Shulou(Shulou.com)06/01 Report--

This article focuses on "what is the method of deploying Node.js in Docker". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what is the method of deploying Node.js in Docker"?

Project structure

`--docker-node |-- data |-- server |-- app.js |-- dockerfile |-- process.yml |-- package.json |-- docker-compose.yml

1. Create a node.js program

App.js

Const express = require ('express'); const app = express (); app.get (' /', (req, res) = > res.send ('hello worldview'); app.listen (3008)

2. Create dockerfile

From node:8.9-alpinerun mkdir-p / usr/src/appworkdir / usr/src/apprun npm set registry https://registry.npm.taobao.org/run npm install cmd [". / node_modules/pm2/bin/pm2-docker", "process.yml"]

From dockerfile, we can see that we run node applications through pm2-docker. With pm2, we can monitor file changes to achieve the effects of application restart and log storage. Here we need a process.yml configuration file, which can be used to view pm2 documents.

Process.yml

Apps:-script: 'app.js' name:' dokcer-node' exec_mode: 'fork' watch: true instances: 1 log_date_format:' yyyy-mm-dd hh:mm Z' ignore_watch: ['node_modules']

3. Create docker-compose.yml

In a production environment, we often use more than one container. We can manage multiple docker containers through a configuration file, and then use docker-compose to start, stop and restart the application.

Docker-compose.yml

Version: "3.0" services: server_node: container_name: server-node build: context:. / server volumes: -. / server:/usr/src/app ports: -" 3008container_name 3008 "environment:-tz=asia/shanghai portainer: image: portainer/portainer:1.11.4 container_name: portainer expose: -" 9000 "ports:--" 9000container_name 9000 "volumes:-/ var/run/ Docker.sock:/var/run/docker.sock -. / data/portainer:/data environment:-tz=asia/shanghai

4. Start the container

When the above files are created and we execute the following command, our image will be created and the container will be started

$docker-compose-f docker-compose.yml up-d

5. Test

1. Access local port 3008

2. Test contemporary code changes, node automatic restart function, we put "hello world!" Change it to "restartfully popular!" To refresh the page again

3. Use portainer to manage containers. Compared with the command line, we can easily and quickly view the container log, container configuration, status, restart, delete and other operations in the visual interface. We can access local port 9000 (configured in docker-compese.yml), and the results are as follows.

At this point, I believe you have a deeper understanding of "what is the method of deploying Node.js in Docker". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.