name: Fetch Kubeadm and List Images

on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  fetch-kubeadm:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set environment variables
        run: |
          # Refer https://docs.docker.com/desktop/release-notes/ to get the K8s release version
          BRANCH_NAME="${GITHUB_REF#refs/heads/}"
          if [[ $BRANCH_NAME == "main" ]]; then
            echo "RELEASE=v1.31.4" >> $GITHUB_ENV
          else
            echo "RELEASE=$BRANCH_NAME" >> $GITHUB_ENV
          fi
          echo "ARCH=amd64" >> $GITHUB_ENV
          echo "DOWNLOAD_DIR=${{ github.workspace }}/download" >> $GITHUB_ENV

      - name: Create download directory
        run: mkdir -p $DOWNLOAD_DIR

      - name: Download kubeadm
        run: |
          cd $DOWNLOAD_DIR
          sudo curl -L --remote-name-all https://dl.k8s.io/release/${{ env.RELEASE }}/bin/linux/${{ env.ARCH }}/kubeadm
          sudo chmod +x kubeadm

      - name: List Kubernetes images with Aliyun registry mapping
        run: |
          IMAGE_FILE=${{ github.workspace }}/images.properties
          echo "# Original images.properties"
          cat $IMAGE_FILE
          echo ""
          echo "# Generated images.properties"
          cd $DOWNLOAD_DIR
          ./kubeadm config images list --kubernetes-version ${{ env.RELEASE }} | awk '
          {
              if ($0 ~ /registry.k8s.io\/coredns\/coredns/) {
                  print $0 "=" "registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:" substr($0, index($0, ":") + 1)
              } else {
                  print $0 "=" "registry.cn-hangzhou.aliyuncs.com/google_containers/" substr($0, index($0, "/") + 1)
              }
          }' | tee $IMAGE_FILE
          REPO_NAME=desktop-kubernetes
          curl -s "https://hub.docker.com/v2/repositories/docker/$REPO_NAME/tags/" | \
          jq -r '.results[].name' | \
          grep "$RELEASE" | \
          awk -v repo="docker/$REPO_NAME" -v registry="registry.cn-hangzhou.aliyuncs.com/docker-containers/$REPO_NAME" \
            '{print repo ":" $1 "=" registry ":" $1}' | tee -a $IMAGE_FILE
          echo docker/desktop-vpnkit-controller:dc331cb22850be0cdd97c84a9cfecaf44a1afb6e=registry.cn-hangzhou.aliyuncs.com/docker-containers/desktop-vpnkit-controller:dc331cb22850be0cdd97c84a9cfecaf44a1afb6e | tee -a $IMAGE_FILE
          echo docker/desktop-storage-provisioner:v2.0=registry.cn-hangzhou.aliyuncs.com/docker-containers/desktop-storage-provisioner:v2.0 | tee -a $IMAGE_FILE
          if [ "$BRANCH_NAME" != "master" ]; then
            git config --global user.email "denverdino@gmail.com"
            git config --global user.name "denverdino"
            git add $IMAGE_FILE
            git commit -m "Update images.properties with Kubernetes release: $BRANCH_NAME"
            git push
          fi