What is installation supervisor? Work And Responsibility | How to Install and Configure Supervisor?
What is installation supervisor?, Work And Responsibility, How to Install and Configure Supervisor?
Supervisor is a client/server system that allows its users to monitor and control a number of processes on UNIX-like operating systems. It is used to control processes related to a project or a customer and is meant to start like any other program at boot time. Features of Supervisor includes simple, centralized, efficient, extensible, compatible and proven.
The components of Supervisor are:
supervisord: This is the server piece of supervisor is named supervisord. It is responsible for starting child programs at its own invocation, responding to commands from clients, restarting crashed or exited subprocesseses, logging its subprocess stdout and stderr output, and generating and handling “events” corresponding to points in subprocess lifetimes.
supervisorctl: The command-line client piece of the supervisor is named supervisorctl. It provides a shell-like interface to the features provided by supervisord.
Web Server: A (sparse) web user interface with functionality comparable to supervisorctl
XML-RPC Interface: The same HTTP server which serves the web UI serves up an XML-RPC interface that can be used to interrogate and control supervisor and the programs it runs.
In this guide, we will install the latest version of supervisor, show how to spawn and manage programs through supervisorctl, and lastly configure a web interface to manage our programs.