docker: add mariadb and phpmyadmin by default

Also enable persistence for redis.

While both are not used by default they can be for the locking
and mesage queue. This should make it easier to get started.

docker-dev/README.md

@@ -31,3 +31,4 @@ the symfony app.
 
 * Open <http://127.0.0.1:8000/> for the API Platform webpage
 * Open <http://localhost:8101/> for redis commander
+* Open <http://localhost:8102/> for phpmyadmin

docker-dev/docker-compose.yml

@@ -35,6 +35,9 @@ services:
 
   redis:
     image: "redis"
+    entrypoint: redis-server --save 60 1 --loglevel warning
+    volumes:
+      - redis-data:/data
 
   redis-commander:
     image: "rediscommander/redis-commander"
@@ -42,3 +45,26 @@ services:
       - REDIS_HOST=redis
     ports:
       - "8101:8081"
+
+  mariadb:
+    image: mariadb:10.3
+    volumes:
+      - mariadb-data:/var/lib/mysql
+    environment:
+      - MYSQL_DATABASE=db
+      - MYSQL_USER=db
+      - MYSQL_PASSWORD=secret
+      - MYSQL_ROOT_PASSWORD=root-secret
+
+  phpmyadmin:
+    image: phpmyadmin/phpmyadmin
+    environment:
+      - PMA_USER=db
+      - PMA_PASSWORD=secret
+      - PMA_HOSTS=mariadb
+    ports:
+      - "8102:80"
+
+volumes:
+  mariadb-data:
+  redis-data:
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