ungleich-user/deploy/k8s/dev/postgres.yaml

# Throwaway PostgreSQL for the dev overlay (emptyDir: data is lost on restart).
apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres
spec:
  selector:
    matchLabels: {app: postgres}
  template:
    metadata:
      labels: {app: postgres}
    spec:
      containers:
        - name: postgres
          image: postgres:18-alpine
          env:
            - {name: POSTGRES_DB, value: ungleich_user}
            - {name: POSTGRES_USER, value: ungleich_user}
            - {name: POSTGRES_PASSWORD, value: dev-only}
          ports:
            - {containerPort: 5432}
          readinessProbe:
            exec:
              command: ["pg_isready", "-U", "ungleich_user"]
            periodSeconds: 3
          volumeMounts:
            - {name: data, mountPath: /var/lib/postgresql}
      volumes:
        - name: data
          emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
  name: postgres
spec:
  selector: {app: postgres}
  ports:
    - {port: 5432}