doc/examples/gnt-config-backup.in - ganeti - Git at Google

 #!/bin/bash

 # Copyright (C) 2009 Google Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful, but
 # WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 # 02110-1301, USA.


 # This is an example ganeti script that should be run from cron on all
 # nodes; it will archive the ganeti configuration into a separate
 # directory tree via GIT, so that it is possible to restore the
 # history of cluster configuration changes if needed

 # The script requires the lockfile-progs package and the git software

 # Note that since Ganeti 2.0, config.data is the authoritative source
 # of configuration; as such, we don't need to backup the ssconf files,
 # and the other files (server.pem, rapi.pem, hmac.key, known_hosts,
 # etc.) do no hold critical data (they can be regenerated at will, as
 # long as they are synchronised).

 set -e

 LOCALSTATEDIR=@LOCALSTATEDIR@
 SYSCONFDIR=@SYSCONFDIR@

 GANETIDIR=${LOCALSTATEDIR}/lib/ganeti
 CONFIGDATA=${GANETIDIR}/config.data

 GNTBKDIR=${LOCALSTATEDIR}/lib/gnt-config-backup
 LOCKFILE=${LOCALSTATEDIR}/lock/gnt-config-backup

 # exit if no ganeti config file (no cluster configured, or not M/MC)
 test -f $CONFIGDATA || exit 0

 # We use a simple lock method, since our script should be fast enough
 # (no network, not talking to ganeti-masterd) that we don't expect to
 # run over 5 minutes if the system is healthy
 lockfile-create "$LOCKFILE" || exit 1
 trap 'lockfile-remove $LOCKFILE' EXIT

 test -d $GNTBKDIR || mkdir $GNTBKDIR

 cd $GNTBKDIR

 test -d .git || git init

 cp -f $CONFIGDATA config.data
 git add config.data
 git commit -q -m "Automatic commit by gnt-config-backup"

 touch last_run
	#!/bin/bash

	# Copyright (C) 2009 Google Inc.
	#
	# This program is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License as published by
	# the Free Software Foundation; either version 2 of the License, or
	# (at your option) any later version.
	#
	# This program is distributed in the hope that it will be useful, but
	# WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	# General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program; if not, write to the Free Software
	# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	# 02110-1301, USA.


	# This is an example ganeti script that should be run from cron on all
	# nodes; it will archive the ganeti configuration into a separate
	# directory tree via GIT, so that it is possible to restore the
	# history of cluster configuration changes if needed

	# The script requires the lockfile-progs package and the git software

	# Note that since Ganeti 2.0, config.data is the authoritative source
	# of configuration; as such, we don't need to backup the ssconf files,
	# and the other files (server.pem, rapi.pem, hmac.key, known_hosts,
	# etc.) do no hold critical data (they can be regenerated at will, as
	# long as they are synchronised).

	set -e

	LOCALSTATEDIR=@LOCALSTATEDIR@
	SYSCONFDIR=@SYSCONFDIR@

	GANETIDIR=${LOCALSTATEDIR}/lib/ganeti
	CONFIGDATA=${GANETIDIR}/config.data

	GNTBKDIR=${LOCALSTATEDIR}/lib/gnt-config-backup
	LOCKFILE=${LOCALSTATEDIR}/lock/gnt-config-backup

	# exit if no ganeti config file (no cluster configured, or not M/MC)
	test -f $CONFIGDATA \|\| exit 0

	# We use a simple lock method, since our script should be fast enough
	# (no network, not talking to ganeti-masterd) that we don't expect to
	# run over 5 minutes if the system is healthy
	lockfile-create "$LOCKFILE" \|\| exit 1
	trap 'lockfile-remove $LOCKFILE' EXIT

	test -d $GNTBKDIR \|\| mkdir $GNTBKDIR

	cd $GNTBKDIR

	test -d .git \|\| git init

	cp -f $CONFIGDATA config.data
	git add config.data
	git commit -q -m "Automatic commit by gnt-config-backup"

	touch last_run