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Diffstat (limited to 'extras/ocf/glusterd.in')
| -rwxr-xr-x | extras/ocf/glusterd.in | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/extras/ocf/glusterd.in b/extras/ocf/glusterd.in new file mode 100755 index 00000000000..c119a285d32 --- /dev/null +++ b/extras/ocf/glusterd.in @@ -0,0 +1,212 @@ +#!/bin/sh +# +# glusterd +# +# Description: Manages a glusterd server as a (typically cloned) +# HA resource +# +# Authors: Florian Haas (hastexo Professional Services GmbH) +# +# License: GNU General Public License (GPL) + +####################################################################### +# Initialization: + +: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat} +. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs + +# Convenience variables +# When sysconfdir and localstatedir aren't passed in as +# configure flags, they're defined in terms of prefix +prefix=@prefix@ +####################################################################### + + +OCF_RESKEY_binary_default="glusterd" +OCF_RESKEY_pid_default="@localstatedir@/run/glusterd.pid" +OCF_RESKEY_socket_default="" +OCF_RESKEY_additional_parameters_default="" + +: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}} +: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}} + +glusterd_meta_data() { + cat <<EOF +<?xml version="1.0"?> +<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd"> +<resource-agent name="glusterd" version="0.1"> + <version>0.1</version> + <longdesc lang="en"> + </longdesc> + <shortdesc lang="en">Manages a Gluster server</shortdesc> + <parameters> + <parameter name="binary"> + <longdesc lang="en"> + Name of the glusterd executable. Specify a full absolute + path if the binary is not in your \$PATH. + </longdesc> + <shortdesc lang="en">glusterd executable</shortdesc> + <content type="string" default="$OCF_RESKEY_binary_default"/> + </parameter> + <parameter name="pid"> + <longdesc lang="en"> + Path to the glusterd PID file. + </longdesc> + <shortdesc lang="en">PID file</shortdesc> + <content type="string" default="$OCF_RESKEY_pid_default"/> + </parameter> + <parameter name="socket"> + <longdesc lang="en"> + Path to the glusterd UNIX socket file. If unspecified, + glusterd will not listen on any socket. + </longdesc> + <shortdesc lang="en">Socket file</shortdesc> + <content type="string"/> + </parameter> + </parameters> + <actions> + <action name="start" timeout="20" /> + <action name="stop" timeout="20" /> + <action name="monitor" timeout="20" interval="10" /> + <action name="reload" timeout="20" /> + <action name="meta-data" timeout="5" /> + <action name="validate-all" timeout="20" /> + </actions> +</resource-agent> +EOF + +} + +glusterd_start() { + local glusterd_options + # exit immediately if configuration is not valid + glusterd_validate_all || exit $? + + # if resource is already running, bail out early + if glusterd_monitor; then + ocf_log info "Resource is already running" + return $OCF_SUCCESS + fi + + # actually start up the resource here (make sure to immediately + # exit with an $OCF_ERR_ error code if anything goes seriously + # wrong) + glusterd_options="-p $OCF_RESKEY_pid" + if [ -n "$OCF_RESKEY_socket" ]; then + glusterd_options="$glusterd_options -S $OCF_RESKEY_socket" + fi + if [ -n "$OCF_RESKEY_additional_parameters" ]; then + glusterd_options="$glusterd_options $OCF_RESKEY_additional_parameters" + fi + + ocf_run $OCF_RESKEY_binary $glusterd_options || exit $OCF_ERR_GENERIC + + # After the resource has been started, check whether it started up + # correctly. If the resource starts asynchronously, the agent may + # spin on the monitor function here -- if the resource does not + # start up within the defined timeout, the cluster manager will + # consider the start action failed + while ! glusterd_monitor; do + ocf_log debug "Resource has not started yet, waiting" + sleep 1 + done + + # only return $OCF_SUCCESS if _everything_ succeeded as expected + return $OCF_SUCCESS +} + +glusterd_stop() { + local rc + local pid + + # exit immediately if configuration is not valid + glusterd_validate_all || exit $? + + glusterd_monitor + rc=$? + case "$rc" in + "$OCF_SUCCESS") + # Currently running. Normal, expected behavior. + ocf_log debug "Resource is currently running" + ;; + "$OCF_NOT_RUNNING") + # Currently not running. Nothing to do. + ocf_log info "Resource is already stopped" + return $OCF_SUCCESS + ;; + esac + + # actually shut down the resource here (make sure to immediately + # exit with an $OCF_ERR_ error code if anything goes seriously + # wrong) + pid=`cat $OCF_RESKEY_pid` + ocf_run kill -s TERM $pid || exit OCF_ERR_GENERIC + + # After the resource has been stopped, check whether it shut down + # correctly. If the resource stops asynchronously, the agent may + # spin on the monitor function here -- if the resource does not + # shut down within the defined timeout, the cluster manager will + # consider the stop action failed + while glusterd_monitor; do + ocf_log debug "Resource has not stopped yet, waiting" + sleep 1 + done + + # only return $OCF_SUCCESS if _everything_ succeeded as expected + return $OCF_SUCCESS + +} + +glusterd_monitor() { + local pid + + [ -e $OCF_RESKEY_pid ] || return $OCF_NOT_RUNNING + + pid=`cat $OCF_RESKEY_pid` + ocf_run kill -s 0 $pid || return $OCF_NOT_RUNNING + + ocf_log debug "$OCF_RESKEY_binary running with PID $pid" + return $OCF_SUCCESS +} + +glusterd_validate_all() { + # Test for required binaries + check_binary $OCF_RESKEY_binary + + return $OCF_SUCCESS +} + + + +# Make sure meta-data and usage always succeed +case $__OCF_ACTION in +meta-data) glusterd_meta_data + exit $OCF_SUCCESS + ;; +usage|help) glusterd_usage + exit $OCF_SUCCESS + ;; +esac + +# Anything other than meta-data and usage must pass validation +glusterd_validate_all || exit $? + +# Translate each action into the appropriate function call +case $__OCF_ACTION in +start) glusterd_start;; +stop) glusterd_stop;; +status|monitor) glusterd_monitor;; +reload) ocf_log info "Reloading..." + glusterd_start + ;; +validate-all) ;; +notify) exit $OCF_SUCCESS;; +*) glusterd_usage + exit $OCF_ERR_UNIMPLEMENTED + ;; +esac +rc=$? + +# The resource agent may optionally log a debug message +ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION returned $rc" +exit $rc |