自动化配置kickstart 服务器

   上一篇刚刚完成了nagios的自动安装，这篇继续吧，想到前些天手动配置kickstart服务器过程比较繁琐，思路也不够清晰，还是把安装配置过程写进脚本非常方便，感觉是一劳永逸，降低后续工作的劳动量，而且整个思路过程比较清晰。

   实验环境：centos6.3 x86_64

   关闭了防火墙, SELinux设为Disabled

   注意：虚拟机需要先载入centos6.3 x86_64的安装镜像iso

         脚本里的MAC地址需要修改为你当前机器的MAC地址

         ks.cfg配置文件中关于设定客户机密码需要改为自己设定

   直接执行该脚本即可开始安装配置kickstart。

#!/bin/bash
#auto install kickstart server

LANG=C
mkdir /tftpboot
mkdir /tftpboot/pxelinux.cfg
mkdir /mnt/iso
mount -o loop /dev/dvd /mnt/iso

function init_pack()
{
     yum -y install dhcp httpd xinetd tftp tftp-server syslinux
     chkconfig httpd on
     chkconfig dhcpd on
     chkconfig xinetd on
     service httpd start
     service dhcpd start
     service xinetd start

}


function set_tftp()
{
     cp /etc/xinetd.d/tftp /etc/xinetd.d/tftp.bak
     echo 'service tftp
{
          disable                 = no
          socket_type             = dgram
          protocol                = udp
          wait                    = yes
          user                    = root
          server                  = /usr/sbin/in.tftpd
          server_args             = -u nobody -s /tftpboot
          per_source              = 11
          cps                     = 100 2
          flags                   = IPv4
 }' > /etc/xinetd.d/tftp                    #need to format the text
}

function set_eth()
{
     echo 'DEVICE="eth0"
     BOOTPROTO="static"
     IPADDR="192.168.10.1"
     NETMASK="255.255.255.0"
     GATEWAY="192.168.10.1"
     HWADDR="08:00:27:6B:2F:46"
     NM_CONTROLLED="yes"
     ONBOOT="yes"' > /etc/sysconfig/network-scripts/ifcfg-eth0          #need to format the text
     sed -i 's/^ *//g' /etc/sysconfig/network-scripts/ifcfg-eth0
     ifdown eth0;ifup eth0
}

function set_dhcp()
{
     sed -i '1,$s/^/#/g' /etc/dhcp/dhcpd.conf
     echo 'subnet 192.168.10.0 netmask 255.255.255.0 {
     option routers 192.168.10.1;
     option subnet-mask 255.255.255.0;
     range 192.168.10.10 192.168.10.50;
     next-server 192.168.10.1;
     default-lease-time 600;
     max-lease-time 7200;
     filename "pxelinux.0";
     allow booting;
     allow bootp;
     }' >> /etc/dhcp/dhcpd.conf             #need to format the text
     sed -i 's/^ *//g' /etc/dhcp/dhcpd.conf  #remove the blanks at beginning
     service dhcpd restart
}

function cp_files()
{
     cp -rv /mnt/iso/* /var/www/html
     cp -v /mnt/iso/isolinux/initrd.img /tftpboot
     cp -v /mnt/iso/isolinux/isolinux.cfg /tftpboot/pxelinux.cfg/default
     cp -v /mnt/iso/isolinux/vmlinuz /tftpboot
     cp -v /mnt/iso/isolinux/vesamenu.c32 /tftpboot/vesamenu.c32
     cp -v /usr/share/syslinux/pxelinux.0 /tftpboot
     chmod +x /tftpboot/pxelinux.cfg/default
     chcon -u system_u -t tftpdir_t /tftpboot -R        #modify the selinux context type
     chcon --reference=/var/www/html /var/www/html -R

}

function set_kscfg()
{
     echo '#platform=x86, AMD64, or Intel EM64T
     #version=DEVEL
     # Firewall configuration
     firewall --disabled
     # Install OS instead of upgrade
     install
     # Use network installation
     url --url="http://192.168.10.1/"
     # Root password
     rootpw --iscrypted $1$xhuJUwps$czE5aVuNeRhrbQYZ8YAmy1  #密码自己设定，可用明文也可加密
     # System authorization information
     auth  --useshadow  --passalgo=sha512
     # Use graphical install
     graphical
     firstboot --disable
     # System keyboard
     keyboard us
     # System language
     lang en_US
     # SELinux configuration
     selinux --permissive
     # Do not configure the X Window System
     skipx
     # Installation logging level
     logging --level=info
     # Reboot after installation
     reboot
     # System timezone
     timezone --isUtc Asia/Chongqing
     # Network information
     network  --bootproto=dhcp --device=eth0 --onboot=on
     # System bootloader configuration
     bootloader --location=mbr
     # Partition clearing information
     clearpart --all --initlabel
     # Disk partitioning information
     part /boot --fstype="ext4" --size=200
     part / --fstype="ext4" --size=6000
     part swap --fstype="swap" --size=512
     part /home --fstype="ext4" --size=1024

     %packages
     @additional-devel
     @development

     %end' > /var/www/html/ks.cfg
     sed -i 's/^ *//g' /var/www/html/ks.cfg
     chmod 755 /var/www/html/ks.cfg
     chcon --reference=/var/www/html /var/www/html/ks.cfg
}
function set_default()
{
     echo 'default vesamenu.c32
     #prompt 1
     timeout 30

     display boot.msg

     menu background splash.jpg
     menu title Welcome to CentOS 6.3!
     menu color border 0 #ffffffff #00000000
     menu color sel 7 #ffffffff #ff000000
     menu color title 0 #ffffffff #00000000
     menu color tabmsg 0 #ffffffff #00000000
     menu color unsel 0 #ffffffff #00000000
     menu color hotsel 0 #ff000000 #ffffffff
     menu color hotkey 7 #ffffffff #ff000000
     menu color scrollbar 0 #ffffffff #00000000

     label linux
       menu label ^Install or upgrade an existing system
       menu default
       kernel vmlinuz
       append initrd=initrd.img ks=http://192.168.10.1/ks.cfg
     label vesa
       menu label Install system with ^basic video driver
       kernel vmlinuz
       append initrd=initrd.img xdriver=vesa nomodeset
     label rescue
       menu label ^Rescue installed system
       kernel vmlinuz
       append initrd=initrd.img rescue
     label local
       menu label Boot from ^local drive
       localboot 0xffff
     label memtest86
       menu label ^Memory test
       kernel memtest
       append -' > /tftpboot/pxelinux.cfg/default
     sed -i 's/^ *//g' /tftpboot/pxelinux.cfg/default
     chcon -u system_u -t tftpdir_t /tftpboot/pxelinux.cfg/default
}

init_pack
if [ $(rpm -q tftp) -a $(rpm -q dhcp) -a $(rpm -q httpd) -a $(rpm -q syslinux) ]; then      #check if these services have been installed
    set_tftp
    set_eth
    set_dhcp
    cp_files
    set_kscfg
    set_default
else
    echo "installed incompleted."
fi