Add cokerfile / publishing of image

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <[email protected]>

.github/workflows/publish.yml

@@ -28,3 +28,27 @@ jobs:
           GITHUB_TOKEN: ${{ github.token }}
         with:
           asset_paths: '["./bin/mixctl*"]'
+
+  publish_docker:
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@master
+        with:
+          fetch-depth: 1
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to Docker Registry
+        uses: docker/login-action@v1
+        with:
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+          registry: ghcr.io
+      - name: Publish plugin
+        run: |
+          SERVER=ghcr.io OWNER=inlets TAG=${{ github.sha }} make publish
+          SERVER=ghcr.io OWNER=inlets TAG=latest make publish

Dockerfile

@@ -0,0 +1,33 @@
+FROM --platform=${BUILDPLATFORM:-linux/amd64} golang:1.19 as builder
+
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+ARG TARGETOS
+ARG TARGETARCH
+
+ARG GIT_COMMIT
+ARG VERSION
+
+ENV GO111MODULE=on
+ENV GOFLAGS=-mod=vendor
+ENV CGO_ENABLED=0
+
+WORKDIR /usr/bin/
+
+WORKDIR /go/src/github.com/inlets/mixctl
+COPY . .
+
+# Run a gofmt and exclude all vendored code.
+RUN test -z "$(gofmt -l $(find . -type f -name '*.go' -not -path "./vendor/*"))" || { echo "Run \"gofmt -s -w\" on your Golang code"; exit 1; }
+
+RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} CGO_ENABLED=0 \
+    go build --ldflags "-s -w \
+    -X github.com/inlets/mixctl/version.GitCommit=${GIT_COMMIT} \
+    -X github.com/inlets/mixctl/version.Version=${VERSION} \
+    -X github.com/inlets/mixctl/version.Platform=${TARGETARCH}" \
+    -a -installsuffix netgo -o /usr/bin/mixctl
+
+FROM --platform=${TARGETPLATFORM:-linux/amd64} scratch as release
+COPY --from=builder /usr/bin/mixctl /
+
+ENTRYPOINT ["/mixctl"]

Makefile

@@ -5,6 +5,24 @@ PLATFORM := $(shell ./hack/platform-tag.sh)
 SOURCE_DIRS = main.go
 export GO111MODULE=on
 
+IMG_NAME?=mixctl
+TAG?=latest
+OWNER?=alexellis2
+SERVER?=docker.io
+
+.PHONY: publish
+publish:
+	@echo  $(SERVER)/$(OWNER)/$(IMG_NAME):$(TAG) && \
+	docker buildx create --use --name=multiarch --node=multiarch && \
+	docker buildx build \
+		--platform linux/amd64,linux/arm/v7,linux/arm64,darwin/amd64,darwin/arm64 \
+		--push=true \
+        --build-arg GIT_COMMIT=$(GIT_COMMIT) \
+        --build-arg VERSION=$(VERSION) \
+		--tag $(SERVER)/$(OWNER)/$(IMG_NAME):$(TAG) \
+		--no-cache \
+		.
+
 .PHONY: all
 all: gofmt test build dist hash
 
@@ -23,12 +41,12 @@ test:
 .PHONY: dist
 dist:
 	mkdir -p bin
-	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags $(LDFLAGS) -a -installsuffix cgo -o bin/mixctl
-	CGO_ENABLED=0 GOOS=darwin go build -ldflags $(LDFLAGS) -a -installsuffix cgo -o bin/mixctl-darwin
-	CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -a -ldflags $(LDFLAGS) -installsuffix cgo -o bin/mixctl-darwin-arm64
-	CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=6 go build -ldflags $(LDFLAGS) -a -installsuffix cgo -o bin/mixctl-armhf
-	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags $(LDFLAGS) -a -installsuffix cgo -o bin/mixctl-arm64
-	CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags $(LDFLAGS) -a -installsuffix cgo -o bin/mixctl.exe
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags $(LDFLAGS) -a -installsuffix netgo -o bin/mixctl
+	CGO_ENABLED=0 GOOS=darwin go build -ldflags $(LDFLAGS) -a -installsuffix netgo -o bin/mixctl-darwin
+	CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -a -ldflags $(LDFLAGS) -installsuffix netgo -o bin/mixctl-darwin-arm64
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=6 go build -ldflags $(LDFLAGS) -a -installsuffix netgo -o bin/mixctl-armhf
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags $(LDFLAGS) -a -installsuffix netgo -o bin/mixctl-arm64
+	CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags $(LDFLAGS) -a -installsuffix netgo -o bin/mixctl.exe
 
 .PHONY: hash
 hash: