ci_cd_fail_notification.yml

name: Notify on Workflow Failure

on:
  workflow_run:
    workflows: ["Backend CI", "Backend CD", "Frontend CD", "Frontend CI"]
    types:
      - completed

jobs:
  notify:
    if: ${{ github.event.workflow_run.conclusion == 'failure' }}
    runs-on: ubuntu-latest
    steps:
    - name: 변수 추출
      run: |
        SLACK_WEBHOOK_URL=${{ secrets.SLACK_CICD_FAIL_WEBHOOK_URL }}
        SLACK_IDS=${{ secrets.SLACK_IDS }}
        echo "SLACK_WEBHOOK_URL=$SLACK_WEBHOOK_URL" >> $GITHUB_ENV
        echo "SLACK_IDS=$SLACK_IDS" >> $GITHUB_ENV

    - name: CI 또는 CD 실패 시 Slack 알람 보내기
      run: |
          WORKFLOW_NAME="${{ github.event.workflow_run.name }}"
          WORKFLOW_URL="${{ github.event.workflow_run.html_url }}"
          ASSIGNEE="${{ github.event.workflow_run.actor.login }}"
          mentions=""

          parse_slack_ids() {
              echo "$SLACK_IDS" | jq -r 'to_entries | map("\(.key):\(.value)") | .[]'
          }
          
          slack_id=$(parse_slack_ids | grep "^$ASSIGNEE:" | cut -d':' -f2)

          if [ -n "$slack_id" ]; then
              MENTION="<@$slack_id>"
          else
              MENTION="$ASSIGNEE"
          fi

          if [ ! -z "$MENTION" ]; then
            message="$MENTION 님, 실행된 $WORKFLOW_NAME 워크플로가 실패했습니다. <$WORKFLOW_URL|확인하러 가기>."
            curl -X POST -H 'Content-type: application/json' \
              --data "{\"text\":\"$message\"}" \
              "$SLACK_WEBHOOK_URL"
            echo "Sent message: $message"
          else
            echo "No MENTIONER to notify"
          fi