debian下安装配置lxc
debian下安装配置lxc
操作环境 debian7
内核版本
root@debian-lege-pro:~# uname -a
Linux debian-lege-pro 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u2 x86_64 GNU/Linux
开始安装lxc
root@debian-lege-pro:~# apt-get install lxc bridge-utils debootstrap
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
rsync
Suggested packages:
lxctl
The following NEW packages will be installed:
bridge-utils debootstrap lxc rsync
0 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 635 kB of archives.
After this operation, 1,760 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://mirrors.163.com/debian/ wheezy/main lxc amd64 0.8.0~rc1-8+deb7u2 [170 kB]
Get:2 http://mirrors.163.com/debian/ wheezy/main bridge-utils amd64 1.5-6 [36.1 kB]
......
编辑网卡，也可以容器安装好之后编辑效果都是一样的
root@debian-lege-pro:~# vim /etc/network/interfaces
这里我添加的是这样的：
auto br0
iface br0 inet static
bridge_port eth0 #根据你网卡信息
bridge_fd 0
address 10.0.0.10
netmask 255.255.255.0
gateway 10.0.0.1
编辑/etcfstab
root@debian-lege-pro:~# vim /etc/fstab
添加一行
cgroup /sys/fs/cgroup cgroup defaults0 0
root@debian-lege-pro:~# mount -a
使其立即生效
检查是否安装成功
root@debian-lege-pro:~# lxc-checkconfig
Kernel config /proc/config.gz not found, looking in other places...
Found kernel config file /boot/config-3.2.0-4-amd64
--- Namespaces ---
Namespaces: enabled
Utsname namespace: enabled
Ipc namespace: enabled
Pid namespace: enabled
User namespace: enabled
Network namespace: enabled
Multiple /dev/pts instances: enabled
--- Control groups ---
Cgroup: enabled
Cgroup clone_children flag: enabled
Cgroup device: enabled
Cgroup sched: enabled
Cgroup cpu account: enabled
Cgroup memory controller: enabled
Cgroup cpuset: enabled
--- Misc ---
Veth pair device: enabled
Macvlan: enabled
Vlan: enabled
File capabilities: enabled
Note : Before booting a new kernel, you can check its configuration
usage : CONFIG=/path/to/config /usr/bin/lxc-checkconfig
全部enabled即成功
如果之前不修改/etc/fstab这一步会报如下错误：
--- Control groups ---
Cgroup: enabled
CGROUP NAMESPACE: CONFIG_CGROUP_NSMISSING
Cgroup device: enabled
Cgroup sched: enabled
Cgroup cpu account: enabled
Cgroup memory controller: enabled
Cgroup cpuset: enabled
有一个CGROUP NAMESPACE没有enabled
查看包含容器类型：
root@debian-lege-pro:/usr/share/lxc# cd templates/
root@debian-lege-pro:/usr/share/lxc/templates# ls
lxc-altlinux lxc-debconflxc-debian lxc-opensuse lxc-progress.d lxc-ubuntu-cloud
lxc-archlinux lxc-debconf.d lxc-fedora lxc-progress lxc-sshd
创建容器
root@debian-lege-pro:/usr/share/lxc/templates# lxc-create -n mylxc -t debian
Note: Usually the template option is called with a configuration
file option too, mostly to configure the network.
For more information look at lxc.conf (5)
debootstrap is /usr/sbin/debootstrap
Checking cache download in /var/cache/lxc/debian/rootfs-wheezy-amd64 ...
Downloading debian minimal ...
I: Retrieving Release
I: Retrieving Release.gpg
I: Checking Release signature
I: Valid Release signature (key id ED6D65271AACF0FF15D123036FB2A1C265FFB764)
I: Retrieving Packages
I: Validating Packages
I: Resolving dependencies of required packages...
I: Resolving dependencies of base packages...
I: Found additional required dependencies: insserv libbz2-1.0 libdb5.1 libsemanage-common libsemanage1 libslang2 libustr-1.0-1
......
Download complete.
Copying rootfs to /var/lib/lxc/mylxc/rootfs...Generating locales (this might take a while)...
en_US.UTF-8... done
Generation complete.
update-rc.d: using dependency based boot sequencing
update-rc.d: using dependency based boot sequencing
update-rc.d: using dependency based boot sequencing
update-rc.d: using dependency based boot sequencing
Current default time zone: 'America/New_York'
Local time is now: Tue Jan 6 02:03:28 EST 2015.
Universal Time is now: Tue Jan 6 07:03:28 UTC 2015.
Root password is 'root', please change !
'debian' template installed
'mylxc' created
容器创建完成，用户名密码都有给出来，如上：
容器配制文件在如下目录，可以修改其参数的，也可以以后修改
root@debian-lege-pro:/var/lib/lxc/mylxc# ls
config rootfs
启动容器：
root@debian-lege-pro:/var/lib/lxc/mylxc# lxc-start -n mylxc
INIT: version 2.88 booting
[info] Using makefile-style concurrent boot in runlevel S.
[ ok ] Cleaning up temporary files... /tmp /run /run/lock /run/shm.
[warn] Mount point '/dev/console' does not exist. Skipping mount. ... (warning).
[warn] Mount point '/dev/tty1' does not exist. Skipping mount. ... (warning).
[warn] Mount point '/dev/tty2' does not exist. Skipping mount. ... (warning).
[warn] Mount point '/dev/tty3' does not exist. Skipping mount. ... (warning).
[warn] Mount point '/dev/tty4' does not exist. Skipping mount. ... (warning).
[warn] Mount point '/dev/ptmx' does not exist. Skipping mount. ... (warning).
[ ok ] Activating lvm and md swap...done.
[....] Checking file systems...fsck from util-linux 2.20.1
done.
......
[ ok ] Cleaning up temporary files....
INIT: Entering runlevel: 3
[info] Using makefile-style concurrent boot in runlevel 3.
[ ok ] Starting OpenBSD Secure Shell server: sshd.
启动完成
登陆容器：
Debian GNU/Linux 7 mylxc console
mylxc login:
这里输入给定的默认用户名密码，即：root root
mylxc login: root
Password:
Linux mylxc 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u2 x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
root@mylxc:~#
登陆成功，可以查看里面信息了，可以修改root密码，也可以安装想要的测试程序之类的
查看虚拟机状态：
root@debian-lege-pro:/var/lib/lxc/mylxc# lxc-info -n mylxc
state: STOPPED
pid: -1
