Build mac arm64 binary

Signed-off-by: Stefan Scherer <stefan.scherer@docker.com>

Author: StefanScherer

.github/workflows/release-weekly-build.yml

@@ -75,6 +75,10 @@ jobs:
           E2E_HUB_TOKEN: ${{ secrets.E2E_HUB_TOKEN }}
         run: make TAG_NAME=${{ github.event.inputs.tag }} -f builder.Makefile build test-unit e2e
 
+      - name: Build Mac arm64 binary
+        if: ${{ matrix.os == 'macos-latest' }}
+        run: make TAG_NAME=${{ github.event.inputs.tag }} -f builder.Makefile build-mac-arm64
+
       - name: Upload binary artifact
         if: ${{ github.event.inputs.tag != '' }} # don't push artifacts if no tag is specified
         uses: actions/upload-artifact@v2

builder.Makefile

@@ -60,8 +60,13 @@ test-unit:
 cross:
 	GOOS=linux   GOARCH=amd64 $(GO_BUILD) -o dist/docker-scan_linux_amd64 ./cmd/docker-scan
 	GOOS=darwin  GOARCH=amd64 $(GO_BUILD) -o dist/docker-scan_darwin_amd64 ./cmd/docker-scan
+	GOOS=darwin  GOARCH=arm64 $(GO_BUILD) -o dist/docker-scan_darwin_arm64 ./cmd/docker-scan
 	GOOS=windows GOARCH=amd64 $(GO_BUILD) -o dist/docker-scan_windows_amd64.exe ./cmd/docker-scan
 
+build-mac-arm64:
+	mkdir -p bin
+	GOOS=darwin GOARCH=arm64 $(GO_BUILD) -o bin/docker-scan_darwin_arm64 ./cmd/docker-scan
+
 .PHONY: build
 build:
 	mkdir -p bin