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Create docker.yml workflow for automated image building
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tenekev authored and DavidLazarescu committed Dec 26, 2023
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98 changes: 98 additions & 0 deletions .github/workflows/docker.yml
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name: Docker

on:
workflow_dispatch:
push:
branches: [main]
pull_request:
branches: [main]
release:
types: [published]

concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: true

permissions:
packages: write

jobs:
build_and_push:
name: Build and Push
runs-on: ubuntu-latest
strategy:
# Prevent a failure in one image from stopping the other builds
fail-fast: false
matrix:
include:
- context: "."
file: "Dockerfile"
image: "librum-server"
# ARM not working. Needs further research.
# platforms: "linux/arm64,linux/amd64"
platforms: "linux/amd64"

steps:
- name: Checkout
uses: actions/checkout@v4

- name: Set up QEMU
uses: docker/[email protected]

- name: Set up Docker Buildx
uses: docker/[email protected]
# Workaround to fix error:
# failed to push: failed to copy: io: read/write on closed pipe
# See https://github.com/docker/build-push-action/issues/761
with:
driver-opts: |
image=moby/buildkit:v0.10.6
- name: Login to GitHub Container Registry
uses: docker/login-action@v3
# Skip when PR from a fork
if: ${{ !github.event.pull_request.head.repo.fork }}
with:
registry: ghcr.io
username: ${{ github.repository_owner }}
password: ${{ secrets.GITHUB_TOKEN }}

- name: Generate docker image tags
id: metadata
uses: docker/metadata-action@v5
with:
flavor: |
latest=true
images: |
name=ghcr.io/${{ github.repository_owner }}/${{matrix.image}}
tags: |
# Tag with branch name
type=ref,event=branch
# Tag with pr-number
type=ref,event=pr
# Tag with git tag on release
type=ref,event=tag
type=raw,value=release,enable=${{ github.event_name == 'release' }}
- name: Determine build cache output
id: cache-target
run: |
if [[ "${{ github.event_name }}" == "pull_request" ]]; then
# Essentially just ignore the cache output (PR can't write to registry cache)
echo "cache-to=type=local,dest=/tmp/discard,ignore-error=true" >> $GITHUB_OUTPUT
else
echo "cache-to=type=registry,mode=max,ref=ghcr.io/${{ github.repository_owner }}/librum-build-cache:${{ matrix.image }}" >> $GITHUB_OUTPUT
fi
- name: Build and push image
uses: docker/[email protected]
with:
context: ${{ matrix.context }}
file: ${{ matrix.file }}
platforms: ${{ matrix.platforms }}
# Skip pushing when PR from a fork
push: ${{ !github.event.pull_request.head.repo.fork }}
cache-from: type=registry,ref=ghcr.io/${{ github.repository_owner }}/librum-build-cache:${{matrix.image}}
cache-to: ${{ steps.cache-target.outputs.cache-to }}
tags: ${{ steps.metadata.outputs.tags }}
labels: ${{ steps.metadata.outputs.labels }}

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