cobbler
cobbler
1. cobbler简介
Cobbler是一个Linux服务器安装的服务，可以通过网络启动(PXE)的方式来快速安装、重装物理服务器和虚拟机，同时还可以管理DHCP，DNS等。
Cobbler可以使用命令行方式管理，也提供了基于Web的界面管理工具(cobbler-web)，还提供了API接口，可以方便二次开发使用。
Cobbler是较早前的kickstart的升级版，优点是比较容易配置，还自带web界面比较易于管理。
Cobbler内置了一个轻量级配置管理系统，但它也支持和其它配置管理系统集成，如Puppet，暂时不支持SaltStack。
Cobbler官网
cobbler集成的服务
- PXE服务支持
- DHCP服务管理
- DNS服务管理(可选bind,dnsmasq)
- 电源管理
- Kickstart服务支持
- YUM仓库管理
- TFTP(PXE启动时需要)
- Apache(提供kickstart的安装源，并提供定制化的kickstart配置)
cobbler配置文件详解
cobbler配置文件目录在/etc/cobbler
| 配置文件 | 作用 |
|---|---|
| /etc/cobbler/settings | cobbler 主配置文件 |
| /etc/cobbler/iso/ | iso模板配置文件 |
| /etc/cobbler/pxe | pxe模板配置文件 |
| /etc/cobbler/power | 电源配置文件 |
| /etc/cobbler/user.conf | web服务授权配置文件 |
| /etc/cobbler/users.digest | web访问的用户名密码配置文件 |
| /etc/cobbler/dhcp.template | dhcp服务器的的配置模板 |
| /etc/cobbler/dnsmasq.template | dns服务器的配置模板 |
| /etc/cobbler/tftpd.template | tftp服务的配置模板 |
| /etc/cobbler/modules.conf | 模块的配置文件 |
cobbler数据目录
| 目录 | 作用 |
|---|---|
| /var/lib/cobbler/config/ | 用于存放distros，system，profiles等信息配置文件 |
| /var/lib/cobbler/triggers/ | 用于存放用户定义的cobbler命令 |
| /var/lib/cobbler/kickstart/ | 默认存放kickstart文件 |
| /var/lib/cobbler/loaders/ | 存放各种引导程序以及镜像目录 |
| /var/www/cobbler/ks_mirror/ | 导入的发行版系统的所有数据 |
| /var/www/cobbler/images/ | 导入发行版的kernel和initrd镜像用于远程网络启动 |
| /var/www/cobbler/repo_mirror/ | yum仓库存储目录 |
cobbler日志文件
| 日志文件路径 | 说明 |
|---|---|
| /var/log/cobbler/installing | 客户端安装日志 |
| /var/log/cobbler/cobbler.log | cobbler日志 |
cobbler命令详解
cobbler check //核对当前设置是否有问题
cobbler list //列出所有的cobbler元素
cobbler report //列出元素的详细信息
cobbler sync //同步配置到数据目录,更改配置最好都要执行下
cobbler reposync //同步yum仓库
cobbler distro //查看导入的发行版系统信息
cobbler system //查看添加的系统信息
cobbler profile //查看配置信息
2. cobbler服务端安装
#开始前确保防火墙色selinux永久是disable状态
#确保配置好yum源，包括epel源
#安装cobbler以及相关软件
[root@localhost ~]# yum -y install httpd dhcp tftp python-ctypes cobbler xinetd cobbler-web pykickstart net-tools
#启动服务并开机自启
[root@localhost ~]# systemctl enable --now httpd
Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.
[root@localhost ~]# systemctl enable --now cobblerd
Created symlink from /etc/systemd/system/multi-user.target.wants/cobblerd.service to /usr/lib/systemd/system/cobblerd.service.
[root@localhost ~]# systemctl enable --now rsyncd
Created symlink from /etc/systemd/system/multi-user.target.wants/rsyncd.service to /usr/lib/systemd/system/rsyncd.service.
#cobbler服务器的ip，应设置为本机的ip，不能设为0.0.0.0，它不是监听地址
[root@localhost ~]# sed -i 's/^server: 127.0.0.1/server: 192.168.32.125/' /etc/cobbler/settings
#next_server选项用于DHCP / PXE，作为下载网络启动文件的TFTP服务器的IP。通常与服务器设置相同的IP。
[root@localhost ~]# sed -i 's/^next_server: 127.0.0.1/next_server: 192.168.32.125/' /etc/cobbler/settings
#开启TFTP
[root@localhost ~]# sed -i '/disable/s/yes/no/g' /etc/xinetd.d/tftp
#下载缺失文件
[root@localhost ~]# cobbler get-loaders
task started: 2020-07-29_111939_get_loaders
task started (id=Download Bootloader Content, time=Wed Jul 29 11:19:39 2020)
downloading https://cobbler.github.io/loaders/README to /var/lib/cobbler/loaders/README
downloading https://cobbler.github.io/loaders/COPYING.elilo to /var/lib/cobbler/loaders/COPYING.elilo
downloading https://cobbler.github.io/loaders/COPYING.yaboot to /var/lib/cobbler/loaders/COPYING.yaboot
downloading https://cobbler.github.io/loaders/COPYING.syslinux to /var/lib/cobbler/loaders/COPYING.syslinux
downloading https://cobbler.github.io/loaders/elilo-3.8-ia64.efi to /var/lib/cobbler/loaders/elilo-ia64.efi
downloading https://cobbler.github.io/loaders/yaboot-1.3.17 to /var/lib/cobbler/loaders/yaboot
downloading https://cobbler.github.io/loaders/pxelinux.0-3.86 to /var/lib/cobbler/loaders/pxelinux.0
downloading https://cobbler.github.io/loaders/menu.c32-3.86 to /var/lib/cobbler/loaders/menu.c32
downloading https://cobbler.github.io/loaders/grub-0.97-x86.efi to /var/lib/cobbler/loaders/grub-x86.efi
downloading https://cobbler.github.io/loaders/grub-0.97-x86_64.efi to /var/lib/cobbler/loaders/grub-x86_64.efi
*** TASK COMPLETE ***
#生成加密的密码
[root@localhost ~]# openssl passwd -1 '123456'
$1$uWE7AB.4$PkdHLLjN2ifJ4551EtPaj1
#将新生成的加密密码加入到配置文件
[root@localhost ~]# vim /etc/cobbler/settings
......
default_password_crypted: "$1$uWE7AB.4$PkdHLLjN2ifJ4551EtPaj1"
......
#重启cobbler
[root@localhost ~]# systemctl restart cobblerd
[root@localhost ~]# ss -tanl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 5 127.0.0.1:25151 *:*
LISTEN 0 5 *:873 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 100 [::1]:25 [::]:*
LISTEN 0 128 [::]:443 [::]:*
LISTEN 0 5 [::]:873 [::]:*
LISTEN 0 128 [::]:80 [::]:*
LISTEN 0 128 [::]:22 [::]:*
#通过cobbler check 核对当前设置是否有问题
[root@localhost ~]# cobbler check
The following are potential configuration items that you may want to fix:
1 : debmirror package is not installed, it will be required to manage debian deployments and repositories
2 : fencing tools were not found, and are required to use the (optional) power management features. install cman or fence-agents to use them
Restart cobblerd and then run 'cobbler sync' to apply changes.
//以上两个是关于debian系统的缺包错误，请忽略
#配置cobbler dhcp
#修改cobbler配置文件，让cobbler控制dhcp
[root@localhost ~]# sed -i '/^manage_dhcp/s/0/1/g' /etc/cobbler/settings
[root@localhost ~]# sed -n '/^manage_dhcp/p' /etc/cobbler/settings
manage_dhcp: 1
#配置dhcp
[root@localhost ~]# vim /etc/cobbler/dhcp.template
......
subnet 192.168.32.0 netmask 255.255.255.0 {
option routers 192.168.32.125;
option domain-name-servers 192.168.32.2; //此处为系统安装好后指定的dns地址
option subnet-mask 255.255.255.0;
range dynamic-bootp 192.168.32.100 192.168.32.254;
default-lease-time 21600;
max-lease-time 43200;
next-server $next_server;
......
#重启服务并同步配置，改完dhcp必须要sync同步配置
[root@localhost ~]# systemctl restart cobblerd
[root@localhost ~]# cobbler sync
task started: 2020-07-29_113407_sync
task started (id=Sync, time=Wed Jul 29 11:34:07 2020)
running pre-sync triggers
cleaning trees
removing: /var/lib/tftpboot/grub/images
copying bootloaders
trying hardlink /var/lib/cobbler/loaders/pxelinux.0 -> /var/lib/tftpboot/pxelinux.0
trying hardlink /var/lib/cobbler/loaders/menu.c32 -> /var/lib/tftpboot/menu.c32
trying hardlink /var/lib/cobbler/loaders/yaboot -> /var/lib/tftpboot/yaboot
trying hardlink /usr/share/syslinux/memdisk -> /var/lib/tftpboot/memdisk
trying hardlink /var/lib/cobbler/loaders/grub-x86.efi -> /var/lib/tftpboot/grub/grub-x86.efi
trying hardlink /var/lib/cobbler/loaders/grub-x86_64.efi -> /var/lib/tftpboot/grub/grub-x86_64.efi
copying distros to tftpboot
copying images
generating PXE configuration files
generating PXE menu structure
rendering DHCP files
generating /etc/dhcp/dhcpd.conf
rendering TFTPD files
generating /etc/xinetd.d/tftp
cleaning link caches
running post-sync triggers
running python triggers from /var/lib/cobbler/triggers/sync/post/*
running python trigger cobbler.modules.sync_post_restart_services
running: dhcpd -t -q
received on stdout:
received on stderr:
running: service dhcpd restart
received on stdout:
received on stderr: Redirecting to /bin/systemctl restart dhcpd.service
running shell triggers from /var/lib/cobbler/triggers/sync/post/*
running python triggers from /var/lib/cobbler/triggers/change/*
running python trigger cobbler.modules.manage_genders
running python trigger cobbler.modules.scm_track
running shell triggers from /var/lib/cobbler/triggers/change/*
*** TASK COMPLETE ***
#检查dhcp是否正常
[root@localhost ~]# netstat -anulp|grep dhcp
udp 0 0 0.0.0.0:67 0.0.0.0:* 1653/dhcpd
#导入centos7镜像
[root@localhost ~]# mount /dev/sr0 /mnt/
mount: /dev/sr0 is write-protected, mounting read-only
[root@localhost ~]# cobbler import --path=/mnt --name=CentOS-7 --arch=x86_64
task started: 2020-07-29_114226_import
task started (id=Media import, time=Wed Jul 29 11:42:26 2020)
Found a candidate signature: breed=redhat, version=rhel6
Found a candidate signature: breed=redhat, version=rhel7
Found a matching signature: breed=redhat, version=rhel7
Adding distros from path /var/www/cobbler/ks_mirror/CentOS-7-x86_64:
creating new distro: CentOS-7-x86_64
trying symlink: /var/www/cobbler/ks_mirror/CentOS-7-x86_64 -> /var/www/cobbler/links/CentOS-7-x86_64
creating new profile: CentOS-7-x86_64
associating repos
checking for rsync repo(s)
checking for rhn repo(s)
checking for yum repo(s)
starting descent into /var/www/cobbler/ks_mirror/CentOS-7-x86_64 for CentOS-7-x86_64
processing repo at : /var/www/cobbler/ks_mirror/CentOS-7-x86_64
need to process repo/comps: /var/www/cobbler/ks_mirror/CentOS-7-x86_64
looking for /var/www/cobbler/ks_mirror/CentOS-7-x86_64/repodata/*comps*.xml
Keeping repodata as-is :/var/www/cobbler/ks_mirror/CentOS-7-x86_64/repodata
*** TASK COMPLETE ***
#说明：
--path //镜像路径
--name //为安装源定义一个名字
--arch //指定安装源平台
#安装源的唯一标示就是根据name参数来定义，本例导入成功后，安装源的唯一标示就是：CentOS-7-x86_64，如果重复，系统会提示导入失败
[root@localhost ~]# cobbler list
distros:
CentOS-7-x86_64
profiles:
CentOS-7-x86_64
systems:
repos:
images:
mgmtclasses:
packages:
files:
#创建kickstarts自动安装脚本
[root@localhost ~]# cat > /var/lib/cobbler/kickstarts/CentOS-7-x86_64.ks <<'EOF'
auth --enableshadow --passalgo=sha512
bootloader --location=mbr
clearpart --all --initlabel
part /boot --asprimary --fstype="ext4" --size=500
part swap --fstype="swap" --size=4096
part / --fstype="ext4" --grow --size=15000
text
firewall --disabled
firstboot --disable
keyboard us
lang en_US
url --url=http://192.168.32.125/cobbler/ks_mirror/CentOS-7-x86_64
$yum_repo_stanza
reboot
rootpw --iscrypted $1$uWE7AB.4$PkdHLLjN2ifJ4551EtPaj1
selinux --disabled
skipx
timezone Asia/Shanghai --isUtc --nontp
install
zerombr
%packages
@^minimal
@core
kexec-tools
%end
%addon com_redhat_kdump --enable --reserve-mb='auto'
%end
%anaconda
pwpolicy root --minlen=6 --minquality=1 --notstrict --nochanges --notempty
pwpolicy user --minlen=6 --minquality=1 --notstrict --nochanges --emptyok
pwpolicy luks --minlen=6 --minquality=1 --notstrict --nochanges --notempty
%end
EOF
#检查ks文件语法是否有误
[root@localhost ~]# cobbler validateks
task started: 2020-07-29_115352_validateks
task started (id=Kickstart Validation, time=Wed Jul 29 11:53:52 2020)
----------------------------
osversion: rhel7
checking url: http://192.168.32.125/cblr/svc/op/ks/profile/CentOS-7-x86_64
running: /usr/bin/ksvalidator -v "rhel7" "http://192.168.32.125/cblr/svc/op/ks/profile/CentOS-7-x86_64"
received on stdout:
received on stderr:
*** all kickstarts seem to be ok ***
*** TASK COMPLETE ***
#查看当前cobbler有哪些配置文件
[root@localhost ~]# cobbler profile list
CentOS-7-x86_64
#修改profile，将我们新建的ks文件设为默认的kickstarts安装文件
[root@localhost ~]# cobbler profile edit --name CentOS-7-x86_64 --kickstart=/var/lib/cobbler/kickstarts/CentOS-7-x86_64.ks
#配置网卡名称为传统网卡名称eth0
[root@localhost ~]# cobbler profile edit --name CentOS-7-x86_64 --kopts='net.ifnames=0 biosdevname=0'
#检查当前系统cobbler配置文件信息
[root@localhost ~]# cobbler profile report
Name : CentOS-7-x86_64
TFTP Boot Files : {}
Comment :
DHCP Tag : default
Distribution : CentOS-7-x86_64 //仓库名字
Enable gPXE? : 0
Enable PXE Menu? : 1
Fetchable Files : {}
Kernel Options : {'biosdevname': '0', 'net.ifnames': '0'}
Kernel Options (Post Install) : {}
Kickstart : /var/lib/cobbler/kickstarts/CentOS-7-x86_64.ks
Kickstart Metadata : {}
Management Classes : []
Management Parameters : <<inherit>>
Name Servers : []
Name Servers Search Path : []
Owners : ['admin']
Parent Profile :
Internal proxy :
Red Hat Management Key : <<inherit>>
Red Hat Management Server : <<inherit>>
Repos : []
Server Override : <<inherit>>
Template Files : {}
Virt Auto Boot : 1
Virt Bridge : xenbr0
Virt CPUs : 1
Virt Disk Driver Type : raw
Virt File Size(GB) : 5
Virt Path :
Virt RAM (MB) : 512
Virt Type : kvm
#同步cobbler
[root@localhost ~]# cobbler sync
task started: 2020-07-29_120114_sync
task started (id=Sync, time=Wed Jul 29 12:01:14 2020)
running pre-sync triggers
cleaning trees
removing: /var/www/cobbler/images/CentOS-7-x86_64
removing: /var/lib/tftpboot/pxelinux.cfg/default
removing: /var/lib/tftpboot/grub/images
removing: /var/lib/tftpboot/grub/grub-x86.efi
removing: /var/lib/tftpboot/grub/grub-x86_64.efi
removing: /var/lib/tftpboot/grub/efidefault
removing: /var/lib/tftpboot/images/CentOS-7-x86_64
removing: /var/lib/tftpboot/s390x/profile_list
copying bootloaders
trying hardlink /var/lib/cobbler/loaders/grub-x86.efi -> /var/lib/tftpboot/grub/grub-x86.efi
trying hardlink /var/lib/cobbler/loaders/grub-x86_64.efi -> /var/lib/tftpboot/grub/grub-x86_64.efi
copying distros to tftpboot
copying files for distro: CentOS-7-x86_64
trying hardlink /var/www/cobbler/ks_mirror/CentOS-7-x86_64/images/pxeboot/vmlinuz -> /var/lib/tftpboot/images/CentOS-7-x86_64/vmlinuz
trying hardlink /var/www/cobbler/ks_mirror/CentOS-7-x86_64/images/pxeboot/initrd.img -> /var/lib/tftpboot/images/CentOS-7-x86_64/initrd.img
copying images
generating PXE configuration files
generating PXE menu structure
copying files for distro: CentOS-7-x86_64
trying hardlink /var/www/cobbler/ks_mirror/CentOS-7-x86_64/images/pxeboot/vmlinuz -> /var/www/cobbler/images/CentOS-7-x86_64/vmlinuz
trying hardlink /var/www/cobbler/ks_mirror/CentOS-7-x86_64/images/pxeboot/initrd.img -> /var/www/cobbler/images/CentOS-7-x86_64/initrd.img
Writing template files for CentOS-7-x86_64
rendering DHCP files
generating /etc/dhcp/dhcpd.conf
rendering TFTPD files
generating /etc/xinetd.d/tftp
processing boot_files for distro: CentOS-7-x86_64
cleaning link caches
running post-sync triggers
running python triggers from /var/lib/cobbler/triggers/sync/post/*
running python trigger cobbler.modules.sync_post_restart_services
running: dhcpd -t -q
received on stdout:
received on stderr:
running: service dhcpd restart
received on stdout:
received on stderr: Redirecting to /bin/systemctl restart dhcpd.service
running shell triggers from /var/lib/cobbler/triggers/sync/post/*
running python triggers from /var/lib/cobbler/triggers/change/*
running python trigger cobbler.modules.manage_genders
running python trigger cobbler.modules.scm_track
running shell triggers from /var/lib/cobbler/triggers/change/*
*** TASK COMPLETE ***
#重启所有服务
[root@localhost ~]# systemctl restart xinetd
[root@localhost ~]# systemctl restart cobblerd
[root@localhost ~]# systemctl restart httpd
[root@localhost ~]# ss -tanl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 5 127.0.0.1:25151 *:*
LISTEN 0 5 *:873 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 100 [::1]:25 [::]:*
LISTEN 0 128 [::]:443 [::]:*
LISTEN 0 5 [::]:873 [::]:*
LISTEN 0 128 [::]:80 [::]:*
LISTEN 0 128 [::]:22 [::]:*
3. 客户端安装
给客户端插上电源，连接上网线，开机。
下键选择系统回车开始装机
正常进入系统
4. 定制安装
定制安装步骤：
- 统计服务器mac地址
- 配置cobbler
- 安装
统计mac地址此处就不赘述了，直接最重要的配置
在 cobbler 的web界面上配置：
把新建虚拟机的MAC和这里的MAC一样
同步配置并重启相关服务：
[root@localhost ~]# cobbler sync
task started: 2020-07-29_132141_sync
task started (id=Sync, time=Wed Jul 29 13:21:41 2020)
running pre-sync triggers
cleaning trees
removing: /var/www/cobbler/images/CentOS-7-x86_64
removing: /var/lib/tftpboot/pxelinux.cfg/default
removing: /var/lib/tftpboot/pxelinux.cfg/01-00-16-3e-44-25-eb
removing: /var/lib/tftpboot/grub/images
removing: /var/lib/tftpboot/grub/grub-x86.efi
removing: /var/lib/tftpboot/grub/grub-x86_64.efi
removing: /var/lib/tftpboot/grub/efidefault
removing: /var/lib/tftpboot/grub/01-00-16-3E-44-25-EB
removing: /var/lib/tftpboot/images/CentOS-7-x86_64
removing: /var/lib/tftpboot/s390x/profile_list
copying bootloaders
trying hardlink /var/lib/cobbler/loaders/grub-x86.efi -> /var/lib/tftpboot/grub/grub-x86.efi
trying hardlink /var/lib/cobbler/loaders/grub-x86_64.efi -> /var/lib/tftpboot/grub/grub-x86_64.efi
copying distros to tftpboot
copying files for distro: CentOS-7-x86_64
trying hardlink /var/www/cobbler/ks_mirror/CentOS-7-x86_64/images/pxeboot/vmlinuz -> /var/lib/tftpboot/images/CentOS-7-x86_64/vmlinuz
trying hardlink /var/www/cobbler/ks_mirror/CentOS-7-x86_64/images/pxeboot/initrd.img -> /var/lib/tftpboot/images/CentOS-7-x86_64/initrd.img
copying images
generating PXE configuration files
generating: /var/lib/tftpboot/pxelinux.cfg/01-00-16-3e-44-25-eb
generating: /var/lib/tftpboot/grub/01-00-16-3E-44-25-EB
generating PXE menu structure
copying files for distro: CentOS-7-x86_64
trying hardlink /var/www/cobbler/ks_mirror/CentOS-7-x86_64/images/pxeboot/vmlinuz -> /var/www/cobbler/images/CentOS-7-x86_64/vmlinuz
trying hardlink /var/www/cobbler/ks_mirror/CentOS-7-x86_64/images/pxeboot/initrd.img -> /var/www/cobbler/images/CentOS-7-x86_64/initrd.img
Writing template files for CentOS-7-x86_64
rendering DHCP files
generating /etc/dhcp/dhcpd.conf
rendering TFTPD files
generating /etc/xinetd.d/tftp
processing boot_files for distro: CentOS-7-x86_64
cleaning link caches
running post-sync triggers
running python triggers from /var/lib/cobbler/triggers/sync/post/*
running python trigger cobbler.modules.sync_post_restart_services
running: dhcpd -t -q
received on stdout:
received on stderr:
running: service dhcpd restart
received on stdout:
received on stderr: Redirecting to /bin/systemctl restart dhcpd.service
running shell triggers from /var/lib/cobbler/triggers/sync/post/*
running python triggers from /var/lib/cobbler/triggers/change/*
running python trigger cobbler.modules.manage_genders
running python trigger cobbler.modules.scm_track
running shell triggers from /var/lib/cobbler/triggers/change/*
*** TASK COMPLETE ***
[root@localhost ~]# systemctl restart httpd
[root@localhost ~]# systemctl restart cobblerd
[root@localhost ~]# systemctl restart xinetd
最后开机自动会安装系统
