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openstack-virtual-ip
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#!/bin/sh
#
#
# OCF resource agent to move a virtual address in an Openstack tenant.
#
# Copyright (c) 2018 Mathieu GRZYBEK
# Based on code of Markus Guertler
# All Rights Reserved.
#
# 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_FUNCTIONS_DIR}/ocf-shellfuncs
. ${OCF_FUNCTIONS_DIR}/openstack-common.sh
# Defaults
#######################################################################
USAGE="usage: $0 {start|stop|status|meta-data}";
###############################################################################
###############################################################################
#
# Functions
#
###############################################################################
metadata() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="openstack-virtual-ip" version="2.0">
<version>1.0</version>
<longdesc lang="en">
Resource Agent to move a virtual IP address from an instance to another one
by adding an allowed-address pair associated with an instance port.
It relies on attributes given by openstack-info resource agent (openstack_ports, openstack_id attributes).
The attribute called "openstack_virtual_ip" is updated.
</longdesc>
<shortdesc lang="en">Move a virtual IP</shortdesc>
<parameters>
END
common_meta_data
cat <<END
<parameter name="ip" required="1">
<longdesc lang="en">
Virtual IP Address.
</longdesc>
<shortdesc lang="en">IP Address</shortdesc>
<content type="string" />
</parameter>
<parameter name="subnet_id" required="1">
<longdesc lang="en">
Subnet Identifier to use to attach the address.
</longdesc>
<shortdesc lang="en">Subnet ID</shortdesc>
<content type="string" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="180s" />
<action name="stop" timeout="180s" />
<action name="monitor" depth="0" timeout="180s" interval="60s" />
<action name="validate-all" timeout="5s" />
<action name="meta-data" timeout="5s" />
</actions>
</resource-agent>
END
}
osvip_port_id() {
# Get port_id from subnet_id
node_port_ids=$(${HA_SBIN_DIR}/attrd_updater --query -n openstack_ports -N $(crm_node -n) \
| awk '{gsub("value=","") ; gsub("\"","") ; print $NF}')
node_port_id=$(echo $node_port_ids \
| tr ',' '\n' \
| awk -F: "/$OCF_RESKEY_subnet_id/ {print \$2}")
echo ${node_port_id}
}
osvip_validate() {
check_binary "$OCF_RESKEY_openstackcli"
get_config
${HA_SBIN_DIR}/attrd_updater --query -n openstack_ports -N $(crm_node -n) > /dev/null 2>&1
if [ $? -ne 0 ] && ! ocf_is_probe; then
ocf_log warn "attr_updater failed to get openstack_ports attribute of node $OCF_RESOURCE_INSTANCE"
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
osvip_monitor() {
local result
node_port_id=$(osvip_port_id)
result=$(run_openstackcli "port show \
--format value \
--column allowed_address_pairs \
${node_port_id}")
if echo "$result" | grep -q "$OCF_RESKEY_ip"; then
${HA_SBIN_DIR}/attrd_updater ${OCF_RESKEY_delay} -n openstack_virtual_ip -v $OCF_RESKEY_ip
return $OCF_SUCCESS
fi
${HA_SBIN_DIR}/attrd_updater ${OCF_RESKEY_delay} -D -n openstack_virtual_ip
ocf_log warn "$OCF_RESKEY_ip is not attached to any fixed address"
return $OCF_NOT_RUNNING
}
osvip_stop() {
node_port_id=$(osvip_port_id)
ocf_log info "Bringing down IP address $OCF_RESKEY_ip"
osvip_monitor
if [ $? = $OCF_NOT_RUNNING ]; then
ocf_log info "Address $OCF_RESKEY_ip already down"
return $OCF_SUCCESS
fi
mac_address=$(run_openstackcli "port show \
--format value \
--column mac_address \
$node_port_id")
echo "${mac_address}" | grep -q -P "^([0-9a-f]{2}:){5}[0-9a-f]{2}$"
if [ $? -ne 0 ]; then
ocf_log error "MAC address '${mac_address}' is not valid."
return $OCF_ERR_GENERIC
fi
if ! run_openstackcli "port unset \
--allowed-address \
ip-address=$OCF_RESKEY_ip,mac-address=${mac_address} \
$node_port_id"; then
return $OCF_ERR_GENERIC
fi
osvip_monitor
if [ $? != $OCF_NOT_RUNNING ]; then
ocf_log error "Couldn't unset IP address $OCF_RESKEY_ip."
return $OCF_ERR_GENERIC
fi
ocf_log info "Successfully brought down $OCF_RESKEY_ip"
return $OCF_SUCCESS
}
osvip_start() {
node_port_id=$(osvip_port_id)
osvip_monitor
if [ $? = $OCF_SUCCESS ]; then
ocf_log info "$OCF_RESKEY_ip already started"
return $OCF_SUCCESS
fi
ocf_log info "Moving IP address $OCF_RESKEY_ip to port ID $node_port_id"
run_openstackcli "port set \
--allowed-address ip-address=$OCF_RESKEY_ip \
$node_port_id"
if [ $? != $OCF_SUCCESS ]; then
ocf_log error "$OCF_RESKEY_ip Cannot be set to port $node_port_id"
return $OCF_ERR_GENERIC
fi
osvip_monitor
if [ $? != $OCF_SUCCESS ]; then
ocf_log error "$OCF_RESKEY_ip Cannot be set to port $node_port_id"
return $OCF_ERR_GENERIC
fi
ocf_log info "Successfully brought up $OCF_RESKEY_ip"
return $OCF_SUCCESS
}
###############################################################################
#
# MAIN
#
###############################################################################
case $__OCF_ACTION in
meta-data)
metadata
exit $OCF_SUCCESS
;;
usage|help)
echo $USAGE
exit $OCF_SUCCESS
;;
esac
if ! ocf_is_root; then
ocf_log err "You must be root for $__OCF_ACTION operation."
exit $OCF_ERR_PERM
fi
case $__OCF_ACTION in
start)
osvip_validate || exit $?
osvip_start;;
stop)
osvip_validate || exit $?
osvip_stop;;
monitor)
osvip_validate || exit $?
osvip_monitor;;
validate-all)
osvip_validate
;;
*)
echo $USAGE
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
exit $?
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