# Copyright 2020 Huawei Technologies Co., Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


# postgres database
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres-db
  namespace: mep
  labels:
    app: postgres-db
spec:
  replicas: 1
  selector:
    matchLabels:
      app: postgres-db
  template:
    metadata:
      labels:
        app: postgres-db
    spec:
      volumes:
        - name: postgres-data
          persistentVolumeClaim:
            claimName: postgres-pv-claim
      containers:
        - name: postgres-db
          image: postgres:9.6
          imagePullPolicy: "IfNotPresent"
          env:
            - name: POSTGRES_DB
              value: kong
            - name: POSTGRES_USER
              value: kong
            - name: POSTGRES_PASSWORD
              value: kong
          volumeMounts:
            - mountPath: /var/lib/postgresql/data
              name: postgres-data
          ports:
            - containerPort: 5432

# prepare postgres-db
---
apiVersion: batch/v1
kind: Job
metadata:
  name: prepare-postgre-db
  namespace: mep
spec:
  template:
    spec:
      initContainers:
        - name: check-db-ready
          image: postgres:9.6
          command: ['sh', '-c', 'until pg_isready -h postgres-db -p 5432;
                    do echo waiting for database; sleep 2; done;']
      containers:
        - name: prepare-postgres-db
          image: kong:1.5.1-alpine
          env:
            - name: KONG_DATABASE
              value: "postgres"
            - name: KONG_PG_DATABASE
              value: kong
            - name: KONG_PG_HOST
              value: postgres-db
            - name: KONG_PG_USER
              value: kong
            - name: KONG_PG_PASSWORD
              value: kong
          command: ['kong']
          args: ['migrations', 'bootstrap']
      restartPolicy: Never
  backoffLimit: 4


# postgres servcie
---
apiVersion: v1
kind: Service
metadata:
  name: postgres-db
  namespace: mep
spec:
  selector:
    app: postgres-db
  type: ClusterIP
  ports:
    - port: 5432