debian下安装配置lxc
操作环境 debian7
内核版本
root@debian-lege-pro:~# uname -aLinux 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 debootstrapReading package lists... DoneBuilding dependency tree Reading state information... DoneThe following extra packages will be installed: rsyncSuggested packages: lxctlThe following NEW packages will be installed: bridge-utils debootstrap lxc rsync0 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]? yGet: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 br0iface 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 0root@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: enabledUtsname namespace: enabledIpc namespace: enabledPid namespace: enabledUser namespace: enabledNetwork namespace: enabledMultiple /dev/pts instances: enabled--- Control groups ---Cgroup: enabledCgroup clone_children flag: enabledCgroup device: enabledCgroup sched: enabledCgroup cpu account: enabledCgroup memory controller: enabledCgroup cpuset: enabled--- Misc ---Veth pair device: enabledMacvlan: enabledVlan: enabledFile capabilities: enabledNote : Before booting a new kernel, you can check its configurationusage : 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: enabledCGROUP NAMESPACE: CONFIG_CGROUP_NSMISSINGCgroup device: enabledCgroup sched: enabledCgroup cpu account: enabledCgroup memory controller: enabledCgroup 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# lslxc-altlinux lxc-debconflxc-debian lxc-opensuse lxc-progress.d lxc-ubuntu-cloudlxc-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 debianNote: Usually the template option is called with a configurationfile option too, mostly to configure the network.For more information look at lxc.conf (5)debootstrap is /usr/sbin/debootstrapChecking cache download in /var/cache/lxc/debian/rootfs-wheezy-amd64 ... Downloading debian minimal ...I: Retrieving ReleaseI: Retrieving Release.gpgI: Checking Release signatureI: Valid Release signature (key id ED6D65271AACF0FF15D123036FB2A1C265FFB764)I: Retrieving PackagesI: Validating PackagesI: 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... doneGeneration complete.update-rc.d: using dependency based boot sequencingupdate-rc.d: using dependency based boot sequencingupdate-rc.d: using dependency based boot sequencingupdate-rc.d: using dependency based boot sequencingCurrent 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# lsconfig rootfs
启动容器：
root@debian-lege-pro:/var/lib/lxc/mylxc# lxc-start -n mylxcINIT: 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 2.20.1done.......[ 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 consolemylxc login:
这里输入给定的默认用户名密码，即：root root
mylxc login: rootPassword: Linux mylxc 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u2 x86_64The programs included with the Debian GNU/Linux system are free software;the exact distribution terms for each program are described in theindividual files in /usr/share/doc/*/copyright.Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extentpermitted 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 mylxcstate: STOPPEDpid: -1