name: Build & Publish Docker image
# ➊ Triggers – push to main OR new GitHub Release
on:
push:
branches: [main]
release:
types: [published]
jobs:
build-and-push:
runs-on: ubuntu-latest
# ➋ The job needs these repo secrets (add in Settings ▸ Secrets ▸ Actions):
# DOCKERHUB_USERNAME – e.g. 'leonardsellem'
# DOCKERHUB_TOKEN – a Docker Hub access token / password
env:
IMAGE_NAME: ${{ secrets.DOCKERHUB_USERNAME }}/n8n-mcp-server
steps:
- name: Checkout repo
uses: actions/checkout@v4
# ➌ Enable multi-arch builds (amd64 + arm64)
- uses: docker/setup-qemu-action@v3
- uses: docker/setup-buildx-action@v3
# ➍ Log in to Docker Hub
- uses: docker/login-action@v3
with:
username: ${{ secrets.DOCKERHUB_USERNAME }}
password: ${{ secrets.DOCKERHUB_TOKEN }}
# ➎ Generate convenient tags & labels (latest, sha-short, release tag …)
- id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.IMAGE_NAME }}
tags: |
type=sha,format=short
type=ref,event=branch
type=semver,pattern={{version}}
type=raw,value=latest,enable={{is_default_branch}}
# ➏ Build & push
- uses: docker/build-push-action@v5
with:
context: .
push: true
platforms: linux/amd64,linux/arm64
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
# optional build-cache (makes repeated builds faster)
cache-from: type=registry,ref=${{ env.IMAGE_NAME }}:buildcache
cache-to: type=registry,ref=${{ env.IMAGE_NAME }}:buildcache,mode=max
