pi-dispatch/.github/workflows/image.yml at ec1d821bf0cc983637f505cfcbd8b7aaaa1bb6c4 · edgehero/pi-dispatch · GitHub

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# Build and publish the pi-dispatch job image to GHCR so operators `docker pull` instead of the slow local
# build (Chromium + Playwright + fonts, minutes). main is branch-protected (a PR is required and the five
# contract checks in pi-upgrade-check.yml must be green, admins included), so a push here is an already-gated
# merge — nothing in this workflow merges anything (CONST-MERGE-NEVER-AUTOMATIC).
#
# The pushed image is a snapshot of THIS repo's runner + guardrails at the built commit. Operators who bake
# their own toolchain into image/Dockerfile still build locally; the pull is only the fast default path.
#
# No secret required: GHCR auth uses the built-in GITHUB_TOKEN (packages: write). One-time after the first
# successful run: make the ghcr.io/edgehero/pi-job package Public in the org's package settings, otherwise
# `docker pull` needs auth.
#
# Tags: `latest`, the git `sha`, and the PRODUCT version from the root package.json (so a release cuts a
# tag that never moves, and a deployment can pin `ghcr.io/edgehero/pi-job:<version>` instead of tracking latest).

name: image

on:
  push:
    branches: [main]
    paths:
      - "image/**"
      - "package.json" # the ROOT one: a product version bump republishes under its own tag
      - ".github/workflows/image.yml"
  # Manual re-run (available once this file is on the default branch).
  workflow_dispatch: {}

permissions:
  contents: read
  packages: write # push to ghcr.io/edgehero/*

concurrency:
  group: image
  cancel-in-progress: false

env:
  IMAGE: ghcr.io/edgehero/pi-job

jobs:
  build-push:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: docker/setup-qemu-action@v3 # arm64 emulation for the multi-arch build
      - uses: docker/setup-buildx-action@v3

      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Resolve the product version (the tag operators can pin)
        id: v
        run: echo "version=$(node -p "require('./package.json').version")" >> "$GITHUB_OUTPUT"

      - name: Tags + labels
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE }}
          tags: |
            type=raw,value=latest
            type=raw,value=${{ steps.v.outputs.version }}
            type=sha

      - name: Build + push (amd64 + arm64)
        uses: docker/build-push-action@v6
        with:
          context: . # repo root — the Dockerfile copies image/runner + guardrails from here
          file: image/Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max