buildx to ECR

buildx

          docker context create build
          docker buildx create --use build --driver=docker-container
          docker buildx build \
            --cache-to type=gha,token=${{ secrets.GITHUB_TOKEN }} \
            --cache-from type=gha,token=${{ secrets.GITHUB_TOKEN }} \
            --platform=linux/amd64,linux/arm64 \
            --build-arg TERRAGRUNT_VERSION=${{ env.TERRAGRUNT_VERSION }} \
            --build-arg TERRAFORM_VERSION=${{ env.TERRAFORM_VERSION }} \
            -t $REGISTRY/$REPOSITORY_AND_TAG \
            -f container-images/$DOCKERFILE \
            -o type=oci,dest=- container-images | gzip > ${{ matrix.name }}.tar.gz

Some other step...

      - name: Push Container Image to ECR
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        env:
          TAG: ${{ steps.build.outputs.tag }}
        run: |
          cat ${{ matrix.name }}.tar.gz | docker import ${{ matrix.import_flags }} - $TAG
          docker push $TAG

Just a random example that came up on SweetOps office hours