Cobbler 自動安裝linux

cobble 官網

http://cobbler.github.io/

快速入門

http://cobbler.github.io/manuals/quickstart/

Web 通路

http://cobbler.github.io/manuals/2.8.0/5_-_Web_Interface.html

更新EPEL使用淘寶源

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

安裝Cobbler

yum install -y httpd tftp dhcp cobbler cobbler-web pykickstart

rpm -ql cobbler

/etc/cobbler # 配置檔案目錄

/etc/cobbler/settings # cobbler主配置檔案，這個檔案是YAML格式，Cobbler是python寫的程式。

/etc/cobbler/dhcp.template # DHCP服務的配置模闆

/etc/cobbler/tftpd.template # tftp服務的配置模闆

/etc/cobbler/rsync.template # rsync服務的配置模闆

/etc/cobbler/iso # iso模闆配置檔案目錄

/etc/cobbler/pxe # pxe模闆檔案目錄

/etc/cobbler/power # 電源的配置檔案目錄

/etc/cobbler/users.conf # Web服務授權配置檔案

/etc/cobbler/users.digest # 用于web通路的使用者名密碼配置檔案

/etc/cobbler/dnsmasq.template # DNS服務的配置模闆

/etc/cobbler/modules.conf # Cobbler子產品配置檔案

/var/lib/cobbler # Cobbler資料目錄

/var/lib/cobbler/config # 配置檔案

/var/lib/cobbler/kickstarts # 預設存放kickstart檔案

/var/lib/cobbler/loaders # 存放的各種引導程式

/var/www/cobbler # 系統安裝鏡像目錄

/var/www/cobbler/ks_mirror # 導入的系統鏡像清單

/var/www/cobbler/images # 導入的系統鏡像啟動檔案

/var/www/cobbler/repo_mirror # yum源存儲目錄

/var/log/cobbler # 日志目錄

/var/log/cobbler/install.log # 用戶端系統安裝日志

/var/log/cobbler/cobbler.log # cobbler日志

systemctl start httpd cobblerd

systemctl status httpd cobblerd

systemctl enable httpd cobblerd

部署校驗

這貨有一個自我檢查的指令，可以知道在部署前還需要解決哪些問題

cobbler check

還有9個問題要處理，容我處理下

設定伺服器IP

The 'server' field in /etc/cobbler/settings must be set to something other than localhost, or kickstarting features will not work. This should be a resolvable hostname or IP for the boot server as reachable by all machines that will use it.

vi /etc/cobbler/settings

cat /etc/cobbler/settings | grep -v ^# | grep -v ^$

改3個地方

bind_master: 192.168.10.10

next_server: 192.168.10.10

server: 192.168.10.10

禁用SELinux

SELinux is enabled. Please review the following wiki page for details on ensuring cobbler works correctly in your SELinux environment:

https://github.com/cobbler/cobbler/wiki/Selinux

systemctl stop firewalld

systemctl disable firewalld

sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config

grep SELINUX=disabled /etc/selinux/config

setenforce 0

開啟TFTP

change 'disable' to 'no' in /etc/xinetd.d/tftp

vi /etc/xinetd.d/tftp

開啟rsync

enable and start rsyncd.service with systemctl

systemctl start rsyncd

systemctl enable rsyncd

安裝fencing

fencing tools were not found, and are required to use the (optional) power management features. install cman or fence-agents to use them

rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

yum install -y fence-agents

systemctl restart cobblerd

cobbler check

剩下4個問題

下載下傳啟動程式

Some network boot-loaders are missing from /var/lib/cobbler/loaders, you may run 'cobbler get-loaders' to download them, or, if you only want to handle x86/x86_64 netbooting, you may ensure that you have installed a *recent* version of the syslinux package installed and can ignore this message entirely. Files in this directory, should you want to support all architectures, should include pxelinux.0, menu.c32, elilo.efi, and yaboot. The 'cobbler get-loaders' command is the easiest way to resolve these requirements.

cobbler get-loaders

安裝大便鏡像package

debmirror package is not installed, it will be required to manage debian deployments and repositories

yum install -y debmirror.noarch

The default password used by the sample templates for newly installed machines (default_password_crypted in /etc/cobbler/settings) is still set to 'cobbler' and should be changed, try: "openssl passwd -1 -salt 'random-phrase-here' 'your-password-here'" to generate new one

openssl passwd -1 -salt 'random-phrase-here' '12345.com'

$1$random-p$N2Gta7Jon4dskSI6zKe5C1

把default_password_crypted 替換成新密碼

cobbler sync

還剩下2個問題

vi /etc/debmirror.conf

2行注釋拿掉

應用配置檔案

systemctl restart cobblerd

cobbler sync

all system go

開啟dhcp和pxe

sed -i 's/manage_dhcp: 0/manage_dhcp: 1/g' /etc/cobbler/settings

cat /etc/cobbler/settings | grep manage_dhcp

sed -i 's/pxe_just_once: 0/pxe_just_once: 1/' /etc/cobbler/settings

cat /etc/cobbler/settings |grep pxe_just

設定dhcp ip 位址池

cp /etc/cobbler/dhcp.template /etc/cobbler/dhcp.template.original

vi /etc/cobbler/dhcp.template

systemctl restart dhcpd

systemctl enable dhcpd

挂載鏡像

mount -t iso9660 -o ro /dev/cdrom /mnt

導入鏡像

cobbler import --path=/mnt/ --name=CentOS-7.5-x86_64 --arch=x86_64

cobbler distro list

ls /var/www/cobbler/ks_mirror/

檢視鏡像檔案資訊

cobbler list

cobbler distro report --name=CentOS-7.5-x86_64

修改網卡配置，因為cenos 7之後網卡從eth0變成ens打頭的了

cobbler profile report

cobbler profile edit --name=CentOS-7.5-x86_64 --kopts='net.ifnames=0 biosdevname=0'

cobbler profile report --name=CentOS-7.5-x86_64

同步下資料

自定義pxe菜單

vi /etc/cobbler/pxe/pxedefault.template

眼睛一閉就好了

直接指定IP和MAC 綁定某一個安裝菜單

cobbler system add --name=CentOS --mac=00:0C:29:D6:4F:57 --profile=CentOS-7.5-x86_64 --ip-address=192.168.10.100 --subnet=255.255.255.0 --gateway=192.168.10.2 --interface=eth0 --static=1 --hostname=linux_node --name-servers="8.8.8.8"

同步資料

cobbler system list

問題 找不到boot，磁盤空間不足

容我修個錯誤

https://access.redhat.com/solutions/3353961

Root Cause

• The memory defined for the system is not sufficient hence it is unable to process/download the live image.
• Minimum of 2GB of memory should be allocated.

虛拟機給2G記憶體搞定

問題 禁止PXE

cobbler profile edit --name=CentOS-7.5-x86_64 --enable-gpxe=False