Description

This cookbook provides to install and configuring the utility Cgroups

Requirements

OS : Red Hat Enterprise Linux Server release 6.2 (Santiago)

Attributes

• default['cgroups']['controllers'] = [ "memory" , "cpu" ]
• default['cgroups']['group_name'] = "foobar"
• default['cgroups']['parameters'] = [ "memory.limit_in_bytes = 256M", "memory.memsw.limit_in_bytes = 256M" ]
• default['cgroups']['task-uid'] = "root"
• default['cgroups']['task-gid'] = "root"
• default['cgroups']['admin-uid'] = "root"
• default['cgroups']['admin-gid'] = "root"
• default['cgroups']['users'] = [ "root" ]
• default['cgroups']['command'] = "/opt/myprogram/bin/mycommand"
• default['cgroups']['service'] = "fooService"

Template

• cgconfig.conf.erb

the configuration file /etc/cgconfig.conf

• cgrules.conf.erb

the configuration file /etc/cgrules.conf

At moment this cookbook has some limitations.

1. is not possible configure more groups
2. is not possible configure for users some different controllers.. but work in progress.

Usage

1. after launch cgroups recipe check cat /cgroup/memory/myfoogroup/tasks you should see the PIDs of your target processes
2. after a change in /etc/cgconfig.conf or /etc/cgrules.conf the recipe restarts a specify service (only if that service exists)