ci/cd: build for arm64 arch

Signed-off-by: Ramkumar Chinchani <rchincha@cisco.com>

.github/workflows/ci-cd.yml

@@ -91,3 +91,20 @@ jobs:
           tags: |
             ghcr.io/${{ github.repository }}-minimal:${{ github.event.release.tag_name }}
             ghcr.io/${{ github.repository }}-minimal:latest
+      - name: Build container image (arm64)
+        uses: docker/build-push-action@v2
+        with:
+          build-args: ARCH=arm64
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository }}-arm64:${{ github.event.release.tag_name }}
+            ghcr.io/${{ github.repository }}-arm64:latest
+      - name: Build minimal container image (arm64)
+        uses: docker/build-push-action@v2
+        with:
+          build-args: ARCH=arm64
+          push: true
+          file: Dockerfile-minimal
+          tags: |
+            ghcr.io/${{ github.repository }}-arm64-minimal:${{ github.event.release.tag_name }}
+            ghcr.io/${{ github.repository }}-arm64-minimal:latest

Dockerfile

@@ -5,7 +5,7 @@ FROM docker.io/golang:1.16 AS builder
 RUN mkdir -p /go/src/github.com/anuvu/zot
 WORKDIR /go/src/github.com/anuvu/zot
 COPY . .
-RUN CGO_ENABLED=0 make clean binary
+RUN make clean binary
 RUN echo '{\n\
     "storage": {\n\
         "rootDirectory": "/var/lib/registry"\n\

Dockerfile-arch

@@ -0,0 +1,33 @@
+# ---
+# Stage 1: Install certs, build binary, create default config file
+# ---
+FROM docker.io/golang:1.16 AS builder
+ARG ARCH
+RUN mkdir -p /go/src/github.com/anuvu/zot
+WORKDIR /go/src/github.com/anuvu/zot
+COPY . .
+RUN make ARCH=$ARCH clean binary
+RUN echo '{\n\
+    "storage": {\n\
+        "rootDirectory": "/var/lib/registry"\n\
+    },\n\
+    "http": {\n\
+        "address": "0.0.0.0",\n\
+        "port": "5000"\n\
+    },\n\
+    "log": {\n\
+        "level": "debug"\n\
+    }\n\
+}\n' > config.json && cat config.json
+
+# ---
+# Stage 2: Final image with nothing but certs, binary, and default config file
+# ---
+FROM scratch AS final
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=builder /go/src/github.com/anuvu/zot/bin/zot /usr/bin/zot
+COPY --from=builder /go/src/github.com/anuvu/zot/config.json /etc/zot/config.json
+ENTRYPOINT ["/usr/bin/zot"]
+EXPOSE 5000
+VOLUME ["/var/lib/registry"]
+CMD ["serve", "/etc/zot/config.json"]

Dockerfile-arch-minimal

@@ -0,0 +1,33 @@
+# ---
+# Stage 1: Install certs, build binary, create default config file
+# ---
+FROM docker.io/golang:1.16 AS builder
+ARG ARCH
+RUN mkdir -p /go/src/github.com/anuvu/zot
+WORKDIR /go/src/github.com/anuvu/zot
+COPY . .
+RUN make ARCH=$ARCH clean binary-minimal
+RUN echo '{\n\
+    "storage": {\n\
+        "rootDirectory": "/var/lib/registry"\n\
+    },\n\
+    "http": {\n\
+        "address": "0.0.0.0",\n\
+        "port": "5000"\n\
+    },\n\
+    "log": {\n\
+        "level": "debug"\n\
+    }\n\
+}\n' > config.json && cat config.json
+
+# ---
+# Stage 2: Final image with nothing but certs, binary, and default config file
+# ---
+FROM scratch AS final
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=builder /go/src/github.com/anuvu/zot/bin/zot-minimal /usr/bin/zot
+COPY --from=builder /go/src/github.com/anuvu/zot/config.json /etc/zot/config.json
+ENTRYPOINT ["/usr/bin/zot"]
+EXPOSE 5000
+VOLUME ["/var/lib/registry"]
+CMD ["serve", "/etc/zot/config.json"]

Dockerfile-conformance

@@ -6,7 +6,7 @@ RUN apk --update add git make ca-certificates
 RUN mkdir -p /go/src/github.com/anuvu/zot
 WORKDIR /go/src/github.com/anuvu/zot
 COPY . .
-RUN CGO_ENABLED=0 make clean binary
+RUN make clean binary
 RUN echo -e '# Default config file for zot server\n\
 http:\n\
   address: 0.0.0.0\n\

Dockerfile-minimal

@@ -5,7 +5,7 @@ FROM docker.io/golang:1.16 AS builder
 RUN mkdir -p /go/src/github.com/anuvu/zot
 WORKDIR /go/src/github.com/anuvu/zot
 COPY . .
-RUN CGO_ENABLED=0 make clean binary-minimal
+RUN make clean binary-minimal
 RUN echo '{\n\
     "storage": {\n\
         "rootDirectory": "/var/lib/registry"\n\

Makefile

@@ -7,25 +7,27 @@ CONTAINER_RUNTIME := $(shell command -v podman 2> /dev/null || echo docker)
 PATH := bin:$(PATH)
 TMPDIR := $(shell mktemp -d)
 STACKER := $(shell which stacker)
+OS ?= linux
+ARCH ?= amd64
 
 .PHONY: all
 all: swagger binary binary-minimal exporter-minimal debug test test-clean check
 
 .PHONY: binary-minimal
 binary-minimal: swagger
-	go build -o bin/zot-minimal -tags minimal,containers_image_openpgp -v -trimpath -ldflags "-X  github.com/anuvu/zot/pkg/api/config.Commit=${COMMIT} -X github.com/anuvu/zot/pkg/api/config.BinaryType=minimal -X github.com/anuvu/zot/pkg/api/config.GoVersion=${GO_VERSION}" ./cmd/zot
+	env CGO_ENABLED=0 GOOS=$(OS) GOARCH=$(ARCH) go build -o bin/zot-minimal -tags minimal,containers_image_openpgp -v -trimpath -ldflags "-X  github.com/anuvu/zot/pkg/api/config.Commit=${COMMIT} -X github.com/anuvu/zot/pkg/api/config.BinaryType=minimal -X github.com/anuvu/zot/pkg/api/config.GoVersion=${GO_VERSION} -s -w" ./cmd/zot
 
 .PHONY: binary
 binary: swagger
-	go build -o bin/zot -tags extended,containers_image_openpgp -v -trimpath -ldflags "-X  github.com/anuvu/zot/pkg/api/config.Commit=${COMMIT} -X github.com/anuvu/zot/pkg/api/config.BinaryType=extended -X github.com/anuvu/zot/pkg/api/config.GoVersion=${GO_VERSION}" ./cmd/zot
+	env CGO_ENABLED=0 GOOS=$(OS) GOARCH=$(ARCH) go build -o bin/zot -tags extended,containers_image_openpgp -v -trimpath -ldflags "-X  github.com/anuvu/zot/pkg/api/config.Commit=${COMMIT} -X github.com/anuvu/zot/pkg/api/config.BinaryType=extended -X github.com/anuvu/zot/pkg/api/config.GoVersion=${GO_VERSION} -s -w" ./cmd/zot
 
 .PHONY: debug
 debug: swagger
-	go build -o bin/zot-debug -tags extended,containers_image_openpgp -v -gcflags all='-N -l' -ldflags "-X  github.com/anuvu/zot/pkg/api/config.Commit=${COMMIT} -X github.com/anuvu/zot/pkg/api/config.BinaryType=extended -X github.com/anuvu/zot/pkg/api/config.GoVersion=${GO_VERSION}" ./cmd/zot
+	env CGO_ENABLED=0 GOOS=$(OS) GOARCH=$(ARCH) go build -o bin/zot-debug -tags extended,containers_image_openpgp -v -gcflags all='-N -l' -ldflags "-X  github.com/anuvu/zot/pkg/api/config.Commit=${COMMIT} -X github.com/anuvu/zot/pkg/api/config.BinaryType=extended -X github.com/anuvu/zot/pkg/api/config.GoVersion=${GO_VERSION}" ./cmd/zot
 
 .PHONY: exporter-minimal
 exporter-minimal: swagger
-	go build -o bin/zot-exporter -tags minimal,containers_image_openpgp -v -trimpath ./cmd/exporter
+	env CGO_ENABLED=0 GOOS=$(OS) GOARCH=$(ARCH) go build -o bin/zot-exporter -tags minimal,containers_image_openpgp -v -trimpath ./cmd/exporter
 
 .PHONY: test
 test: