunAsNonRoot {
t.Error("Pod should run as non-root")
}
}
func TestBuildJobWithCustomConfig(t *testing.T) {
config := DefaultConfig()
manager := &JobManager{
Config: config,
}
customImage := "custom/scanner:v1"
customTimeout := metav1.Duration{Duration: 45 * time.Minute}
scan := &nucleiv1alpha1.NucleiScan{
ObjectMeta: metav1.ObjectMeta{
Name: "test-scan",
Namespace: "default",
},
Spec: nucleiv1alpha1.NucleiScanSpec{
Targets: []string{"https://example.com"},
ScannerConfig: &nucleiv1alpha1.ScannerConfig{
Image: customImage,
Timeout: &customTimeout,
},
},
}
job := manager.buildJob(scan)
// Verify custom image
container := job.Spec.Template.Spec.Containers[0]
if container.Image != customImage {
t.Errorf("Expected custom image '%s', got '%s'", customImage, container.Image)
}
// Verify custom timeout
expectedDeadline := int64(45 * 60) // 45 minutes in seconds
if *job.Spec.ActiveDeadlineSeconds != expectedDeadline {
t.Errorf("Expected deadline %d, got %d", expectedDeadline, *job.Spec.ActiveDeadlineSeconds)
}
}

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/*
Copyright 2024.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package scanner
import (
"context"
"fmt"
"os"
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
"k8s.io/client-go/rest"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
nucleiv1alpha1 "github.com/mortenolsen/nuclei-operator/api/v1alpha1"
)
// RunnerConfig holds configuration for the scanner runner
type RunnerConfig struct {
// ScanName is the name of the NucleiScan to execute
ScanName string
// ScanNamespace is the namespace of the NucleiScan
ScanNamespace string
// NucleiBinaryPath is the path to the nuclei binary
NucleiBinaryPath string
// TemplatesPath is the path to nuclei templates
TemplatesPath string
}
// Runner executes a single scan and updates the NucleiScan status
type Runner struct {
config RunnerConfig
client client.Client
scanner Scanner
}
// NewRunner creates a new scanner runner
func NewRunner(config RunnerConfig) (*Runner, error) {
// Set up logging
log.SetLogger(zap.New(zap.UseDevMode(false)))
logger := log.Log.WithName("scanner-runner")
// Create scheme
scheme := runtime.NewScheme()
utilruntime.Must(clientgoscheme.AddToScheme(scheme))
utilruntime.Must(nucleiv1alpha1.AddToScheme(scheme))
// Get in-cluster config
restConfig, err := rest.InClusterConfig()
if err != nil {
return nil, fmt.Errorf("failed to get in-cluster config: %w", err)
}
// Create client
k8sClient, err := client.New(restConfig, client.Options{Scheme: scheme})
if err != nil {
return nil, fmt.Errorf("failed to create client: %w", err)
}
// Create scanner with configuration
scannerConfig := Config{
NucleiBinaryPath: config.NucleiBinaryPath,
TemplatesPath: config.TemplatesPath,
}
// Use defaults if not specified
if scannerConfig.NucleiBinaryPath == "" {
scannerConfig.NucleiBinaryPath = "nuclei"
}
nucleiScanner := NewNucleiScanner(scannerConfig)
logger.Info("Scanner runner initialized",
"scanName", config.ScanName,
"scanNamespace", config.ScanNamespace)
return &Runner{
config: config,
client: k8sClient,
scanner: nucleiScanner,
}, nil
}
// Run executes the scan and updates the NucleiScan status
func (r *Runner) Run(ctx context.Context) error {
logger := log.FromContext(ctx).WithName("scanner-runner")
// Fetch the NucleiScan
scan := &nucleiv1alpha1.NucleiScan{}
err := r.client.Get(ctx, types.NamespacedName{
Name: r.config.ScanName,
Namespace: r.config.ScanNamespace,
}, scan)
if err != nil {
return fmt.Errorf("failed to get NucleiScan: %w", err)
}
logger.Info("Starting scan",
"targets", len(scan.Spec.Targets),
"templates", scan.Spec.Templates,
"severity", scan.Spec.Severity)
// Update status to indicate scan has started
startTime := metav1.Now()
scan.Status.ScanStartTime = &startTime
if err := r.client.Status().Update(ctx, scan); err != nil {
logger.Error(err, "Failed to update scan start time")
// Continue anyway - this is not critical
}
// Build scan options
options := ScanOptions{
Templates: scan.Spec.Templates,
Severity: scan.Spec.Severity,
}
// Execute the scan
scanStartTime := time.Now()
result, err := r.scanner.Scan(ctx, scan.Spec.Targets, options)
scanDuration := time.Since(scanStartTime)
// Re-fetch the scan to avoid conflicts
if fetchErr := r.client.Get(ctx, types.NamespacedName{
Name: r.config.ScanName,
Namespace: r.config.ScanNamespace,
}, scan); fetchErr != nil {
return fmt.Errorf("failed to re-fetch NucleiScan: %w", fetchErr)
}
// Update status based on result
completionTime := metav1.Now()
scan.Status.CompletionTime = &completionTime
if err != nil {
logger.Error(err, "Scan failed")
scan.Status.Phase = nucleiv1alpha1.ScanPhaseFailed
scan.Status.LastError = err.Error()
} else {
logger.Info("Scan completed successfully",
"findings", len(result.Findings),
"duration", scanDuration)
scan.Status.Phase = nucleiv1alpha1.ScanPhaseCompleted
scan.Status.Findings = result.Findings
scan.Status.Summary = &nucleiv1alpha1.ScanSummary{
TotalFindings: len(result.Findings),
FindingsBySeverity: countFindingsBySeverity(result.Findings),
TargetsScanned: len(scan.Spec.Targets),
DurationSeconds: int64(scanDuration.Seconds()),
}
scan.Status.LastError = ""
}
// Update the status
if err := r.client.Status().Update(ctx, scan); err != nil {
return fmt.Errorf("failed to update NucleiScan status: %w", err)
}
logger.Info("Scan status updated",
"phase", scan.Status.Phase,
"findings", len(scan.Status.Findings))
return nil
}
// countFindingsBySeverity counts findings by severity level
func countFindingsBySeverity(findings []nucleiv1alpha1.Finding) map[string]int {
counts := make(map[string]int)
for _, f := range findings {
counts[f.Severity]++
}
return counts
}
// RunScannerMode is the entry point for scanner mode
func RunScannerMode(scanName, scanNamespace string) error {
// Get configuration from environment
config := RunnerConfig{
ScanName: scanName,
ScanNamespace: scanNamespace,
NucleiBinaryPath: os.Getenv("NUCLEI_BINARY_PATH"),
TemplatesPath: os.Getenv("NUCLEI_TEMPLATES_PATH"),
}
if config.ScanName == "" || config.ScanNamespace == "" {
return fmt.Errorf("scan name and namespace are required")
}
runner, err := NewRunner(config)
if err != nil {
return fmt.Errorf("failed to create runner: %w", err)
}
ctx := context.Background()
return runner.Run(ctx)
}