action.yml

name: "Kali Linux to DigitalOcean"
description: "Downloads, converts, and uploads the latest Kali Linux Generic Cloud Image to DigitalOcean Custom Images."
branding:
  icon: 'arrow-up-circle'
  color: 'blue'
inputs:
  DIGITALOCEAN_ACCESS_TOKEN:
    description: "DigitalOcean API token to authenticate the upload."
    required: true
  REGION:
    description: "DigitalOcean region where the custom image will be uploaded (e.g., nyc3, sfo3)."
    required: true
  release_tag_prefix:
    description: "Prefix for release tags to avoid conflicts with existing tags."
    required: false
    default: "kali-image"
runs:
  using: "composite"
  steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Fetch Latest Kali Linux Version
      run: |
        URL=$(curl -s https://kali.download/cloud-images/current/ | grep -oE 'kali-linux-[0-9]+\.[0-9]+-cloud-genericcloud-amd64.tar.xz' | head -n 1)
        FULL_URL="https://kali.download/cloud-images/current/$URL"
        KALI_VERSION=$(echo $URL | grep -oE '[0-9]+\.[0-9]+')
        echo "KALI_VERSION=$KALI_VERSION" >> $GITHUB_ENV
        echo "IMAGE_URL=$FULL_URL" >> $GITHUB_ENV

    - name: Download Kali Linux Image
      run: wget ${{ env.IMAGE_URL }}

    - name: Extract Image
      run: tar -xvf kali-linux-${{ env.KALI_VERSION }}-cloud-genericcloud-amd64.tar.xz

    - name: Compress Image to gzip
      run: gzip -c disk.raw > disk.raw.gz

    - name: Versioning
      run: |
        if [ ! -f version.txt ]; then
          NEW_VERSION="${{ inputs.release_tag_prefix }}-v1.0.0"  # Set NEW_VERSION for the first run with prefix
          echo "$NEW_VERSION" > version.txt
        else
          VERSION=$(cat version.txt)
          MAJOR_VERSION=$(echo $VERSION | cut -d. -f1 | sed "s/${{ inputs.release_tag_prefix }}-v//")
          NEXT_MAJOR_VERSION=$((MAJOR_VERSION + 1))
          NEW_VERSION="${{ inputs.release_tag_prefix }}-v$NEXT_MAJOR_VERSION.0.0"
          echo "$NEW_VERSION" > version.txt
        fi
        echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV

    - name: Commit new version
      run: |
        git config user.name "github-actions[bot]"
        git config user.email "github-actions[bot]@users.noreply.github.com"
        git add version.txt
        git commit -m "Update version to ${{ env.NEW_VERSION }} - Kali Linux ${{ env.KALI_VERSION }}"
        git push

    - name: Create Release
      uses: softprops/action-gh-release@v2
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        tag_name: ${{ env.NEW_VERSION }}
        files: ./disk.raw.gz
        draft: false
        prerelease: false

    - name: Upload to DigitalOcean
      run: |
        curl -X POST "https://api.digitalocean.com/v2/images" \
        -H "Authorization: Bearer ${{ inputs.DIGITALOCEAN_ACCESS_TOKEN }}" \
        -H "Content-Type: application/json" \
        -d "{
              \"name\": \"Kali Linux ${{ env.KALI_VERSION }} from GitHub Actions\",
              \"url\": \"https://github.com/${{ github.repository }}/releases/download/${{ env.NEW_VERSION }}/disk.raw.gz\",
              \"distribution\": \"Debian\",
              \"region\": \"${{ inputs.REGION }}\",
              \"description\": \"Kali Linux\",
              \"tags\": [\"kali\"]
            }"