k8s/manifests/02-deployments/deployment-pgadmin.yaml

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: pgadmin
  namespace: pg 
spec:
  selector:
   matchLabels:
    app: pgadmin
  replicas: 1
  template:
    metadata:
      labels:
        app: pgadmin
    spec:
      initContainers:
      # костыль взят отсюда  https://devpress.csdn.net/k8s/62fd568b7e66823466191f32.html
      - name: pgadmin-data-permission-fix
        image: busybox
        command: ["/bin/chown", "-R", "5050:5050", "/var/lib/pgadmin"]
        volumeMounts:
        - name: pgadmin
          mountPath: /var/lib/pgadmin
      containers:
      - name: pgadmin4
        image: dpage/pgadmin4
        env:
          - name: PGADMIN_DEFAULT_EMAIL
            value: "admin@guaranteedstruggle.host"
          - name: PGADMIN_DEFAULT_PASSWORD
            valueFrom:
              secretKeyRef:
                name: pgadmin-secret
                key: pgadmin-default-password
          - name: PGADMIN_PORT
            value: "80"
            
        ports:
          - containerPort: 80
            name: pgadminport
              
        volumeMounts:
        - mountPath: /var/lib/pgadmin
          name: pgadmin 
        - name: pgadmin-config
          mountPath: /pgadmin4/servers.json
          subPath: servers.json
          readOnly: true

      volumes:
      - name:  pgadmin
        persistentVolumeClaim:
          claimName: pgadmin-pv-claim 
      - name: pgadmin-config
        configMap:
          name: pgadmin-config
---
kind: PersistentVolume
apiVersion: v1
metadata:
  namespace: pg 
  name: pgadmin-pv-volume
  labels:
    type: local
    app: pgadmin
spec:
  storageClassName: longhorn
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  hostPath:
    path: "/mnt/data"
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  namespace: pg 
  name: pgadmin-pv-claim
  labels:
    app: pgadmin
spec:
  storageClassName: longhorn
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 1Gi