feat(docker): pull and test docker images locally (#2001)

Motivation
----------
We push our docker images to Github's container registry here: https://github.com/orgs/dreammall-earth/packages?repo_name=dreammall.earth

With this change, we will be able to pull these images and test them locally.
This speeds up development significantly, especially since on my machine
it takes ages to build `frontend` and `presenter`.

Setting `BREVO` environment variables was necessary so that the backend
server does not terminate immediately.

How to test
-----------
1. From the root directory:
  ```
  echo "IMAGE_TAG=<image_tag>" > .env
  ```
2. `docker compose -f docker-compose.yml pull`
3. Images get downloaded from container registry

.env.dist

@@ -0,0 +1 @@
+IMAGE_TAG=

.gitignore

@@ -7,3 +7,5 @@ build/
 .vscode
 
 .DS_Store
+
+.env

authentik/docker-compose.yml

@@ -40,7 +40,7 @@ services:
       - redis:/data
 
   authentik:
-    image: ghcr.io/dreammall-earth/dreammall.earth/authentik:latest
+    image: ghcr.io/dreammall-earth/dreammall.earth/authentik:${IMAGE_TAG:-latest}
     build:
       context: .
       target: production
@@ -60,7 +60,7 @@ services:
       - redis
 
   authentik-worker:
-    image: ghcr.io/dreammall-earth/dreammall.earth/authentik:latest
+    image: ghcr.io/dreammall-earth/dreammall.earth/authentik:${IMAGE_TAG:-latest}
     build:
       context: .
       target: production

docker-compose.yml

@@ -20,7 +20,7 @@ services:
       - db_vol:/var/lib/mysql
 
   presenter:
-    image: ghcr.io/dreammall-earth/dreammall.earth/presenter:latest
+    image: ghcr.io/dreammall-earth/dreammall.earth/presenter:${IMAGE_TAG:-latest}
     build:
       context: ./presenter
       target: production
@@ -30,7 +30,7 @@ services:
       - NODE_ENV=production
 
   frontend:
-    image: ghcr.io/dreammall-earth/dreammall.earth/frontend:latest
+    image: ghcr.io/dreammall-earth/dreammall.earth/frontend:${IMAGE_TAG:-latest}
     build:
       context: ./frontend
       target: production
@@ -40,7 +40,7 @@ services:
       - NODE_ENV=production
 
   backend:
-    image: ghcr.io/dreammall-earth/dreammall.earth/backend:latest
+    image: ghcr.io/dreammall-earth/dreammall.earth/backend:${IMAGE_TAG:-latest}
     build:
       context: ./backend
       target: production
@@ -51,16 +51,22 @@ services:
         condition: service_started
       migrations:
         condition: service_completed_successfully
-
     ports:
       - 4000:4000
     environment:
       DATABASE_URL: mysql://root:@database:3306/dreammall.earth
       JWKS_URI: http://authentik:9000/application/o/dreammallearth/jwks/
       NODE_ENV: production
+      BREVO_KEY: ""
+      BREVO_ADMIN_NAME: ""
+      BREVO_ADMIN_EMAIL: ""
+      BREVO_CONTACT_TEMPLATE_ADMIN: "1"
+      BREVO_CONTACT_TEMPLATE_USER: "2"
+      BREVO_NEWSLETTER_TEMPLATE_OPTIN: "3"
+      BREVO_NEWSLETTER_LIST: "3"
 
   migrations:
-    image: ghcr.io/dreammall-earth/dreammall.earth/backend:latest
+    image: ghcr.io/dreammall-earth/dreammall.earth/backend:${IMAGE_TAG:-latest}
     command: npm run db:migrate:deploy
     build:
       context: ./backend