Leverage buildx to generate binaries in parallel

Signed-off-by: Utsav Anand <[email protected]>

Author: utsavanand2

Dockerfile.redist

@@ -24,30 +24,38 @@ RUN test -z "$(gofmt -l $(find . -type f -name '*.go' -not -path "./vendor/*"))"
 # ldflags -X injects commit version into binary
 
 RUN /usr/bin/license-check -path ./ --verbose=false "Alex Ellis" "OpenFaaS Author(s)" \
-       && go test $(go list ./... | grep -v /vendor/ | grep -v /template/|grep -v /build/) -cover \
-       && VERSION=$(git describe --all --exact-match `git rev-parse HEAD` | grep tags | sed 's/tags\///') \
-       && GIT_COMMIT=$(git rev-list -1 HEAD) \
-       && CGO_ENABLED=0 GOOS=linux go build --ldflags "-s -w \
+       && go test $(go list ./... | grep -v /vendor/ | grep -v /template/|grep -v /build/) -cover
+
+FROM builder as linux
+RUN CGO_ENABLED=0 GOOS=linux go build --ldflags "-s -w \
        -X github.com/openfaas/faas-cli/version.GitCommit=${GIT_COMMIT} \
        -X github.com/openfaas/faas-cli/version.Version=${VERSION} \
        -X github.com/openfaas/faas-cli/commands.Platform=x86_64" \
-       -a -installsuffix cgo -o faas-cli \
-       && CGO_ENABLED=0 GOOS=darwin go build --ldflags "-s -w \
+       -a -installsuffix cgo -o faas-cli
+
+FROM builder as darwin
+RUN CGO_ENABLED=0 GOOS=darwin go build --ldflags "-s -w \
        -X github.com/openfaas/faas-cli/version.GitCommit=${GIT_COMMIT} \
        -X github.com/openfaas/faas-cli/version.Version=${VERSION} \
        -X github.com/openfaas/faas-cli/commands.Platform=x86_64" \
-       -a -installsuffix cgo -o faas-cli-darwin \
-       && CGO_ENABLED=0 GOOS=windows go build --ldflags "-s -w \
+       -a -installsuffix cgo -o faas-cli-darwin
+
+FROM builder as windows
+RUN CGO_ENABLED=0 GOOS=windows go build --ldflags "-s -w \
        -X github.com/openfaas/faas-cli/version.GitCommit=${GIT_COMMIT} \
        -X github.com/openfaas/faas-cli/version.Version=${VERSION} \
        -X github.com/openfaas/faas-cli/commands.Platform=x86_64" \
-       -a -installsuffix cgo -o faas-cli.exe \
-       && CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=6 go build --ldflags "-s -w \
+       -a -installsuffix cgo -o faas-cli.exe
+
+FROM builder as arm
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=6 go build --ldflags "-s -w \
        -X github.com/openfaas/faas-cli/version.GitCommit=${GIT_COMMIT} \
        -X github.com/openfaas/faas-cli/version.Version=${VERSION} \
        -X github.com/openfaas/faas-cli/commands.Platform=armhf" \
-       -a -installsuffix cgo -o faas-cli-armhf \
-       && CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build --ldflags "-s -w \
+       -a -installsuffix cgo -o faas-cli-armhf
+
+FROM builder as arm64
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build --ldflags "-s -w \
        -X github.com/openfaas/faas-cli/version.GitCommit=${GIT_COMMIT} \
        -X github.com/openfaas/faas-cli/version.Version=${VERSION} \
        -X github.com/openfaas/faas-cli/commands.Platform=arm64" \
@@ -64,11 +72,11 @@ RUN addgroup -S app \
 
 WORKDIR /home/app
 
-COPY --from=builder /go/src/github.com/openfaas/faas-cli/faas-cli                .
-COPY --from=builder /go/src/github.com/openfaas/faas-cli/faas-cli-darwin         .
-COPY --from=builder /go/src/github.com/openfaas/faas-cli/faas-cli-armhf          .
-COPY --from=builder /go/src/github.com/openfaas/faas-cli/faas-cli.exe            .
-COPY --from=builder /go/src/github.com/openfaas/faas-cli/faas-cli-arm64          .
+COPY --from=linux    /go/src/github.com/openfaas/faas-cli/faas-cli                .
+COPY --from=darwin   /go/src/github.com/openfaas/faas-cli/faas-cli-darwin         .
+COPY --from=arm      /go/src/github.com/openfaas/faas-cli/faas-cli-armhf          .
+COPY --from=windows  /go/src/github.com/openfaas/faas-cli/faas-cli.exe            .
+COPY --from=arm64    /go/src/github.com/openfaas/faas-cli/faas-cli-arm64          .
 
 RUN chown -R app:app ./