gistfile1.txt

#!/bin/bash
### BEGIN INIT INFO
# Provides:          os-config
# Required-Start:    $local_fs $network $named $remote_fs
# Required-Stop:
# Should-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: config of os-init job
# Description: run the config phase without cloud-init
### END INIT INFO
###################user settings#####################
cdrom_path=`blkid -L config-2`
load_os_config() {
 mount_path=$(mktemp -d /mnt/tmp.XXXX)
 mount /dev/cdrom $mount_path
 if [[ -f $mount_path/qcloud_action/os.conf ]]; then
     . $mount_path/qcloud_action/os.conf
     if [[ -n $password ]]; then
         passwd_file=$(mktemp /mnt/pass.XXXX)
         passwd_line=$(grep password $mount_path/qcloud_action/os.conf)
         echo root:${passwd_line#*=} > $passwd_file
     fi
     return 0
 else 
     return 1
 fi
}
cleanup() {
 umount /dev/cdrom
 if [[ -f $passwd_file ]]; then
     echo $passwd_file
     rm -f $passwd_file
 fi
 if [[ -d $mount_path ]]; then
     echo $mount_path
     rm -rf $mount_path
 fi
}
config_password() {
 if [[ -f $passwd_file ]]; then
     chpasswd -e < $passwd_file
 fi
}
config_hostname(){
 if [[ -n $hostname ]]; then
     sed -i "/^HOSTNAME=.*/d" /etc/sysconfig/network
     echo "HOSTNAME=$hostname" >> /etc/sysconfig/network
 fi
}
config_dns() {
 if [[ -n $dns_nameserver ]]; then
     dns_conf=/etc/resolv.conf
     sed -i '/^nameserver.*/d' $dns_conf
     for i in $dns_nameserver; do
         echo "nameserver $i" >> $dns_conf
     done
 fi
}
config_network() {
 /etc/init.d/network stop
 cat << EOF > /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
IPADDR=$eth0_ip_addr
NETMASK=$eth0_netmask
HWADDR=$eth0_mac_addr
ONBOOT=yes
GATEWAY=$eth0_gateway
BOOTPROTO=static
EOF
 if [[ -n $hostname ]]; then
     sed -i "/^${eth0_ip_addr}.*/d" /etc/hosts
     echo "${eth0_ip_addr} $hostname" >> /etc/hosts
 fi
 /etc/init.d/network start
}
config_gateway() {
 sed -i "s/^GATEWAY=.*/GATEWAY=$eth0_gateway" /etc/sysconfig/network
}
###################init#####################
start() {
 if load_os_config ; then
     config_password
     config_hostname
     config_dns
     config_network
     cleanup
     exit 0
 else 
     echo "mount ${cdrom_path} failed"
     exit 1
 fi
}
RETVAL=0
case "$1" in
 start)
     start
     RETVAL=$?
 ;;
 *)
     echo "Usage: $0 {start}"
     RETVAL=3
 ;;
esac
exit $RETVAL