Skip to content

Create and publish a Docker image #28

Create and publish a Docker image

Create and publish a Docker image #28

# This workflow is used to build and publish docker images for the proof servers
# of our Light Clients. It is triggered manually and requires the user to provide
# the Light Client and the version of the image to be published.
#
# The workflow can be triggered here: https://github.com/argumentcomputer/zk-light-clients/actions/workflows/docker-publish.yml
#
# The workflow is configured to run on the latest version of Ubuntu, and it uses
# the `docker/build-push-action` action to build the image and push it to the
# GitHub Container Registry. The image is tagged with the Light Client and the
# version provided by the user.
name: Create and publish a Docker image
on:
workflow_dispatch:
inputs:
light-client:
description: 'aptos or ethereum'
type: choice
required: true
options:
- aptos
- ethereum
version:
description: "Image version"
required: true
type: string
permissions:
id-token: write
contents: read
attestations: write
packages: write
# Defines two custom environment variables for the workflow. These are used for the Container registry domain, and a name for the Docker image that this workflow builds.
env:
REGISTRY: "ghcr.io"
NAMESPACE: "argumentcomputer"
IMAGE_NAME: "proof-server"
# There is a single job in this workflow. It's configured to run on the latest available version of Ubuntu.
jobs:
build-and-push-image:
runs-on: ubuntu-latest
# Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
permissions:
contents: read
packages: write
attestations: write
id-token: write
#
steps:
- name: Checkout repository
uses: actions/checkout@v4
# Set up Docker Buildx for better layer caching
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v2
# Use Docker layer caching for faster builds
- name: Cache Docker layers
uses: actions/cache@v3
with:
path: /tmp/.buildx-cache
key: ${{ runner.os }}-buildx-${{ github.sha }}
restore-keys: |
${{ runner.os }}-buildx-
# Uses the `docker/login-action` action to log in to the Container registry registry using the account and password that will publish the packages. Once published, the packages are scoped to the account defined here.
- name: Log in to the Container registry
uses: docker/login-action@v3
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
# This step uses [docker/metadata-action](https://github.com/docker/metadata-action#about) to extract tags and labels that will be applied to the specified image. The `id` "meta" allows the output of this step to be referenced in a subsequent step. The `images` value provides the base name for the tags and labels.
- name: Extract metadata (tags, labels) for Docker
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.REGISTRY }}/${{ env.NAMESPACE }}/${{ env.IMAGE_NAME }}
# Creates an additional 'latest'
- name: Finalize Docker Metadata
id: docker_tagging
run: |
echo "Neither scheduled nor manual release from main branch. Just tagging as branch name"
echo "docker_tags=${{ env.REGISTRY }}/${{ env.NAMESPACE }}/${{ inputs.light-client }}-proof-server:${{inputs.version}}" >> $GITHUB_OUTPUT
# Log docker metadata to explicitly know what is being pushed
- name: Inspect Docker Metadata
run: |
echo "TAGS -> ${{ steps.docker_tagging.outputs.docker_tags }}"
echo "LABELS -> ${{ steps.meta.outputs.labels }}"
# This step uses the `docker/build-push-action` action to build the image, based on your repository's `Dockerfile`. If the build succeeds, it pushes the image to GitHub Packages.
# It uses the `context` parameter to define the build's context as the set of files located in the specified path. For more information, see "[Usage](https://github.com/docker/build-push-action#usage)" in the README of the `docker/build-push-action` repository.
# It uses the `tags` and `labels` parameters to tag and label the image with the output from the "meta" step.
- name: Build and push Docker image
id: push
uses: docker/build-push-action@v6
with:
context: .
file: ./docker/Dockerfile
push: true
build-args: |
LIGHT_CLIENT=${{ inputs.light-client }}
tags: ${{ steps.docker_tagging.outputs.docker_tags }}
labels: ${{ steps.meta.outputs.labels }}
# This step generates an artifact attestation for the image, which is an unforgeable statement about where and how it was built. It increases supply chain security for people who consume the image. For more information, see the "[attestation docs](https://docs.github.com/en/actions/security-for-github-actions/using-artifact-attestations/using-artifact-attestations-to-establish-provenance-for-builds)."
- name: Generate artifact attestation
uses: actions/attest-build-provenance@v1
with:
subject-name: ${{ env.REGISTRY }}/${{ env.NAMESPACE }}/${{ inputs.light-client }}-proof-server
subject-digest: ${{ steps.push.outputs.digest }}
push-to-registry: true