apiVersion: v1
kind: Service
metadata:
  name: postgres-purple-lab
spec:
  selector:
    app: postgres-purple-lab
  ports:
    - name: postgres
      port: 5432
      targetPort: 5432
      protocol: TCP
  clusterIP: None
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgres-purple-lab
spec:
  serviceName: postgres-purple-lab
  replicas: 1
  selector:
    matchLabels:
      app: postgres-purple-lab
  template:
    metadata:
      labels:
        app: postgres-purple-lab
    spec:
      securityContext:
        runAsUser: 999
        runAsGroup: 999
        fsGroup: 999
      containers:
        - name: postgres
          image: postgres:16-alpine
          ports:
            - name: postgres
              containerPort: 5432
              protocol: TCP
          env:
            - name: POSTGRES_USER
              value: purplelab
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: purple-lab-secrets
                  key: POSTGRES_PASSWORD
            - name: POSTGRES_DB
              value: purplelab
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          volumeMounts:
            - name: postgres-data
              mountPath: /var/lib/postgresql/data
          resources:
            requests:
              memory: "256Mi"
              cpu: "250m"
            limits:
              memory: "512Mi"
              cpu: "500m"
          livenessProbe:
            exec:
              command: ["pg_isready", "-U", "purplelab"]
            initialDelaySeconds: 15
            periodSeconds: 10
            timeoutSeconds: 5
            failureThreshold: 3
          readinessProbe:
            exec:
              command: ["pg_isready", "-U", "purplelab"]
            initialDelaySeconds: 5
            periodSeconds: 5
            timeoutSeconds: 3
            failureThreshold: 3
  volumeClaimTemplates:
    - metadata:
        name: postgres-data
      spec:
        accessModes: ["ReadWriteOnce"]
        resources:
          requests:
            storage: 10Gi