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Docker

Docker #422

name: Docker
# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by separate
# terms of service, privacy policy, and support documentation.
# Based on: https://github.com/actions/starter-workflows/blob/main/ci/docker-publish.yml
on:
schedule:
- cron: 30 11 * * *
# min hr * * * (UTC)
push:
branches:
- master
tags: '*'
env:
# Use docker.io for Docker Hub if empty
REGISTRY: ghcr.io
# github.repository as <account>/<repo>
IMAGE_NAME: ${{ github.repository }}
jobs:
build:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
# This is used to complete the identity challenge with sigstore/fulcio
id-token: write
steps:
- name: Checkout repository
uses: actions/checkout@v3
# Install the cosign tool
# https://github.com/sigstore/cosign-installer
- name: Install Cosign
uses: sigstore/cosign-installer@main
# Set up Docker Buildx
# https://github.com/docker/setup-buildx-action
- name: Setup Docker buildx
uses: docker/setup-buildx-action@v2
# Login against a Docker registry
# https://github.com/docker/login-action
- name: Log into registry ${{ env.REGISTRY }}
uses: docker/login-action@v2
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
# Extract metadata (tags, labels) for Docker
# https://github.com/docker/metadata-action
- name: Extract Docker metadata
id: meta
uses: docker/metadata-action@v4
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
# Build and push Docker image with Buildx
# https://github.com/docker/build-push-action
- name: Build and push Docker image
id: build-and-push
uses: docker/build-push-action@v4
with:
context: .
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
cache-from: type=gha
cache-to: type=gha,mode=max
# Sign the resulting Docker image digest
# This will only write to the public Rekor transparency log when the Docker
# repository is public to avoid leaking data. To publish transparency data,
# even for private images, pass --force to cosign below.
# https://github.com/sigstore/cosign
- name: Sign the published Docker image
env:
tags: ${{ steps.meta.outputs.tags }}
digest: ${{ steps.build-and-push.outputs.digest }}
# This step uses the identity token to provision an ephemeral certificate
# against the sigstore community Fulcio instance.
run: echo "${tags}" | xargs -I {} cosign sign --yes {}@${digest}