Add github workflow to publish xpkg

Author: Patrick J. McNerthney

.github/workflows/ci.yaml

@@ -0,0 +1,179 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+      - release-*
+  pull_request: {}
+  workflow_dispatch:
+    inputs:
+      version:
+        description: Package version (e.g. v0.1.0)
+        required: false
+
+env:
+  # Common versions
+  PYTHON_VERSION: '3.12.11' # TODO: Used?
+  DOCKER_BUILDX_VERSION: 'v0.26.1'
+
+  # These environment variables are important to the Crossplane CLI install.sh
+  # script. They determine what version it installs.
+  XP_CHANNEL: stable
+  XP_VERSION: current
+
+  # This CI job will automatically push new builds to xpkg.upbound.io if the
+  # XPKG_ACCESS_ID and XPKG_TOKEN secrets are set in the GitHub respository (or
+  # organization) settings. Create a token at https://accounts.upbound.io.
+  # XPKG_ACCESS_ID: ${{ secrets.XPKG_ACCESS_ID }}
+
+  # The package to push, without a version tag. The default matches GitHub. For
+  # example xpkg.upbound.io/crossplane/function-template-go.
+  # XPKG: xpkg.upbound.io/${{ github.repository}}
+  CROSSPLANE_REGORG: ghcr.io/${{ github.repository}}
+
+  # The package version to push. The default is 0.0.0-gitsha.
+  XPKG_VERSION: ${{ inputs.version }}
+
+jobs:
+  # lint:
+  #   runs-on: ubuntu-24.04
+  #   steps:
+  #     - name: Checkout
+  #       uses: actions/checkout@v4
+
+  #     - name: Setup Python
+  #       uses: actions/setup-python@v5
+  #       with:
+  #         python-version: ${{ env.PYTHON_VERSION }}
+
+  #     - name: Setup Hatch
+  #       run: pipx install hatch==1.7.0
+
+  #     - name: Lint
+  #       run: hatch run lint:check
+
+  # unit-test:
+  #   runs-on: ubuntu-24.04
+  #   steps:
+  #     - name: Checkout
+  #       uses: actions/checkout@v4
+
+  #     - name: Setup Python
+  #       uses: actions/setup-python@v5
+  #       with:
+  #         python-version: ${{ env.PYTHON_VERSION }}
+
+  #     - name: Setup Hatch
+  #       run: pipx install hatch==1.7.0
+
+  #     - name: Run Unit Tests
+  #       run: hatch run test:unit
+
+  # We want to build most packages for the amd64 and arm64 architectures. To
+  # speed this up we build single-platform packages in parallel. We then upload
+  # those packages to GitHub as a build artifact. The push job downloads those
+  # artifacts and pushes them as a single multi-platform package. 
+  build:
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: true
+      matrix:
+        arch:
+          - amd64
+          - arm64
+    steps:
+      - name: Setup QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: all
+
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          version: ${{ env.DOCKER_BUILDX_VERSION }}
+          install: true
+
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      # We ask Docker to use GitHub Action's native caching support to speed up
+      # the build, per https://docs.docker.com/build/cache/backends/gha/.
+      - name: Build Runtime
+        id: image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/${{ matrix.arch }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          target: image
+          build-args:
+            PYTHON_VERSION=${{ env.PYTHON_VERSION }}
+          outputs: type=docker,dest=runtime-${{ matrix.arch }}.tar
+      
+      - name: Setup the Crossplane CLI
+        run: "curl -sL https://raw.githubusercontent.com/crossplane/crossplane/master/install.sh | sh"
+
+      - name: Build Package
+        run: ./crossplane xpkg build --package-file=${{ matrix.arch }}.xpkg --package-root=package/ --embed-runtime-image-tarball=runtime-${{ matrix.arch }}.tar
+      
+      - name: Upload Single-Platform Package
+        uses: actions/upload-artifact@v4
+        with:
+          name: package-${{ matrix.arch }}
+          path: "*.xpkg"
+          if-no-files-found: error
+          retention-days: 1
+
+  # This job downloads the single-platform packages built by the build job, and
+  # pushes them as a multi-platform package. We only push the package it the
+  # XPKG_ACCESS_ID and XPKG_TOKEN secrets were provided.
+  push:
+    runs-on: ubuntu-24.04
+    needs:
+      - build
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Download Single-Platform Packages
+        uses: actions/download-artifact@v4
+        with:
+          # See https://github.com/docker/build-push-action/blob/263435/README.md#summaries
+          pattern: "!*.dockerbuild"
+          path: .
+          merge-multiple: true
+
+      - name: Setup the Crossplane CLI
+        run: "curl -sL https://raw.githubusercontent.com/crossplane/crossplane/master/install.sh | sh"
+
+      # - name: Login to Upbound
+      #   uses: docker/login-action@v3
+      #   if: env.XPKG_ACCESS_ID != ''
+      #   with:
+      #     registry: xpkg.upbound.io
+      #     username: ${{ secrets.XPKG_ACCESS_ID }}
+      #     password: ${{ secrets.XPKG_TOKEN }}
+
+      # If a version wasn't explicitly passed as a workflow_dispatch input we
+      # default to version v0.0.0-<git-commit-date>-<git-short-sha>, for example
+      # v0.0.0-20231101115142-1091066df799. This is a simple implementation of
+      # Go's pseudo-versions: https://go.dev/ref/mod#pseudo-versions.
+      # - name: Set Default Multi-Platform Package Version
+      #   if: env.XPKG_VERSION == ''
+      #   run: echo "XPKG_VERSION=v0.0.0-$(date -d@$(git show -s --format=%ct) +%Y%m%d%H%M%S)-$(git rev-parse --short=12 HEAD)" >> $GITHUB_ENV
+
+      # - name: Push Multi-Platform Package to Upbound
+      #   if: env.XPKG_ACCESS_ID != ''
+      #   run: "./crossplane --verbose xpkg push --package-files $(echo *.xpkg|tr ' ' ,) ${{ env.XPKG }}:${{ env.XPKG_VERSION }}"
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Push Multi-Platform Package to GHCR
+        run: "./crossplane --verbose xpkg push --package-files $(echo *.xpkg|tr ' ' ,) ${{ env.CROSSPLANE_REGORG }}:${{ env.XPKG_VERSION }}"