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#!@BASH_SHELL@
#
# Copyright (C) 1997-2003 Sistina Software, Inc. All rights reserved.
# Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
#
# Use corosync-quorumtool to figure out if the specified node is a member
# of the cluster. Returns 1 if not a member, and
# 0 if the node is happily running.
#
# Tested on RHEL6 and F17 Note that the old version of this function utilized
# clustat, which had introspection in to the configuration.
# If a node was not found, the old version would return '2', but the only
# consumer of this function never cared about that value.
#
is_node_member_clustat()
{
local node="$1"
local output_list
# Still having a tag while (a) online but (b) not running pacemaker
# (e.g. crm_node) or rgmanager not considered adequate for things like
# the LVM agent - so we use corosync-quorumtool instead. The function
# name really should be changed.
#
# corosync 1.4.1 output looks like:
#
# # corosync-quorumtool -l
# Nodeid Name
# 1 rhel6-1
# 2 rhel6-2
#
# corosync 2.0.1 output looks like:
# # corosync-quorumtool -l
#
# Membership information
# ----------------------
# Nodeid Votes Name
# 1 1 rhel7-1.priv.redhat.com
# 2 1 rhel7-2.priv.redhat.com
#
output_list=$(corosync-quorumtool -l | grep -v "^Nodeid")
# first try searching for the node in the output as both a FQDN or shortname
echo "$output_list" | grep -i -e " $node\$" -e " $node\..*\$" &> /dev/null && return 0
# if the node was not found in the quorum list, try any known aliases found in /etc/hosts
for alias in $(cat /etc/hosts | grep -e "\s$node\s" -e "\s$node\$" | tail -n 1 | sed 's/\t/ /g' | cut -f2- -d " ");
do
echo "$output_list" | grep -i -e " $alias\$" &> /dev/null && return 0
done
return 1
}
#
# Print the local node name to stdout
# Returns 0 if could be found, 1 if not
# Tested on RHEL6 (cman) and Fedora 17 (corosync/pacemaker)
#
local_node_name()
{
local node nid localid
if which magma_tool &> /dev/null; then
# Use magma_tool, if available.
line=$(magma_tool localname | grep "^Local")
if [ -n "$line" ]; then
echo ${line/* = /}
return 0
fi
fi
if which cman_tool &> /dev/null; then
# Use cman_tool
line=$(cman_tool status | grep -i "Node name: $1")
[ -n "$line" ] || return 1
echo ${line/*name: /}
return 0
fi
if ! which crm_node &> /dev/null; then
# no crm_node? :(
return 2
fi
localid=$(crm_node -i)
while read nid node; do
if [ "$nid" = "$localid" ]; then
echo $node
return 0
fi
done < <(crm_node -l)
return 1
}
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