274 lines
7.1 KiB
Bash
274 lines
7.1 KiB
Bash
#!/bin/sh
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#
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# Copyright 2015 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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# Zabbix server OCF script
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#
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# Description: Manages Zabbix server process as a HA resource
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#
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# Authors: Mirantis inc.
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#
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# Support: openstack@lists.launchpad.net
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#
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# See usage() function below for more details ...
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#
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# OCF instance parameters:
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# OCF_RESKEY_binary
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# OCF_RESKEY_config
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# OCF_RESKEY_user
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# OCF_RESKEY_pid
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# OCF_RESKEY_additional_parameters
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# OCF_RESKEY_namespace
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#######################################################################
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# Initialization:
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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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# Fill in some defaults if no values are specified
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SERVICE_NAME="Zabbix-server"
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OCF_RESKEY_binary_default="/usr/sbin/zabbix_server"
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OCF_RESKEY_pid_default="/var/run/zabbix/zabbix_server.pid"
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OCF_RESKEY_namespace_default="zabbix"
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: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}}
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: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}}
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: ${OCF_RESKEY_namespace=${OCF_RESKEY_namespace_default}}
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#######################################################################
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usage() {
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cat <<UEND
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usage: $0 (start|stop|validate-all|meta-data|status|monitor)
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$0 manages the ${SERVICE_NAME} process as an HA resource
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The 'start' operation starts the ${SERVICE_NAME}
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The 'stop' operation stops the ${SERVICE_NAME}
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The 'validate-all' operation reports whether the parameters are valid
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The 'meta-data' operation reports this RA's meta-data information
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The 'status' operation reports whether the ${SERVICE_NAME} is running
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The 'monitor' operation reports whether the ${SERVICE_NAME} is running
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UEND
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}
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meta_data() {
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cat <<END
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<?xml version="1.0"?>
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<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
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<resource-agent name="zabbix-server">
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<version>1.0</version>
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<longdesc lang="en">
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Manages Zabbix server daemon as a Pacemaker Resource.
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</longdesc>
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<shortdesc lang="en">Manages Zabbix server</shortdesc>
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<parameters>
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<parameter name="binary" unique="0" required="0">
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<longdesc lang="en">
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Name of zabbix-server file that will be run.
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</longdesc>
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<shortdesc lang="en">zabbix-server binary file</shortdesc>
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<content type="string" default="${OCF_RESKEY_binary_default}" />
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</parameter>
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<parameter name="pid" unique="0" required="0">
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<longdesc lang="en">
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The pid file to use for this process
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</longdesc>
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<shortdesc lang="en">zabbix-server pid file</shortdesc>
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<content type="string" default="${OCF_RESKEY_pid_default}" />
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</parameter>
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<parameter name="namespace" unique="0" required="0">
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<longdesc lang="en">
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The namespace in which this process should be run
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</longdesc>
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<shortdesc lang="en">zabbix-server namespace</shortdesc>
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<content type="string" default="${OCF_RESKEY_namespace_default}" />
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</parameter>
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</parameters>
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<actions>
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<action name="start" timeout="20" />
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<action name="stop" timeout="20" />
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<action name="status" timeout="20" />
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<action name="monitor" timeout="30" interval="20" />
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<action name="validate-all" timeout="5" />
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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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# Functions invoked by resource manager actions
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service_validate() {
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local rc
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check_binary $OCF_RESKEY_binary
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# A config file on shared storage that is not available
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# during probes is OK.
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#if [ ! -f $OCF_RESKEY_config ]; then
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# if ! ocf_is_probe; then
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# ocf_log err "Config $OCF_RESKEY_config doesn't exist"
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# return $OCF_ERR_INSTALLED
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# fi
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# ocf_log_warn "Config $OCF_RESKEY_config not available during a probe"
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#fi
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true
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}
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service_status() {
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local pid
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local rc
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if [ ! -f $OCF_RESKEY_pid ]; then
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ocf_log info "${SERVICE_NAME} is not running"
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return $OCF_NOT_RUNNING
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else
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pid=`cat $OCF_RESKEY_pid`
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fi
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ocf_run -warn kill -s 0 $pid
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rc=$?
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if [ $rc -eq 0 ]; then
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return $OCF_SUCCESS
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else
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ocf_log info "Old PID file found, but ${SERVICE_NAME} is not running"
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return $OCF_NOT_RUNNING
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fi
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}
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service_monitor() {
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service_status
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}
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service_start() {
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local rc
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service_status
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rc=$?
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if [ $rc -eq $OCF_SUCCESS ]; then
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ocf_log info "${SERVICE_NAME} is already running"
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return $OCF_SUCCESS
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fi
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ip netns exec ${OCF_RESKEY_namespace} ${OCF_RESKEY_binary}
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# Spin waiting for the server to come up.
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# Let the CRM/LRM time us out if required
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while true; do
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service_monitor
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rc=$?
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[ $rc -eq $OCF_SUCCESS ] && break
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if [ $rc -ne $OCF_NOT_RUNNING ]; then
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ocf_log err "${SERVICE_NAME} start failed"
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exit $OCF_ERR_GENERIC
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fi
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sleep 1
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done
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ocf_log info "${SERVICE_NAME} started"
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return $OCF_SUCCESS
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}
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service_stop() {
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local rc
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local pid
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service_status
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rc=$?
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if [ $rc -eq $OCF_NOT_RUNNING ]; then
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ocf_log info "${SERVICE_NAME} is already stopped"
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return $OCF_SUCCESS
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fi
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# Try SIGTERM
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pid=`cat $OCF_RESKEY_pid`
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ocf_run kill -s TERM $pid
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rc=$?
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if [ $rc -ne 0 ]; then
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ocf_log err "${SERVICE_NAME} couldn't be stopped"
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exit $OCF_ERR_GENERIC
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fi
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# stop waiting
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shutdown_timeout=15
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if [ -n "$OCF_RESKEY_CRM_meta_timeout" ]; then
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shutdown_timeout=$((($OCF_RESKEY_CRM_meta_timeout/1000)-5))
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fi
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count=0
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while [ $count -lt $shutdown_timeout ]; do
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service_status
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rc=$?
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if [ $rc -eq $OCF_NOT_RUNNING ]; then
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break
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fi
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count=`expr $count + 1`
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sleep 1
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ocf_log debug "${SERVICE_NAME} still hasn't stopped yet. Waiting ..."
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done
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service_status
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rc=$?
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if [ "${rc}" -ne "${OCF_NOT_RUNNING}" ]; then
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# SIGTERM didn't help either, try SIGKILL
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ocf_log info "${SERVICE_NAME} failed to stop after ${shutdown_timeout}s using SIGTERM. Trying SIGKILL ..."
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ocf_run kill -s KILL "${pid}"
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fi
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ocf_log info "${SERVICE_NAME} stopped"
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rm -f "${OCF_RESKEY_pid}"
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return "${OCF_SUCCESS}"
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}
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#######################################################################
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case "$1" in
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meta-data) meta_data
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exit $OCF_SUCCESS;;
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usage|help) usage
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exit $OCF_SUCCESS;;
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esac
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# Anything except meta-data and help must pass validation
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service_validate || exit $?
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# What kind of method was invoked?
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case "$1" in
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start) service_start;;
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stop) service_stop;;
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status) service_status;;
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monitor) service_monitor;;
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validate-all) ;;
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*) usage
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exit $OCF_ERR_UNIMPLEMENTED;;
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esac
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