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docker.yml
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# GitHub actions workflow which builds and publishes the docker images.
name: Build docker images
on:
push:
tags: ["v*"]
branches: [ master, main, develop ]
workflow_dispatch:
permissions:
contents: read
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up QEMU
id: qemu
uses: docker/setup-qemu-action@v1
with:
platforms: arm64
- name: Set up Docker Buildx
id: buildx
uses: docker/setup-buildx-action@v1
- name: Inspect builder
run: docker buildx inspect
# copy from https://github.com/matrix-org/synapse/blob/96e0cdbc5af0563ee805ec4e588e1df14899af66/.github/workflows/docker.yml#L39-L56
- name: Calculate docker image tag old
id: set-tag-old
run: |
case "${GITHUB_REF}" in
refs/heads/develop)
tag=develop
;;
refs/heads/master|refs/heads/main)
tag=latest
;;
refs/tags/*)
tag=${GITHUB_REF#refs/tags/}
;;
*)
tag=${GITHUB_SHA}
;;
esac
echo "::set-output name=tag::$tag"
# copy from https://github.com/henryclw/synapse/blob/57f4421ceb2d649da75c2e7c46c53220b7350716/.github/workflows/docker.yml#L37-L50
- name: Calculate docker image tag new
id: set-tag-new
uses: docker/metadata-action@master
with:
images: matrixdotorg/synapse
flavor: |
latest=false
tags: |
type=pep440,pattern={{raw}}
type=raw,value=develop,enable=${{ github.ref == format('refs/heads/{0}', 'develop') }}
type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'master') }}
type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }}
- name: Echo different output of set-tag
run: echo "The old set-tag output is matrixdotorg/synapse:${{ steps.set-tag-old.outputs.tag }} \n The new set-tag output is ${{ steps.set-tag-new.outputs.tags }}"
- name: Build and run docker container
run: docker build -t "${{ steps.set-tag-new.outputs.tags }}" . && docker run --name dummy_docker "${{ steps.set-tag-new.outputs.tags }}"