build.yaml

---
name: Build kube-resources images

on:
  push:
    tag:
      - 'v*'

env:
  IMAGE_REGISTRY: "ghcr.io"
  REGISTRY_USER: "${{ github.repository_owner }}"
  REGISTRY_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
  IMAGE_REPO: "ghcr.io/${{ github.repository_owner }}"
  IMAGE_NAMR: "kube-resources"

jobs:
  build:
    if: startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          # fetch all git repo tag for define image tag
          fetch-depth: 0

      - name: Log in to GitHub Docker Registry
        uses: docker/login-action@v1
        with:
          registry: ${{ env.IMAGE_REGISTRY }}
          username: ${{ env.REGISTRY_USER }}
          password: ${{ env.REGISTRY_TOKEN }}

      - name: Download files
        run: |
          git describe --tags --always | sed 's/^/KUBE_VERSION=/' >> $GITHUB_ENV
          source $GITHUB_ENV
          KUBE_VERSION=${KUBE_VERSION} bash download.sh
          echo -e "FROM scratch\nCOPY kube /kube" > Dockerfile

      - name: Build and push kube-resources image
        uses: docker/build-push-action@v2
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          file: Dockerfile
          tags: ${IMAGE_REPO}/${IMAGE_NAME}:${KUBE_VERSION}