feat: change compose file to use dedicated mysql database

docker-compose.yml

@@ -15,26 +15,6 @@ version: "3.8"
 # 
 
 services:
-    # Database service
-    # Use PostgreSQL as the database backend
-    # Note: this can be changed to a different backend,
-    #       just make sure that you change the INVENTREE_DB_xxx vars below
-    inventree-db:
-        container_name: inventree-db
-        image: postgres:13
-        ports:
-            - 5432/tcp
-        environment:
-            - PGDATA=/var/lib/postgresql/data/pgdb
-            # The pguser and pgpassword values must be the same in the other containers
-            # Ensure that these are correctly configured in your prod-config.env file
-            - POSTGRES_USER=pguser
-            - POSTGRES_PASSWORD=pgpassword
-        volumes:
-            # Map 'data' volume such that postgres database is stored externally
-            - data:/var/lib/postgresql/data/
-        restart: unless-stopped
-
     # InvenTree web server services
     # Uses gunicorn as the web server
     inventree-server:
@@ -44,15 +24,19 @@ services:
         image: inventree/inventree:latest
         expose:
             - 8000
-        depends_on:
-            - inventree-db
         volumes:
             # Data volume must map to /home/inventree/data
             - data:/home/inventree/data
-        env_file:
-            # Environment variables required for the production server are configured in prod-config.env
-            - prod-config.env
         restart: unless-stopped
+        environment:
+            INVENTREE_DEBUG: False
+            INVENTREE_LOG_LEVEL: WARNING
+            INVENTREE_DB_ENGINE: mysql
+            INVENTREE_DB_HOST: ${INVENTREE_DB_HOST:?err}
+            INVENTREE_DB_PORT: ${INVENTREE_DB_PORT:?err}
+            INVENTREE_DB_NAME: ${INVENTREE_DB_NAME:?err}
+            INVENTREE_DB_USER: ${INVENTREE_DB_USER:?err}
+            INVENTREE_DB_PASSWORD: ${INVENTREE_DB_PASSWORD:?err}
 
     # Background worker process handles long-running or periodic tasks
     inventree-worker:
@@ -62,15 +46,20 @@ services:
         image: inventree/inventree:latest
         command: invoke worker
         depends_on:
-            - inventree-db
             - inventree-server
         volumes:
             # Data volume must map to /home/inventree/data
             - data:/home/inventree/data
-        env_file:
-            # Environment variables required for the production server are configured in prod-config.env
-            - prod-config.env
         restart: unless-stopped
+        environment:
+            INVENTREE_DEBUG: False
+            INVENTREE_LOG_LEVEL: WARNING
+            INVENTREE_DB_ENGINE: mysql
+            INVENTREE_DB_HOST: ${INVENTREE_DB_HOST:?err}
+            INVENTREE_DB_PORT: ${INVENTREE_DB_PORT:?err}
+            INVENTREE_DB_NAME: ${INVENTREE_DB_NAME:?err}
+            INVENTREE_DB_USER: ${INVENTREE_DB_USER:?err}
+            INVENTREE_DB_PASSWORD: ${INVENTREE_DB_PASSWORD:?err}
 
     # nginx acts as a reverse proxy
     # static files are served directly by nginx