众所周知，mcollecitve只是一个框架而已，它单独是干不了任何事情的，如果要让他去操作一个平台，是需要插件（plugins）进行操作的，比如通过puppet插件去管理节点puppet的所有命令，通
众所周知，mcollecitve只是一个框架而已，它单独是干不了任何事情的，如果要让他去操作一个平台，是需要插件（plugins）进行操作的，比如通过puppet插件去管理节点puppet的所有命令，通过fact插件去管理fact的所有参数等等，那么如何去管理系统的命令呢，这就需要shell插件。
插件下载地址：https://github.com/kisspuppet/mcollective-plugins，有github客户端的童鞋可直接clonehttps://github.com/kisspuppet/mcollective-plugins.git
更多有关puppet的文章可访问http://kisspuppet.com
1、下载插件放在对应的目录里即可
mcollective-client端
mcollective-server端
[root@linux57poc agent]# ll /usr/libexec/mcollective/mcollective/agent/ | grep shell -rw-r--r-- 1 root root 1017 Aug 6 06:36 shell.ddl -rw-r--r-- 1 root root 862 Aug 6 06:36 shell.rb备注：mcollective-server端部署完成之后，记得重启mcollective服务。
2、 查看shell插件是否加载成功
从下面可以看出mcollective-client端shell插件已经有了[root@linuxmaster1poc ~]# mco The Marionette Collective version 2.2.4
usage: /usr/bin/mco command <options> Known commands: completion facts find help inventory ping plugin puppet rpc shell #shell插件加载OK Type '/usr/bin/mco help' for a detailed list of commands and '/usr/bin/mco help command' to get detailed help for a command从下面可以看出mcollective-server端shell插件也加载了
[root@linuxmaster1poc ~]# mco inventory linux57poc Inventory for linux57poc: Server Statistics: Version: 2.2.4 Start Time: Fri Dec 13 01:14:14 +0800 2013 Config File: /etc/mcollective/server.cfg Collectives: mcollective Main Collective: mcollective Process ID: 23898 Total Messages: 10 Messages Passed Filters: 10 Messages Filtered: 0 Expired Messages: 0 Replies Sent: 9 Total Processor Time: 0.73 seconds System Time: 0.17 seconds Agents: discovery puppet rpcutil shell #shell插件加载OK Data Plugins: agent fstat puppet resource Configuration Management Classes: No classes applied Facts: architecture => x86_64 augeasversion => 0.10.0 bios_release_date => 06/22/2012 bios_vendor => Phoenix Technologies LTD bios_version => 6.00 blockdevice_fd0_size => 4096 blockdevice_hdc_size => 3834736640 blockdevice_sda_model => Virtual disk blockdevice_sda_size => 42949672960 。。。3、通过shell插件执行shell命令
mco shell帮助信息
[root@linuxmaster1poc ~]# mco shell --help MCollective Distributed Shell Usage: mco shell <CMD> The CMD is a string EXAMPLES: mco shell uptime --np, --no-progress Do not show the progress bar -1, --one Send request to only one discovered nodes --batch SIZE Do requests in batches --batch-sleep SECONDS Sleep time between batches --limit-seed NUMBER Seed value for deterministic random batching --limit-nodes, --ln, --limit COUNT Send request to only a subset of nodes, can be a percentage -j, --json Produce JSON output --display MODE Influence how results are displayed. One of ok, all or failed -c, --config FILE Load configuratuion from file rather than default -v, --verbose Be verbose -h, --help Display this screen Common Options -T, --target COLLECTIVE Target messages to a specific sub collective --dt, --discovery-timeout SECONDS Timeout for doing discovery -t, --timeout SECONDS Timeout for calling remote agents -q, --quiet Do not be verbose --ttl TTL Set the message validity period --reply-to TARGET Set a custom target for replies --dm, --disc-method METHOD Which discovery method to use --do, --disc-option OPTION Options to pass to the discovery method --nodes FILE List of nodes to address Host Filters -W, --with FILTER Combined classes and facts filter -S, --select FILTER Compound filter combining facts and classes -F, --wf, --with-fact fact=val Match hosts with a certain fact -C, --wc, --with-class CLASS Match hosts with a certain config management class -A, --wa, --with-agent AGENT Match hosts with a certain agent -I, --wi, --with-identity IDENT Match hosts with a certain configured identity The Marionette Collective 2.2.4显示对端uptime命令负载情况
[root@linuxmaster1poc ~]# mco shell "uptime" Do you really want to send this command unfiltered? (y/n): y Discovering hosts using the mc method for 2 second(s) .... 3 Host: linux58poc Statuscode: 0 Output: 02:45:02 up 21:10, 2 users, load average: 0.00, 0.00, 0.00 Host: linux64poc Statuscode: 0 Output: 02:45:02 up 20:59, 1 user, load average: 0.00, 0.00, 0.00 Host: linux57poc Statuscode: 0 Output: 02:45:02 up 21:04, 3 users, load average: 0.00, 0.00, 0.00显示所有节点/etc/password文件中puppet用户哪一行
[root@linuxmaster1poc ~]# mco shell "cat /etc/passwd | grep puppet" Do you really want to send this command unfiltered? (y/n): y Discovering hosts using the mc method for 2 second(s) .... 3 Host: linux58poc Statuscode: 0 Output: puppet:x:52:52:Puppet:/var/lib/puppet:/sbin/nologin Host: linux64poc Statuscode: 0 Output: puppet:x:52:52:Puppet:/var/lib/puppet:/sbin/nologin Host: linux57poc Statuscode: 0 Output: puppet:x:52:52:Puppet:/var/lib/puppet:/sbin/nologin修改其中一台主机的root密码
备注：更多操作步骤可参考mco shell --help帮助。
警告：基于mcollective的shell插件虽然功能很强大，除了动态显示的命令之外，其它root能操作的，它基本上都能操作。所以操作也非常危险，可根据生产环境实际情况而定。