GitHub action to report metric to grafana

deployment-frequency.yml

name: Deployment Metrics Reporter

on:
  workflow_call:
    inputs:
      service_name:
        required: true
        type: string
        description: 'Name of the service being deployed'
      environment:
        required: true
        type: string
        description: 'Environment being deployed to (e.g., production, staging)'
      grafana_host:
        required: true
        type: string
        description: 'Grafana host URL'

jobs:
  report-metrics:
    runs-on: ubuntu-latest
    steps:
      - name: Report Deployment Metric
        env:
          GRAFANA_API_KEY: ${{ secrets.GRAFANA_API_KEY }}
        run: |
          current_time=$(date +%s%N | cut -b1-13)  # Current time in milliseconds
          
          # Prepare the metrics payload
          metrics_json=$(cat <<EOF
          {
            "metrics": [
              {
                "name": "deployment_count",
                "value": 1,
                "timestamp": $current_time,
                "tags": {
                  "service": "${{ inputs.service_name }}",
                  "environment": "${{ inputs.environment }}",
                  "repository": "${{ github.repository }}",
                  "workflow": "${{ github.workflow }}"
                }
              }
            ]
          }
          EOF
          )
          
          # Send metrics to Grafana
          curl -X POST "${{ inputs.grafana_host }}/api/v1/push/metrics" \
            -H "Authorization: Bearer $GRAFANA_API_KEY" \
            -H "Content-Type: application/json" \
            -d "$metrics_json"