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.\" Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
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.\" Written by Ivana Hutarova Varekova <varekova@redhat.com>
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.TH CGSNAPSHOT 1 2010-07-28 "Linux" "libcgroup Manual"
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.SH NAME
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cgsnapshot \- generate the configuration file for given controllers
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.SH SYNOPSIS
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\fBcgsnapshot\fR [\fB\-h\fR] [\fB\-s\fR] [\fB\-t\fR] [\fB\-b\fR \fIfile\fR]
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[\fB\-w\fR \fIfile\fR] [\fB\-f\fR \fIoutput_file\fR] [\fBcontroller\fR] [...]
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.SH DESCRIPTION
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\fBcgsnapshot\fR
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generates the cgconfig compatible configuration file
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for the given controllers.
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If no controller is set, then
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cgsnapshot shows all mounted hierarchies.
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The output is in the same format as the
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.B cgconfig.conf
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configuration file.
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.TP
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.B \-b file
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Display only variables from the blacklist.
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The default location of the blacklist is
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.B /etc/cgsnapshot_blacklist.conf.
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This list contains all variables which should be ignored by the
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.B cgsnapshot
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.
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If the variable is blacklisted, it will not be displayed.
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If it is not present on the blacklist, the whitelist
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is checked.
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.TP
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.B \-h, \-\-help
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display this help and exit
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.TP
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.B \-f, \-\-file
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Redirect the output to output_file
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.TP
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.B \-s, \-\-silent
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Ignore all warnings
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.TP
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.B \-t, \-\-strict
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Do not display the variables which are not on the whitelist
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.TP
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.B \-w file
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Set the blacklist configuration file.
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This list contains all variables which should be displayed by
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.B cgsnapshot
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.
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If the variable is not blacklisted, the whitelist is checked.
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If the variable is on the whitelist, it is displayed by
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.B cgsnapshot
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.
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If the variable is not on the whitelist,
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the variable is displayed and a warning message is produced.
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By default the whitelist is not used.
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The warning message can be omitted using the
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.B \-s, \-\-silent
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flag.
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If the
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.B \-t, \-\-strict
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flag is used, the variable which is not on the whitelist is
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not displayed.
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.TP
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.B controller
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defines the controller whose hierarchies will be
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output
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.SH ENVIRONMENT VARIABLES
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.TP
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.B CGROUP_LOGLEVEL
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controls verbosity of the tool. Allowed values are \fBDEBUG\fR,
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\fBINFO\fR, \fBWARNING\fR or \fBERROR\fR.
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.SH FILES
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.TP
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.B /etc/cgsnapshot_blacklist.conf
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default blacklist
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.TP
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.B /etc/cgsnapshot_whitelist.conf
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default whitelist
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.TP
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.B /etc/cgconfig.conf
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default libcgroup configuration file
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.SH SEE ALSO
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cgconfig.conf (5)
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