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Merged
chlins merged 1 commit into from
Aug 13, 2026
+56 −0
Merged

feat(build): publish multi-arch container image to GHCR on release #631

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37 changes: 37 additions & 0 deletions .github/workflows/release.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -130,6 +130,43 @@ jobs:
name: modctl-${{ matrix.goos }}-${{ matrix.goarch }}
path: dist/

publish-image:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
steps:
- name: Checkout code
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v4.3.1

- name: Extract short commit
id: vars
run: echo "commit=$(git rev-parse --short HEAD)" >> "$GITHUB_OUTPUT"

- name: Set up Docker Buildx
uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c # v4.2.0

- name: Login to GitHub Container Registry
uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}

- name: Build and push image
uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
with:
context: .
file: ./build/Dockerfile
push: true
platforms: linux/amd64,linux/arm64
build-args: |
GITVERSION=${{ github.ref_name }}
GITCOMMIT=${{ steps.vars.outputs.commit }}
tags: |
ghcr.io/${{ github.repository }}:${{ github.ref_name }}
ghcr.io/${{ github.repository }}:latest

@chlins chlins Aug 13, 2026

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Follow-up on the tags: every v* tag currently overwrites :latest, so a patch on an older minor or a pre-release tag (e.g. v2.0.0-rc1) would clobber it. Might be worth adopting docker/metadata-action with semver patterns in a follow-up, which handles this by default. @stevapple


create-release:
needs: release
runs-on: ubuntu-latest
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19 changes: 19 additions & 0 deletions build/Dockerfile
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@@ -0,0 +1,19 @@
# syntax=docker/dockerfile:1

FROM --platform=$BUILDPLATFORM golang:1.25 AS builder
ARG TARGETOS
ARG TARGETARCH
ARG GITVERSION=unknown
ARG GITCOMMIT=unknown
WORKDIR /app
COPY . .
RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build \
-ldflags "-w -X github.com/modelpack/modctl/pkg/version.GitVersion=${GITVERSION} \
-X github.com/modelpack/modctl/pkg/version.GitCommit=${GITCOMMIT} \
-X github.com/modelpack/modctl/pkg/version.BuildTime=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" \
-o modctl \
main.go

FROM gcr.io/distroless/static-debian13:nonroot
COPY --from=builder /app/modctl /usr/local/bin/modctl
ENTRYPOINT ["/usr/local/bin/modctl"]