Trên công ty có ông bạn mang con Raspberry Pi B+ lên công ty dựng server để giám sát mạng, thế là mình xin ké 1 chân vào để deploy gì đấy vui vui 😁
Thế là bắt đầu tìm ý tưởng lặt vặt dựng con server nodejs gì đấy lên cho vui
Nhưng đến đoạn deploy lên, thì thấy nếu update code phải pull git về rồi chạy lại mất thời gian quá, bèn nghĩ ra kế để deploy tự động 1 cách đơn giản nhất
Ý tưởng bắt đầu nhen nhóm bằng việc từ source code mình dùng docker build ra image và push thẳng lên docker hub, và trên raspberry pi mình chạy script python để kiểm tra docker hub có update phiên bản image mới ko, nếu có thì pull image về và restart lại container 😅
Repository cho các bạn tham khảo: Repository Demo
Triển thôi nào 🤪
Tạo docker file để build image từ source nodejs
FROM node:latest WORKDIR /usr/src/app COPY package*.json ./ RUN npm install COPY dist/ ./dist/ EXPOSE 3000 CMD ["node", "dist/app.js"] Tạo github workflow để build và push image lên Docker Hub
name: Deploy to Docker Hub on: push: branches: - main jobs: send-notification-started: runs-on: ubuntu-latest steps: - name: Send Telegram Notification env: TELEGRAM_BOT_TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }} TELEGRAM_CHAT_ID: "${{ secrets.TELEGRAM_GROUP_DEPLOYMENTS }}" run: | curl -X POST \ https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage \ -d chat_id=${TELEGRAM_CHAT_ID} \ -d text="🚀 <b>Sms Bot</b> Deployment has started!" \ -d parse_mode=HTML build: runs-on: ubuntu-latest steps: - name: Checkout code uses: actions/checkout@v2 - name: Set up Node.js uses: actions/setup-node@v2 with: node-version: '14' - name: Install dependencies and build run: | npm install npm run build - name: Login to Docker Hub uses: docker/login-action@v1 with: username: ${{ secrets.DOCKER_USERNAME }} password: ${{ secrets.DOCKER_PASSWORD }} - name: Set up QEMU run: | sudo apt-get update sudo apt-get install -y qemu-user-static - name: Set up Docker Buildx uses: docker/setup-buildx-action@v1 - name: Build image for aarch64 run: | docker buildx create --name builder --use docker buildx inspect builder --bootstrap docker buildx build --platform linux/arm64 -t ${{ secrets.DOCKER_HUB_IMAGE_NAME }}:latest --push . send-notification-successful: needs: build runs-on: ubuntu-latest if: ${{ success() && needs.build.result == 'success' }} steps: - name: Send Telegram Notification env: TELEGRAM_BOT_TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }} TELEGRAM_CHAT_ID: "${{ secrets.TELEGRAM_GROUP_DEPLOYMENTS }}" run: | curl -X POST \ https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage \ -d chat_id=${TELEGRAM_CHAT_ID} \ -d text="🎉 <b>Sms Bot</b> Deployment to docker hub was successful!" \ -d parse_mode=HTML send-notification-failed: needs: build runs-on: ubuntu-latest if: ${{ failure() && needs.build.result == 'failure' }} steps: - name: Send Telegram Notification env: TELEGRAM_BOT_TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }} TELEGRAM_CHAT_ID: "${{ secrets.TELEGRAM_GROUP_DEPLOYMENTS }}" run: | curl -X POST \ https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage \ -d chat_id=${TELEGRAM_CHAT_ID} \ -d text="❌ Oh no! <b>Sms Bot</b> Deployment failed! There might be something wrong with the process. Please check it out! 🛠️🔍" \ -d parse_mode=HTML
Script python để pull và restart Docker image
import docker
import time
import logging
from logging.handlers import RotatingFileHandler
from telegram import Bot
import requests TELEGRAM_BOT_TOKEN = ''
TELEGRAM_CHAT_ID = '' def send_telegram_message(message): bot = Bot(token=TELEGRAM_BOT_TOKEN) bot.send_message(chat_id=TELEGRAM_CHAT_ID, text=message, parse_mode='HTML') log_formatter = logging.Formatter('%(asctime)s - %(levelname)s: %(message)s')
log_handler = RotatingFileHandler('logs.log', maxBytes=1024 * 1024, backupCount=5)
log_handler.setFormatter(log_formatter)
logger = logging.getLogger()
logger.addHandler(log_handler)
logger.setLevel(logging.INFO) def get_image_info(image_name): try: response = requests.get(f"https://hub.docker.com/v2/repositories/{image_name}/tags/latest") if response.status_code == 200: image_info = response.json() return image_info else: print(f"Failed to get image info, status code: {response.status_code}") return None except requests.RequestException as e: print(f"Request error: {e}") return None def check_and_update_image(container_name, image_name): client = docker.from_env() logger.info(f"Start pull image..") try: version = get_image_info(image_name) digest = image_name + '@' + version['digest'] container = client.containers.get(container_name) current_image_id = container.image.id current_image_digest = container.image.attrs['RepoDigests'][0] if 'RepoDigests' in container.image.attrs else None logger.info(f"current_image_id {current_image_id}") logger.info(f"current_image_digest {current_image_digest}") logger.info(f"digest {digest}") if current_image_digest != digest: logger.info("Updating...") send_telegram_message("🚀 <b>Auto Pull Docker - Raspberry pi</b> Deployment has started!") client.images.pull(image_name) container.stop() container.remove() client.containers.run(image_name, detach=True, name=container_name, volumes={ '/home/dongtran/py/.env': {'bind': '/usr/src/app/.env', 'mode': 'rw'} }) logger.info("Container update successful.") send_telegram_message("🚀 <b>Auto Pull Docker - Raspberry pi</b> Deployment on raspberry pi sucessful!") else: logger.info("No action.") except docker.errors.NotFound as e: logger.error(f"Container '{container_name}' not found: {e}") return except docker.errors.APIError as e: logger.error(f"APIError: {e}") return except docker.errors.ImageNotFound: logger.error(f"Image '{image_name}' not exist") return if __name__ == "__main__": container_name = "" image_name = "" while True: check_and_update_image(container_name, image_name) time.sleep(30)
Như vậy chúng ta đã có thể deploy ứng dụng 1 cách tự động trên raspberry pi rồi 🥲
Các bạn có thắc mắc comment bên dưới nha 😍😍