deploy.yml

name: Deploy Knowledge Manager

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Check out code
        uses: actions/checkout@v4

      # 1) Create the environment file for Angular (similar to chatbot approach)
      - name: Create Environment File
        run: |
          echo "export const environment = {
            production: true,
            backendUrl: '/api',
            angelosAppApiKey: '${{secrets.ANGELOS_APP_API_KEY}}'
          };" > src/environments/environment.prod.ts

      - name: Verify Environment File Creation
        run: |
          if [ -f src/environments/environment.prod.ts ]; then
            echo "Environment file created successfully."
          else
            echo "Environment file creation failed." && exit 1
          fi

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build and Push Knowledge Manager Image
        uses: docker/build-push-action@v6
        with:
          platforms: linux/amd64, linux/arm64
          file: ./Dockerfile
          context: .
          tags: ghcr.io/ls1intum/knowledge-manager:latest
          push: true
          no-cache: true

  deploy:
    needs: build
    runs-on: ubuntu-latest

    steps:
      - name: Check out code
        uses: actions/checkout@v4

      # -------------------------------------------------
      # COPY KNOWLEDGE MANAGER DOCKER COMPOSE
      # -------------------------------------------------
      - name: Copy Knowledge Manager Compose to VM
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ vars.VM_HOST }}
          username: ${{ vars.VM_USERNAME }}
          key: ${{ secrets.VM_SSH_PRIVATE_KEY }}
          proxy_host: ${{ vars.DEPLOYMENT_GATEWAY_HOST }}
          proxy_username: ${{ vars.DEPLOYMENT_GATEWAY_USER }}
          proxy_key: ${{ secrets.DEPLOYMENT_GATEWAY_SSH_KEY }}
          proxy_port: ${{ vars.DEPLOYMENT_GATEWAY_PORT }}

          source: "./docker-compose.yml"
          target: "/home/${{ vars.VM_USERNAME }}/${{ github.repository }}"

      # -------------------------------------------------
      # COPY REVERSE-PROXY DOCKER COMPOSE + nginx.conf
      # -------------------------------------------------
      - name: Copy Reverse Proxy Compose to VM
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ vars.VM_HOST }}
          username: ${{ vars.VM_USERNAME }}
          key: ${{ secrets.VM_SSH_PRIVATE_KEY }}
          proxy_host: ${{ vars.DEPLOYMENT_GATEWAY_HOST }}
          proxy_username: ${{ vars.DEPLOYMENT_GATEWAY_USER }}
          proxy_key: ${{ secrets.DEPLOYMENT_GATEWAY_SSH_KEY }}
          proxy_port: ${{ vars.DEPLOYMENT_GATEWAY_PORT }}

          source: "./reverse-proxy/docker-compose.yml"
          target: "/home/${{ vars.VM_USERNAME }}/${{ github.repository }}"

      - name: Copy Reverse Proxy nginx.conf to VM
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ vars.VM_HOST }}
          username: ${{ vars.VM_USERNAME }}
          key: ${{ secrets.VM_SSH_PRIVATE_KEY }}
          proxy_host: ${{ vars.DEPLOYMENT_GATEWAY_HOST }}
          proxy_username: ${{ vars.DEPLOYMENT_GATEWAY_USER }}
          proxy_key: ${{ secrets.DEPLOYMENT_GATEWAY_SSH_KEY }}
          proxy_port: ${{ vars.DEPLOYMENT_GATEWAY_PORT }}

          source: "./reverse-proxy/nginx.conf"
          target: "/home/${{ vars.VM_USERNAME }}/${{ github.repository }}"

      # -------------------------------------------------
      # SSH INTO VM, RUN BOTH KNOWLEDGE MANAGER AND REVERSE PROXY
      # -------------------------------------------------
      - name: SSH to VM and Start Services
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ vars.VM_HOST }}
          username: ${{ vars.VM_USERNAME }}
          key: ${{ secrets.VM_SSH_PRIVATE_KEY }}
          proxy_host: ${{ vars.DEPLOYMENT_GATEWAY_HOST }}
          proxy_username: ${{ vars.DEPLOYMENT_GATEWAY_USER }}
          proxy_key: ${{ secrets.DEPLOYMENT_GATEWAY_SSH_KEY }}
          proxy_port: ${{ vars.DEPLOYMENT_GATEWAY_PORT }}
          script: |
            # 1) Ensure the shared Docker network exists
            if ! docker network inspect angelos-network >/dev/null 2>&1; then
              echo "Network 'angelos-network' does not exist, creating it..."
              docker network create angelos-network
            fi

            # 2) Spin up Knowledge Manager
            cd /home/${{ vars.VM_USERNAME }}/${{ github.repository }}
            docker compose pull knowledge-manager
            docker compose up -d --force-recreate --remove-orphans

            # 3) Spin up Reverse Proxy
            cd reverse-proxy
            docker compose pull nginx-proxy || true
            docker compose up -d --force-recreate --remove-orphans

            # 4) Optional: Verify running containers
            docker ps