From 8b07d095acbbb1069c1fb44142ccfdd0aeed075f Mon Sep 17 00:00:00 2001

From: Oyvind Albrigtsen <oalbrigt@redhat.com>

Date: Wed, 16 May 2018 14:10:49 +0200

Subject: [PATCH] vdo-vol: new resource agent

---

 doc/man/Makefile.am   |   3 +-

 heartbeat/Makefile.am |   1 +

 heartbeat/vdo-vol     | 234 ++++++++++++++++++++++++++++++++++++++++++

 3 files changed, 237 insertions(+), 1 deletion(-)

 create mode 100755 heartbeat/vdo-vol

diff --git a/doc/man/Makefile.am b/doc/man/Makefile.am

index c59126d1..8d94c10c 100644

--- a/doc/man/Makefile.am

+++ b/doc/man/Makefile.am

@@ -158,11 +158,12 @@ man_MANS	       = ocf_heartbeat_AoEtarget.7 \

                           ocf_heartbeat_slapd.7 \

                           ocf_heartbeat_sybaseASE.7 \

                           ocf_heartbeat_sg_persist.7 \

-			  ocf_heartbeat_mpathpersist.7 \

+                          ocf_heartbeat_mpathpersist.7 \

                           ocf_heartbeat_symlink.7 \

                           ocf_heartbeat_syslog-ng.7 \

                           ocf_heartbeat_tomcat.7 \

                           ocf_heartbeat_varnish.7 \

+                          ocf_heartbeat_vdo-vol.7 \

                           ocf_heartbeat_vmware.7 \

                           ocf_heartbeat_zabbixserver.7

diff --git a/heartbeat/Makefile.am b/heartbeat/Makefile.am

index 4f5059e2..a68fa978 100644

--- a/heartbeat/Makefile.am

+++ b/heartbeat/Makefile.am

@@ -162,6 +162,7 @@ ocf_SCRIPTS	     =  AoEtarget		\

 			syslog-ng		\

 			tomcat			\

 			varnish			\

+			vdo-vol			\

 			vmware			\

 			vsftpd			\

 			zabbixserver

diff --git a/heartbeat/vdo-vol b/heartbeat/vdo-vol

new file mode 100755

index 00000000..074339db

--- /dev/null

+++ b/heartbeat/vdo-vol

@@ -0,0 +1,234 @@

+#!/bin/sh

+#

+#  License:      GNU General Public License (GPL)

+#  (c) 2018 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

+#       vdo-vol : OCF resource agent script for VDO (Virtual Data Optimizer)

+#

+

+# Initialization:

+: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}

+. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs

+

+# Defaults

+OCF_RESKEY_volume_default=""

+

+: ${OCF_RESKEY_volume=${OCF_RESKEY_volume_default}}

+

+

+vdo_usage() {

+  cat <

+    usage: $0 (start|stop|validate-all|meta-data|help|usage|monitor)

+    $0 manages VDO (Virtual Data Optimizer) volume(s) as an OCF HA resource.

+    The 'start' operation starts the instance.

+    The 'stop' operation stops the instance.

+    The 'status' operation reports whether the instance is running

+    The 'monitor' operation reports whether the instance seems to be working

+    The 'validate-all' operation reports whether the parameters are valid

+END

+}

+

+vdo_meta_data() {

+        cat <

+

+

+<resource-agent name="vdo-vol">

+<version>0.75</version>

+

+<longdesc lang="en">

+OCF Resource script for VDO (Virtual Data Optimizer) volume(s). It manages VDO volume(s) as a HA resource.

+

+The configuration file needs to be synced to all nodes, and the systemd vdo service must be disabled when

+using this agent.

+</longdesc>

+<shortdesc lang="en">VDO resource agent</shortdesc>

+

+<parameters>

+

+<parameter name="config">

+    <longdesc lang="en">Configuration file</longdesc>

+    <shortdesc lang="en">Config file</shortdesc>

+    <content type="string" default="${OCF_RESKEY_config_default}" />

+</parameter>

+

+<parameter name="volume">

+    <longdesc lang="en">VDO Volume (leave empty for all)</longdesc>

+    <shortdesc lang="en">Volume (empty for all)</shortdesc>

+    <content type="string" default="${OCF_RESKEY_volume_default}" />

+</parameter>

+

+</parameters>

+

+<actions>

+<action name="start" timeout="60s" />

+<action name="stop" timeout="20s" />

+<action name="status" timeout="20s" />

+<action name="monitor" depth="0" timeout="20s" interval="10s" start-delay="10s" />

+<action name="validate-all" timeout="20s" />

+<action name="meta-data" timeout="20s" />

+</actions>

+</resource-agent>

+END

+}

+

+

+rebuild() {

+		ocf_log warn "${OCF_RESKEY_volume} is in $MODE mode, starting in rebuild mode"

+

+		vdo stop $OPTIONS

+

+		while vdo_monitor skiprocheck; do

+			sleep 1

+		done

+

+		vdo start $OPTIONS --forceRebuild

+

+		while ! vdo_monitor; do

+			sleep 1

+		done

+

+		return $?

+}

+

+vdo_start() {

+	# if resource is already running,no need to continue code after this.

+	if vdo_monitor; then

+		ocf_log info "VDO volume(s): ${OCF_RESKEY_volume} is already active"

+		return $OCF_SUCCESS

+	fi

+

+	vdo activate $OPTIONS

+	vdo start $OPTIONS

+

+	while ! vdo_monitor skiprocheck; do

+		sleep 1

+	done

+

+	MODE=$(vdostats --verbose ${OCF_RESKEY_volume} | grep "operating mode" | awk '{print $NF}')

+	if [ $(echo "$MODE" | grep -v "normal" | wc -l) -gt 0 ]; then

+		rebuild

+	fi

+

+	if [ $? -eq $OCF_SUCCESS ]; then

+		ocf_log info "VDO volume(s): ${OCF_RESKEY_volume} activated"

+		return ${OCF_SUCCESS}

+	fi

+

+	return $?

+}

+

+vdo_stop() {

+	vdo_monitor skiprocheck

+	if [ $? -ne $OCF_SUCCESS ]; then

+		# Currently not running. Nothing to do.

+		ocf_log info "VDO volume(s): ${OCF_RESKEY_volume} already deactivated"

+

+		return $OCF_SUCCESS

+	fi

+

+	vdo stop $OPTIONS

+	vdo deactivate $OPTIONS

+

+	# Wait for process to stop

+	while vdo_monitor skiprocheck; do

+		sleep 1

+	done

+

+	return $OCF_SUCCESS

+}

+

+vdo_monitor(){

+	status=$(vdo status $OPTIONS 2>&1)

+	MODE=$(vdostats vdo_vol --verbose | grep "operating mode" | awk '{print $NF}')

+

+	case "$status" in

+		*"Device mapper status: not available"*)

+			return $OCF_NOT_RUNNING

+			;;

+		*"Device mapper status: "*online*)

+			if [ "$MODE" = "read-only" ] && [ "$1" != "skiprocheck" ]; then

+				ocf_log err "VDO volume(s): ${OCF_RESKEY_volume} is in $MODE mode."

+				return $OCF_ERR_GENERIC

+			else

+				return $OCF_SUCCESS

+			fi

+			;;

+		*)

+			ocf_log err "VDO volume(s): ${OCF_RESKEY_volume} failed\n$status"

+			return $OCF_ERR_GENERIC;;

+	esac

+}

+

+vdo_validate_all(){

+	check_binary "vdo"

+

+	if systemctl is-enabled vdo > /dev/null 2>&1; then

+		ocf_exit_reason "systemd service vdo needs to be disabled"

+		exit $OCF_ERR_CONFIGURED

+	fi

+

+	if [ -n "${OCF_RESKEY_config}" ] && [ ! -f "${OCF_RESKEY_config}" ]; then

+		ocf_exit_reason "Configuration file: ${OCF_RESKEY_config} not found"

+		exit $OCF_ERR_CONFIGURED

+	fi

+

+	return $OCF_SUCCESS

+}

+

+

+# **************************** MAIN SCRIPT ************************************

+

+# Make sure meta-data and usage always succeed

+case $__OCF_ACTION in

+	meta-data)

+		vdo_meta_data

+		exit $OCF_SUCCESS

+		;;

+	usage|help)

+		vdo_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

+

+if [ -z "${OCF_RESKEY_volume}" ]; then

+	OPTIONS="-a"

+else

+	OPTIONS="-n ${OCF_RESKEY_volume}"

+fi

+

+if [ -n "${OCF_RESKEY_config}" ]; then

+	OPTIONS="$OPTIONS -f ${OCF_RESKEY_config}"

+fi

+

+# Translate each action into the appropriate function call

+case $__OCF_ACTION in

+	start)

+		vdo_validate_all

+		vdo_start;;

+	stop)

+		vdo_stop;;

+	status|monitor)

+		vdo_monitor;;

+	validate-all)

+		;;

+	*)

+		vdo_usage

+                exit $OCF_ERR_UNIMPLEMENTED;;

+esac

+

+exit $?

+

+# End of this script

-- 

2.17.1