apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres
  namespace: honeydue
  labels:
    app.kubernetes.io/name: postgres
    app.kubernetes.io/part-of: honeydue
spec:
  replicas: 1
  strategy:
    type: Recreate  # ReadWriteOnce PVC — can't attach to two pods
  selector:
    matchLabels:
      app.kubernetes.io/name: postgres
  template:
    metadata:
      labels:
        app.kubernetes.io/name: postgres
        app.kubernetes.io/part-of: honeydue
    spec:
      serviceAccountName: postgres
      # Note: postgres image entrypoint requires root initially to set up
      # permissions, then drops to the postgres user. runAsNonRoot is not set
      # here because of this requirement. This differs from prod which uses
      # managed Neon PostgreSQL (no container to secure).
      securityContext:
        fsGroup: 999
        seccompProfile:
          type: RuntimeDefault
      containers:
        - name: postgres
          image: postgres:17-alpine
          ports:
            - containerPort: 5432
              protocol: TCP
          securityContext:
            allowPrivilegeEscalation: false
            capabilities:
              drop: ["ALL"]
          env:
            - name: POSTGRES_DB
              valueFrom:
                configMapKeyRef:
                  name: honeydue-config
                  key: POSTGRES_DB
            - name: POSTGRES_USER
              valueFrom:
                configMapKeyRef:
                  name: honeydue-config
                  key: POSTGRES_USER
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: honeydue-secrets
                  key: POSTGRES_PASSWORD
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          volumeMounts:
            - name: postgres-data
              mountPath: /var/lib/postgresql/data
            - name: run
              mountPath: /var/run/postgresql
            - name: tmp
              mountPath: /tmp
          resources:
            requests:
              cpu: 100m
              memory: 128Mi
            limits:
              cpu: "1"
              memory: 1Gi
          readinessProbe:
            exec:
              command: ["pg_isready", "-U", "honeydue"]
            initialDelaySeconds: 5
            periodSeconds: 10
            timeoutSeconds: 5
          livenessProbe:
            exec:
              command: ["pg_isready", "-U", "honeydue"]
            initialDelaySeconds: 30
            periodSeconds: 30
            timeoutSeconds: 5
      volumes:
        - name: postgres-data
          persistentVolumeClaim:
            claimName: postgres-data
        - name: run
          emptyDir: {}
        - name: tmp
          emptyDir:
            sizeLimit: 64Mi
