Switch to MariaDB database

docker-compose.yml

@@ -1,4 +1,4 @@
-version: '3'
+version: '3.9'
 
 services:
   backend:
@@ -8,6 +8,9 @@ services:
       args:
         # Use an ".env" file to overwrite this variable if your local user's UID is not 1000.
         DEV_USER_UID: ${DEV_USER_UID:-1000}
+    depends_on:
+      db:
+        condition: service_healthy
     ports:
       - '5000:5000'
     volumes:
@@ -16,5 +19,29 @@ services:
       - development.env
     command: flask run --host=0.0.0.0
 
+  db:
+    image: mariadb
+    volumes:
+      - mariadb_data:/var/lib/mysql
+    environment:
+      MARIADB_DATABASE: tofu
+      MARIADB_USER: tofu
+      MARIADB_PASSWORD: development
+      MARIADB_ROOT_PASSWORD: development
+    healthcheck:
+      test: "mysqladmin ping -h 127.0.0.1 -u$$MARIADB_USER -p$$MARIADB_PASSWORD"
+      interval: 1s
+      timeout: 1s
+      retries: 20
+
+  adminer:
+    image: phpmyadmin
+    ports:
+      - '8099:80'
+    environment:
+      PMA_HOST: db
+      PMA_USER: tofu
+      PMA_PASSWORD: development
+
 volumes:
   mariadb_data: