adhere to upstream compose file for v1.0.0

compose.yml

@@ -1,10 +1,8 @@
-version: "3.8"
-
 # Docker compose recipe for a production-ready InvenTree setup, with the following containers:
 # - PostgreSQL as the database backend
 # - gunicorn as the InvenTree web server
 # - django-q as the InvenTree background worker process
-# - nginx as a reverse proxy
+# - Caddy as a reverse proxy
 # - redis as the cache manager (optional, disabled by default)
 
 # ---------------------
@@ -34,16 +32,20 @@ version: "3.8"
 # INVENTREE_TAG=0.7.5
 #
 
+# ----------------------------
+# Docker compose customization
+# ----------------------------
+# If you wish to customize the docker-compose script, you should only do so if you understand the stack!
+# Do not expect support for customizations that are not part of the standard InvenTree setup!
+
 services:
     # Database service
     # Use PostgreSQL as the database backend
     inventree-db:
+        image: postgres:13
         container_name: inventree-db
-        image: ${POSTGRES_IMAGE:?You must provide the 'POSTGRES_IMAGE' variable in the .env file}
         expose:
             - ${INVENTREE_DB_PORT:-5432}/tcp
-        env_file:
-            - .env
         environment:
             - PGDATA=/var/lib/postgresql/data/pgdb
             - POSTGRES_USER=${INVENTREE_DB_USER:?You must provide the 'INVENTREE_DB_USER' variable in the .env file}
@@ -55,43 +57,39 @@ services:
         restart: unless-stopped
 
     # redis acts as database cache manager
-    # only runs under the "redis" profile : https://docs.docker.com/compose/profiles/
     inventree-cache:
+        image: redis:7-alpine
         container_name: inventree-cache
-        image: ${REDIS_IMAGE:?You must provide the 'REDIS_IMAGE' variable in the .env file}
-        depends_on:
-            - inventree-db
         env_file:
             - .env
-        profiles:
-            - redis
         expose:
-           - ${INVENTREE_CACHE_PORT:-6379}
+            - ${INVENTREE_CACHE_PORT:-6379}
         restart: always
 
     # InvenTree web server service
     # Uses gunicorn as the web server
     inventree-server:
-        container_name: inventree-server
         # If you wish to specify a particular InvenTree version, do so here
-        image: ${INVENTREE_IMAGE:?You must provide the 'INVENTREE_IMAGE' variable in the .env file}
+        image: inventree/inventree:${INVENTREE_TAG:-stable}
+        container_name: inventree-server
+        # Only change this port if you understand the stack.
         expose:
-           - 8000
-        env_file:
-           - .env
+            - 8000
         depends_on:
             - inventree-db
+            - inventree-cache
+        env_file:
+            - .env
         volumes:
             # Data volume must map to /home/inventree/data
-            - ${INVENTREE_EXT_VOLUME:?You must specify the 'INVENTREE_EXT_VOLUME' variable in the .env file!}:/home/inventree/data:z
-            - ./plugins:/home/inventree/InvenTree/plugins:z
+            - ${INVENTREE_EXT_VOLUME}:/home/inventree/data:z
         restart: unless-stopped
 
     # Background worker process handles long-running or periodic tasks
     inventree-worker:
-        container_name: inventree-worker
         # If you wish to specify a particular InvenTree version, do so here
-        image: ${INVENTREE_IMAGE:?You must provide the 'INVENTREE_IMAGE' variable in the .env file}
+        image: inventree/inventree:${INVENTREE_TAG:-stable}
+        container_name: inventree-worker
         command: invoke worker
         depends_on:
             - inventree-server
@@ -99,26 +97,26 @@ services:
             - .env
         volumes:
             # Data volume must map to /home/inventree/data
-            - ${INVENTREE_EXT_VOLUME:?You must specify the 'INVENTREE_EXT_VOLUME' variable in the .env file!}:/home/inventree/data:z
+            - ${INVENTREE_EXT_VOLUME}:/home/inventree/data:z
         restart: unless-stopped
 
-    # nginx acts as a reverse proxy
-    # static files are served directly by nginx
-    # media files are served by nginx, although authentication is redirected to inventree-server
-    # web requests are redirected to gunicorn
-    # NOTE: You will need to provide a working nginx.conf file!
+    # caddy acts as reverse proxy and static file server
+    # https://hub.docker.com/_/caddy
     inventree-proxy:
         container_name: inventree-proxy
-        image: ${NGINX_IMAGE:?You must provide the 'NGINX_IMAGE' variable in the .env file}
+        image: caddy:alpine
+        restart: always
         depends_on:
             - inventree-server
         ports:
-            # Default web port is 1337 (can be changed in the .env file)
-            - ${INVENTREE_WEB_PORT:-1337}:8080
+            - ${INVENTREE_WEB_PORT:-80}:80
+            - 443:443
+        env_file:
+            - .env
         volumes:
-            # Provide nginx configuration file to the container
-            # Refer to the provided example file as a starting point
-            - ./nginx.prod.conf:/etc/nginx/conf.d/default.conf:ro,Z
-            # nginx proxy needs access to static and media files
-            - ${INVENTREE_EXT_VOLUME:?You must specify the 'INVENTREE_EXT_VOLUME' variable in the .env file!}:/var/www:z
-        restart: unless-stopped
+            - ./Caddyfile:/etc/caddy/Caddyfile:ro,z
+            - ${INVENTREE_EXT_VOLUME}/static:/var/www/static:z
+            - ${INVENTREE_EXT_VOLUME}/media:/var/www/media:z
+            - ${INVENTREE_EXT_VOLUME}:/var/log:z
+            - ${INVENTREE_EXT_VOLUME}:/data:z
+            - ${INVENTREE_EXT_VOLUME}:/config:z