#
# ============LICENSE_START=======================================================
#  Copyright (C) 2022 Nordix Foundation.
# ================================================================================
# 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.
#
# SPDX-License-Identifier: Apache-2.0
# ============LICENSE_END=========================================================
#
apiVersion: v1
kind: PersistentVolume
metadata:
  name: postgres-storage-pv-volume
  namespace: default
  labels:
    type: local
    app: postgres
spec:
  storageClassName: manual
  capacity:
    storage: 2Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: "/var/keycloak/data2"
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: postgres-storage-pv-claim
  namespace: default
  labels:
    app: postgres
spec:
  storageClassName: manual
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 2Gi
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: db-init
data:
  init.sql: |
    SELECT 'CREATE DATABASE capif'
    WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = 'capif')\gexec
    DO $$
    BEGIN
      IF NOT EXISTS (SELECT FROM pg_user WHERE  usename = 'capif') THEN
         CREATE USER capif WITH PASSWORD 'capif'; 
         GRANT ALL PRIVILEGES ON DATABASE capif TO capif;
      END IF;
    END
    $$;
---
apiVersion: v1
kind: Service
metadata:
  name: postgres
  namespace: default
spec:
  type: NodePort
  selector:
    app: postgres
  ports:
    - protocol: TCP
      port: 5432 
      nodePort: 30032
      targetPort: 5432 
---
apiVersion: apps/v1 
kind: Deployment
metadata:
  name: postgres
  namespace: default
spec:
  selector:
    matchLabels:
      app: postgres
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: postgres
    spec:
      hostname: postgres
      containers:
      - image: nexus3.onap.org:10001/postgres
        name: postgres
        imagePullPolicy: IfNotPresent 
        env:
        - name: POSTGRES_DB
          value: keycloak 
        - name: POSTGRES_USER
          value: keycloak 
        - name: POSTGRES_PASSWORD
          value: keycloak 
        - name: PGDATA
          value: /var/lib/pgsql/data 
        lifecycle:  
          postStart:
            exec:
              command: [ "/bin/sh", "-c", "sleep 10 && psql -U $POSTGRES_USER -f /init.sql" ]
        livenessProbe:
          exec:
            command:
              - /bin/sh
              - -c
              - exec pg_isready -U "keycloak" -h 127.0.0.1 -p 5432
          initialDelaySeconds: 30
          periodSeconds: 10
          timeoutSeconds: 5
        readinessProbe:
          exec:
            command: ["psql", "-w", "-U", $(POSTGRES_USER), "-d", $(POSTGRES_DB), "-c", "SELECT 1"]
          initialDelaySeconds: 15
          timeoutSeconds: 2
        ports:
        - containerPort: 5432 
          name: postgres
        volumeMounts:
        - name: postgres-persistent-storage
          mountPath: /var/lib/pgsql/data 
        - name : tmp-dir  
          mountPath: /tmp
        - name: db-init
          mountPath: /init.sql 
          subPath: init.sql 
      volumes:
      - name: postgres-persistent-storage
        persistentVolumeClaim:
          claimName: postgres-storage-pv-claim
      - name: tmp-dir
        hostPath:
          path: /tmp
          type: Directory 
      - name: db-init
        configMap:
          name: db-init
          defaultMode: 0755