k8s/db-deployment.json

{
  "apiVersion": "apps/v1",
  "kind": "Deployment",
  "metadata": {
    "name": "sample-db"
  },
  "spec": {
    "replicas": 1,
    "selector": {
      "matchLabels": {
        "app": "sample-db"
      }
    },
    "strategy": {},
    "template": {
      "metadata": {
        "labels": {
          "app": "sample-db"
        }
      },
      "spec": {
        "volumes": [
          {
            "name": "sample-db-storage",
            "persistentVolumeClaim": {
              "claimName": "sample-db-pvclaim"
            }
          }
        ],
        "containers": [
          {
            "image": "postgres",
            "name": "sample-db",
            "env": [
              {
                "name": "POSTGRES_USER",
                "valueFrom": {
                  "configMapKeyRef": {
                    "name": "sample-db-config",
                    "key": "db_user"
                  }
                }
              },
              {
                "name": "POSTGRES_PASSWORD",
                "valueFrom": {
                  "configMapKeyRef": {
                    "name": "sample-db-config",
                    "key": "db_password"
                  }
                }
              },
              {
                "name": "PGDATA",
                "value": "/var/lib/postgresql/data/pgdata"
              },
              {
                "name": "POSTGRES_DB",
                "value": "sample"
              }
            ],
            "ports": [
              {
                "containerPort": 5432,
                "name": "sample-db"
              }
            ],
            "volumeMounts": [
              {
                "name": "sample-db-storage",
                "mountPath": "/var/lib/postgresql/data"
              }
            ]
          }
        ]
      }
    }
  }
}