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Diffstat (limited to 'heartbeat/lxd-info.in')
| -rw-r--r-- | heartbeat/lxd-info.in | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/heartbeat/lxd-info.in b/heartbeat/lxd-info.in new file mode 100644 index 0000000..f9fb44a --- /dev/null +++ b/heartbeat/lxd-info.in @@ -0,0 +1,156 @@ +#!@BASH_SHELL@ +# +# +# LXD Registration Service OCF Resource Agent +# It records (in the CIB) various attributes of a node +# +# Copyright (c) 2017 Mathieu Grzybek +# 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} +. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs + +# Parameter defaults + +OCF_RESKEY_pidfile_default="$HA_RSCTMP/LXDInfo-${OCF_RESOURCE_INSTANCE}" +OCF_RESKEY_delay_default="0s" +OCF_RESKEY_clone_default="0" + +: ${OCF_RESKEY_pidfile=${OCF_RESKEY_pidfile_default}} +: ${OCF_RESKEY_delay=${OCF_RESKEY_delay_default}} +: ${OCF_RESKEY_clone=${OCF_RESKEY_clone_default}} + +####################################################################### + +meta_data() { + cat <<END +<?xml version="1.0"?> +<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd"> +<resource-agent name="lxd-info" version="1.0"> +<version>1.0</version> + +<longdesc lang="en"> +This is a LXD Registration Service Resource Agent. +It records (in the CIB) attributes about the number of running LXD containers +running on the node. +Sample output: + lxd_containers: 5 +</longdesc> +<shortdesc lang="en">Records various node attributes in the CIB</shortdesc> + +<parameters> +<parameter name="pidfile" unique="0"> +<longdesc lang="en">PID file</longdesc> +<shortdesc lang="en">PID file</shortdesc> +<content type="string" default="${OCF_RESKEY_pidfile_default}" /> +</parameter> +<parameter name="delay" unique="0"> +<longdesc lang="en">Interval to allow values to stabilize</longdesc> +<shortdesc lang="en">Dampening Delay</shortdesc> +<content type="string" default="${OCF_RESKEY_delay_default}" /> +</parameter> +</parameters> + +<actions> +<action name="start" timeout="20s" /> +<action name="stop" timeout="20s" /> +<action name="monitor" timeout="20s" interval="60s"/> +<action name="meta-data" timeout="5s" /> +<action name="validate-all" timeout="20s" /> +</actions> +</resource-agent> +END +} + +####################################################################### + +LXDInfoStats() { + value=$(lxc list|grep -ci RUNNING) + echo -e "lxd_containers:\t$value" + ${HA_SBIN_DIR}/attrd_updater ${OCF_RESKEY_delay} -S status -n lxd_containers -v $value +} + +LXDInfo_usage() { + cat <<END +usage: $0 {start|stop|monitor|validate-all|meta-data} + +Expects to have a fully populated OCF RA-compliant environment set. +END +} + +LXDInfo_start() { + echo $OCF_RESKEY_clone > $OCF_RESKEY_pidfile + LXDInfoStats + exit $OCF_SUCCESS +} + +LXDInfo_stop() { + rm -f $OCF_RESKEY_pidfile + ${HA_SBIN_DIR}/attrd_updater ${OCF_RESKEY_delay} -D -S state -n lxd_containers + exit $OCF_SUCCESS +} + +LXDInfo_monitor() { + if [ -f "$OCF_RESKEY_pidfile" ] ; then + LXDInfoStats + exit $OCF_RUNNING + fi + exit $OCF_NOT_RUNNING +} + +LXDInfo_validate() { + return $OCF_SUCCESS +} + +if [ $# -ne 1 ]; then + LXDInfo_usage + exit $OCF_ERR_ARGS +fi + +if [ x != x${OCF_RESKEY_delay} ]; then + OCF_RESKEY_delay="-d ${OCF_RESKEY_delay}" +fi + +case $__OCF_ACTION in +meta-data) meta_data + exit $OCF_SUCCESS + ;; +start) LXDInfo_start + ;; +stop) LXDInfo_stop + ;; +monitor) LXDInfo_monitor + ;; +validate-all) LXDInfo_validate + ;; +usage|help) LXDInfo_usage + exit $OCF_SUCCESS + ;; +*) LXDInfo_usage + exit $OCF_ERR_UNIMPLEMENTED + ;; +esac + +exit $? |