apiVersion: apps/v1
kind: Deployment
metadata:
  name: turash-backend
  namespace: turash
  labels:
    app: turash-backend
    component: backend
    version: v1
spec:
  replicas: 2
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
  selector:
    matchLabels:
      app: turash-backend
  template:
    metadata:
      labels:
        app: turash-backend
        component: backend
        version: v1
      annotations:
        prometheus.io/scrape: "true"
        prometheus.io/port: "8080"
        prometheus.io/path: "/metrics"
    spec:
      containers:
      - name: backend
        image: registry.bk.glpx.pro/turash/turash-backend:latest
        imagePullPolicy: Always
        ports:
        - name: http
          containerPort: 8080
          protocol: TCP
        envFrom:
        - configMapRef:
            name: turash-backend-config
        - secretRef:
            name: turash-backend-secret
        env:
        # Override PostgreSQL DSN with secret values
        - name: POSTGRES_DSN
          valueFrom:
            secretKeyRef:
              name: turash-backend-secret
              key: POSTGRES_DSN
              optional: true
        # Construct PostgreSQL DSN if not provided
        - name: POSTGRES_DSN
          value: "host=$(POSTGRES_HOST) port=$(POSTGRES_PORT) user=$(POSTGRES_USER) password=$(POSTGRES_PASSWORD) dbname=$(POSTGRES_DB) sslmode=$(POSTGRES_SSLMODE)"
        resources:
          requests:
            memory: "256Mi"
            cpu: "100m"
          limits:
            memory: "512Mi"
            cpu: "500m"
        livenessProbe:
          httpGet:
            path: /health
            port: http
          initialDelaySeconds: 30
          periodSeconds: 10
          timeoutSeconds: 5
          failureThreshold: 3
        readinessProbe:
          httpGet:
            path: /health
            port: http
          initialDelaySeconds: 10
          periodSeconds: 5
          timeoutSeconds: 3
          failureThreshold: 3
        securityContext:
          runAsNonRoot: true
          runAsUser: 1000
          allowPrivilegeEscalation: false
          readOnlyRootFilesystem: true
          capabilities:
            drop:
            - ALL
      restartPolicy: Always
      terminationGracePeriodSeconds: 30