devenv: add postgres ha test config example

devenv/docker/ha_test/docker-compose.yaml

@@ -8,18 +8,33 @@ services:
     volumes:
       - /var/run/docker.sock:/tmp/docker.sock:ro
 
-  mysql:
+  db:
     image: mysql
     environment:
       MYSQL_ROOT_PASSWORD: rootpass
       MYSQL_DATABASE: grafana
       MYSQL_USER: grafana
       MYSQL_PASSWORD: password
+    ports:
+      - 3306
     healthcheck:
       test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
       timeout: 10s
       retries: 10
 
+  # db:
+  #   image: postgres:9.3
+  #   environment:
+  #     POSTGRES_DATABASE: grafana
+  #     POSTGRES_USER: grafana
+  #     POSTGRES_PASSWORD: password
+  #   ports:
+  #     - 5432
+  #   healthcheck:
+  #     test: ["CMD-SHELL", "pg_isready -d grafana -U grafana"]
+  #     timeout: 10s
+  #     retries: 10
+
   grafana:
     image: grafana/grafana:dev
     volumes:
@@ -27,18 +42,23 @@ services:
     environment:
       - VIRTUAL_HOST=grafana.loc
       - GF_SERVER_ROOT_URL=http://grafana.loc
-      - GF_DATABASE_TYPE=mysql
-      - GF_DATABASE_HOST=mysql:3306
       - GF_DATABASE_NAME=grafana
       - GF_DATABASE_USER=grafana
       - GF_DATABASE_PASSWORD=password
+      - GF_DATABASE_TYPE=mysql
+      - GF_DATABASE_HOST=db:3306
       - GF_SESSION_PROVIDER=mysql
-      - GF_SESSION_PROVIDER_CONFIG=grafana:password@tcp(mysql:3306)/grafana?allowNativePasswords=true
+      - GF_SESSION_PROVIDER_CONFIG=grafana:password@tcp(db:3306)/grafana?allowNativePasswords=true
+      # - GF_DATABASE_TYPE=postgres
+      # - GF_DATABASE_HOST=db:5432
+      # - GF_DATABASE_SSL_MODE=disable
+      # - GF_SESSION_PROVIDER=postgres
+      # - GF_SESSION_PROVIDER_CONFIG=user=grafana password=password host=db port=5432 dbname=grafana sslmode=disable
       - GF_LOG_FILTERS=alerting.notifier:debug,alerting.notifier.slack:debug
     ports:
       - 3000
     depends_on:
-      mysql:
+      db:
         condition: service_healthy
 
   prometheus:
@@ -55,4 +75,4 @@ services:
   #   environment:
   #     - DATA_SOURCE_NAME=grafana:password@(mysql:3306)/
   #   ports:
-  #     - 9104
+  #     - 9104