Adds redis support to production docker-compose (#3171)

* Adds a redis container to the production docker-compose script

* Fix ports

docker/production/.env

@@ -34,6 +34,11 @@ INVENTREE_DB_PORT=5432
 #INVENTREE_DB_USER=pguser
 #INVENTREE_DB_PASSWORD=pgpassword
 
+# Redis cache setup
+# Refer to settings.py for other cache options
+INVENTREE_CACHE_HOST=inventree-cache
+INVENTREE_CACHE_PORT=6379
+
 # Enable plugins?
 INVENTREE_PLUGINS_ENABLED=False
 

docker/production/docker-compose.yml

@@ -1,10 +1,11 @@
 version: "3.8"
 
-# Docker compose recipe for InvenTree production server
+# Docker compose recipe for InvenTree production server, with the following containerized processes
 # - PostgreSQL as the database backend
 # - gunicorn as the InvenTree web server
 # - django-q as the InvenTree background worker process
 # - nginx as a reverse proxy
+# - redis as the cache manager
 
 # ---------------------
 # READ BEFORE STARTING!
@@ -112,6 +113,18 @@ services:
             - inventree_data:/var/www
         restart: unless-stopped
 
+    # redis acts as database cache manager
+    inventree-cache:
+        container_name: inventree-cache
+        image: redis:7.0
+        depends_on:
+            - inventree-db
+        env_file:
+            - .env
+        ports:
+            - ${INVENTREE_CACHE_PORT:-6379}:6379
+        restart: unless-stopped
+
 volumes:
     # NOTE: Change /path/to/data to a directory on your local machine
     # Persistent data, stored external to the container(s)