platform: linux/amd64

Author: simonw

docker/docker-compose-for-django-development.md

@@ -31,6 +31,7 @@ services:
       POSTGRES_PASSWORD: postgres
   web:
     container_name: myapp
+    platform: linux/amd64
     build:
       context: .
       dockerfile: Dockerfile.dev
@@ -46,6 +47,7 @@ services:
       - migrations
       - database
   migrations:
+    platform: linux/amd64
     build:
       context: .
       dockerfile: Dockerfile.dev
@@ -63,6 +65,8 @@ The `web` container runs the Django development server, built using the custom `
 
 The `migrations` container simply runs the apps migrations and then terminates - with `depends_on` used to ensure that migrations run after the hdatabase server starts and before the web server.
 
+Both `web` and `migrations` include a `platform: linux/amd64` property - this ensures they will work on M1 Macs even if the Python dependencies are not yet easily compiled for that architecture, see [Running Docker on an M1 Mac](https://til.simonwillison.net/macos/running-docker-on-remote-m1).
+
 The `container_name: myapp` field on the `web` container is a convenience which means you can later run commands like this:
 
     docker exec -it myapp ./manage.py collectstatic