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#!/bin/sh
#
#
# sharedrsc OCF RA. Just keep some resource while running and
# release when stopped. The resource is a directory on a
# shared filesystem or on a filesystem which is remotely
# accessible over ssh. Used for booth testing, i.e. to make
# sure that no two sites keep the same ticket.
#
# Copyright (c) 2004 SUSE LINUX AG, Lars Marowsky-Br馥
# All Rights Reserved.
# Copyright (c) 2015 SUSE Microfocus, Dejan Muhamedagic
# 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 to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
# shellcheck source=/usr/lib/ocf/lib/heartbeat/ocf-shellfuncs
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
#######################################################################
sharedrsc_meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="sharedrsc" version="1.0">
<version>1.0</version>
<longdesc lang="en">
This is sharedrsc Resource Agent.
It just keeps some resource while running and
releases it when stopped. The resource is a directory on a
shared filesystem or on a filesystem which is remotely
accessible over ssh. Used for booth testing, i.e. to make
sure that no two sites keep the same ticket.
</longdesc>
<shortdesc lang="en">shared resource (booth testing)</shortdesc>
<parameters>
<parameter name="dir" unique="1" required="1">
<longdesc lang="en">
Location of the shared directory. If it's of the form "[user@]host:path"
then it is assumed that the directory is to be accessed over ssh
on that host. Otherwise, it must be a directory on a shared
filesystem (such as nfs or ocfs2).
</longdesc>
<shortdesc lang="en">shared directory location</shortdesc>
<content type="string" default="" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="20" />
<action name="stop" timeout="20" />
<action name="monitor" timeout="20" interval="10" depth="0" />
<action name="reload" timeout="20" />
<action name="migrate_to" timeout="20" />
<action name="migrate_from" timeout="20" />
<action name="meta-data" timeout="5" />
<action name="validate-all" timeout="20" />
</actions>
</resource-agent>
END
}
#######################################################################
sharedrsc_usage() {
cat <<END
usage: $0 {start|stop|monitor|migrate_to|migrate_from|validate-all|meta-data}
Expects to have a fully populated OCF RA-compliant environment set.
END
}
runcmd() {
local func=$1
local dir=$2
$func $dir |
if [ -n "$SSH_HOST" ]; then
ssh -T -o Batchmode=yes $SSH_HOST
else
/bin/sh
fi
}
getowner() {
echo "test -d $1 && cat $1/owner"
}
testcmd() {
echo "test -d $1 && test \"\`cat $1/owner\`\" = `uname -n`"
}
makecmd() {
echo "mkdir $1 && echo `uname -n` > $1/owner"
}
removecmd() {
echo "test -d $1 && test \"\`cat $1/owner\`\" = `uname -n` && rm $1/owner && rmdir $1"
}
testdir() {
runcmd testcmd $1
}
makedir() {
runcmd makecmd $1
}
removedir() {
runcmd removecmd $1
}
sharedrsc_monitor() {
if testdir $DIR; then
return $OCF_SUCCESS
else
return $OCF_NOT_RUNNING
fi
}
sharedrsc_start() {
if sharedrsc_monitor; then
return $OCF_SUCCESS
fi
makedir $DIR &&
return $OCF_SUCCESS
local owner
if ! owner=`runcmd getowner $DIR`; then
owner="... nobody, it's only half-claimed"
fi
# shellcheck disable=SC2154
# (OCF_RESKEY_dir: injected by CRM)
ocf_log err "eek, $OCF_RESKEY_dir already owned by $owner"
return $OCF_ERR_GENERIC
}
sharedrsc_stop() {
sharedrsc_monitor
if [ $? -eq $OCF_NOT_RUNNING ]; then
return $OCF_SUCCESS
fi
removedir $DIR
}
sharedrsc_getconfig() {
local colon_pos
colon_pos=`expr index "$OCF_RESKEY_dir" ":"`
if [ $colon_pos -gt 0 ]; then
SSH_HOST=`echo $OCF_RESKEY_dir | cut -d: -f 1`
DIR=`echo $OCF_RESKEY_dir | cut -d: -f 2`
else
SSH_HOST=
DIR=$OCF_RESKEY_dir
fi
}
sharedrsc_validate_all() {
if [ `expr index $DIR /` -ne 1 ]; then
ocf_log err "dir must be an absolute path"
return $OCF_ERR_INSTALLED
fi
return $OCF_SUCCESS
}
# shellcheck disable=SC2034
# (OCF_REQUIRED_PARAMS consumed by ocf_rarun)
OCF_REQUIRED_PARAMS="dir"
ocf_rarun $*
#
# vim:tabstop=4:shiftwidth=4:textwidth=0:wrapmargin=0

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