[ci] Add test for installation in multiple architectures (#597)

Users should be able to install the frequenz-sdk package in amd64 and
arm64 systems. This commit adds a simple test to the CI to validate
this.

The aforementioned test builds a multi-platform docker image with the
generated wheel package. If the image gets successfully generated, then
the test passes.

Additionally the updated docs are published only if this test is passed.

Author: tiyash-basu-frequenz

.github/containers/test-installation/Dockerfile

@@ -0,0 +1,10 @@
+# This dockerfile is used to test the installation of the python package in
+# multiple platforms in the CI. It is not used to build the package itself.
+
+FROM --platform=${TARGETPLATFORM} python:3.11-slim
+
+RUN python -m pip install --upgrade --no-cache-dir pip
+
+COPY dist dist
+RUN pip install dist/*.whl && \
+    rm -rf dist

.github/workflows/ci.yaml

@@ -83,6 +83,31 @@ jobs:
           path: dist/
           if-no-files-found: error
 
+  test-installation:
+    name: Test package installation in different architectures
+    needs: ["build"]
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Fetch sources
+        uses: actions/checkout@v3
+      - name: Download package
+        uses: actions/download-artifact@v3
+        with:
+          name: dist-packages
+          path: dist
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up docker-buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Test Installation
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: .github/containers/test-installation/Dockerfile
+          platforms: linux/amd64,linux/arm64
+          tags: localhost/test-installation
+          push: false
+
   test-docs:
     name: Test documentation website generation
     if: github.event_name != 'push'
@@ -121,7 +146,7 @@ jobs:
 
   publish-docs:
     name: Publish documentation website to GitHub pages
-    needs: ["nox", "build"]
+    needs: ["nox", "test-installation"]
     if: github.event_name == 'push'
     runs-on: ubuntu-20.04
     permissions: