345 lines
10 KiB
Bash
Executable File
345 lines
10 KiB
Bash
Executable File
#!/bin/bash
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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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# 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_log_file
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# OCF_RESKEY_pid
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# OCF_RESKEY_user
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# OCF_RESKEY_watchdog_file
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# OCF_RESKEY_watchdog_timeout
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#######################################################################
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# Initialization:
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: "${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}"
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. "${OCF_FUNCTIONS_DIR}/ocf-shellfuncs"
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#######################################################################
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# Fill in some defaults if no values are specified
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SERVICE_NAME="LMA collector"
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OCF_RESKEY_binary_default="/usr/bin/hekad"
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OCF_RESKEY_config_default="/etc/lma_collector"
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OCF_RESKEY_log_file_default="/var/log/lma_collector.log"
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OCF_RESKEY_pid_default="${HA_RSCTMP}/${__SCRIPT_NAME}/${__SCRIPT_NAME}.pid"
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OCF_RESKEY_user_default="root"
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OCF_RESKEY_watchdog_file_default=
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OCF_RESKEY_watchdog_timeout_default=20
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: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}}
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: ${OCF_RESKEY_config=${OCF_RESKEY_config_default}}
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: ${OCF_RESKEY_log_file=${OCF_RESKEY_log_file_default}}
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: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}}
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: ${OCF_RESKEY_user=${OCF_RESKEY_user_default}}
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: ${OCF_RESKEY_watchdog_file=${OCF_RESKEY_watchdog_file_default}}
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: ${OCF_RESKEY_watchdog_timeout=${OCF_RESKEY_watchdog_timeout_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 ${SERVICE_NAME} is running
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UEND
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}
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meta_data() {
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cat <<END
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<?xml version="1.0"?>
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<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
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<resource-agent name="heat-engine">
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<version>1.0</version>
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<longdesc lang="en">
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Manages the LMA collector daemon as a Pacemaker Resource.
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</longdesc>
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<shortdesc lang="en">Manages LMA collector</shortdesc>
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<parameters>
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<parameter name="binary" unique="0" required="0">
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<longdesc lang="en">
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Path of the LMA collector binary file that will be run.
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</longdesc>
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<shortdesc lang="en">LMA collector binary file</shortdesc>
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<content type="string" default="${OCF_RESKEY_binary_default}" />
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</parameter>
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<parameter name="config" unique="0" required="0">
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<longdesc lang="en">
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Path to the LMA collector configuration file or directory
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</longdesc>
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<shortdesc lang="en">LMA collector configuration</shortdesc>
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<content type="string" default="${OCF_RESKEY_config_default}" />
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</parameter>
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<parameter name="log_file" unique="0" required="0">
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<longdesc lang="en">
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Path to the LMA collector log file
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</longdesc>
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<shortdesc lang="en">LMA collector log file</shortdesc>
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<content type="string" default="${OCF_RESKEY_log_file_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 the LMA collector service
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</longdesc>
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<shortdesc lang="en">LMA collector pid file</shortdesc>
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<content type="string" default="${OCF_RESKEY_pid_default}" />
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</parameter>
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<parameter name="user" unique="0" required="0">
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<longdesc lang="en">
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User running the LMA collector process
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</longdesc>
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<shortdesc lang="en">LMA collector user</shortdesc>
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<content type="string" default="${OCF_RESKEY_user_default}" />
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</parameter>
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<parameter name="watchdog_file" unique="0" required="0">
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<longdesc lang="en">
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The file to monitor that the process is up and running
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</longdesc>
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<shortdesc lang="en">LMA collector watchdog file</shortdesc>
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<content type="string" default="${OCF_RESKEY_watchdog_file_default}" />
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</parameter>
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<parameter name="watchdog_timeout" unique="0" required="0">
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<longdesc lang="en">
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How much time the watchdog file can be left unmodified before claiming that
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the process is unresponsive.
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</longdesc>
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<shortdesc lang="en">LMA collector watchdog timeout</shortdesc>
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<content type="string" default="${OCF_RESKEY_watchdog_timeout_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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if [[ ! -f $OCF_RESKEY_config && ! -d $OCF_RESKEY_config ]]; 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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getent passwd "$OCF_RESKEY_user" >/dev/null 2>&1
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rc=$?
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if [ $rc -ne 0 ]; then
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ocf_log err "User $OCF_RESKEY_user doesn't exist"
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return "$OCF_ERR_INSTALLED"
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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 rc
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local pid
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# check and make PID file dir
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local PID_DIR
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PID_DIR=$( dirname "${OCF_RESKEY_pid}" )
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if [ ! -d "${PID_DIR}" ] ; then
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ocf_log debug "Create pid file dir: ${PID_DIR} and chown to ${OCF_RESKEY_user}"
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mkdir -p "${PID_DIR}"
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chown -R "${OCF_RESKEY_user}" "${PID_DIR}"
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chmod 755 "${PID_DIR}"
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fi
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if [ ! -f "$OCF_RESKEY_pid" ]; then
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ocf_log info "LMA collector is not running"
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return "$OCF_NOT_RUNNING"
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else
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pid=$(cat "$OCF_RESKEY_pid")
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fi
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if [ -n "${pid}" ]; then
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ocf_run -warn kill -s 0 "$pid"
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rc=$?
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if [ $rc -ne 0 ]; then
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ocf_log info "Old PID file found, but LMA collector process isn't running"
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return "$OCF_NOT_RUNNING"
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fi
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else
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ocf_log err "PID file ${OCF_RESKEY_pid} is empty!"
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return "$OCF_ERR_GENERIC"
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fi
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if [ ! -z "$OCF_RESKEY_watchdog_file" ]; then
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if [ ! -f "$OCF_RESKEY_watchdog_file" ]; then
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ocf_log info "${OCF_RESKEY_watchdog_file} is missing"
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return "$OCF_NOT_RUNNING"
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else
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now=$(date '+%s')
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last_access=$(stat -c %Y "${OCF_RESKEY_watchdog_file}")
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if [ $(( now - last_access )) -gt "${OCF_RESKEY_watchdog_timeout}" ]; then
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ocf_log err "File ${OCF_RESKEY_watchdog_file} not modified since ${OCF_RESKEY_watchdog_timeout} seconds"
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return "$OCF_NOT_RUNNING"
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fi
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fi
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else
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ocf_log debug "Skip watchdog check since watchdog_file parameter is not set"
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fi
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return "$OCF_SUCCESS"
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}
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service_monitor() {
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local rc
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service_status
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rc=$?
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return $rc
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}
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service_start() {
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local rc
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service_monitor
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rc=$?
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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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# See https://bugs.launchpad.net/lma-toolchain/+bug/1543289
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ulimit -n 102400
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su "${OCF_RESKEY_user}" -s /bin/sh -c "${OCF_RESKEY_binary} \
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-config=${OCF_RESKEY_config} >> $OCF_RESKEY_log_file 2>&1"' & echo $!' > "$OCF_RESKEY_pid"
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# Spin waiting for the server to come up
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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 3
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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_monitor
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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 $shutdown_timeout ]; do
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service_monitor
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rc=$?
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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=$(( count + 1))
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sleep 1
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ocf_log debug "${SERVICE_NAME} still hasn't stopped yet. Waiting ..."
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done
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service_monitor
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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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ocf_log debug "Delete pid file: ${OCF_RESKEY_pid} with content $(cat "${OCF_RESKEY_pid}")"
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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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