branch-deploy.yaml

name: Create pre-staging environment

on:
  pull_request:
    types: 
      - opened
      - synchronize
      - reopened
      - closed
    paths-ignore:
      - 'docs/**'

concurrency:
  group: ${{ github.workflow }}-${{ github.event.number }}
  cancel-in-progress: false

jobs:
  # This job validates if the user, who triggered the workflow, is a member of the organization
  # Note: Any workflow re-runs will use the privileges of github.actor, even if the actor initiating the re-run (github.triggering_actor) has different privileges.
  validate-user:
    name: Validate trigger author
    runs-on: ubuntu-latest
    if: |
      github.event_name == 'pull_request' &&
      github.actor != 'dependabot[bot]'
    outputs:
      is_org_member: ${{ steps.validate.outputs.is_member }}
    steps:
      - name: Generate a token
        id: generate_token
        uses: tibdex/github-app-token@v2
        with:
          app_id: ${{ secrets.GH_BOT_APP_ID }}
          private_key: ${{ secrets.GH_BOT_APP_KEY }}
      - name: Validate
        id: validate
        run: |
          if [ "${{ github.actor }}" == 'dependabot[bot]' ]; then
            echo "is_member=false" >> $GITHUB_OUTPUT
            exit 0
          fi
          member_status=$(gh api orgs/flowfuse/memberships/${{ github.actor }} -q '.state')
          if [ "${member_status}" == "active" ]; then
            echo "is_member=true" >> $GITHUB_OUTPUT
          else
            echo "is_member=false" >> $GITHUB_OUTPUT
          fi
        env:
          GH_TOKEN: ${{ steps.generate_token.outputs.token }}

  build:
    name: Build and contenerize
    needs: validate-user
    if: |
      needs.validate-user.outputs.is_org_member == 'true' &&
      github.event_name == 'pull_request' && 
      github.event.action != 'closed'
    runs-on: ubuntu-latest
    env:
      IMAGE_NAME: 'forge-k8s'
      PR_NUMBER: ${{ github.event.number }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set variables
        run: | 
          echo "tagged_image=${{ env.IMAGE_NAME }}:pr-${{ env.PR_NUMBER}}" >> $GITHUB_ENV

      - name: Setup QEMU
        uses: docker/setup-qemu-action@v3
  
      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@v3
  
      - name: Build container image
        id: build
        uses: docker/build-push-action@v6
        with:
          context: .
          file: "./ci/Dockerfile"
          tags: ${{ env.tagged_image }}
          push: false
          outputs: type=docker,dest=/tmp/k8s-forge.tar
      
      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: k8s-forge
          path: /tmp/k8s-forge.tar
          retention-days: 7

  deploy:
    name: Deploy application
    needs: [ validate-user, build ]
    if: |
      needs.validate-user.outputs.is_org_member == 'true' &&
      github.event_name == 'pull_request' && 
      github.event.action != 'closed'
    runs-on: ubuntu-latest
    environment: staging
    env:
      IMAGE_NAME: 'forge-k8s'
      PR_NUMBER: ${{ github.event.number }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set variables
        run: | 
          echo "tagged_image=${{ env.IMAGE_NAME }}:pr-${{ env.PR_NUMBER}}" >> $GITHUB_ENV
          echo "timestamp=$(date +%s)" >> $GITHUB_ENV

      - name: Download artifact
        uses: actions/download-artifact@v4
        with:
          name: k8s-forge
          path: /tmp

      - name: Load image
        run: |
          docker load --input /tmp/k8s-forge.tar
          docker image ls -a

      - name: Delete artifact
        uses: geekyeggo/delete-artifact@v5
        with:
          name: k8s-forge
          failOnError: false

      - name: Configure AWS credentials for ECR interaction
        id: aws-config
        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_ACCESS_KEY_SECRET }}
          aws-region: eu-west-1
          mask-aws-account-id: true
        
      - name: Login to AWS ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v2
        with:
          mask-password: true

      - name: Push to ECR
        run: |
          docker tag ${{ env.tagged_image }} ${{ steps.aws-config.outputs.aws-account-id }}.dkr.ecr.eu-west-1.amazonaws.com/flowforge/${{ env.tagged_image }}-${{ env.timestamp }}
          docker push ${{ steps.aws-config.outputs.aws-account-id }}.dkr.ecr.eu-west-1.amazonaws.com/flowforge/${{ env.tagged_image }}-${{ env.timestamp }}

      - name: Configure AWS credentials for EKS interaction
        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_ACCESS_KEY_SECRET }}
          aws-region: eu-west-1
          role-to-assume: arn:aws:iam::${{ secrets.AWS_ACCOUNT_ID }}:role/K8sAdmin
          role-duration-seconds: 1200

      - name: Configure kubeconfig
        run: |
          aws eks update-kubeconfig --region eu-west-1 --name ${{ secrets.EKS_CLUSTER_NAME }}

      - name: Check out FlowFuse/helm repository (to access latest helm chart)
        uses: actions/checkout@v4
        with:
          repository: 'FlowFuse/helm'
          ref: 'main'
          path: 'helm-repo'
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Check if deployment exists
        id: check-initial-setup
        run: |
          if helm status --namespace "pr-${{ env.PR_NUMBER }}" flowfuse-pr-${{ env.PR_NUMBER }} &> /dev/null; then
            echo "initialSetup=false" >> $GITHUB_ENV
          else
            echo "initialSetup=true" >> $GITHUB_ENV
          fi

      - name: Deploy
        run: |
          helm upgrade --install \
            --create-namespace \
            --namespace "pr-${{ env.PR_NUMBER }}" \
            --timeout 300s \
            --wait \
            --atomic \
            --values ci/ci-values.yaml \
            --set forge.image=${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.eu-west-1.amazonaws.com/flowforge/${{ env.tagged_image }}-${{ env.timestamp }} \
            --set forge.entryPoint=${{ env.PR_NUMBER }}.flowfuse.dev \
            --set forge.broker.hostname=${{ env.PR_NUMBER }}-mqtt.flowfuse.dev \
            --set forge.projectNamespace=pr-${{ env.PR_NUMBER }}-projects \
            --set forge.clusterRole.name=pr-${{ env.PR_NUMBER }}-clusterrole \
            --set forge.license=${{ secrets.PRE_STAGING_LICENSE }} \
            flowfuse-pr-${{ env.PR_NUMBER }} ./helm-repo/helm/flowforge

      - name: Initial setup
        if: ${{ env.initialSetup == 'true' }}
        run: |
          ./.github/scripts/initial-setup.sh ${{ env.PR_NUMBER }} ${{ secrets.INIT_CONFIG_PASSWORD_HASH }} ${{ secrets.INIT_CONFIG_ACCESS_TOKEN_HASH }} ${{ secrets.INIT_CONFIG_ACCESS_TOKEN }} ${{ secrets.INIT_CONFIG_PASSWORD }}
          
      - name: Summary
        run: |
          echo "### :rocket: Deployment succeeded" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Deployed commit SHA:** ${{ github.event.pull_request.head.sha }}" >> $GITHUB_STEP_SUMMARY
          echo "**Deployed to:** [https://${{ env.PR_NUMBER }}.flowfuse.dev](https://${{ env.PR_NUMBER }}.flowfuse.dev)" >> $GITHUB_STEP_SUMMARY

  notify-slack:
    name: Notify about pre-staging deployment
    needs: [deploy]
    if: |
      ( success() || failure() ) &&
      github.actor != 'dependabot[bot]'
    runs-on: ubuntu-latest
    env:
      PR_NUMBER: ${{ github.event.number }}

    steps:
    - name: Map users  
      id: map-actor-to-slack
      uses: icalia-actions/map-github-actor@v0.0.2
      with:
        actor-map: ${{ vars.SLACK_GITHUB_USERS_MAP }}
        default-mapping: C067BD0377F

    - name: Post to a Slack channel
      id: slack
      uses: slackapi/slack-github-action@v1.26.0
      with:
        channel-id: 'C067BD0377F'
        payload: |
          {
            "blocks": [
              {
                "type": "header",
                "text": {
                  "type": "plain_text",
                  "text": "Pull Request ${{ env.PR_NUMBER }} pre-staging deployment",
                  "emoji": true
                }
              },
              {
                "type": "section",
                "fields": [
                  {
                    "type": "mrkdwn",
                    "text": "*Status:*\n${{ needs.deploy.result == 'success' && ':white_check_mark: Success' || ':x: Failure '}}"
                  },
                  {
                    "type": "mrkdwn",
                    "text": "*Pull Request:*\n<https://github.com/FlowFuse/flowfuse/pull/${{ env.PR_NUMBER }}|${{ github.event.pull_request.title }}>"
                  },
                  {
                    "type": "mrkdwn",
                    "text": "*Workflow run:*\n<${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|View>"
                  }
                ]
              },
              {
                "type": "section",
                "fields": [
                  {
                    "type": "mrkdwn",
                    "text": "*Author:*\n<@${{ steps.map-actor-to-slack.outputs.actor-mapping }}>"
                  },
                  {
                    "type": "mrkdwn",
                    "text": "*Commit SHA:*\n<${{ github.server_url }}/${{ github.repository }}/commit/${{ github.event.pull_request.head.sha }}|${{ github.event.pull_request.head.sha }}>"
                  },
                  {
                    "type": "mrkdwn",
                    "text": "*Deployed to:*\n<https://${{ env.PR_NUMBER }}.flowfuse.dev|https://${{ env.PR_NUMBER }}.flowfuse.dev>"
                  }
                ]
              }
            ]
          }
      env:
        SLACK_BOT_TOKEN: ${{ secrets.SLACK_GHBOT_TOKEN }}


  destroy:
    name: Remove application
    needs: [ validate-user ]
    runs-on: ubuntu-latest
    if: |
      needs.validate-user.outputs.is_org_member == 'true' &&
      github.event_name == 'pull_request' && 
      github.event.action == 'closed'
    environment: staging
    env:
      IMAGE_NAME: 'forge-k8s'
      PR_NUMBER: ${{ github.event.number }}
    steps:
      - name: Configure AWS credentials for EKS interaction
        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_ACCESS_KEY_SECRET }}
          aws-region: eu-west-1
          role-to-assume: arn:aws:iam::${{ secrets.AWS_ACCOUNT_ID }}:role/K8sAdmin
          role-duration-seconds: 1200

      - name: Configure kubeconfig
        run: |
          aws eks update-kubeconfig --region eu-west-1 --name ${{ secrets.EKS_CLUSTER_NAME }}
      
      - name: Remove resources
        run: |
          if helm list -n "pr-${{ env.PR_NUMBER }}" --filter "^flowfuse-pr-${{ env.PR_NUMBER }}$" | grep "flowfuse-pr-${{ env.PR_NUMBER }}"; then
            helm uninstall --namespace "pr-${{ env.PR_NUMBER }}" flowfuse-pr-${{ env.PR_NUMBER }}
            sleep 15
            kubectl delete namespace "pr-${{ env.PR_NUMBER }}"
          else
            echo "Release flowfuse-pr-${{ env.PR_NUMBER }} does not exist"
          fi