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cgexec(1) [centos man page]

CGEXEC(1)							 libcgroup Manual							 CGEXEC(1)

cgexec - run the task in given control groups SYNOPSIS
cgexec [-h] [-g <controllers>:<path>] [--sticky] command [arguments] DESCRIPTION
The cgexec program executes the task command with arguments arguments in the given control groups. -g <controllers>:<path> defines the control groups in which the task will be run. controllers is a list of controllers and path is the relative path to control groups in the given controllers list. This flag can be used multiple times to define multiple pairs of lists of controllers and relative paths. Instead of the list of all mounted controllers, the wildcard b"*b" can be used. If this option is not used, cgexec will automatically place the task in the right cgroup based on /etc/cgrules.conf. If /etc/cgrules.conf configuration file is used, there can be used template names. Then the control group name contains a template in destination tag (see cgrules.conf (5)) and if the cgroup does not exist in execution time, it is created, based on /etc/cgcon- fig.conf specification. If the specifications are not present the group is created with the default kernel values. -h, --help Display this help and exit. --sticky If running the task command with this option, the daemon of service cgred (cgrulesengd process) does not change both the task of the command and the child tasks. Without this option, the daemon does not change the task of the command but it changes the child tasks to the right cgroup based on /etc/cgrules.conf automatically. EXAMPLES
cgexec -g *:test1 ls runs command ls in control group test1 in all mounted controllers. cgexec -g cpu,memory:test1 ls -l runs command ls -l in control group test1 in controllers cpu and memory. cgexec -g cpu,memory:test1 -g swap:test2 ls -l runs command ls -l in control group test1 in controllers cpu and memory and control group test2 in controller swap. ENVIRONMENT VARIABLES
CGROUP_LOGLEVEL controls verbosity of the tool. Allowed values are DEBUG, INFO, WARNING or ERROR. FILES
/etc/cgrules.conf default libcgroup configuration file SEE ALSO
cgrules.conf (5) Linux 2009-03-15 CGEXEC(1)

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CGRULES.CONF(5) 						 libcgroup Manual						   CGRULES.CONF(5)

cgrules.conf - libcgroup configuration file DESCRIPTION
cgrules.conf configuration file is used by libcgroups to define control groups to which a process belongs. The file contains a list of rules which assign to a defined group/user a control group in a subsystem (or control groups in subsystems). Rules have two formats: <user> <controllers> <destination> <user>:<process name> <controllers> <destination> Where: user can be: - a user name - a group name with @group syntax - the wildcard '*', for any user or group - '%', which is equivalent to "ditto" (useful for multi-line rules where different cgroups need to be specified for various hierarchies for a single user) process name is optional and it can be: - a process name - a full command path of a process controllers can be: - comma separated controller names (no spaces) or - * (for all mounted controllers) destination can be: - path relative to the controller hierarchy (ex. pgrp1/gid1/uid1) - following strings called "templates" and will get expanded %u username, uid if name resolving fails %U uid %g group name, gid if name resolving fails %G gid %p process name, pid if name not available %P pid '' can be used to escape '%' First rule which matches the criteria will be executed. Any text starting with '#' is considered as a start of comment line and is ignored. If the destination contains template string, the control group can be created on-fly. In time when some process wants to use the template rule which leads to control group (see cgexec (1)) and the control group does not exist, the group is created. The template control group parameters can be specified in cgconfig.conf configuration file. See (cgconfig.conf (5)). If the template definition is not found there created group have default kernel setting. EXAMPLES
student devices /usergroup/students Student's processes in the 'devices' subsystem belong to the control group /usergroup/students. student:cp devices /usergroup/students/cp When student executes 'cp' command, the processes in the 'devices' subsystem belong to the control group /usergroup/students/cp. @admin * admingroup/ Processes started by anybody from admin group no matter in what subsystem belong to the control group admingroup/. peter cpu test1/ % memory test2/ The first line says Peter's task for cpu controller belongs to test1 control group. The second one says Peter's tasks for memory controller belong to test2/ control group. * * default/ All processes in any subsystem belong to the control group default/. Since the earliest matched rule is applied, it makes sense to have this line at the end of the list. It will put a task which was not mentioned in the previous rules to default/ control group. @students cpu,cpuacct students/%u Processes in cpu and cpuacct subsystems started by anybody from students group belong to group students/name. Where "name" is user name of owner of the process. FILES
/etc/cgrules.conf default libcgroup configuration file SEE ALSO
cgconfig.conf (5), cgclassify (1), cgred.conf (5) BUGS
Linux 2009-03-10 CGRULES.CONF(5)
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