cgsnapshot - Man Page
generate the configuration file for given controllers
Synopsis
cgsnapshot [-h] [-s] [-t] [-b file] [-w file] [-f output_file] [controller] [...]
Description
cgsnapshot generates the cgconfig compatible configuration file for the given controllers. If no controller is set, then cgsnapshot shows all mounted hierarchies. The output is in the same format as the cgconfig.conf configuration file.
- -b file
Display only variables from the blacklist. The default location of the blacklist is /etc/cgsnapshot_blacklist.conf. This list contains all variables which should be ignored by the cgsnapshot If the variable is blacklisted, it will not be displayed. If it is not present on the blacklist, the whitelist is checked.
- -h, --help
display this help and exit
- -f, --file
Redirect the output to output_file
- -s, --silent
Ignore all warnings
- -t, --strict
Do not display the variables which are not on the whitelist
- -w file
Set the blacklist configuration file. This list contains all variables which should be displayed by cgsnapshot If the variable is not blacklisted, the whitelist is checked. If the variable is on the whitelist, it is displayed by cgsnapshot If the variable is not on the whitelist, the variable is displayed and a warning message is produced. By default the whitelist is not used.
The warning message can be omitted using the -s, --silent flag. If the -t, --strict flag is used, the variable which is not on the whitelist is not displayed.
- controller
defines the controller whose hierarchies will be output
Environment Variables
- CGROUP_LOGLEVEL
controls verbosity of the tool. Allowed values are DEBUG, INFO, WARNING or ERROR.
Files
- /etc/cgsnapshot_blacklist.conf
default blacklist
- /etc/cgsnapshot_whitelist.conf
default whitelist
- /etc/cgconfig.conf
default libcgroup configuration file
Examples
- cgsnapshot -s -f /etc/cgconfig.conf.cgsnapshot
create configuration file which contains all mounted controllers and all control groups which are on the actual system
- cgsnapshot -s -f /etc/cgconfig.conf.cgsnapshot cpu
create configuration file which contains hierarchy containing cpu controller and all its control groups on the actual system