tencent cloud

#!/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

chmod +x /etc/init.d/os_config
chkconfig --add os_config

chkconfig --list