diff options
Diffstat (limited to 'heartbeat/Dummy')
| -rwxr-xr-x | heartbeat/Dummy | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/heartbeat/Dummy b/heartbeat/Dummy new file mode 100755 index 0000000..81a675d --- /dev/null +++ b/heartbeat/Dummy @@ -0,0 +1,186 @@ +#!/bin/sh +# +# +# Dummy OCF RA. Does nothing except track its own state. +# Use it only as a testing tool or example for how to write +# a resource agent. +# +# Copyright (c) 2004 SUSE LINUX AG, Lars Marowsky-Bree +# All Rights Reserved. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of version 2 of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# +# Further, this software is distributed without any warranty that it is +# free of the rightful claim of any third person regarding infringement +# or the like. Any license provided herein, whether implied or +# otherwise, applies only to this software file. Patent licenses, if +# any, provided herein do not apply to combinations of this program with +# other software, or any other product whatsoever. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. +# + +####################################################################### +# Initialization: + +: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat} +. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs + +# Parameter defaults + +OCF_RESKEY_state_default="${HA_RSCTMP}/Dummy-${OCF_RESOURCE_INSTANCE}.state" +OCF_RESKEY_fake_default="dummy" + +: ${OCF_RESKEY_state=${OCF_RESKEY_state_default}} +: ${OCF_RESKEY_fake=${OCF_RESKEY_fake_default}} + +####################################################################### + +meta_data() { + cat <<END +<?xml version="1.0"?> +<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd"> +<resource-agent name="Dummy" version="1.0"> +<version>1.0</version> + +<longdesc lang="en"> +This is a Dummy Resource Agent. It does absolutely nothing except +keep track of whether its running or not. +Its purpose in life is for testing and to serve as a template for RA writers. + +NB: Please pay attention to the timeouts specified in the actions +section below. They should be meaningful for the kind of resource +the agent manages. They should be the minimum advised timeouts, +but they shouldn't/cannot cover _all_ possible resource +instances. So, try to be neither overly generous nor too stingy, +but moderate. The minimum timeouts should never be below 10 seconds. +</longdesc> +<shortdesc lang="en">Example stateless resource agent</shortdesc> + +<parameters> +<parameter name="state" unique="1"> +<longdesc lang="en"> +Location to store the resource state in. +</longdesc> +<shortdesc lang="en">State file</shortdesc> +<content type="string" default="${OCF_RESKEY_state_default}" /> +</parameter> + +<parameter name="fake" unique="0"> +<longdesc lang="en"> +Fake attribute that can be changed to cause a reload +</longdesc> +<shortdesc lang="en">Fake attribute that can be changed to cause a reload</shortdesc> +<content type="string" default="${OCF_RESKEY_fake_default}" /> +</parameter> + +</parameters> + +<actions> +<action name="start" timeout="20s" /> +<action name="stop" timeout="20s" /> +<action name="monitor" timeout="20s" interval="10s" depth="0" /> +<action name="reload" timeout="20s" /> +<action name="migrate_to" timeout="20s" /> +<action name="migrate_from" timeout="20s" /> +<action name="meta-data" timeout="5s" /> +<action name="validate-all" timeout="20s" /> +</actions> +</resource-agent> +END +} + +####################################################################### + +dummy_usage() { + cat <<END +usage: $0 {start|stop|monitor|reload|migrate_to|migrate_from|validate-all|meta-data} + +Expects to have a fully populated OCF RA-compliant environment set. +END +} + +dummy_start() { + dummy_monitor + if [ $? = $OCF_SUCCESS ]; then + return $OCF_SUCCESS + fi + touch ${OCF_RESKEY_state} +} + +dummy_stop() { + dummy_monitor + if [ $? = $OCF_SUCCESS ]; then + rm ${OCF_RESKEY_state} + fi + return $OCF_SUCCESS +} + +dummy_monitor() { + # Monitor _MUST!_ differentiate correctly between running + # (SUCCESS), failed (ERROR) or _cleanly_ stopped (NOT RUNNING). + # That is THREE states, not just yes/no. + + if [ -f ${OCF_RESKEY_state} ]; then + return $OCF_SUCCESS + fi + if false ; then + return $OCF_ERR_GENERIC + fi + + if ! ocf_is_probe && [ "$__OCF_ACTION" = "monitor" ]; then + # set exit string only when NOT_RUNNING occurs during an actual monitor operation. + ocf_exit_reason "No process state file found" + fi + return $OCF_NOT_RUNNING +} + +dummy_validate() { + + # Is the state directory writable? + state_dir=`dirname "$OCF_RESKEY_state"` + touch "$state_dir/$$" + if [ $? != 0 ]; then + ocf_exit_reason "State file \"$OCF_RESKEY_state\" is not writable" + return $OCF_ERR_ARGS + fi + rm "$state_dir/$$" + + return $OCF_SUCCESS +} + +case $__OCF_ACTION in +meta-data) meta_data + exit $OCF_SUCCESS + ;; +start) dummy_start;; +stop) dummy_stop;; +monitor) dummy_monitor;; +migrate_to) ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} to ${OCF_RESKEY_CRM_meta_migrate_target}." + dummy_stop + ;; +migrate_from) ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} from ${OCF_RESKEY_CRM_meta_migrate_source}." + dummy_start + ;; +reload) ocf_log info "Reloading ${OCF_RESOURCE_INSTANCE} ..." + ;; +validate-all) dummy_validate;; +usage|help) dummy_usage + exit $OCF_SUCCESS + ;; +*) dummy_usage + exit $OCF_ERR_UNIMPLEMENTED + ;; +esac +rc=$? +ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc" +exit $rc + |