Build against both amd64 and arm64 architectures

2 files changed, 5 insertions, 7 deletions

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f424eff..4918327 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,12 +21,9 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v2
 
-      # The current version (v2) of Docker's build-push action uses
-      # buildx, which comes with BuildKit features that help us speed
-      # up our builds using additional cache features. Buildx also
-      # has a lot of other features that are not as relevant to us.
-      #
-      # See https://github.com/docker/build-push-action
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
 
@@ -46,6 +43,7 @@ jobs:
           context: .
           file: ./Dockerfile
           push: true
+          platforms: linux/amd64,linux/arm64
           cache-from: type=registry,ref=ghcr.io/owl-corp/python-poetry-base:${{ matrix.python_version }}
           cache-to: type=inline
           tags: |
diff --git a/Dockerfile b/Dockerfile
index 606a5d5..8dda871 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 ARG python_version=3.11-slim
 
-FROM --platform=linux/amd64 python:$python_version
+FROM python:$python_version
 
 # POETRY_VIRTUALENVS_IN_PROJECT is required to ensure in-projects venvs mounted from the host in dev
 # don't get prioritised by `poetry run`