Merge pull request #82 from uselagoon/multiarch-image

build: enable multiarch image building

.github/workflows/build_and_publish.yml

@@ -34,14 +34,12 @@ jobs:
         uses: docker/setup-buildx-action@v3
       -
         name: Login to DockerHub
-        if: github.event_name != 'pull_request'
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Login to Docker Hub
-        if: github.event_name != 'pull_request'
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
@@ -52,6 +50,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
-          push: ${{ github.event_name != 'pull_request' }}
+          platforms: linux/amd64,linux/arm64
+          push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -12,7 +12,7 @@ RUN go mod download
 COPY main.go main.go
 
 # Build
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o insights-handler main.go
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=${ARCH} go build -a -o insights-handler main.go
 
 # we pull the trivy binary from aquasec's alpine based image
 FROM aquasec/trivy:0.49.1 as trivy