\u5f53\u6211\u5728\u8c03\u67e5Docker\u65f6\uff0c\u5bf9\u5176\u5e95\u5c42\u7684LXC\u548ccgroup\u4ea7\u751f\u4e86\u5174\u8da3\uff0c\u56e0\u6b64\u8fdb\u884c\u4e86\u4e00\u4e9b\u7814\u7a76\u3002\u6211\u53ea\u662f\u7a0d\u5fae\u5c1d\u8bd5\u4e86\u4e00\u4e0b\u3002<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
ubuntu@ubuntu:~$<\/span> sudo <\/span>apt-get install <\/span>lxc\r\n<\/code><\/pre>\n\u4ee5\u4e0b\u662f\u5df2\u7ecf\u51c6\u5907\u597d\u7684\u6a21\u677f\u3002<\/p>\n
ubuntu@ubuntu:~$<\/span> ls<\/span> -l<\/span> \/usr\/lib\/lxc\/templates\/\r\ntotal 88\r\n-rwxr-xr-x 1 root root 8227 Oct 29 2013 lxc-busybox\r\n-rwxr-xr-x 1 root root 9806 Oct 29 2013 lxc-debian\r\n-rwxr-xr-x 1 root root 10520 Oct 29 2013 lxc-fedora\r\n-rwxr-xr-x 1 root root 9094 Oct 29 2013 lxc-opensuse\r\n-rwxr-xr-x 1 root root 5115 Oct 29 2013 lxc-sshd\r\n-rwxr-xr-x 1 root root 19736 Oct 29 2013 lxc-ubuntu\r\n-rwxr-xr-x 1 root root 10590 Oct 29 2013 lxc-ubuntu-cloud\r\n<\/span><\/code><\/pre>\n\u5c1d\u8bd5\u5b89\u88c5Debian\u64cd\u4f5c\u7cfb\u7edf\u3002
\n\u8bf7\u6ce8\u610f\uff0c\u8fd9\u53ef\u80fd\u9700\u8981\u5341\u5206\u4ee5\u4e0a\u7684\u65f6\u95f4\u3002<\/p>\n
ubuntu@ubuntu:~$<\/span> sudo <\/span>lxc-create -t<\/span> debian -n<\/span> debian0\r\nNo config file specified, using the default config\r\ndebootstrap is \/usr\/sbin\/debootstrap\r\nChecking cache download in \/var\/cache\/lxc\/debian\/rootfs-squeeze-i386 ... \r\nDownloading debian minimal ...\r\nI: Retrieving Release\r\n<\/span>W: Cannot check Release signature;<\/span> keyring file not available \/usr\/share\/keyrings\r\n\/debian-archive-keyring.gpg\r\nI: Retrieving Packages\r\nI: Validating Packages\r\nI: Resolving dependencies of required packages...\r\nI: Resolving dependencies of base packages...\r\n<\/span>...\r\n<\/span><\/code><\/pre>\n\u5f53\u663e\u793a\u5217\u8868\u65f6\uff0c\u5373\u8868\u793a\u5b58\u5728\u3002<\/p>\n
ubuntu@ubuntu:~$<\/span> sudo <\/span>lxc list \r\nRUNNING\r\n\r\nFROZEN\r\n\r\nSTOPPED\r\n debian0\r\n<\/span><\/code><\/pre>\n\u5f00\u59cb\u5c1d\u8bd5\u3002<\/p>\n
ubuntu@ubuntu:~$<\/span> sudo <\/span>lxc start debian0\r\nINIT: version 2.88 booting\r\n<\/span>...\r\n<\/span>Starting OpenBSD Secure Shell server: sshd.\r\n\r\nDebian GNU\/Linux 6.0 debian0 console\r\n\r\ndebian0 login: root\r\nPassword: \r\n<\/span>Linux debian0 3.2.0-24-generic-pae #<\/span>39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686\r\n\r\nThe programs included with the Debian GNU\/Linux system are free software;<\/span>\r\nthe exact distribution terms for each program are described in the\r\nindividual files in \/usr\/share\/doc\/*\/copyright.\r\n\r\nDebian GNU\/Linux comes with ABSOLUTELY NO WARRANTY, to the extent\r\npermitted by applicable law.\r\n<\/span>root@debian0:~#<\/span> \r\n<\/code><\/pre>\n\u5c3d\u7ba1\u5206\u5e03\u4e0d\u540c\uff0c\u4f46\u53ef\u4ee5\u770b\u51fa\u5b83\u4eec\u5728\u76f8\u540c\u7684\u5185\u6838\u4e0a\u8fd0\u884c\u3002<\/p>\n
ubuntu@ubuntu:~$<\/span> uname<\/span> -a<\/span>\r\nLinux ubuntu 3.2.0-24-generic-pae #<\/span>39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 i686 i386 GNU\/Linux\r\n<\/code><\/pre>\nroot@debian0:~#<\/span> uname<\/span> -a<\/span>\r\nLinux debian0 3.2.0-24-generic-pae #<\/span>39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 GNU\/Linux\r\n<\/code><\/pre>\n\u987a\u4fbf\u8bf4\u4e00\u53e5\uff0c\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u4e5f\u53ef\u4ee5\u5b89\u88c5Fedora\uff0c\u4f46\u4e0eDebian\u76f8\u6bd4\uff0c\u6240\u9700\u65f6\u95f4\u8f83\u957f\u3002\u53ef\u80fd\u9700\u8981\u5927\u7ea61\u5c0f\u65f6\u7684\u65f6\u95f4\u3002\u7531\u4e8e\u57fa\u7840\u7cfb\u7edf\u5dee\u5f02\u8f83\u5927\uff0c\u4f3c\u4e4e\u9700\u8981\u5355\u72ec\u5b89\u88c5\u5404\u79cdrpm\u8f6f\u4ef6\u5305\u3002<\/p>\n
ubuntu@ubuntu:~$<\/span> sudo <\/span>lxc-create -t<\/span> fedora -n<\/span> fedora0\r\n\r\nNo config file specified, using the default config\r\n<\/span>...\r\n<\/span>'fedora' template installed\r\n'fedora0' created\r\n<\/span>ubuntu@ubuntu:~$<\/span> sudo <\/span>lxc-start -n<\/span> fedora0\r\n\r\nFedora release 14 (Laughlin)\r\nKernel 3.2.0-24-generic-pae on an i686 (tty1)\r\n\r\nfedora0 login: root\r\nPassword: \r\nLast login: Tue Jul 15 01:01:39 on console\r\n<\/span>[root@fedora0 ~]#<\/span> uname<\/span> -a<\/span>\r\nLinux fedora0 3.2.0-24-generic-pae #<\/span>39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 i686 i386 GNU\/Linux\r\n<\/code><\/pre>\ncgroups\u662f\u4ec0\u4e48\uff1f<\/p>\n\n- \n
\u30ea\u30bd\u30fc\u30b9\u306e\u5236\u9650<\/ul>\n<\/li>\n<\/ul>\n\u30b0\u30eb\u30fc\u30d7\u5358\u4f4d\u3067\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u3092\u5236\u9650<\/p>\n
\u512a\u5148\u9806\u4f4d\u306e\u5909\u52d5<\/p>\n
\u30b0\u30eb\u30fc\u30d7\u5358\u4f4d\u3067CPU, Disk I\/O\u306e\u512a\u5148\u9806\u4f4d\u3092\u5909\u66f4<\/p>\n
\u76e3\u8996<\/p>\n
\u30b0\u30eb\u30fc\u30d7\u5358\u4f4d\u3067\u4f7f\u7528\u3057\u3066\u3044\u308b\u30ea\u30bd\u30fc\u30b9\u3092\u8a08\u4e0a<\/p>\n
\u5404\u30b0\u30eb\u30fc\u30d7\u306f\u968e\u5c64\u69cb\u9020\u3092\u6301\u3064<\/p>\n
\u5b50\u30b0\u30eb\u30fc\u30d7\u306f\u89aa\u30b0\u30eb\u30fc\u30d7\u306e\u5c5e\u6027\u3092\u4e00\u5b9a\u5f15\u304d\u7d99\u3050<\/p>\n
\u53e6\u5916\uff0c\u5148\u524d\u7684\u7248\u672c\u4f3c\u4e4e\u652f\u6301\u547d\u540d\u7a7a\u95f4\u7684\u5206\u79bb\uff0c\u4f46\u73b0\u5728\u5df2\u88ab\u5220\u9664\u3002\u8fd9\u610f\u5473\u7740\u547d\u540d\u7a7a\u95f4\u4f5c\u4e3a\u5185\u6838\u529f\u80fd\u662f\u72ec\u7acb\u7684\u5417\uff1f<\/p>\n
\u5982\u4f55\u4f7f\u7528\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u8ba8\u8bba\u4e00\u4e0b\u8d44\u6e90\u9650\u5236\u7684\u95ee\u9898\u3002\u9996\u5148\u8981\u8fdb\u884c\u5b89\u88c5\u3002<\/p>\n$<\/span> sudo <\/span>apt-get install <\/span>cgroup-bin\r\n<\/code><\/pre>\n\u76f8\u5173\u547d\u4ee4\u5305\u62ec\uff1a
\n– cgcreate
\n– cgexec
\n– cgclassify<\/p>\n
\u521b\u5efacgroup\u3002\u53ef\u4ee5\u9650\u5236\u5185\u5b58\u548cCPU\u8d44\u6e90\u3002<\/p>\n
$<\/span> sudo <\/span>cgcreate -g<\/span> memory,cpu:test\r\n<\/code><\/pre>\n\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684sysfs\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n
$<\/span> ls<\/span> -l<\/span> -l<\/span> \/sys\/fs\/cgroup\/cpu\/test\/\r\ntotal 0\r\n-rw-r--r-- 1 root root 0 Jul 15 13:17 cgroup.clone_children\r\n--w--w--w- 1 root root 0 Jul 15 13:17 cgroup.event_control\r\n-rw-r--r-- 1 root root 0 Jul 15 13:17 cgroup.procs\r\n-rw-r--r-- 1 root root 0 Jul 15 13:17 cpu.cfs_period_us\r\n-rw-r--r-- 1 root root 0 Jul 15 13:17 cpu.cfs_quota_us\r\n-rw-r--r-- 1 root root 0 Jul 15 13:17 cpu.rt_period_us\r\n-rw-r--r-- 1 root root 0 Jul 15 13:17 cpu.rt_runtime_us\r\n-rw-r--r-- 1 root root 0 Jul 15 13:17 cpu.shares\r\n-r--r--r-- 1 root root 0 Jul 15 13:17 cpu.stat\r\n-rw-r--r-- 1 root root 0 Jul 15 13:17 notify_on_release\r\n-rw-r--r-- 1 root root 0 Jul 15 13:17 tasks\r\n<\/span><\/code><\/pre>\n\u5728\u7279\u5b9a\u7684cgroup\u4e2d\u542f\u52a8\u8fdb\u7a0b\u3002<\/p>\n
$<\/span> sudo <\/span>cgexec -g<\/span> memory,cpu:test \/bin\/bash\r\n<\/code><\/pre>\n\u53ef\u4ee5\u770b\u51fa\u5b83\u5c5e\u4e8e\u6307\u5b9a\u7684CGroup\u3002<\/p>\n
#<\/span> cat<\/span> \/proc\/self\/cgroup\r\n5:freezer:\/sysdefault\r\n4:memory:\/test\r\n3:devices:\/sysdefault\r\n2:cpuacct:\/sysdefault\r\n1:cpu:\/test\r\n<\/span><\/code><\/pre>\nCPU\u7684\u4f18\u5148\u7ea7\u53ef\u4ee5\u8bbe\u5b9a\u3002\u4ee5100\u4e3a\u5355\u4f4d\uff0c10%\u7684\u4f18\u5148\u7ea7\u3002<\/p>\n
#<\/span> cat<\/span> \/sys\/fs\/cgroup\/cpu\/test\/cpu.shares \r\n1024\r\n<\/span>#<\/span> echo <\/span>100 ><\/span>\/sys\/fs\/cgroup\/cpu\/test\/cpu.shares\r\n<\/code><\/pre>\n\u5185\u5b58\u4f7f\u7528\u9650\u5236\u3002\u5c1d\u8bd5\u7533\u8bf7\u66f4\u591a\u5185\u5b58\u5c06\u5bfc\u81f4\u4ea4\u6362\u51fa\u5185\u5b58\u3002<\/p>\n
#<\/span> cat<\/span> \/sys\/fs\/cgroup\/memory\/test\/memory.limit_in_bytes\r\n9223372036854775807\r\n<\/span>#<\/span> echo<\/span> $((<\/span>1024<\/span>*<\/span>1024<\/span>))<\/span> ><\/span>\/sys\/fs\/cgroup\/memory\/test\/memory.limit_in_bytes\r\n<\/code><\/pre>\n\u53ef\u4ee5\u770b\u5230\u7edf\u8ba1\u6570\u636e\u3002<\/p>\n
cat \/sys\/fs\/cgroup\/cpu\/test\/cgroup.procs \r\n9239\r\n<\/span>#<\/span> ps auxw | grep <\/span>9239\r\nroot 9239 0.0 0.4 6960 2216 pts\/1 S 13:35 0:00 \/bin\/bash\r\n<\/span><\/code><\/pre>\nDocker \/ LXC \/ cgroups\u7684\u542b\u4e49\u662f\u76f8\u4f3c\u7684\u3002\u4e0d\u77e5\u600e\u4e48\u7684\uff0c\u611f\u89c9\u8fd9\u4e9b\u7cfb\u7edf\u6709\u4e9b\u76f8\u4f3c\uff0c\u4f46\u6700\u7ec8\u8fd9\u4e9b\u5173\u7cfb\u662f\u5982\u4f55\u7684\u5462\uff1f\u5173\u4e8e\u8fd9\u4e2a\u7591\u95ee\uff0c\u8fd9\u91cc\u63d0\u4f9b\u8be6\u7ec6\u89e3\u7b54\u3002<\/p>\n\n- \n
Docker\u306f\u4e0b\u4f4d\u30ec\u30a4\u30e4\u3068\u3057\u3066LXC\u3092\u5229\u7528\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
\u30b3\u30f3\u30c6\u30ca\u306e\u53ef\u642c\u6027\uff08LXC\u3067\u306f\u74b0\u5883\u304c\u7570\u306a\u308b\u3068\u30b3\u30f3\u30c6\u30ca\u306e\u4e92\u63db\u6027\u304c\u306a\u3044\uff09<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
\u30a2\u30d7\u30ea\u306e\u914d\u5e03\u306b\u6700\u9069\u5316\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
\u81ea\u52d5\u30d3\u30eb\u30c9(Dockerfile)<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
\u30b3\u30f3\u30c6\u30ca\u518d\u5229\u7528<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
\u30b3\u30f3\u30c6\u30ca\u5171\u6709<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\u69d8\u3005\u306a\u30c4\u30fc\u30eb\/\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u9023\u643a<\/ul>\n\u5982\u679c\u6309\u7167\u529f\u80fd\u5206\u7c7b,<\/p>\n
\u6587\u4ef6\u7cfb\u7edf\u7684\u5206\u79bb\u7531LXC(namespace)\u63d0\u4f9b\uff0c\u8d44\u6e90\u7684\u5206\u79bb\u7531LXC(cgroup)\u63d0\u4f9b\uff0c\u7f51\u7edc\u7684\u5206\u79bb\u7531LXC(cgroup)\u63d0\u4f9b\u3002\u6587\u4ef6\u7cfb\u7edf\u7684\u5199\u65f6\u590d\u5236\u7531AUFS\u63d0\u4f9b\uff0c\u65e5\u5fd7\u8bb0\u5f55\u7531Docker\u63d0\u4f9b\uff0c\u6587\u4ef6\u7684\u4fee\u6539\u7ba1\u7406\u548c\u91cd\u7528\u7531Docker\u63d0\u4f9b\uff0c\u4ea4\u4e92\u5f0fShell\u7531LXC\u63d0\u4f9b\u3002<\/dl>\n","protected":false},"excerpt":{"rendered":"\u5f53\u6211\u5728\u8c03\u67e5Docker\u65f6\uff0c\u5bf9\u5176\u5e95\u5c42\u7684LXC\u548ccgroup\u4ea7\u751f\u4e86\u5174\u8da3\uff0c\u56e0\u6b64\u8fdb\u884c\u4e86\u4e00\u4e9b\u7814\u7a76\u3002\u6211\u53ea\u662f\u7a0d\u5fae\u5c1d\u8bd5\u4e86\u4e00\u4e0b\u3002 […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-26835","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n
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