apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres-deployment
  namespace: forfarm
spec:
  replicas: 1
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
        - name: postgres
          image: postgres:16-alpine
          ports:
            - containerPort: 5432
          resources:
            requests:
              memory: "256Mi"
              cpu: "100m"
            limits:
              memory: "1Gi"
              cpu: "500m"
          env:
            - name: POSTGRES_DB
              valueFrom:
                configMapKeyRef:
                  name: forfarm-config
                  key: POSTGRES_DB
            - name: POSTGRES_USER
              valueFrom:
                configMapKeyRef:
                  name: forfarm-config
                  key: POSTGRES_USER
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: forfarm-secrets
                  key: POSTGRES_PASSWORD
          volumeMounts:
            - mountPath: /var/lib/postgresql/data
              name: postgres-storage
          readinessProbe:
            exec:
              command: ["pg_isready", "-U", "$(POSTGRES_USER)", "-d", "$(POSTGRES_DB)"]
            initialDelaySeconds: 10
            periodSeconds: 5
          livenessProbe:
            exec:
              command: ["pg_isready", "-U", "$(POSTGRES_USER)", "-d", "$(POSTGRES_DB)"]
            initialDelaySeconds: 30
            periodSeconds: 10
      volumes:
        - name: postgres-storage
          persistentVolumeClaim:
            claimName: postgres-pvc
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: postgres-pvc
  namespace: forfarm
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi