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|
#!/bin/sh
#
# High-Availability pgagent OCF resource agent
#
# Description: Starts/stops pgagent
# Author: Oleg Selin
# License: GNU General Public License (GPL)
#
# OCF parameters:
# OCF_RESKEY_connection_string
# OCF_RESKEY_user
# OCF_RESKEY_options
#
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
OCF_RESKEY_executable_default="`which pgagent`"
OCF_RESKEY_connection_string_default="user=postgres host=/var/run/postgresql"
OCF_RESKEY_user_default="postgres"
OCF_RESKEY_options_default="-r 1 -t 1"
: ${OCF_RESKEY_executable="${OCF_RESKEY_executable_default}"}
: ${OCF_RESKEY_connection_string="${OCF_RESKEY_connection_string_default}"}
: ${OCF_RESKEY_user="${OCF_RESKEY_user_default}"}
: ${OCF_RESKEY_options="${OCF_RESKEY_options_default}"}
pgagent_validate_all() {
check_binary pgagent
ocf_log debug "executable: '$OCF_RESKEY_executable'"
ocf_log debug "connection string: '$OCF_RESKEY_connection_string'"
ocf_log debug "user: '$OCF_RESKEY_user'"
ocf_log debug "options: '$OCF_RESKEY_options'"
if [ -z "$OCF_RESKEY_connection_string" ]; then
ocf_log err "Connection string is not configured!"
exit $OCF_ERR_CONFIGURED
fi
if [ -z "$OCF_RESKEY_user" ]; then
ocf_log err "User is not configured!"
exit $OCF_ERR_CONFIGURED
fi
getent passwd $OCF_RESKEY_user >/dev/null 2>&1
if [ ! $? -eq 0 ]; then
ocf_log err "User $OCF_RESKEY_user doesn't exist";
return $OCF_ERR_CONFIGURED;
fi
return $OCF_SUCCESS
}
pgagent_start() {
pgagent_validate_all
nohup su - $OCF_RESKEY_user -c "'$OCF_RESKEY_executable' $OCF_RESKEY_options '$OCF_RESKEY_connection_string'" > /dev/null 2>&1 &
sleep 1
if pgagent_monitor; then
return $OCF_SUCCESS
fi
return $OCF_ERR_GENERIC
}
pgagent_stop() {
pgagent_validate_all
pid=`pgrep -f -x -U $OCF_RESKEY_user "$OCF_RESKEY_executable $OCF_RESKEY_options $OCF_RESKEY_connection_string"`
if [ -n "$pid" ]; then
ocf_run kill $pid || return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
pgagent_monitor() {
if [ -z "$OCF_RESKEY_executable" ]; then
return $OCF_ERR_INSTALLED
fi
ocf_run pgrep -f -x -U "$OCF_RESKEY_user" "$OCF_RESKEY_executable $OCF_RESKEY_options $OCF_RESKEY_connection_string" || return $OCF_NOT_RUNNING
return $OCF_SUCCESS
}
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="pgagent" version="1.0">
<version>1.0</version>
<longdesc lang="en">This is a pgagent Resource Agent.</longdesc>
<shortdesc lang="en">Controls pgagent</shortdesc>
<parameters>
<parameter name="connection_string">
<longdesc lang="en">Connection string for pgagent.</longdesc>
<shortdesc lang="en">pgagent connection string</shortdesc>
<content type="string" default="$OCF_RESKEY_connection_string_default" />
</parameter>
<parameter name="user">
<longdesc lang="en">User to run pgagent as.</longdesc>
<shortdesc lang="en">User to run pgagent</shortdesc>
<content type="string" default="$OCF_RESKEY_user_default" />
</parameter>
<parameter name="options">
<longdesc lang="en">Options for pgagent.</longdesc>
<shortdesc lang="en">pgagent run options, see pgagent --help for details</shortdesc>
<content type="string" default="$OCF_RESKEY_options_default" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="5s" />
<action name="stop" timeout="5s" />
<action name="monitor" timeout="20s" interval="10s" depth="0" />
<action name="meta-data" timeout="5s" />
<action name="validate-all" timeout="5s" />
</actions>
</resource-agent>
END
}
pgagent_usage() {
cat <<END
usage: $0 {start|stop|monitor|meta-data|validate-all}
Expects to have a fully populated OCF RA-compliant environment set.
END
}
case $__OCF_ACTION in
start) pgagent_start;;
stop) pgagent_stop;;
monitor) pgagent_monitor;;
validate-all) pgagent_validate_all;;
usage|help) pgagent_usage
exit $OCF_SUCCESS
;;
meta-data) meta_data
exit $OCF_SUCCESS
;;
*) pgagent_usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
rc=$?
ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
exit $rc
|
