Add a shell script that will be the default replacement for the body of
backend.ActivateMasterIp and backend.DeactivateMasterIp.
Signed-off-by: Andrea Spadaccini <spadac...@google.com>
---
Makefile.am | 2 +
tools/master-ip-setup | 114 +++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 116 insertions(+), 0 deletions(-)
create mode 100755 tools/master-ip-setup
diff --git a/Makefile.am b/Makefile.am
index f9ebfeb..9feabe2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -549,6 +549,7 @@ nodist_pkglib_python_scripts = \
pkglib_SCRIPTS = \
daemons/daemon-util \
tools/kvm-ifup \
+ tools/master-ip-setup \
$(pkglib_python_scripts)
nodist_pkglib_SCRIPTS = \
@@ -578,6 +579,7 @@ EXTRA_DIST = \
$(pkglib_python_scripts) \
devel/upload.in \
tools/kvm-ifup.in \
+ tools/master-ip-setup \
$(docdot) \
$(docpng) \
$(docrst) \
diff --git a/tools/master-ip-setup b/tools/master-ip-setup
new file mode 100755
index 0000000..4c4e893
--- /dev/null
+++ b/tools/master-ip-setup
@@ -0,0 +1,114 @@
+#!/bin/bash
+#
+
+# Copyright (C) 2011 Google Inc.
+#
+# 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., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+USAGE_MSG="Usage: $0 {start|stop}"
+PATH=$PATH:/sbin:/usr/sbin:/usr/local/sbin
+
+# Check the environment variables common to both the actions
+check_common_env() {
+ if [[ -z $MASTER_IP ]]; then
+ echo "No master IP address specified."
+ exit 1
+ fi
+
+ if [[ -z $MASTER_NETMASK ]]; then
+ echo "No master netmask specified."
+ exit 1
+ fi
+
+ if [[ -z $MASTER_NETDEV ]]; then
+ echo "No master network device specified."
+ exit 1
+ fi
+}
+
+# Start the master IP
+start() {
+ if [[ -z $CLUSTER_IP_VERSION ]]; then
+ echo "No cluster IP version specified."
+ exit 1
+ fi
+
+ if [[ $CLUSTER_IP_VERSION == 4 ]]; then
+ ARP_COMMAND="arping -q -U -c 3 -I $MASTER_NETDEV -s $MASTER_IP $MASTER_IP"
+ elif [[ $CLUSTER_IP_VERSION == 6 ]]; then
+ ARP_COMMAND="ndisc6 -q r 3 $MASTER_IP $MASTER_NETDEV"
+ else
+ echo "Invalid cluster IP version specified: $CLUSTER_IP_VERSION"
+ exit 1
+ fi
+
+ # Check if the master IP is already configured on this machine
+ ip addr show | grep $MASTER_IP/$MASTER_NETMASK
+
+ if [[ $? == 0 ]]; then
+ echo "Master IP already configured on this machine. Doing nothing."
+ exit 0
+ fi
+
+ # Check if the master IP is already configured on another machine
+ ping $MASTER_IP -w 2
+ if [[ $? == 0 ]]; then
+ echo "Error: master IP configured on another machine."
+ exit 1
+ fi
+
+ ip address add $MASTER_IP/$MASTER_NETMASK dev $MASTER_NETDEV label
$MASTER_NETDEV:0
+
+ if [[ $? != 0 ]]; then
+ echo "Error during the activation of the master IP address"
+ exit 1
+ fi
+
+ # Send gratuituous ARP to update neighbours' ARP cache
+ $ARP_COMMAND
+}
+
+# Stop the master IP
+stop() {
+ ip address del $MASTER_IP/$MASTER_NETMASK dev $MASTER_NETDEV
+
+ if [[ $? != 0 ]]; then
+ echo "Error during the deactivation of the master IP address"
+ exit 1
+ fi
+}
+
+if (( $# < 1 )); then
+ echo $USAGE_MSG
+ exit 1
+fi
+
+check_common_env
+
+case "$1" in
+ start)
+ start
+ ;;
+ stop)
+ stop
+ ;;
+ *)
+ echo $USAGE_MSG
+ exit 1
+ ;;
+esac
+
+exit 0
--
1.7.3.1
