sync-and-deploy.yaml

name: Deploy to EKS

on:
  push:
    branches:
      - main
      - dev

env:
  AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
  AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
  AWS_REGION: ${{ secrets.AWS_BASE_REGION }}
  TFSTATE_BUCKET: ${{ secrets.TFSTATE_BUCKET }}
  TFSTATE_KEY: ${{ secrets.TFSTATE_KEY }}
  GRAFANA_ADMIN_PASSWORD: ${{ secrets.GRAFANA_ADMIN_PASSWORD }}
  ECR_REPOSITORY: ${{ secrets.ECR_REPOSITORY }}
  EKS_CLUSTER_NAME: ${{ secrets.EKS_CLUSTER_NAME }}
  CLOUDFLARE_ZONE_ID: ${{ secrets.CLOUDFLARE_ZONE_ID }}
  CLOUDFLARE_TOKEN: ${{ secrets.CLOUDFLARE_TOKEN }}

jobs: 
  terraform-apply:
    name: Sync Terraform
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./terraform
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Determine Deployment Stage
        id: determine_stage
        run: |
          if [[ "${{ github.ref_name }}" == "main" ]]; then
            echo "stage=prod" >> $GITHUB_ENV
          else
            echo "stage=dev" >> $GITHUB_ENV
          fi

      - name: Terraform Apply
        id: terraform-apply
        uses: ./.github/actions/terraform-apply
        with:
          aws-access-key-id: ${{ env.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ env.AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ env.AWS_REGION }}
          tfstate-bucket: ${{ env.TFSTATE_BUCKET }}
          tfstate-key: ${{ env.TFSTATE_KEY }}
          stage: ${{ env.stage }}
          GRAFANA_ADMIN_PASSWORD: ${{ env.GRAFANA_ADMIN_PASSWORD }}
          CLOUDFLARE_ZONE_ID: ${{ env.CLOUDFLARE_ZONE_ID }}
          CLOUDFLARE_TOKEN: ${{ env.CLOUDFLARE_TOKEN }}

  deploy:
    needs: terraform-apply
    name: Deploy API
    runs-on: ubuntu-latest
    outputs:
      message: ${{ steps.verify-deployment.outputs.status }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      
      - name: Determine Deployment Stage
        id: determine_stage
        run: |
          if [[ "${{ github.ref_name }}" == "main" ]]; then
            echo "stage=prod" >> $GITHUB_ENV
          else
            echo "stage=dev" >> $GITHUB_ENV
          fi

      - name: Check for Changes
        id: find_changes
        run: |
          if [ -z "$(git diff --name-only ${{ github.event.before }} ${{ github.sha }} -- app)" ]; then
            echo "::set-output name=deploy::false"
          else
            echo "::set-output name=deploy::true"
          fi

      - name: Build, tag, and push image to Amazon ECR
        id: build-push-image
        uses: ./.github/actions/build-push-image
        with:
          aws-access-key-id: ${{ env.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ env.AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ env.AWS_REGION }}
          ecr-repository: ${{ env.ECR_REPOSITORY }}
          dockerfile: ./Dockerfile
          stage: ${{ env.stage }}
          buildable: ${{ steps.find_changes.outputs.deploy }}

      - name: Update Kubeconfig
        run: |
          if [ "${{ steps.find_changes.outputs.deploy }}" != "false" ]; then
            aws eks update-kubeconfig --name ${{ env.EKS_CLUSTER_NAME }} --region ${{ env.AWS_REGION }}
          fi

      - name: Deploy to EKS
        working-directory: ./k8s
        env:
          IMAGE: ${{ steps.build-push-image.outputs.image }}
          STAGE: ${{ env.stage }}
        run: |
          if [ "${{ steps.find_changes.outputs.deploy }}" != "false" ]; then
            sed -i "s|{{IMAGE}}|${IMAGE}|g" ${STAGE}/deployment.yaml
            kubectl apply -f ${STAGE}
          fi

      - name: Verify Deployment
        id: verify-deployment
        env:
          STAGE: ${{ env.stage }}
        shell: bash
        run: |
          if [ "${{ steps.find_changes.outputs.deploy }}" != "false" ]; then
            kubectl rollout status deployment/app -n ${STAGE} --timeout=5m
            if [ $? -eq 0 ]; then
              echo "status=Deployment successful!" >> $GITHUB_OUTPUT
            else
              echo "status=Deployment failed!" >> $GITHUB_OUTPUT
              exit 1
            fi
          else
            echo "status=No changes to deploy" >> $GITHUB_OUTPUT
          fi

  notify-slack:
    needs: deploy
    if: always()
    runs-on: ubuntu-latest
    steps:
      - uses: rtCamp/action-slack-notify@v2
        env:
          SLACK_CHANNEL: "#deployments"
          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
          SLACK_USERNAME: "Deployer on Cloudflare"
          SLACK_MESSAGE: ${{ needs.deploy.outputs.message }}
          SLACK_COLOR: ${{ job.status }}
          SLACK_ICON: "https://avatars.githubusercontent.com/u/44036562?s=200&v=4"