Golang应用程序是否有类似PM2的流程管理解决方案？ [关闭]

Question

I used nodejs before, but I switched to go recently, I have no idea about managing the go process, is there anything like PM2 ?

Answer 1

Development Environment

For development, you'd probably need process manager that also monitor the file changes and live-reload your server binary.

I'm used to Godegansta's gin for such job for web server / api server development. There is also fresh, reflex and perhaps some others.

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Production Environment

I'm using systemd to manage my Golang application process on Linux in production environment.

Define the Unit

This is my Unit File looks like this:

[Unit]
StopWhenUnneeded=true

[Install]
WantedBy=multi-user.target

[Service]
ExecStart=/usr/local/bin/<MY_GO_APP>
WorkingDirectory=/home/user/<MY_GO_APP_HOME_DIR>
User=<MY_GO_APP_USER>
Restart=always
RestartSec=5
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=%n

Create this file as /usr/lib/systemd/system/my_app.service (for Ubuntu), then run:

systemctl start my_app.service

would automatically start the service. As configured, systemd will always restart your process if it stopped.

Usual Operations

To have it always on when the machine starts:

systemctl enable my_app.service

If you change your unit file after the first start or enable, you need to run:

systemctl daemon-reload

To see the status of the process, run:

systemctl status my_app.service

To see the STDOUT of the process, run:

journalctl -f -u my_app.service

For further help, please read the manual page.