generate-ecs-mappings.yml

name: ECS Generator

on:
  push:
    paths:
      - 'ecs/**'

jobs:
  run-ecs-generator:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Set up Docker Compose
        run: sudo apt-get install docker-compose

      - name: Extract ECS Modules and Run ECS Generator
        id: run-ecs-generator
        run: |
          # Fetch base branch
          git fetch origin +refs/heads/master:refs/remotes/origin/master

          # Extract the ECS module names from the modified files
          modified_files=$(git diff --name-only origin/master)
          updated_modules=()
          for file in $modified_files; do
            if [[ $file == ecs/* ]]; then
              ecs_module=$(echo $file | cut -d'/' -f2)
              if [[ ! " ${updated_modules[*]} " =~ " ${ecs_module} " ]]; then
                updated_modules+=("$ecs_module")
              fi
            fi
          done

          # Filter out modules that do not have corresponding JSON files
          declare -A module_to_file=(
            [agent]="index-template-agent.json"
            [alerts]="index-template-alerts.json"
            [commands]="index-template-commands.json"
            [hardware]="index-template-hardware.json"
            [hotfixes]="index-template-hotfixes.json"
            [fim]="index-template-fim.json"
            [networks]="index-template-networks.json"
            [packages]="index-template-packages.json"
            [ports]="index-template-ports.json"
            [processes]="index-template-processes.json"
            [scheduled-commands]="index-template-scheduled-commands.json"
            [system]="index-template-system.json"
            [vulnerabilities]="index-template-vulnerabilities.json"
          )

          relevant_modules=()
          for ecs_module in "${updated_modules[@]}"; do
            if [[ -n "${module_to_file[$ecs_module]}" ]]; then
              relevant_modules+=("$ecs_module")
            fi
          done

          if [[ ${#relevant_modules[@]} -gt 0 ]]; then
            export REPO_PATH=$(pwd)
            for ecs_module in "${relevant_modules[@]}"; do
              # Run the ECS generator script for each relevant module
              bash docker/ecs/mapping-generator.sh run "$ecs_module"
              echo "Processed ECS module: $ecs_module"
            done
            echo "relevant_modules=${relevant_modules[*]}" >> $GITHUB_ENV
          else
            echo "No relevant modifications detected in ecs/ directory."
            exit 0
          fi

      - name: Tear down ECS Generator
        if: always()
        run: bash docker/ecs/mapping-generator.sh down

      - name: Upload artifact
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: ecs-template
          path: ecs/**/mappings/v8.11.0/generated/elasticsearch/legacy/template.json

      - name: Checkout target repository
        uses: actions/checkout@v4
        with:
          repository: wazuh/wazuh-indexer-plugins
          token: ${{ secrets.GITHUB_TOKEN }}
          path: wazuh-indexer-plugins

      - name: Copy generated files to target repository
        run: |
          # Map ECS modules to target JSON filenames
          declare -A module_to_file=(
            [agent]="index-template-agent.json"
            [alerts]="index-template-alerts.json"
            [commands]="index-template-commands.json"
            [hardware]="index-template-hardware.json"
            [hotfixes]="index-template-hotfixes.json"
            [fim]="index-template-fim.json"
            [networks]="index-template-networks.json"
            [packages]="index-template-packages.json"
            [ports]="index-template-ports.json"
            [processes]="index-template-processes.json"
            [scheduled-commands]="index-template-scheduled-commands.json"
            [system]="index-template-system.json"
            [vulnerabilities]="index-template-vulnerabilities.json"
          )

          for ecs_module in ${relevant_modules[@]}; do
            target_file=${module_to_file[$ecs_module]}
            if [[ -z "$target_file" ]]; then
              echo "No corresponding file for module $ecs_module"
              continue
            fi

            mkdir -p wazuh-indexer-plugins/plugins/setup/src/main/resources/
            cp ecs/$ecs_module/mappings/v8.11.0/generated/elasticsearch/legacy/template.json wazuh-indexer-plugins/plugins/setup/src/main/resources/$target_file
          done

      - name: Commit and push changes
        run: |
          cd wazuh-indexer-plugins
          git config --global user.email "github-actions@github.com"
          git config --global user.name "GitHub Actions"

          branch_name="update-ecs-templates"

          # Check if branch exists
          if git ls-remote --heads origin $branch_name | grep $branch_name; then
            git checkout $branch_name
          else
            git checkout -b $branch_name
          fi

          git add .
          git commit -m "Update ECS templates for modified modules: $relevant_modules"
          git push origin $branch_name

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v4
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: "Update ECS templates for modified modules: $relevant_modules"
          branch: update-ecs-templates
          title: "Update ECS templates for modified modules: $relevant_modules"
          body: "This PR updates the ECS templates for the following modules: $relevant_modules."
          base: master