feat: mariadb healthcheck + wildfly using external db

.gitignore

@@ -5,5 +5,5 @@
 build
 bin
 
-# Ignore mariadb volume directory
+# Ignore docker volume directory
 mariadb

docker-compose.yml

@@ -12,6 +12,11 @@ services:
       - ./build/libs/:/opt/jboss/wildfly/standalone/deployments/
     environment:
       - WILDFLY_PASSWORD=password
+      - DB_PORT=3306
+      - DB_HOST=mariadb
+    depends_on:
+      mariadb:
+        condition: service_healthy
     restart: always
 
   mariadb:
@@ -27,6 +32,14 @@ services:
       - 3306:3306
     volumes:
       - ./mariadb/:/var/lib/mysql/
+    healthcheck:
+      test:
+        [
+          "CMD-SHELL",
+          'mysqladmin -p$$MYSQL_ROOT_PASSWORD -h localhost ping | grep "mysqld is alive" || exit 1',
+        ]
+      interval: 2s
+      retries: 10
     restart: always
 
 volumes: