diff options
Diffstat (limited to 'heartbeat/nagios')
| -rwxr-xr-x | heartbeat/nagios | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/heartbeat/nagios b/heartbeat/nagios new file mode 100755 index 0000000..a45d5b8 --- /dev/null +++ b/heartbeat/nagios @@ -0,0 +1,246 @@ +#!/bin/sh +# +# License: GNU General Public License (GPL) +# (c) 2015 T.J. Yang, O. Albrigtsen +# and Linux-HA contributors +# +# ----------------------------------------------------------------------------- +# O C F R E S O U R C E S C R I P T S P E C I F I C A T I O N +# ----------------------------------------------------------------------------- +# +# NAME +# nagios : OCF resource agent script for Nagios Server +# + +# Initialization: +: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat} +. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs + +# Defaults +OCF_RESKEY_user_default="nagios" +OCF_RESKEY_group_default="nagios" +OCF_RESKEY_binary_default="/usr/sbin/nagios" +OCF_RESKEY_config_default="/etc/nagios/nagios.cfg" +OCF_RESKEY_log_default="/var/log/nagios/nagios.log" +OCF_RESKEY_retention_default="/var/log/nagios/retention.dat" +OCF_RESKEY_command_default="/var/log/nagios/rw/nagios.cmd" +OCF_RESKEY_pid_default="/var/run/nagios.pid" + +: ${OCF_RESKEY_user=${OCF_RESKEY_user_default}} +: ${OCF_RESKEY_group=${OCF_RESKEY_group_default}} +: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}} +: ${OCF_RESKEY_config=${OCF_RESKEY_config_default}} +: ${OCF_RESKEY_log=${OCF_RESKEY_log_default}} +: ${OCF_RESKEY_retention=${OCF_RESKEY_retention_default}} +: ${OCF_RESKEY_command=${OCF_RESKEY_command_default}} +: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}} + + +nagios_usage() { + cat <<END + usage: $0 (start|stop|validate-all|meta-data|help|usage|monitor) + $0 manages a Nagios instance as an OCF HA resource. + The 'start' operation starts the instance. + The 'stop' operation stops the instance. + The 'status' operation reports whether the instance is running + The 'monitor' operation reports whether the instance seems to be working + The 'validate-all' operation reports whether the parameters are valid +END +} + +nagios_meta_data() { + cat <<END +<?xml version="1.0"?> +<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd"> +<resource-agent name="nagios" version="0.75"> +<version>1.0</version> + +<longdesc lang="en">OCF Resource script for Nagios 3.x or 4.x. It manages a Nagios instance as a HA resource.</longdesc> +<shortdesc lang="en">Nagios resource agent</shortdesc> + +<parameters> + +<parameter name="user"> + <longdesc lang="en">User running Nagios daemon (for file permissions)</longdesc> + <shortdesc lang="en">Nagios user</shortdesc> + <content type="string" default="${OCF_RESKEY_user_default}" /> +</parameter> + +<parameter name="group"> + <longdesc lang="en">Group running Nagios daemon (for file permissions)</longdesc> + <shortdesc lang="en">Nagios group</shortdesc> + <content type="string" default="${OCF_RESKEY_group_default}" /> +</parameter> + +<parameter name="binary"> + <longdesc lang="en">Location of the Nagios binary</longdesc> + <shortdesc lang="en">Nagios binary</shortdesc> + <content type="string" default="${OCF_RESKEY_binary_default}" /> +</parameter> + +<parameter name="config"> + <longdesc lang="en">Configuration file</longdesc> + <shortdesc lang="en">Nagios config</shortdesc> + <content type="string" default="${OCF_RESKEY_config_default}" /> +</parameter> + +<parameter name="log"> + <longdesc lang="en">Location of the Nagios log</longdesc> + <shortdesc lang="en">Nagios log</shortdesc> + <content type="string" default="${OCF_RESKEY_log_default}" /> +</parameter> + +<parameter name="retention"> + <longdesc lang="en">Location of the Nagios retention file</longdesc> + <shortdesc lang="en">Nagios retention file</shortdesc> + <content type="string" default="${OCF_RESKEY_retention_default}" /> +</parameter> + +<parameter name="command"> + <longdesc lang="en">Location of the Nagios external command file</longdesc> + <shortdesc lang="en">Nagios command file</shortdesc> + <content type="string" default="${OCF_RESKEY_command_default}" /> +</parameter> + +<parameter name="pid"> + <longdesc lang="en">Location of the Nagios pid/lock</longdesc> + <shortdesc lang="en">Nagios pid file</shortdesc> + <content type="string" default="${OCF_RESKEY_pid_default}" /> +</parameter> + +</parameters> + +<actions> +<action name="start" timeout="20s" /> +<action name="stop" timeout="20s" /> +<action name="status" timeout="20s" /> +<action name="monitor" depth="0" timeout="20s" interval="10s" start-delay="10s" /> +<action name="validate-all" timeout="20s" /> +<action name="meta-data" timeout="20s" /> +</actions> +</resource-agent> +END +} + + +nagios_start() { + nagios_validate_all + rc=$? + if [ $rc -ne 0 ]; then + return $rc + fi + + # if resource is already running,no need to continue code after this. + if nagios_monitor; then + ocf_log info "Nagios is already running" + return $OCF_SUCCESS + fi + + # Remove ${OCF_RESKEY_pid} if it exists + rm -f "${OCF_RESKEY_pid}" + + ocf_run -q touch ${OCF_RESKEY_log} ${OCF_RESKEY_retention} ${OCF_RESKEY_pid} + chown ${OCF_RESKEY_user}:${OCF_RESKEY_group} ${OCF_RESKEY_log} ${OCF_RESKEY_retention} ${OCF_RESKEY_pid} + rm -f "${OCF_RESKEY_command}" + + [ -x /sbin/restorecon ] && /sbin/restorecon ${OCF_RESKEY_pid} + ocf_run -q ${OCF_RESKEY_binary} -d ${OCF_RESKEY_config} + + while ! nagios_monitor; do + sleep 1 + done + + if [ $? -eq 0 ]; then + ocf_log info "Nagios started" + return ${OCF_SUCCESS} + fi + + return $OCF_SUCCESS +} + +nagios_stop() { + nagios_monitor + if [ $? -ne $OCF_SUCCESS ]; then + # Currently not running. Nothing to do. + ocf_log info "Resource is already stopped" + rm -f ${OCF_RESKEY_pid} + + return $OCF_SUCCESS + fi + + kill `cat ${OCF_RESKEY_pid}` + + # Wait for process to stop + while nagios_monitor; do + sleep 1 + done + + return $OCF_SUCCESS +} + +nagios_monitor(){ + ocf_pidfile_status ${OCF_RESKEY_pid} > /dev/null 2>&1 + case "$?" in + 0) + rc=$OCF_SUCCESS + ;; + 1|2) + rc=$OCF_NOT_RUNNING + ;; + *) + rc=$OCF_ERR_GENERIC + ;; + esac + return $rc +} + +nagios_validate_all(){ + check_binary "${OCF_RESKEY_binary}" + + if [ ! -f "${OCF_RESKEY_config}" ]; then + ocf_exit_reason "Configuration file ${OCF_RESKEY_config} not found" + return ${OCF_ERR_INSTALLED} + fi + + ${OCF_RESKEY_binary} -v ${OCF_RESKEY_config} >/dev/null 2>&1 + if [ $? -ne 0 ]; then + ocf_exit_reason "Configuration check failed" + return ${OCF_ERR_INSTALLED} + fi +} + + +# **************************** MAIN SCRIPT ************************************ + +# Make sure meta-data and usage always succeed +case $__OCF_ACTION in +meta-data) nagios_meta_data + exit $OCF_SUCCESS + ;; +usage|help) nagios_usage + exit $OCF_SUCCESS + ;; +esac + +# This OCF agent script need to be run as root user. +if ! ocf_is_root; then + echo "$0 agent script need to be run as root user." + ocf_log debug "$0 agent script need to be run as root user." + exit $OCF_ERR_GENERIC +fi + +# Translate each action into the appropriate function call +case $__OCF_ACTION in +start) nagios_start;; +stop) nagios_stop;; +status|monitor) nagios_monitor;; +validate-all) nagios_validate_all;; +*) nagios_usage + exit $OCF_ERR_UNIMPLEMENTED + ;; +esac +rc=$? + +exit $rc + +# End of this script |