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#!/bin/sh
#
# License: GNU General Public License (GPL)
# (c) 2020 Etzion Bar Noy
# and Linux-HA contributors
# Derived from oraasm agent by O. Albrigtsen
#
# -----------------------------------------------------------------------------
# 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
# oraasmdg : OCF resource agent script for Oracle ASM
#
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
# Defaults
OCF_RESKEY_user_default="grid"
: ${OCF_RESKEY_user=${OCF_RESKEY_user_default}}
oraasmdg_usage() {
cat <<END
usage: $0 (start|stop|validate-all|meta-data|help|usage|monitor)
$0 manages a Oracle ASM Disk Group through Oracle GI commands
The 'start' operation starts the diskgroup, or waits for the ASM DG to become available
The 'stop' operation stops the ASM diskgroup
The 'status' operation reports whether the ASM diskgroup is active
The 'monitor' operation is similar to status
The 'validate-all' operation reports whether the parameters are valid
END
}
oraasmdg_meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="oraasmdg">
<version>0.75</version>
<longdesc lang="en">OCF Resource script for Oracle ASM DiskGroup. It is based on existing Oracle GI cluster.</longdesc>
<shortdesc lang="en">Oracle ASM DiskGroup resource agent</shortdesc>
<parameters>
<parameter name="user">
<longdesc lang="en">Oracle Grid user</longdesc>
<shortdesc lang="en">Oracle Grid user</shortdesc>
<content type="string" default="${OCF_RESKEY_user_default}" />
</parameter>
<parameter name="diskgroup" required="1">
<longdesc lang="en">
The name of the Oracle Disk Group.
If not specified, then the Disk Group along with its home should be listed in /etc/oratab.
</longdesc>
<shortdesc lang="en">Oracle Disk Group</shortdesc>
<content type="string" default="" />
</parameter>
<parameter name="home" unique="0" required="1">
<longdesc lang="en">The Oracle Grid home directory</longdesc>
<shortdesc lang="en">home</shortdesc>
<content type="string" default="" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="180s" />
<action name="stop" timeout="60s" />
<action name="status" timeout="30s" />
<action name="monitor" depth="0" timeout="30s" interval="10s" />
<action name="validate-all" timeout="5s" />
<action name="meta-data" timeout="5s" />
</actions>
</resource-agent>
END
}
oraasmdg_methods() {
cat <<-!
start
stop
status
monitor
validate-all
methods
meta-data
usage
!
}
#oraasm_getconfig() {
# [ x = "x$OCF_RESKEY_home" ] &&
# OCF_RESKEY_home=`awk -F: "/^+$OCF_RESKEY_diskgroup:/"'{print $2}' /etc/oratab`
# PATH="$OCF_RESKEY_home/bin:$PATH"
#
# ORA_ENVF=`mktemp`
# cat << EOF > $ORA_ENVF
#PATH="$OCF_RESKEY_home/bin:$PATH"
#EOF
# chmod 644 $ORA_ENVF
# trap "rm -f $ORA_ENVF" EXIT
#}
oraasmdg_getconfig() {
# Makes sure all executables are present where they should be
CRSCTL=${OCF_RESKEY_home}/bin/crsctl
SRVCTL=${OCF_RESKEY_home}/bin/srvctl
PATH=$PATH:${OCF_RESKEY_home}/bin
DG=${OCF_RESKEY_diskgroup}
}
cluster_status() {
# Checks if the cluster is up at all
$CRSCTL status res -t > /dev/null 2>&1
return $?
}
diskgroup_status() {
COUNTER=10
while ! oraasmdg_monitor ; do
sleep 5
let COUNTER--
if [[ $COUNTER -eq 0 ]]; then
break
fi
done
oraasmdg_monitor
return $?
}
diskgroup_mount_cluster() {
# Perform the actual resource call for GI
su - ${OCF_RESKEY_user} -c "$SRVCTL start diskgroup -diskgroup ${OCF_RESKEY_diskgroup} -node `hostname -s`"
return $?
}
oraasmdg_start() {
# if resource is already running, no need to continue code after this.
if ! cluster_status; then
ocf_log info "Oracle GI is down. Waiting for it to go up"
while ! cluster_status; do
sleep 1
done
fi
ocf_log info "Oracle GI is up"
# Cluster is now up. Is our ASM resource up?
# Check ASM diskgroup status
if diskgroup_status; then
# Diskgroup is active on this node, so we return success
return $OCF_SUCCESS
fi
# Diskgroup is not active on this node. We might want to actually try to start it
if ! diskgroup_mount_cluster; then
# We have a problem where the start command cannot run. We need to stop now
return $OCF_ERR_GENERIC
fi
# Let ASM settle
sleep 5
if diskgroup_status; then
# Diskgroup is active on this node, so we return success
return $OCF_SUCCESS
else
return $OCF_ERR_GENERIC
fi
}
oraasmdg_stop() {
oraasmdg_monitor
if [ $? -ne $OCF_SUCCESS ]; then
# Currently not running. Nothing to do.
ocf_log info "Oracle ASM diskgroup is already stopped"
return $OCF_SUCCESS
fi
# As a rule - we let Oracle GI manage, as much as possible, the ASM diskgroups, so we avoid taking them down.
return $OCF_SUCCESS
}
oraasmdg_monitor() {
$CRSCTL status res ora.${OCF_RESKEY_diskgroup}.dg | grep -q `hostname -s`
case "$?" in
0)
rc=$OCF_SUCCESS
;;
1)
rc=$OCF_NOT_RUNNING
ocf_log info "Oracle ASM diskgroup is not running on this host"
;;
*)
rc=$OCF_ERR_GENERIC
;;
esac
return $rc
}
oraasmdg_status() {
rc=$(oraasmdg_monitor)
return $rc
}
oraasmdg_validate_all() {
if [ x = "x$OCF_RESKEY_home" ]; then
ocf_exit_reason "home not set"
return $OCF_ERR_CONFIGURED
fi
if [ x = "x$OCF_RESKEY_diskgroup" ]; then
ocf_exit_reason "Diskgroup not set"
return $OCF_ERR_CONFIGURED
fi
}
OCF_REQUIRED_PARAMS="user diskgroup home"
ocf_rarun $*
# vim:tabstop=4:shiftwidth=4:textwidth=0:wrapmargin=0

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