#!/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 < 0.75 OCF Resource script for Nagios 3.x or 4.x. It manages a Nagios instance as a HA resource. Nagios resource agent User running Nagios daemon (for file permissions) Nagios user Group running Nagios daemon (for file permissions) Nagios group Location of the Nagios binary Nagios binary Configuration file Nagios config Location of the Nagios log Nagios log Location of the Nagios retention file Nagios retention file Location of the Nagios external command file Nagios command file Location of the Nagios pid/lock Nagios pid file 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