apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres # Sets Deployment name
spec:
  replicas: 1
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
        - name: postgres
          image: postgres:15.1-alpine
          imagePullPolicy: "IfNotPresent"
          ports:
            - containerPort: 5432 # Exposes container port
          env:
            - name: POSTGRES_DB
              value: nemesis
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                    name: postgres-creds
                    key: postgres-user
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                    name: postgres-creds
                    key: postgres-password
          volumeMounts:
            - mountPath: /var/lib/postgresql/data
              name: postgredb
            - name: postgres-nemesis-schema
              mountPath: /docker-entrypoint-initdb.d/nemesis.sql
              subPath: nemesis.sql
              readOnly: true
      volumes:
        - name: postgres-nemesis-schema
          configMap:
            name: postgres-nemesis-schema

        # Persistence
        # Option 1) Use to have the DB wiped on each reboot (for dev)
        - name: postgredb
          emptyDir: {}