yggdrasil-go/.github/workflows/docker.yml
Dmitriy Pervin 284894fe40
Add multi-arch Docker build & GHCR publishing (#1278)
# Summary
This PR addresses failures to run Yggdrasil on ARM systems. The root
cause was the lack of ARM artifacts/images, which led to exec format
error and similar issues.

## What’s added:
- ```Dockerfile.multiarch``` — multi-stage Go build that correctly
propagates GOOS/GOARCH for linux/amd64, linux/arm64, linux/armhf and
linux/armel platform.
- ```entrypoint.sh``` - Introduced ENV **ALLOW_IPV6_FORWARDING**. When
set to a truthy value (e.g., true), the entrypoint executes: ```sysctl
-w net.ipv6.conf.all.forwarding=1```.
- GitHub Action for multi-arch builds and publishing to GHCR — triggered
via ```workflow_dispatch```, push to ```master``` and release via tags
(with docker semantic tags e.g. v0.5.12 → 0.5.12, 0.5, 0).

Example published images:

[https://github.com/Forne/yggdrasil-go/pkgs/container/yggdrasil-go](https://github.com/Forne/yggdrasil-go/pkgs/container/yggdrasil-go)

## Testing
 Ubuntu (24.04, amd64) — image runs correctly.
 macOS (Apple Silicon, arm64) — image runs correctly.
 MikroTik RouterOS (arm64) — image runs under the RouterOS container
package.
2025-10-04 10:51:43 +01:00

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YAML

name: Docker Build
on:
workflow_dispatch:
push:
branches: [ main, master ]
tags: [ 'v*' ]
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: true
permissions:
contents: read
packages: write
env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}
jobs:
build-docker:
name: Build Docker Package
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v5
with:
fetch-depth: 0
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Login to GitHub Container Registry
uses: docker/login-action@v3
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Docker metadata
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
tags: |
type=ref,event=tag
type=semver,pattern={{version}}
type=semver,pattern={{major}}.{{minor}}
type=semver,pattern={{major}}
type=sha
- name: Build and push
uses: docker/build-push-action@v6
id: docker_build
with:
context: .
file: ./contrib/docker/Dockerfile.multiarch
platforms: linux/amd64,linux/arm64,linux/armhf,linux/armel
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
provenance: false