fix: kcl arm64 docker image release

Signed-off-by: peefy <[email protected]>

Author: Peefy

.github/workflows/release.yaml

@@ -42,7 +42,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
-          platforms: linux/amd64,linux/arm64
+          platforms: linux/amd64
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
@@ -76,6 +76,11 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
+      - name: Edit arm64 arch for Dockerfile
+        run: |
+          sed -i 's/ubuntu:22.04/arm64v8\/ubuntu:20.04/g' Dockerfile
+          echo "ENV KCL_FAST_EVAL=1" >> Dockerfile
+
       - name: Extract metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v5
@@ -85,7 +90,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
-          platforms: linux/amd64,linux/arm64
+          platforms: linux/arm64
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -1,7 +1,15 @@
 FROM --platform=${BUILDPLATFORM} golang:1.21 AS build
 COPY / /src
 WORKDIR /src
-RUN --mount=type=cache,target=/go/pkg --mount=type=cache,target=/root/.cache/go-build make build
+
+# The TARGETOS and TARGETARCH args are set by docker. We set GOOS and GOARCH to
+# these values to ask Go to compile a binary for these architectures. If
+# TARGETOS and TARGETOS are different from BUILDPLATFORM, Go will cross compile
+# for us (e.g. compile a linux/amd64 binary on a linux/arm64 build machine).
+ARG TARGETOS
+ARG TARGETARCH
+
+RUN --mount=type=cache,target=/go/pkg --mount=type=cache,target=/root/.cache/go-build GOOS=${TARGETOS} GOARCH=${TARGETARCH} make build
 
 FROM --platform=${BUILDPLATFORM} ubuntu:22.04 AS base
 ENV LANG=en_US.utf8