build: fix container image targets (#1856)

Use stacker to build OCI image.
Use podman/docker to build docker image.

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

.github/workflows/nightly.yaml

@@ -152,3 +152,15 @@ jobs:
           cat /tmp/gc-bench-s3.log
           exit 1
       - uses: ./.github/actions/teardown-localstack
+
+  docker-image:
+    name: Build docker image (for users still using Docker environments)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/clean-runner
+      - name: Check out source code
+        uses: actions/checkout@v4
+      - name: Build image
+        run: |
+          make docker-image

CONTRIBUTING.md

@@ -62,13 +62,13 @@ make exporter-minimal
 ## Using container builds (stacker)
 
 ```
-make binary-stacker
+make oci-image
 ```
 
 ## Using container builds (docker)
 
 ```
-make binary-container
+make docker-image
 ```
 
 # Project Structure

Makefile

@@ -354,8 +354,8 @@ run-container:
 	${CONTAINER_RUNTIME} run --rm --security-opt label=disable -v $$(pwd):/go/src/github.com/project-zot/zot \
 		zot-build:latest
 
-.PHONY: binary-stacker
+.PHONY: oci-image
-binary-stacker: $(STACKER)
+oci-image: $(STACKER)
 	${STACKER} --debug build \
 		-f build/stacker.yaml \
 		--substitute COMMIT=$(COMMIT) \
@@ -364,9 +364,9 @@ binary-stacker: $(STACKER)
 		--substitute RELEASE_TAG=$(RELEASE_TAG) \
 		--substitute REPO_NAME=zot-$(OS)-$(ARCH)
 
-.PHONY: image
+.PHONY: docker-image
-image:
+docker-image:
-	${CONTAINER_RUNTIME} build ${BUILD_ARGS} -f build/Dockerfile -t zot:latest .
+	${CONTAINER_RUNTIME} buildx build --platform $(OS)/$(ARCH) -f build/Dockerfile .
 
 $(BATS):
 	rm -rf bats-core; \
@@ -438,7 +438,7 @@ fuzz-all:
 	bash test/scripts/fuzzAll.sh ${fuzztime}; \
 	rm -rf pkg/storage/testdata; \
 
-$(STACKER):
+$(STACKER): check-linux
 	mkdir -p $(TOOLSDIR)/bin; \
 	curl -fsSL https://github.com/project-stacker/stacker/releases/latest/download/stacker -o $@; \
 	chmod +x $@

build/Dockerfile-conformance

@@ -1,13 +1,17 @@
 # ---
 # Stage 1: Install certs, build binary, create default config file
 # ---
-FROM ghcr.io/project-zot/golang:1.20 AS builder
+FROM --platform=$BUILDPLATFORM ghcr.io/project-zot/golang:1.20 AS builder
+
+ARG TARGETOS
+ARG TARGETARCH
 ARG COMMIT
+
 RUN apt-get update && apt-get install -y git make ca-certificates
 RUN mkdir -p /go/src/github.com/project-zot/zot
 WORKDIR /go/src/github.com/project-zot/zot
 COPY . .
-RUN make COMMIT=$COMMIT clean binary
+RUN make COMMIT=$COMMIT OS=$TARGETOS ARCH=$TARGETARCH clean binary
 RUN echo '# Default config file for zot server\n\
 http:\n\
   address: 0.0.0.0\n\
@@ -21,9 +25,11 @@ storage:\n\
 # Stage 2: Final image with nothing but certs, binary, and default config file
 # ---
 FROM gcr.io/distroless/base AS final
+ARG TARGETOS
+ARG TARGETARCH
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
-COPY --from=builder /go/src/github.com/project-zot/zot/bin/zot-linux-amd64 /usr/bin/zot
+COPY --from=builder /go/src/github.com/project-zot/zot/bin/zot-$TARGETOS-$TARGETARCH /usr/bin/zot
-COPY --from=builder /go/src/github.com/project-zot/zot/config.yaml /etc/zot/config.yaml
+COPY --from=builder /go/src/github.com/project-zot/zot/config.json /etc/zot/config.json
 ENTRYPOINT ["/usr/bin/zot"]
 EXPOSE 5000
 VOLUME ["/var/lib/registry"]

build/Dockerfile-minimal

@@ -1,14 +1,16 @@
 # ---
 # Stage 1: Install certs, build binary, create default config file
 # ---
-FROM ghcr.io/project-zot/golang:1.20 AS builder
+FROM --platform=$BUILDPLATFORM ghcr.io/project-zot/golang:1.20 AS builder
+
+ARG TARGETOS
+ARG TARGETARCH
 ARG COMMIT
-ARG OS
+
-ARG ARCH
 RUN mkdir -p /go/src/github.com/project-zot/zot
 WORKDIR /go/src/github.com/project-zot/zot
 COPY . .
-RUN make COMMIT=$COMMIT OS=$OS ARCH=$ARCH clean binary-minimal
+RUN make COMMIT=$COMMIT OS=$TARGETOS ARCH=$TARGETARCH clean binary-minimal
 RUN echo '{\n\
     "storage": {\n\
         "rootDirectory": "/var/lib/registry"\n\
@@ -26,10 +28,10 @@ RUN echo '{\n\
 # Stage 2: Final image with nothing but certs, binary, and default config file
 # ---
 FROM gcr.io/distroless/base AS final
-ARG OS
+ARG TARGETOS
-ARG ARCH
+ARG TARGETARCH
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
-COPY --from=builder /go/src/github.com/project-zot/zot/bin/zot-$OS-$ARCH-minimal /usr/bin/zot
+COPY --from=builder /go/src/github.com/project-zot/zot/bin/zot-$TARGETOS-$TARGETARCH-minimal /usr/bin/zot
 COPY --from=builder /go/src/github.com/project-zot/zot/config.json /etc/zot/config.json
 ENTRYPOINT ["/usr/bin/zot"]
 EXPOSE 5000

build/Dockerfile-zb

@@ -1,20 +1,22 @@
 # ---
 # Stage 1: Install certs, build binary, create default config file
 # ---
-FROM ghcr.io/project-zot/golang:1.20 AS builder
+FROM --platform=$BUILDPLATFORM ghcr.io/project-zot/golang:1.20 AS builder
+
+ARG TARGETOS
+ARG TARGETARCH
 ARG COMMIT
-ARG OS
+
-ARG ARCH
 RUN mkdir -p /go/src/github.com/project-zot/zot
 WORKDIR /go/src/github.com/project-zot/zot
 COPY . .
-RUN make COMMIT=$COMMIT OS=$OS ARCH=$ARCH clean bench
+RUN make COMMIT=$COMMIT OS=$TARGETOS ARCH=$TARGETARCH clean bench
 
 # ---
 # Stage 2: Final image with nothing but certs, binary, and default config file
 # ---
 FROM gcr.io/distroless/base AS final
-ARG OS
+ARG TARGETOS
-ARG ARCH
+ARG TARGETARCH
-COPY --from=builder /go/src/github.com/project-zot/zot/bin/zb-$OS-$ARCH /usr/bin/zb
+COPY --from=builder /go/src/github.com/project-zot/zot/bin/zb-$TARGETOS-$TARGETARCH /usr/bin/zb
 ENTRYPOINT ["/usr/bin/zb"]

build/Dockerfile-zxp

@@ -1,14 +1,16 @@
 # ---
 # Stage 1: Build binary, create default config file
 # ---
-FROM ghcr.io/project-zot/golang:1.20 AS builder
+FROM --platform=$BUILDPLATFORM ghcr.io/project-zot/golang:1.20 AS builder
+
+ARG TARGETOS
+ARG TARGETARCH
 ARG COMMIT
-ARG OS
+
-ARG ARCH
 RUN mkdir -p /go/src/github.com/project-zot/zot
 WORKDIR /go/src/github.com/project-zot/zot
 COPY . .
-RUN make COMMIT=$COMMIT OS=$OS ARCH=$ARCH clean exporter-minimal
+RUN make COMMIT=$COMMIT OS=$TARGETOS ARCH=$TARGETARCH clean exporter-minimal
 RUN echo '{\n\
     "Server": {\n\
         "protocol": "http",\n\
@@ -27,9 +29,9 @@ RUN echo '{\n\
 # Stage 2: Final image with nothing but binary and default config file
 # ---
 FROM gcr.io/distroless/base AS final
-ARG OS
+ARG TARGETOS
-ARG ARCH
+ARG TARGETARCH
-COPY --from=builder /go/src/github.com/project-zot/zot/bin/zxp-$OS-$ARCH /zxp
+COPY --from=builder /go/src/github.com/project-zot/zot/bin/zxp-$TARGETOS-$TARGETARCH /zxp
 COPY --from=builder /go/src/github.com/project-zot/zot/config.json /etc/zxp/config.json
 ENTRYPOINT ["/zxp"]
 EXPOSE 5001