push-backend-to-ghcr-pr.yaml

# Push the pinned `primer-service` container image to ghcr.io whenever
# the "Deploy service" label is applied to a PR, which is also the
# Argo CD trigger that deploys that container to our development
# cluster.
#
# Note that there is a potential race here, but it's OK: if Argo CD
# tries to deploy the container before it's available in ghcr.io, Argo
# CD will keep trying until either it succeeds, or the PR is
# closed/the label is removed.
#
# Note: the images pushed here are for development *only*.
# Specifically, this workflow pushes the images to a different ghcr.io
# package name than the one used by the `primer` repo. Do not use them
# in production.
#
# This repo has no corresponding "push to ghcr.io" for pushes to
# `main` on purpose, because we don't want to deploy containers to
# production from this repo.

name: Push backend container image to ghcr.io (PR)

on:
  pull_request:
    types:
      - labeled

jobs:
  push-backend-to-ghcr-pr:
    if: ${{ github.event.label.name == 'Deploy service' }}
    permissions:
      contents: read
      packages: write
      id-token: write
    uses: ./.github/workflows/push-backend-to-ghcr.yaml
    with:
      package: "ghcr.io/hackworthltd/primer-service-dev"