upstream/openstack/python-neutron/centos/files/NetnsCleanup.ocf_ra

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#!/bin/sh
#
# Neutron Netns Cleanup OCF RA.
# Handles the netns cleanup at start / stop of the agent service
# group
#
# Copyright (c) 2014 Red Hat
#
# This is a one-shot OCF resource agent with the next properties:
#
# * It wraps the init.d script to make an OCF-RA
# * It maps the start, stop, monitor to start, stop , status, and provides
# the specific OCF ones.
# * It cleans unused resources during start (system or agents startup)
# * It cleans everything on stop (agents migration to other hosts)
# * Once started, it will respond with status = OK
# * Once stopped, it will respond with status = DEAD
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like. Any license provided herein, whether implied or
# otherwise, applies only to this software file. Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
#
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
: ${OCF_NEUTRON_DIR=${OCF_ROOT}/lib/neutron}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
WRAPPED_INITD_SCRIPT=${OCF_NEUTRON_DIR}/neutron-netns-cleanup
#######################################################################
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="NetnsCleanup" version="0.9">
<version>1.0</version>
<longdesc lang="en">
This resource agent does nothing during execution, only executes
a cleanup during start, and a force cleanup during stop of
the netns resources generated by neutron agents.
</longdesc>
<shortdesc lang="en">neutron netns cleanup resource agent</shortdesc>
<parameters>
</parameters>
<actions>
<action name="start" timeout="40" />
<action name="stop" timeout="300" />
<action name="monitor" timeout="20" interval="10" depth="0" />
<action name="reload" timeout="20" />
<action name="migrate_to" timeout="20" />
<action name="migrate_from" timeout="20" />
<action name="meta-data" timeout="5" />
<action name="validate-all" timeout="20" />
</actions>
</resource-agent>
END
}
#######################################################################
netns_cleanup_usage() {
cat <<END
usage: $0 {start|stop|monitor|migrate_to|migrate_from|validate-all|meta-data}
Expects to have a fully populated OCF RA-compliant environment set.
END
}
netns_cleanup_start() {
netns_cleanup_monitor
if [ $? = $OCF_SUCCESS ]; then
return $OCF_SUCCESS
fi
$WRAPPED_INITD_SCRIPT start && return $OCF_SUCCESS
return $OCF_ERR_GENERIC
}
netns_cleanup_stop() {
netns_cleanup_monitor
if [ $? = $OCF_SUCCESS ]; then
$WRAPPED_INITD_SCRIPT stop && return $OCF_SUCCESS
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
netns_cleanup_monitor() {
# Monitor _MUST!_ differentiate correctly between running
# (SUCCESS), failed (ERROR) or _cleanly_ stopped (NOT RUNNING).
# That is THREE states, not just yes/no.
$WRAPPED_INITD_SCRIPT status && return $OCF_SUCCESS
return $OCF_NOT_RUNNING
}
netns_cleanup_validate() {
return $OCF_SUCCESS
}
case $__OCF_ACTION in
meta-data) meta_data
exit $OCF_SUCCESS
;;
start) netns_cleanup_start;;
stop) netns_cleanup_stop;;
monitor) netns_cleanup_monitor;;
migrate_to) ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} to ${OCF_RESKEY_CRM_meta_migrate_target}."
netns_cleanup_stop
;;
migrate_from) ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} from ${OCF_RESKEY_CRM_meta_migrate_source}."
netns_cleanup_start
;;
reload) ocf_log info "Reloading ${OCF_RESOURCE_INSTANCE} ..."
;;
validate-all) netns_cleanup_validate;;
usage|help) netns_cleanup_usage
exit $OCF_SUCCESS
;;
*) netns_cleanup_usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
rc=$?
ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
exit $rc