Merge "Extract the nova wait functionality into its own agent"
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ocf/nova-compute-wait
Executable file
236
ocf/nova-compute-wait
Executable file
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#!/bin/sh
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#
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#
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# nova-compute-wait agent manages compute daemons.
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#
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# Copyright (c) 2015
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of version 2 of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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#
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# Further, this software is distributed without any warranty that it is
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# free of the rightful claim of any third person regarding infringement
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# or the like. Any license provided herein, whether implied or
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# otherwise, applies only to this software file. Patent licenses, if
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# any, provided herein do not apply to combinations of this program with
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# other software, or any other product whatsoever.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
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#
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#######################################################################
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# Initialization:
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###
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: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
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. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
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###
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: ${__OCF_ACTION=$1}
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#######################################################################
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meta_data() {
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cat <<END
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<?xml version="1.0"?>
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<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
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<resource-agent name="nova-compute-wait" version="1.0">
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<version>1.0</version>
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<longdesc lang="en">
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OpenStack Nova Compute Server.
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</longdesc>
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<shortdesc lang="en">OpenStack Nova Compute Server</shortdesc>
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<parameters>
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<parameter name="auth_url" unique="0" required="1">
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<longdesc lang="en">
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Deprecated option not in use
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</longdesc>
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<shortdesc lang="en">Deprecated</shortdesc>
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<content type="string" default="" />
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</parameter>
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<parameter name="username" unique="0" required="1">
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<longdesc lang="en">
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Deprecated option not in use
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</longdesc>
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<shortdesc lang="en">Deprecated</shortdesc>
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</parameter>
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<parameter name="password" unique="0" required="1">
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<longdesc lang="en">
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Deprecated option not in use
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</longdesc>
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<shortdesc lang="en">Deprecated</shortdesc>
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<content type="string" default="" />
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</parameter>
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<parameter name="tenant_name" unique="0" required="1">
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<longdesc lang="en">
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Deprecated option not in use
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</longdesc>
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<shortdesc lang="en">Deprecated</shortdesc>
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<content type="string" default="" />
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</parameter>
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<parameter name="domain" unique="0" required="0">
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<longdesc lang="en">
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DNS domain in which hosts live, useful when the cluster uses short names and nova uses FQDN
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</longdesc>
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<shortdesc lang="en">DNS domain</shortdesc>
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<content type="string" default="" />
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</parameter>
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<parameter name="endpoint_type" unique="0" required="0">
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<longdesc lang="en">
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Deprecated option not in use
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</longdesc>
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<shortdesc lang="en">Deprecated</shortdesc>
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<content type="string" default="" />
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</parameter>
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<parameter name="no_shared_storage" unique="0" required="0">
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<longdesc lang="en">
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Deprecated option not in use
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</longdesc>
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<shortdesc lang="en">Deprecated</shortdesc>
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<content type="boolean" default="0" />
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</parameter>
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<parameter name="evacuation_delay" unique="0" required="0">
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<longdesc lang="en">
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How long to wait for nova to finish evacuating instances elsewhere
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before starting nova-compute. Only used when the agent detects
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evacuations might be in progress.
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You may need to increase the start timeout when increasing this value.
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</longdesc>
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<shortdesc lang="en">Delay to allow evacuations time to complete</shortdesc>
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<content type="integer" default="120" />
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</parameter>
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</parameters>
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<actions>
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<action name="start" timeout="600" />
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<action name="stop" timeout="300" />
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<action name="monitor" timeout="20" interval="10" depth="0"/>
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<action name="validate-all" timeout="20" />
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<action name="meta-data" timeout="5" />
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</actions>
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</resource-agent>
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END
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}
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#######################################################################
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# don't exit on TERM, to test that lrmd makes sure that we do exit
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trap sigterm_handler TERM
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sigterm_handler() {
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ocf_log info "They use TERM to bring us down. No such luck."
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return
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}
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nova_usage() {
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cat <<END
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usage: $0 {start|stop|monitor|validate-all|meta-data}
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Expects to have a fully populated OCF RA-compliant environment set.
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END
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}
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nova_start() {
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state=$(attrd_updater -p -n evacuate -N ${NOVA_HOST} | sed -e 's/.*value=//' | tr -d '"' )
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if [ "x$state" = x ]; then
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: never been fenced
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elif [ "x$state" = xno ]; then
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: has been evacuated, however it could have been 1s ago
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ocf_log info "Pausing to give evacuations from ${NOVA_HOST} time to complete"
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sleep ${OCF_RESKEY_evacuation_delay}
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else
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ocf_log info "Waiting for pending evacuations from ${NOVA_HOST}"
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while [ "x$state" != "xno" ]; do
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state=$(attrd_updater -p -n evacuate -N ${NOVA_HOST} | sed -e 's/.*value=//' | tr -d '"' )
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sleep 5
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done
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ocf_log info "Pausing to give evacuations from ${NOVA_HOST} time to complete"
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sleep ${OCF_RESKEY_evacuation_delay}
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fi
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return $OCF_SUCCESS
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}
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nova_stop() {
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return $OCF_SUCCESS
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}
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nova_monitor() {
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return $OCF_SUCCESS
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}
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nova_notify() {
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return $OCF_SUCCESS
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}
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nova_validate() {
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rc=$OCF_SUCCESS
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check_binary crudini
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check_binary nova-compute
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if [ ! -f /etc/nova/nova.conf ]; then
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ocf_exit_reason "/etc/nova/nova.conf not found"
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exit $OCF_ERR_CONFIGURED
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fi
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NOVA_HOST=$(crudini --get /etc/nova/nova.conf DEFAULT host 2>/dev/null)
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if [ $? = 1 ]; then
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short_host=$(uname -n | awk -F. '{print $1}')
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if [ "x${OCF_RESKEY_domain}" != x ]; then
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NOVA_HOST=${short_host}.${OCF_RESKEY_domain}
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else
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NOVA_HOST=$(uname -n)
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fi
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fi
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if [ $rc != $OCF_SUCCESS ]; then
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exit $rc
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fi
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return $rc
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}
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: ${OCF_RESKEY_evacuation_delay=120}
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case $__OCF_ACTION in
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meta-data) meta_data
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exit $OCF_SUCCESS
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;;
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usage|help) nova_usage
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exit $OCF_SUCCESS
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;;
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esac
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case $__OCF_ACTION in
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start) nova_validate; nova_start;;
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stop) nova_stop;;
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monitor) nova_validate; nova_monitor;;
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notify) nova_notify;;
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validate-all) exit $OCF_SUCCESS;;
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*) nova_usage
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exit $OCF_ERR_UNIMPLEMENTED
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;;
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esac
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rc=$?
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ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
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exit $rc
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