Ubic::Manual::Intro - Initial introduction
version 1.33_01
Ubic is a perl-based service manager.
Ubic can run any program as a service and provides frontend script ubic to manage services.
ubic
Ubic includes centralized watchdog process which checks every service periodically and brings them back online if necessary.
Installing Ubic is easy.
Ubic
First, install the module using your favorite CPAN client, for example, cpanm Ubic.
cpanm Ubic
Second, invoke ubic-admin script to perform initial configuration: ubic-admin setup.
ubic-admin setup
If you don't like that setup process asks too many questions, you can invoke it with batch-mode option: ubic-admin setup --batch-mode.
ubic-admin setup --batch-mode
Alternatively, if you're using Debian or Ubuntu, you can install ubic .deb package from official launchpad PPA repository: https://launchpad.net/~berekuk/+archive/ubic.
Put this code in your service dir, i.e. in file /etc/ubic/service/example (or if you opted for home-dir installation, in ~/ubic/service/example):
use Ubic::Service::SimpleDaemon; Ubic::Service::SimpleDaemon->new( bin => 'sleep 1000', );
Start it:
$ ubic start example Starting example... started (pid 41209)
Check its status:
$ ubic status example running (pid 41209) ubic ubic.ping off ubic.update off ubic.watchdog running (pid 93226)
Or:
$ ubic status example example running (pid 41209)
Now let's see how watchdog works by killing the process (don't forget to change pid with the pid you got in status command above):
$ kill 41209 $ ubic status example example not running $ ubic-watchdog [Thu May 26 20:20:54 2011] example is broken, restarting
You don't have to run ubic-watchdog manually; it will do its work in background in a minute.
Ubic::Service::SimpleDaemon allows you to tune other service aspects other than bin. Check it out.
Series of blog posts written as tutorials
Don't forget to read Ubic::Manual::Overview, it explains everything else that ubic has to offer.
Vyacheslav Matyukhin <mmcleric@yandex-team.ru>
This software is copyright (c) 2011 by Yandex LLC.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
To install Ubic, copy and paste the appropriate command in to your terminal.
cpanm
CPAN shell
perl -MCPAN -e shell install Ubic
For more information on module installation, please visit the detailed CPAN module installation guide.