160 lines
4.0 KiB
Bash
160 lines
4.0 KiB
Bash
#!/bin/bash
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#============================================================================
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# xend-relocation
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#
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# Version = 1.0.3
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# Date = 2007-09-14
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#
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# Maintainer(s) = Ron Terry - ron (at) pronetworkconsulting (dot) com
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#
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# The latest version can be found at:
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#
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# http://pronetworkconsulting.com/linux/scripts/xend-relocation.html
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#
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# Description:
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#
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# This script is used to enable or disable the VM relocation (migration)
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# feature of xend. It can be used to manage the local instance of xend
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# or both the local instance and instances of xend on the other machines
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# to/from which VMs can be relocated.
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# To manage the instances of xend on other machines this script communicates
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# using ssh so it is recomended that if you use this feature you
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# pre-distribute ssh keys between the servers.
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#
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# Depends on:
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#
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# Can use: /etc/sysconfig/xend
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#
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# Usage: xend-relocation (start|stop|status)
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# or
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# xend-relocation (on|off|status)
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#
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# Vars:
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#
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# XEN_CONFIG_FILE
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#
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# RELOCATION_NODELIST
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#
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# MANAGE_ALL_RELOCATION_NODES
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#
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# XEN_RELOCATION_PORT
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#
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#============================================================================
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#### Read config files and set variables ##################################
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# If you source the /etc/sysconfig/xend file comment out the variables
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# being set in this script.
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. /etc/sysconfig/xend
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XEN_CONFIG_FILE="/etc/xen/xend-config.sxp"
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#### Script Functions #####################################################
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usage(){
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echo ""
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echo "Usage: xend-relocation {start|stop|status}"
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echo " or"
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echo " xend-relocation {on|off|status}"
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echo ""
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}
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relocate_on() {
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for NODE in $RELOCATION_NODELIST
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do
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case $NODE in
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any)
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SSHCMD=""
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RELOCATION_NODELIST=""
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;;
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*)
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if [ "$MANAGE_ALL_RELOCATION_NODES" = "true" ]
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then
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SSHCMD="ssh root@$NODE "
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else
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SSHCMD=""
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fi
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;;
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esac
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$SSHCMD sed -i "s/^#(xend-relocation-server yes)/(xend-relocation-server yes)/g" $XEN_CONFIG_FILE
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$SSHCMD sed -i "s/^#(xend-relocation-server no)/(xend-relocation-server yes)/g" $XEN_CONFIG_FILE
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$SSHCMD sed -i "s/^#(xend-relocation-port [^)]*)/(xend-relocation-port $XEN_RELOCATION_PORT)/g" $XEN_CONFIG_FILE
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$SSHCMD sed -i "s/^(xend-relocation-hosts-allow \(.*\)/###(xend-relocation-hosts-allow \1/g" $XEN_CONFIG_FILE
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$SSHCMD sed -i "s/^#(xend-relocation-hosts-allow .*/(xend-relocation-hosts-allow \'$RELOCATION_NODELIST')/g" $XEN_CONFIG_FILE
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$SSHCMD rcxend restart
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if [ "$NODE" = "any" ] || [ "$MANAGE_ALL_RELOCATION_NODES" = "false" ]
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then
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exit 0
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fi
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done
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}
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relocate_off() {
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for NODE in $RELOCATION_NODELIST
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do
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case $NODE in
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any)
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SSHCMD=""
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RELOCATION_NODELIST=""
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;;
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*)
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SSHCMD="ssh root@$NODE "
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;;
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esac
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$SSHCMD sed -i "s/^(xend-relocation-server yes)/#(xend-relocation-server yes)/g" $XEN_CONFIG_FILE
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$SSHCMD sed -i "s/^(xend-relocation-port [^)]*)/#(xend-relocation-port $XEN_RELOCATION_PORT)/g" $XEN_CONFIG_FILE
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$SSHCMD sed -i "s/^(xend-relocation-hosts-allow .*/#(xend-relocation-hosts-allow \'$RELOCATION_NODELIST')/g" $XEN_CONFIG_FILE
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$SSHCMD rcxend restart
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if [ "$NODE" = "any" ] || [ "$MANAGE_ALL_RELOCATION_NODES" = "false" ]
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then
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exit 0
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fi
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done
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}
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relocate_status() {
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if grep -q "^(xend-relocation-server .*yes)" $XEN_CONFIG_FILE
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then
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ENABLED="yes"
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elif egrep -q "(^\(xend-relocation-server .*no\)|^#\(xend-relocation-server .*no\)|^#\(xend-relocation-server .*yes\))" $XEN_CONFIG_FILE
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then
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ENABLED="no"
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fi
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echo ""
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echo "Xend Relocation Server Enabled: $ENABLED"
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echo ""
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}
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#### Script Body ##########################################################
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case $1 in
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on|ON|On|start)
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case $ENABLE_RELOCATION in
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true)
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relocate_on
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;;
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false)
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;;
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esac
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exit 0
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;;
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off|OFF|Off|stop)
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relocate_off
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exit 0
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;;
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status|STATUS|Status)
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relocate_status
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exit 0
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;;
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*)
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usage
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exit 1
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;;
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esac
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