Page MenuHomeClusterLabs Projects
Files F4833341

awsvip
No OneTemporary
Actions

awsvip
View Options

#!/bin/sh
#
#
# Manage Secondary Private IP with Pacemaker
#
#
# Copyright 2016 guessi <guessi@gmail.com>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
#
# Prerequisites:
#
# - preconfigured AWS CLI running environment (AccessKey, SecretAccessKey, etc.)
# - a reserved secondary private IP address for EC2 instances high availablity
# - IAM user role with the following permissions:
# * DescribeInstances
# * AssignPrivateIpAddresses
# * UnassignPrivateIpAddresses
#
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
#######################################################################
#
# Defaults
#
OCF_RESKEY_awscli_default="/usr/bin/awscli"
OCF_RESKEY_api_delay_default="1"
: ${OCF_RESKEY_awscli=${OCF_RESKEY_awscli_default}}
: ${OCF_RESKEY_api_delay=${OCF_RESKEY_api_delay_default}}
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="awsvip" version="0.9">
<version>1.0</version>
<longdesc lang="en">
description
</longdesc>
<shortdesc lang="en"></shortdesc>
<parameters>
<parameter name="awscli" unique="0">
<longdesc lang="en">
command line tools for aws services
</longdesc>
<shortdesc lang="en">aws cli tools</shortdesc>
<content type="string" default="${OCF_RESKEY_awscli_default}" />
</parameter>
<parameter name="secondary_private_ip" unique="1" required="1">
<longdesc lang="en">
reserved secondary private ip for ec2 instance
</longdesc>
<shortdesc lang="en">reserved secondary private ip for ec2 instance</shortdesc>
<content type="string" default="" />
</parameter>
<parameter name="api_delay" unique="0">
<longdesc lang="en">
a short delay between API calls, to avoid sending API too quick
</longdesc>
<shortdesc lang="en">a short delay between API calls</shortdesc>
<content type="integer" default="${OCF_RESKEY_api_delay_default}" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="10" />
<action name="stop" timeout="10" />
<action name="monitor" timeout="10" interval="20" depth="0" />
<action name="reload" timeout="10" />
<action name="migrate_to" timeout="10" />
<action name="migrate_from" timeout="10" />
<action name="meta-data" timeout="5" />
<action name="validate" timeout="10" />
<action name="validate-all" timeout="10" />
</actions>
</resource-agent>
END
}
#######################################################################
awsvip_usage() {
cat <<END
usage: $0 {start|stop|monitor|migrate_to|migrate_from|validate|validate-all|meta-data}
Expects to have a fully populated OCF RA-compliant environment set.
END
}
awsvip_start() {
awsvip_monitor && return $OCF_SUCCESS
$AWSCLI ec2 assign-private-ip-addresses \
--network-interface-id ${NETWORK_ID} \
--private-ip-addresses ${SECONDARY_PRIVATE_IP} \
--allow-reassignment
RET=$?
# delay to avoid sending request too fast
sleep ${OCF_RESKEY_api_delay}
if [ $RET -ne 0 ]; then
return $OCF_NOT_RUNNING
fi
ocf_log info "secondary_private_ip have been successfully bring up (${SECONDARY_PRIVATE_IP})"
return $OCF_SUCCESS
}
awsvip_stop() {
awsvip_monitor || return $OCF_SUCCESS
$AWSCLI ec2 unassign-private-ip-addresses \
--network-interface-id ${NETWORK_ID} \
--private-ip-addresses ${SECONDARY_PRIVATE_IP}
RET=$?
# delay to avoid sending request too fast
sleep ${OCF_RESKEY_api_delay}
if [ $RET -ne 0 ]; then
return $OCF_NOT_RUNNING
fi
ocf_log info "secondary_private_ip have been successfully bring down (${SECONDARY_PRIVATE_IP})"
return $OCF_SUCCESS
}
awsvip_monitor() {
$AWSCLI ec2 describe-instances --instance-id "${INSTANCE_ID}" | grep -q "${SECONDARY_PRIVATE_IP}"
RET=$?
if [ $RET -ne 0 ]; then
return $OCF_NOT_RUNNING
fi
return $OCF_SUCCESS
}
awsvip_validate() {
check_binary ${AWSCLI}
if [ -z "${INSTANCE_ID}" ]; then
ocf_log info "instant_id could not been found, is this EC2 instance?"
return $OCF_GENERIC
fi
return $OCF_SUCCESS
}
: ${OCF_RESKEY_awscli="/usr/bin/aws"}
AWSCLI="${OCF_RESKEY_awscli}"
SECONDARY_PRIVATE_IP="${OCF_RESKEY_secondary_private_ip}"
INSTANCE_ID="$(curl -s http://169.254.169.254/latest/meta-data/instance-id)"
NETWORK_ID="$($AWSCLI ec2 describe-instances --instance-id ${INSTANCE_ID} | grep -m 1 'eni' | awk -F'"' '{print$4}')"
case $__OCF_ACTION in
meta-data)
meta_data
exit $OCF_SUCCESS
;;
start)
awsvip_start
;;
stop)
awsvip_stop
;;
monitor)
awsvip_monitor
;;
migrate_to)
ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} to ${OCF_RESKEY_CRM_meta_migrate_target}."
awsvip_stop
;;
migrate_from)
ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} from ${OCF_RESKEY_CRM_meta_migrate_source}."
awsvip_start
;;
reload)
ocf_log info "Reloading ${OCF_RESOURCE_INSTANCE} ..."
;;
validate|validate-all)
awsvip_validate
;;
usage|help)
awsvip_usage
exit $OCF_SUCCESS
;;
*)
awsvip_usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
rc=$?
ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
exit $rc

File Metadata

Mime Type
text/x-shellscript
Expires
Sun, Jul 20, 9:02 PM (20 h, 37 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
2017329
Default Alt Text
awsvip (5 KB)

Event Timeline