postgres.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: postgres-volume
  labels:
    type: local
    app: postgres
spec:
  storageClassName: manual
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteMany
  hostPath:
    path: /data/postgresql
---
apiVersion: v1
kind: PersistentVolumeClaim # Create PVC
metadata:
  name: postgres-volume-claim
  labels:
    app: postgres
spec:
  storageClassName: manual
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 10Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres
spec:
  replicas: 2
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
        - name: postgres
          image: postgres:13.0
          imagePullPolicy: "IfNotPresent"
          ports:
            - containerPort: 5432
          env:
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                  name: postgres-credentials
                  key: POSTGRES_USER
            - name: POSTGRES_DB
              valueFrom:
                secretKeyRef:
                  name: postgres-credentials
                  key: POSTGRES_DB
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: postgres-credentials
                  key: POSTGRES_PASSWORD
          volumeMounts:
            - mountPath: /var/lib/postgresql/data
              name: postgresdata
      volumes:
        - name: postgresdata
          persistentVolumeClaim:
            claimName: postgres-volume-claim
---
apiVersion: v1
kind: Service # Create service
metadata:
  name: postgres # Sets the service name
  labels:
    app: postgres # Defines app to create service for
spec:
  type: NodePort # Sets the service type
  ports:
    - port: 5432 # Sets the port to run the postgres application
  selector:
    app: postgres