name: CI/CD Pipeline
on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main ]
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - name: Setup Node.js
      uses: actions/setup-node@v3
      with:
        node-version: '18'
        cache: 'npm'
    - run: npm ci
    - run: npm run lint
    - run: npm run test:coverage
    - name: Upload coverage
      uses: codecov/codecov-action@v3
build:
    needs: test
    runs-on: ubuntu-latest
    steps:
    - name: Build and push Docker image
      uses: docker/build-push-action@v4
      with:
        context: .
        push: true
        tags: dakar/app:${{ github.sha }}

groups:
- name: dakar_alerts
  rules:
  - alert: HighErrorRate
    expr: rate(http_requests_total{status=~"5.."}[5m]) / rate(http_requests_total[5m]) > 0.05
    for: 5m
    labels:
      severity: critical
    annotations:
      summary: "High error rate detected"
      description: "Error rate is {{ $value }}%"
- alert: HighLatency
expr: histogram_quantile(0.95, rate(http_request_duration_seconds_bucket[5m])) > 2
for: 5m
labels:
severity: warning
annotations:
summary: "High latency detected"
description: "95th percentile latency is {{ $value }}s"

apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: dakar-backend-hpa
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: dakar-backend
  minReplicas: 3
  maxReplicas: 50
  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 70
  - type: Resource
    resource:
      name: memory
      target:
        type: Utilization
        averageUtilization: 80
  - type: Pods
    pods:
      metric:
        name: http_requests_per_second
      target:
        type: AverageValue
        averageValue: "100"
  behavior:
    scaleDown:
      stabilizationWindowSeconds: 300
      policies:
      - type: Percent
        value: 10
        periodSeconds: 60