cobbler for docker

cobbler 简介

Cobbler是一个免费开源系统安装部署软件，用于自动化网络安装操作系统。在生产环境中，经常批量部署几十甚至上百台服务器时，实现自动化安装操作系统尤为重要，按照传统的光盘引导安装工作量是不可预估的；此前我们通过pxe+kickstart简单实现了自动化安装，但只能实现单一版本安装，当需要部署不同版本或不同引导模式（BIOS、EFI）时，此种方式就不够灵活。而Cobbler正是为了解决此问题而设计的.

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工作原理

# Server端：第一步，启动Cobbler服务第二步，进行Cobbler错误检查，执行cobbler check命令第三步，进行配置同步，执行cobbler sync命令第四步，复制相关启动文件文件到TFTP目录中第五步，启动DHCP服务，提供地址分配第六步，DHCP服务分配IP地址第七步，TFTP传输启动文件第八步，Server端接收安装信息第九步，Server端发送ISO镜像与Kickstart文件
# Client端：第一步，客户端以PXE模式启动第二步，客户端获取IP地址第三步，通过TFTP服务器获取启动文件第四步，进入Cobbler安装选择界面第五步，客户端确定加载信息第六步，根据配置信息准备安装系统第七步，加载Kickstart文件第八步，传输系统安装的其它文件第九步，进行安装系统

docker 部署 cobbler 服务 简单快捷

# 下载镜像
docker pull babyfenei/docker-cobbler:latest
# 安装 docker-compose（docker version 大于 19.0.0 则不用安装这个，因为docker集成了）
apt-get install python-pip #yum install python-pip
pip install --upgrade pip
pip install docker-compose
# 准备docker-compose yml文件
docker-compose.yml
cobbler:image: babyfenei/docker-cobbler:latestcontainer_name: docker-cobblerhsotname: docker-cobblerrestart: alwaysenvironment:- SET_CONTAINER_TIMEZONE=true- CONTAINER_TIMEZONE=Asia/Shanghaivolumes:- /mnt:/mnt:ro- /etc/localtime:/etc/localtime:roenv_file: cobbler.envnet: "host"
# 以上docker-compose.yml里的变量文件 cobbler.env
cat >cobbler.env << EOF
#服务器IP地址
SERVER_IP=192.168.85.115
#装机后服务器的root密码
ROOT_PASSWORD=kc@123456
#指定批量装机需要获取的IP地址段
DHCP_RANGE=192.168.85.230 192.168.85.235
#指定DHCP的网段
DHCP_SUBNET=192.168.85.0
#指定DHCP的网关
DHCP_ROUTER=192.168.85.1
#指定DHCP的DNS地址
DHCP_DNS=8.8.8.8
EOF
# 启动容器
docker-compose -f docker-compose.yml up -d

查看日志确认启动是否正确

# 报错
*** TASK COMPLETE ***
+ cobbler get-loaders
task started: 2020-09-21_221825_get_loaders
task started (id=Download Bootloader Content, time=Mon Sep 21 22:18:25 2020)
path /var/lib/cobbler/loaders/README already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/COPYING.elilo already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/COPYING.yaboot already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/COPYING.syslinux already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/elilo-ia64.efi already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/yaboot already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/pxelinux.0 already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/menu.c32 already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/grub-x86.efi already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/grub-x86_64.efi already exists, not overwriting existing content, use --force if you wish to update# 重启容器
*** TASK COMPLETE ***
+ pkill cobblerd
+ pkill httpd
+ rm -rf /run/httpd/authdigest_shm.22 /run/httpd/httpd.pid
+ exec supervisord -n -c /etc/supervisord.conf
2020-09-21 22:18:27,608 CRIT Supervisor running as root (no user in config file)
2020-09-21 22:18:27,608 WARN Included extra file "/etc/supervisord.d/conf.ini" during parsing
2020-09-21 22:18:27,628 INFO RPC interface 'supervisor' initialized
2020-09-21 22:18:27,628 CRIT Server 'unix_http_server' running without any HTTP authentication checking
2020-09-21 22:18:27,628 INFO supervisord started with pid 1
2020-09-21 22:18:28,632 INFO spawned: 'httpd' with pid 76
2020-09-21 22:18:28,639 INFO spawned: 'cobblerd' with pid 77
2020-09-21 22:18:28,655 INFO spawned: 'tftpd' with pid 78
2020-09-21 22:18:28,663 INFO spawned: 'dhcpd' with pid 79
2020-09-21 22:18:28,678 INFO reaped unknown pid 22
2020-09-21 22:18:29,681 INFO success: httpd entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2020-09-21 22:18:29,681 INFO success: cobblerd entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2020-09-21 22:18:29,682 INFO success: tftpd entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2020-09-21 22:18:29,682 INFO success: dhcpd entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)

https://gitee.com/luokeli0755/docker-cobbler.git