modifying things for portainer

mariadb/docker-compose.yml

@@ -1,13 +1,19 @@
 services:
-
   mariadb:
     image: ${MARIADB_IMAGE:-mariadb:latest}
     restart: unless-stopped
-    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW --innodb-file-per-table=1 --skip-innodb-read-only-compressed
+    command: >
+      --transaction-isolation=READ-COMMITTED
+      --binlog-format=ROW
+      --innodb-file-per-table=1
+      --skip-innodb-read-only-compressed
     environment:
-      - MARIADB_DATABASE=${MARIADB_MARIADB_DATABASE:-mydb}
-      - MARIADB_ROOT_PASSWORD=${MARIADB_MARIADB_ROOT_PASSWORD:-ChangeThisPassword}
-      - MARIADB_USER=${MARIADB_MARIADB_USER:-dbuser}
-      - MARIADB_PASSWORD=${MARIADB_MARIADB_PASSWORD:-AlsoChangeThisPassword}
+      - MARIADB_DATABASE=${MARIADB_DATABASE:-mydb}
+      - MARIADB_ROOT_PASSWORD=${MARIADB_ROOT_PASSWORD:-ChangeThisPassword}
+      - MARIADB_USER=${MARIADB_USER:-dbuser}
+      - MARIADB_PASSWORD=${MARIADB_PASSWORD:-AlsoChangeThisPassword}
     volumes:
-      - ${VOL_PATH:-./data/}/mariadb:/var/lib/mysql
+      - mariadb-data:/var/lib/mysql
+
+volumes:
+  mariadb-data: