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name: Docker build & push (reusable)
# Reusable workflow that builds the three image targets defined in
# deploy/docker/Dockerfile (backend, worker, frontend) and optionally pushes
# them to the selected registries under the repository owner's namespace.
#
# Called by:
# - docker-dev.yml (tag_mode: dev, push: true) on pushes to dev
# - docker-release.yml (tag_mode: release, push: true) on release tags
# - ci.yml (tag_mode: dev, push: false) on pull requests
on:
workflow_call:
inputs:
push:
description: "Push the built images to the registries"
type: boolean
default: true
tag_mode:
description: "Tagging strategy: 'dev' or 'release'"
type: string
required: true
publish_dockerhub:
description: "Include Docker Hub tags and login when pushing"
type: boolean
default: true
# No permissions block here on purpose: a reusable workflow cannot request more
# than its caller grants, so the token scope is set by each caller
# (docker-dev.yml / docker-release.yml grant packages: write to push; ci.yml
# only needs contents: read for a no-push build).
jobs:
build:
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
include:
- target: backend
image: remnawave-minishop-backend
- target: worker
image: remnawave-minishop-worker
- target: frontend
image: remnawave-minishop-frontend
steps:
- name: Checkout
uses: actions/checkout@v4
with:
# Full history + tags: the Dockerfile's version-builder stage runs
# `git describe --tags` against the copied .git tree.
fetch-depth: 0
- name: Resolve release version
id: version
if: inputs.tag_mode == 'release'
run: |
# On a tag push github.ref_name is the tag (e.g. v3.4.5); for a
# manual workflow_dispatch on a branch, fall back to the latest tag.
if [ "${{ github.ref_type }}" = "tag" ]; then
raw="${{ github.ref_name }}"
else
raw="$(git describe --tags --abbrev=0 2>/dev/null)"
fi
version="${raw#v}"
if [ -z "$version" ]; then
echo "::error::No git tag found to derive the release version from"
exit 1
fi
echo "version=${version}" >> "$GITHUB_OUTPUT"
echo "Release version: ${version}"
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Log in to GitHub Container Registry
if: inputs.push
uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Log in to Docker Hub
if: inputs.push && inputs.publish_dockerhub
uses: docker/login-action@v3
with:
username: ${{ secrets.DOCKERHUB_USERNAME }}
password: ${{ secrets.DOCKERHUB_TOKEN }}
- name: Resolve image namespaces
id: image_namespaces
env:
DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
run: |
github_owner="${{ github.repository_owner }}"
echo "github_owner=${github_owner,,}" >> "$GITHUB_OUTPUT"
dockerhub_owner="${github_owner,,}"
if [ "${{ inputs.push }}" = "true" ] && [ "${{ inputs.publish_dockerhub }}" = "true" ]; then
if [ -z "$DOCKERHUB_USERNAME" ]; then
echo "::error::DOCKERHUB_USERNAME secret is required for Docker Hub publishing"
exit 1
fi
dockerhub_owner="${DOCKERHUB_USERNAME,,}"
fi
echo "dockerhub_owner=$dockerhub_owner" >> "$GITHUB_OUTPUT"
- name: Docker metadata
id: meta
uses: docker/metadata-action@v5
with:
images: |
name=${{ steps.image_namespaces.outputs.dockerhub_owner }}/${{ matrix.image }},enable=${{ inputs.push && inputs.publish_dockerhub }}
name=ghcr.io/${{ steps.image_namespaces.outputs.github_owner }}/${{ matrix.image }},enable=true
tags: |
type=raw,value=dev,enable=${{ inputs.tag_mode == 'dev' }}
type=raw,value=latest,enable=${{ inputs.tag_mode == 'release' }}
type=raw,value=${{ steps.version.outputs.version }},enable=${{ inputs.tag_mode == 'release' }}
- name: Build${{ inputs.push && ' & push' || '' }} ${{ matrix.image }}
uses: docker/build-push-action@v6
with:
context: .
file: deploy/docker/Dockerfile
target: ${{ matrix.target }}
platforms: linux/amd64
push: ${{ inputs.push }}
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
# The Dockerfile's version-builder appends a "-<branch>" suffix to the
# internal version string for non-main builds. Force "main" on release
# (the ref is the tag, not a branch) so release images stay un-suffixed.
build-args: |
GITHUB_REF_NAME=${{ inputs.tag_mode == 'release' && 'main' || github.ref_name }}
REMNAWAVE_MINISHOP_BUILD_PROVENANCE=${{ github.repository == '3252a8/remnawave-minishop' && 'official' || 'custom' }}
cache-from: type=gha,scope=${{ matrix.target }}
cache-to: type=gha,mode=max,scope=${{ matrix.target }}
provenance: false