chore: run ci, don't merge me #64496
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name: GitHub Codespaces image build | |
# Run only on master branch. We could also build on branch but this seems like | |
# an optimization that can be done as and when desired. The main use case we're | |
# handling is creating and working off a branch from master, so it doesn't seem | |
# like an immediate requirement to have branches as well. | |
# | |
# NOTE: the job is setup to also push branch images as well, and using branch | |
# and master as caching, so if we want to add the optimisation for branches we | |
# can just remove the master branch restriction. | |
on: | |
push: | |
branches: | |
- master | |
pull_request: | |
types: | |
- opened | |
- labeled | |
- synchronize | |
jobs: | |
build: | |
name: Build Codespaces image | |
runs-on: ubuntu-latest | |
# Build on master and PRs with the label 'codespaces-build' only | |
if: ${{ github.ref == 'refs/heads/master' || contains(github.event.pull_request.labels.*.name, 'codespaces-build') }} | |
steps: | |
- uses: actions/checkout@v3 | |
with: | |
fetch-depth: 1 | |
- name: Lowercase GITHUB_REPOSITORY | |
id: lowercase | |
run: | | |
echo "repository=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT" | |
# As ghcr.io complains if the image has upper case letters, we use | |
# this action to ensure we get a lower case version. See | |
# https://github.com/docker/build-push-action/issues/237#issuecomment-848673650 | |
# for more details | |
- name: Docker image metadata | |
id: meta | |
uses: docker/metadata-action@v5 | |
with: | |
images: ghcr.io/${{ steps.lowercase.outputs.repository }}/codespaces | |
tags: | | |
type=ref,event=branch | |
type=raw,value=master | |
# We also want to use cache-from when building, but we want to also | |
# include the master tag so we get the master branch image as well. | |
# This creates a scope similar to the github cache action scoping | |
- name: Docker cache-from/cache-to metadata | |
id: meta-for-cache | |
uses: docker/metadata-action@v5 | |
with: | |
images: ghcr.io/${{ steps.lowercase.outputs.repository }}/codespaces | |
tags: | | |
type=raw,value=master | |
# Install QEMU so we can target x86_64 (github codespaces) | |
- name: Set up QEMU | |
uses: docker/setup-qemu-action@v3 | |
- name: Set up Docker Buildx | |
uses: docker/setup-buildx-action@v2 | |
- name: Login to GitHub Container Registry | |
uses: docker/login-action@v3 | |
with: | |
registry: ghcr.io | |
username: ${{ github.actor }} | |
password: ${{ secrets.GITHUB_TOKEN }} | |
- name: Build and push | |
uses: docker/build-push-action@v2 | |
with: | |
context: . | |
file: .devcontainer/Dockerfile | |
push: true | |
platforms: x86_64 | |
# Cache from this branch, or master | |
cache-from: ${{ steps.meta-for-cache.outputs.tags }} | |
# NOTE: we use inline as suggested here: | |
# https://github.com/docker/build-push-action/blob/master/docs/advanced/cache.md#inline-cache | |
# It notes that it doesn't support mode=max, but we're not | |
# removing any layers, soooo, maybe it's fine. | |
cache-to: type=inline | |
tags: ${{ steps.meta.outputs.tags }} | |
labels: ${{ steps.meta.outputs.labels }} |