cd-dev.yaml

name: "CD: Deploy to Development"
run-name: "Deployed `${{ github.sha }}` for `${{ github.event.inputs.ttl }}` hours"

concurrency:
  group: dev-${{ github.ref }}
  cancel-in-progress: true

on:
  workflow_dispatch:
    inputs:
      ttl:
        description: "Deployment time to live in hours"
        required: true
        type: number
        default: 1
      auth:
        description: "Enable authentication support"
        required: true
        type: boolean
        default: false

env:
  HOSTS: "auth0.dev.berkeleytime.com auth1.dev.berkeleytime.com auth2.dev.berkeleytime.com auth3.dev.berkeleytime.com auth4.dev.berkeleytime.com auth5.dev.berkeleytime.com auth6.dev.berkeleytime.com auth7.dev.berkeleytime.com auth8.dev.berkeleytime.com auth9.dev.berkeleytime.com"

jobs:
  compute-sha:
    name: Compute sha_short and host
    runs-on: ubuntu-latest
    outputs:
      sha_short: ${{ steps.vars.outputs.sha_short }}
      host: ${{ steps.vars.outputs.host }}

    steps:
      - name: SSH and Query Hosts
        uses: appleboy/ssh-action@v1.2.2
        if: ${{ inputs.auth }}
        id: ssh
        with:
          host: ${{ secrets.SSH_HOST }}
          username: ${{ secrets.SSH_USERNAME }}
          key: ${{ secrets.SSH_KEY }}
          capture_stdout: true
          script: |
            set -e  # Exit immediately if a command fails

            for host in ${{ env.HOSTS }}; do
              if ! kubectl get ingress -o jsonpath='{.items[*].spec.rules[*].host}' | grep -qw "$host"; then
                echo $host
                exit 0
              fi
            done

      - name: Checkout Repository
        uses: actions/checkout@v4

      - name: Set vars
        id: vars
        run: |
          sha_short=$(git rev-parse --short ${{ github.sha }})
          auth_host=$(echo ${{ steps.ssh.outputs.stdout || '' }} | head -n 1)

          echo "sha_short=${sha_short}" >> $GITHUB_OUTPUT
          if [ -z $auth_host ]; then
            echo "host=$sha_short.dev.berkeleytime.com" >> $GITHUB_OUTPUT
          else
            echo "host=$auth_host" >> $GITHUB_OUTPUT
          fi

  build-push:
    name: Build and Push Images and Charts
    needs: [compute-sha]
    uses: ./.github/workflows/cd-build.yaml
    with:
      image_tag: ${{ needs.compute-sha.outputs.sha_short }}
      chart_ver: 0.1.0-dev-${{ needs.compute-sha.outputs.sha_short }}
    secrets: inherit

  deploy:
    name: SSH and Deploy
    needs: [compute-sha, build-push]
    uses: ./.github/workflows/cd-deploy.yaml
    with:
      environment: development
      name: bt-dev-app-${{ needs.compute-sha.outputs.sha_short }}
      version: 0.1.0-dev-${{ needs.compute-sha.outputs.sha_short }}
      deploy_staff: false
      values: |
        env: dev
        ttl: ${{ inputs.ttl }}
        frontend:
          image:
            tag: '${{ needs.compute-sha.outputs.sha_short }}'
        backend:
          image:
            tag: '${{ needs.compute-sha.outputs.sha_short }}'
        semanticSearch:
          image:
            tag: '${{ needs.compute-sha.outputs.sha_short }}'
        datapuller:
          suspend: true
          image:
            tag: '${{ needs.compute-sha.outputs.sha_short }}'
        host: ${{ needs.compute-sha.outputs.host }}
        mongoUri: mongodb://bt-stage-mongo-mongodb-0.bt-stage-mongo-mongodb-headless.bt.svc.cluster.local:27017/bt
        redisUri: redis://bt-stage-redis-master.bt.svc.cluster.local:6379
      host: ${{ needs.compute-sha.outputs.host }}
    secrets: inherit

  limit-deploy:
    name: SSH and Limit Deployments
    needs: [deploy]
    runs-on: ubuntu-latest
    steps:
      - name: SSH and Check Deployments
        uses: appleboy/ssh-action@v1.2.0
        with:
          host: ${{ secrets.SSH_HOST }}
          username: ${{ secrets.SSH_USERNAME }}
          key: ${{ secrets.SSH_KEY }}
          script: |
            set -e  # Exit immediately if a command fails

            # Get bt-dev-app- deployments sorted by creation timestamp
            deployments=$(helm list \
              --namespace=bt \
              --date \
              --short | grep '^bt-dev-app') || true
            deployment_count=$(echo "$deployments" | wc -l)

            # Check if deployment count > 8
            if [ "$deployment_count" -gt 8 ]; then
              echo "Too many deployments. Deleting the oldest deployment."

              # Get oldest deployment from first line of deployments
              oldest_deployment=$(echo "$deployments" | head -n 1)

              # Uninstall deployment
              helm uninstall "${oldest_deployment}"
            else
              echo "Deployment count is <= 8."
            fi