functions

###############################################
TOP='/root/autoinstall'
function get_ip(){
	HOST_IP=`LC_ALL=C /sbin/ifconfig eth0 | grep -m 1 'inet addr:'| cut -d: -f2 | awk '{print $1}'`
	MASK=`LC_ALL=C /sbin/ifconfig eth0 | grep -m 1 'inet addr:'| cut -d: -f4`
	GW=`route -n | grep 'UG[ \t]' | awk '{print $2}'`
#	echo ${HOST_IP}
#	echo ${MASK}
#	echo ${GW}

}
function set_ip(){
	netconf='/etc/network/interfaces'
	dns='dns-nameservers 61.139.2.69'
	get_ip
	if ( grep -q "iface eth0 inet dhcp" ${netconf} ) && ( ! grep -q "${HOST_IP}" ${netconf} )
	then
		sed -i 's/dhcp/static/' ${netconf}
		echo "address ${HOST_IP}" >> ${netconf}
        	echo "netmask ${MASK}" >> ${netconf}
        	echo "gateway ${GW}" >> ${netconf}
        	echo ${dns} >> ${netconf}
	elif ( grep -q "iface eth0 inet dhcp" ${netconf} ) && ( grep -q "${HOST_IP}" ${netconf} )
	then
		echo "/etc/network/interface file error" && exit 44
	else
		echo "please check interface file"
	fi
}
function set_hostname(){
	hosts='/etc/hosts'
	h_name='/etc/hostname'
	get_ip
	ip=`echo ${HOST_IP} | cut -d. -f4`
	if [ -z $ip ];then
	echo "error" && exit 44
	elif grep -q "${HOST_IP}" ${hosts}
	then
		echo "exist hosts record"
	else 
		sed -i '/127.0.1.1/d' ${hosts}
		echo "${HOST_IP}	comp-$ip" >> ${hosts}
	hostname "comp-$ip"
	echo "comp-$ip" > ${h_name}
	fi
}

function set_apt_sources(){
	sources='/etc/apt/sources.list'
    sed -i "s/172.18.200.144/cn.archive.ubuntu.com/g" ${sources}
	filename='/etc/apt/sources.list.d/new.list'
	echo 'deb http://apt.puppetlabs.com precise main' > ${filename}
	echo 'deb-src http://apt.puppetlabs.com precise main' >> ${filename}
	echo 'deb http://apt.puppetlabs.com precise dependencies' >> ${filename}
	echo 'deb-src http://apt.puppetlabs.com precise dependencies' >> ${filename}
	echo 'deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-proposed/folsom main' >> ${filename}
	echo 'deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-updates/folsom main' >> ${filename}
}


function set_novaconfig(){
	conf="${TOP}/nova.conf"
 	novaconf='/etc/nova/nova.conf'
	if [ -f ${conf} ] && [ -f ${novaconf} ]
	then
 		cat ${conf} > ${novaconf}
 		sed -i -e "s/%local_ip%/${HOST_IP}/g" -e "s/%control_ip%/${CONTROL_IP}/g" -e "s/%mysql_password%/${MY_PW}/g" ${novaconf}
	else
		echo "nova config error" && exit 44
	fi

}