xcat-core/xCAT/postscripts/sudoer

#!/bin/sh 
# IBM(c) 2013 EPL license http://www.eclipse.org/legal/epl-v10.html
#------------------------------------------------------------------------------
#
# Setup a sudoer named xcat and copy the xCAT public SSH key in its 
# authorized_keys file. Only applies to Linux.
#
#------------------------------------------------------------------------------

# Configuration for the sudoer
SUDOER="xcat"
SUDOERPW="rootpw"
PRIV="$SUDOER ALL=(ALL) NOPASSWD: ALL"
SEED=`date "+%s"`
ENCRYPT=`perl -e "print crypt($SUDOERPW, $SEED)"`

# Create sudoer
/usr/sbin/userdel $SUDOER
/usr/sbin/useradd -p $ENCRYPT -m $SUDOER
echo "$PRIV" >> /etc/sudoers
if [ -e "/etc/redhat-release" ]; then
    echo "Defaults:$SUDOER !requiretty" >> /etc/sudoers
fi

# Find sudoer home
HOME=`egrep "^$SUDOER:" /etc/passwd | cut -f6 -d :`

# Create the SSH directory in sudoer's home
mkdir -p $HOME/.ssh/
sleep 1

rm -rf $HOME/.ssh/authorized_keys

#-----------------
# Retrieve DSA key
#-----------------
KEY=`cat /xcatpost/hostkeys/ssh_host_rsa_key.pub`

# Put key in authorized_keys file
echo -e $KEY >> $HOME/.ssh/authorized_keys


#-----------------
# Retrieve RSA key
#-----------------
KEY=`cat /xcatpost/hostkeys/ssh_host_dsa_key.pub`

# Put key in authorized_keys file
echo -e $KEY >> $HOME/.ssh/authorized_keys
chmod 0644 $HOME/.ssh/authorized_keys
chown $SUDOER:users $HOME/.ssh/authorized_keys


# Restart the SSHD for syncfiles postscript to do the sync work
logger -t xCAT -p local4.info "Restarting SSHD"
if [ -f "/etc/debian_version" ];then
    service ssh restart
else
    service sshd restart
fi