add health check

docker-compose.yaml

@@ -2,6 +2,7 @@ version: "2"
 services:
   mariadb:
     image: mariadb:10
+    container_name: my_mariadb
     expose:
       - 3306
     volumes:
@@ -10,17 +11,23 @@ services:
     environment:
       - MYSQL_DATABASE=${DATABASE_NAME}
       - MYSQL_ROOT_PASSWORD=${MARIADB_ROOT_PASSWORD}
+      - MYSQL_ALLOW_EMPTY_ROOT_PASSWORD=yes
     restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "healthcheck.sh", "--su-mysql", "--connect"]
+      timeout: 5s
+      retries: 10
 
   backup:
     build: .
     image: fradelg/mysql-cron-backup
     depends_on:
-      - mariadb
+      mariadb:
+        condition: service_healthy
     volumes:
       - ${VOLUME_PATH}/backup:/backup
     environment:
-      - MYSQL_HOST=mariadb
+      - MYSQL_HOST=my_mariadb
       - MYSQL_USER=root
       - MYSQL_PASS=${MARIADB_ROOT_PASSWORD}
       - MAX_BACKUPS=1