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This article mainly introduces "how to install Supervisor in Linux". In daily operation, I believe many people have doubts about how to install Supervisor in Linux. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how to install Supervisor in Linux". Next, please follow the editor to study!

Supervisor is a set of general process management program developed with Python, which can change an ordinary command line process into background daemon, monitor the status of the process, and restart automatically when an exception exits.

Install supervisor

Debian / Ubuntu can be installed directly through apt:

# apt-get install supervisor

Then, write a configuration file for the application we developed and let supervisor manage it. The configuration file for each process can be split separately and placed in the / etc/supervisor/conf.d/ directory with a .conf extension. For example, app.conf defines a gunicorn process:

[program:app] command=/usr/bin/gunicorn-w 1 wsgiapp:applicationdirectory=/srv/wwwuser=www-data

Where the process app is defined in [program:app], command is the command, directory is the current directory of the process, and user is the user identity under which the process is running.

Restart supervisor, let the configuration file take effect, and then run the command supervisorctl to start the process:

# supervisorctl start app

Stop the process:

# supervisorctl stop app

If you want to use variables on the command line, you need to write a shell script yourself:

#! / bin/sh/usr/bin/gunicorn-w `grep-c ^ processor / proc/ cpuinfo` wsgiapp:application

Then, add the x permission, and point the command to the shell script.

Supervisor has many options, and the default autorestart is unexpected (abnormal exit).

At this point, the study on "how to install Supervisor in Linux" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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