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Merge pull request #7 from jr200/feature/minimise_image #4

Merge pull request #7 from jr200/feature/minimise_image

Merge pull request #7 from jr200/feature/minimise_image #4

name: build-docker-image-multiplatform
on:
push:
tags:
- v*.*.*
workflow_dispatch:
inputs:
tag:
description: docker-image-tag
required: false
type: string
default: dev
platforms:
description: platform-filter-json
required: false
type: string
default: |-
[ "linux/amd64" ]
env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}
REGISTRY_IMAGE: ghcr.io/${{ github.repository }}
DEFAULT_UNIVERSE: |-
[
{"platform": "linux/amd64", "os": "linux", "build-os": "ubuntu-latest"},
{"platform": "linux/arm64", "os": "linux", "build-os": "ubuntu-latest"}
]
jobs:
setup-matrix:
runs-on: ubuntu-latest
outputs:
matrix: ${{ steps.create-matrix.outputs.matrix }}
steps:
- name: Determine Platforms
id: create-matrix
run: |
platforms='${{ inputs.platforms }}'
default_universe='${{ env.DEFAULT_UNIVERSE }}'
echo "input filtered_platforms: $platforms"
echo "input default_universe: $default_universe"
if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
echo "filtering matrix using workflow_dispatch arguments"
result_matrix=$(echo "$default_universe" | jq -c --argjson platforms "$platforms" '[.[] | select($platforms[] == .platform)]')
else
echo "matrix filtering skipped"
result_matrix=$(echo "$default_universe" | jq -c)
fi
echo set-matrix: $result_matrix
echo "matrix=$result_matrix" >> $GITHUB_OUTPUT
build:
name: Build ${{ matrix.platform }} Image
needs: setup-matrix
runs-on: ${{ matrix.build-os }}
strategy:
fail-fast: false
matrix:
include: ${{ fromJson(needs.setup-matrix.outputs.matrix) }}
permissions:
contents: read
packages: write
steps:
- name: Prepare
run: |
platform=${{ matrix.platform }}
echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
- uses: actions/checkout@v4
with:
fetch-depth: 0
- name: Set up QEMU
uses: docker/setup-qemu-action@v3
- name: Extract Docker metadata
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.REGISTRY_IMAGE }}
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Log into registry ${{ env.REGISTRY }}
uses: docker/login-action@v3
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Build and push Docker image
id: build-and-push
uses: docker/build-push-action@v6
with:
platforms: ${{ matrix.platform }}
labels: ${{ steps.meta.outputs.labels }}
outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true
file: docker/Dockerfile
context: .
provenance: false
# tags: ${{ steps.meta.outputs.tags }}
cache-from: type=gha
cache-to: type=gha,mode=max
build-args: |
GOOS=${{ matrix.os }}
GOARCH=${{ matrix.architecture }}
- name: Export digest
run: |
mkdir -p /tmp/digests
digest="${{ steps.build-and-push.outputs.digest }}"
touch "/tmp/digests/${digest#sha256:}"
- name: Upload digest
uses: actions/upload-artifact@v4
with:
name: digests-${{ env.PLATFORM_PAIR }}
path: /tmp/digests/*
if-no-files-found: error
retention-days: 1
merge:
name: Merge platform specific Docker image into multi platform image
runs-on: ubuntu-latest
needs:
- build
permissions:
contents: write
packages: write
steps:
- name: Download digests
uses: actions/download-artifact@v4
with:
path: /tmp/digests
pattern: digests-*
merge-multiple: true
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Docker meta
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.REGISTRY_IMAGE }}
- name: Login to Docker Hub
uses: docker/login-action@v3
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Set version or sha for Docker tag
id: set-version
run: |
if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
if [ -z "${{ github.event.inputs.tag }}" ]; then
echo "tag=${GITHUB_SHA}" >> $GITHUB_ENV
else
echo "tag=${{ github.event.inputs.tag }}" >> $GITHUB_ENV
fi
else
echo "tag=${{ steps.meta.outputs.version }}" >> $GITHUB_ENV
fi
- name: Create manifest list and push
working-directory: /tmp/digests
run: |
docker buildx imagetools create -t ${{ env.REGISTRY_IMAGE }}:${{ env.tag }} $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)
- name: Inspect image
run: |
docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ env.tag }}
- name: Repository Dispatch
uses: peter-evans/repository-dispatch@v3
if: github.event_name != 'workflow_dispatch'
with:
token: ${{ secrets.GITHUB_TOKEN }}
event-type: build-image-success
client-payload: |-
{
"ref": "${{ github.ref }}",
"sha": "${{ github.sha }}",
"tag": "${{ env.tag }}",
"artifacts": "${{ env.REGISTRY_IMAGE }}:${{ env.tag }}"
}