release-observability-images.yaml

name: Create and upload packer generated images

on:
  push:
    branches:
      - 'main'
      - 'lma/release/tags'
env:
  PACKER_VERSION: "latest"
  AWS_ROLE_ARN: "arn:aws:iam::192549843005:role/github-devops-cd"

permissions:
  id-token: write
  contents: read
jobs:

  update-observability-version:
    runs-on: ubuntu-latest
    env:
      ENV_FILE_PATH: .github/shared-variables/.env
    steps:
      - name: Checkout Code
        uses: actions/checkout@v4

      - name: Load and Increment OBSERVABILITY_VERSION
        run: |
          OBSERVABILITY_VERSION=$(grep -E '^OBSERVABILITY_VERSION=' ${{ env.ENV_FILE_PATH }} | cut -d '=' -f2)
          if [ -z "$OBSERVABILITY_VERSION" ]; then
            echo "OBSERVABILITY_VERSION not found in .${{ env.ENV_FILE_PATH }}!"
            exit 1
          fi
          NEW_VERSION=$(printf "%05d" $((10#$OBSERVABILITY_VERSION + 1)))
          sed -i "s/^OBSERVABILITY_VERSION=.*/OBSERVABILITY_VERSION=${NEW_VERSION}/" .env
          echo::notice::"OBSERVABILITY_VERSION=${NEW_VERSION}"

      - name: Commit and Push Changes
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git commit -am "Increment OBSERVABILITY_VERSION to ${NEW_VERSION}"
          git push origin HEAD

  release-observability-image:
    runs-on: ubuntu-latest
    environment: release-node-images
    needs: [update-observability-version]
    strategy:
      matrix:
        cloud_provider: ['gcp', 'aws']
    defaults:
      run:
        working-directory: ./packer
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Load common variables
        run: cat ../.github/shared-variables/.env >> $GITHUB_ENV

      - name: Configure Cloud Credentials
        if: matrix.cloud_provider == 'gcp'
        uses: google-github-actions/auth@v2
        with:
          project_id: concordium-mgmt-0
          workload_identity_provider: projects/761241104197/locations/global/workloadIdentityPools/github/providers/concordium
          service_account: github-devops-cd@concordium-mgmt-0.iam.gserviceaccount.com

      - name: Configure AWS Credentials
        if: matrix.cloud_provider == 'aws'
        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-region: ${{ env.OBSERVABILITY_AWS_REGION }}
          role-to-assume: ${{ env.AWS_ROLE_ARN }}
          role-session-name: ReleaseObservabilityImageSession

      - name: Setup Packer
        uses: hashicorp/setup-packer@main
        id: setup
        with:
          version: ${{ env.PACKER_VERSION }}

      - name: Initialize Packer
        run: packer init observability

      - name: Determine Image Name
        run: echo "IMAGE_NAME=concordium-observability-node-${{ env.OBSERVABILITY_VERSION }}-${{ matrix.cloud_provider == 'gcp' && 'x86-64' || 'x86_64' }}" >> $GITHUB_ENV

      - name: Check if Image Already Exists
        run: |
          if [ "${{ matrix.cloud_provider }}" == "gcp" ]; then
            IMAGE_ID=$(gcloud compute images list --project="concordium-mgmt-0" --filter="name=(${IMAGE_NAME})" --format="value(name)")
          elif [ "${{ matrix.cloud_provider }}" == "aws" ]; then
            IMAGE_ID=$(aws ec2 describe-images --filters Name=name,Values=$IMAGE_NAME --query 'Images[*].ImageId' --output text)
          else
            echo "Unknown cloud provider: ${{ matrix.cloud_provider }}"
            exit 1
          fi
          echo "IMAGE_ID=$IMAGE_ID" >> $GITHUB_ENV

      - name: Setup subnet id
        if: ${{ matrix.cloud_provider == 'aws' }}
        run: |
          VALUE=$(echo '${{ env.REGION_TO_SUBNET }}' | jq -r --arg key "${{ env.OBSERVABILITY_AWS_REGION }}" '.[$key]')
          if [[ $VALUE == "null" ]]; then
            echo  "Key '${{ env.AWS_ENVIRONMENT_REGION }}' not found in ${{ env.REGION_TO_SUBNET }}"
            exit 1
          fi
          echo "AWS_SUBNET_ID=$VALUE" >> $GITHUB_ENV

      - name: Set variables
        if: ${{ env.IMAGE_ID == '' }}
        run: |
          export AMI_USERS='["727113945353"]'
          export CLOUD_PROVIDER=${{ matrix.cloud_provider }}
          export TARGET_AWS_REGIONS=$(echo '${{ env.ENVIRONMENT_TO_AWS_REGION }}' | jq -r -c --arg region "$AWS_REGION" '[..|strings]|unique | map(select(. != $region))')
          envsubst < observability/variables.pkrvars.hcl.template > variables.pkrvars.hcl

      - name: Build Image
        if: ${{ env.IMAGE_ID == '' }}
        run: |
          set -eo pipefail
          packer build -machine-readable -var-file=./variables.pkrvars.hcl observability | tee build-output.log