linux设置node环境变量和软链,linux下安装node环境以及配置软连接、pm2管理node进程...

安装

在官方网站下载linux系统的安装包，然后上传到服务器进行解压安装

执行解压命令：tar -xvf node-v6.10.0-linux-x64.tar.xz

重命名： mv node-v6.10.0-linux-x64 nodejs

确认一下nodejs下bin目录是否有node 和npm文件，如果有执行软连接，如果没有重新下载执行上边步骤；

通过源码编译，在官方网站下载Source code文件，

tar xvf node-v0.10.28.tar.gz

cd node-v0.10.28

./configure

make

make install

cp /usr/local/bin/node /usr/sbin/ 路径自己选择

查看当前安装的Node的版本 ： node -v

建立软连接,配置全局环境变量

ln -s /usr/local/nodejs/bin/npm /usr/local/bin/

ln -s /usr/local/nodejs/bin/node /usr/local/bin/

检查是否配置好

node -v

npm -v

使用pm2进行node进程管理

安装：npm i pm2 -g

运行：pm2 start app.js

停止所有进程：pm2 stop all

重启所有进程： pm2 restart all

pm2命令

# General

$ npm install pm2 -g # Install PM2

$ pm2 start app.js # Start, Daemonize and auto-restart application (Node)

$ pm2 start app.py # Start, Daemonize and auto-restart application (Python)

$ pm2 start npm -- start # Start, Daemonize and auto-restart Node application

# Cluster Mode (Node.js only)

$ pm2 start app.js -i 4 # Start 4 instances of application in cluster mode

# it will load balance network queries to each app

$ pm2 reload all # Zero Second Downtime Reload

$ pm2 scale [app-name] 10 # Scale Cluster app to 10 process

# Process Monitoring

$ pm2 list # List all processes started with PM2

$ pm2 list --sort= # Sort all processes started with PM2

$ pm2 monit # Display memory and cpu usage of each app

$ pm2 show [app-name] # Show all information about application

# Log management

$ pm2 logs # Display logs of all apps

$ pm2 logs [app-name] # Display logs for a specific app

$ pm2 logs --json # Logs in JSON format

$ pm2 flush

$ pm2 reloadLogs

# Process State Management

$ pm2 start app.js --name="api" # Start application and name it "api"

$ pm2 start app.js -- -a 34 # Start app and pass option "-a 34" as argument

$ pm2 start app.js --watch # Restart application on file change

$ pm2 start script.sh # Start bash script

$ pm2 start app.json # Start all applications declared in app.json

$ pm2 reset [app-name] # Reset all counters

$ pm2 stop all # Stop all apps

$ pm2 stop 0 # Stop process with id 0

$ pm2 restart all # Restart all apps

$ pm2 gracefulReload all # Gracefully reload all apps in cluster mode

$ pm2 delete all # Kill and delete all apps

$ pm2 delete 0 # Delete app with id 0

# Startup/Boot management

$ pm2 startup # Detect init system, generate and configure pm2 boot on startup

$ pm2 save # Save current process list

$ pm2 resurrect # Restore previously saved processes

$ pm2 unstartup # Disable and remove startup system

$ pm2 update # Save processes, kill PM2 and restore processes

$ pm2 generate # Generate a sample json configuration file

# Deployment

$ pm2 deploy app.json prod setup # Setup "prod" remote server

$ pm2 deploy app.json prod # Update "prod" remote server

$ pm2 deploy app.json prod revert 2 # Revert "prod" remote server by 2

# Module system

$ pm2 module:generate [name] # Generate sample module with name [name]

$ pm2 install pm2-logrotate # Install module (here a log rotation system)

$ pm2 uninstall pm2-logrotate # Uninstall module

$ pm2 publish # Increment version, git push and npm publish