Version information
This version is compatible with:
- Puppet Enterprise 2023.8.x, 2023.7.x, 2023.6.x, 2023.5.x, 2023.4.x, 2023.3.x, 2023.2.x, 2023.1.x, 2023.0.x, 2021.7.x, 2021.6.x, 2021.5.x, 2021.4.x, 2021.3.x, 2021.2.x, 2021.1.x, 2021.0.x, 2019.8.x, 2019.7.x, 2019.5.x, 2019.4.x, 2019.3.x, 2019.2.x, 2019.1.x, 2019.0.x
- Puppet >= 6.0.0
Start using this module
Add this module to your Puppetfile:
mod 'choria-mcollective_agent_shell', '1.0.4'
Learn more about managing modules with a PuppetfileDocumentation
Shell agent
The shell agent allows you to start and manage shell commands via mcollective.
It allows the running of long-running processes with a mechanism to check in on the output from these long-running processes, which is independent of the mcollective daemon process (the daemon can be restarted without interrupting the processes)
Please note: we do not recommend this agent as a way of building out your automation, for that you're still better off writing your own tailored agents that fit your use case. This agent is targeted at the ad-hoc needs that people occasionally have.
Actions
This agent provides the following actions, for details about each please run mco plugin doc agent/shell
- kill - Kill a command by handle
- list - Get a list of all running commands
- run - Run a command
- start - Spawn a command
- status - Get status of managed command
Installation
Add the agent and client:
mcollective::plugin_classes:
- mcollective_agent_shell
Configuring the agent
The agent should work without any additional configuration, though there are some options you can tune via Hiera.
.state_directory
This is where the state used to track processes will live. By default this
will be /var/run/mcollective-shell
on Unix systems.
mcollective_agent_shell::config:
state_directory: /opt/run/mcollective-shell
Application usage
The mco shell
application has several subcommands to start and manage
processes.
mco shell run
Runs a command and reports back. Use this for discrete short-living commands.
For long-running commands look at start
or run --tail
.
$ mco shell run dir
* [ ============================================================> ] 2 / 2
master:
bin dev home lib64 media opt root selinux srv tmp vagrant
boot etc lib lost+found mnt proc sbin src sys usr var
server2008r2a:
Volume in drive C has no label.
Volume Serial Number is DADF-75F9
Directory of C:\
09/22/2012 11:45 AM <SYMLINKD> manifests [\\vboxsrv\manifests]
09/22/2012 11:45 AM <SYMLINKD> modules [\\vboxsrv\modules]
07/13/2009 08:20 PM <DIR> PerfLogs
09/22/2012 11:42 AM <DIR> Program Files
03/27/2014 06:52 AM <DIR> Program Files (x86)
07/03/2014 07:42 AM <SYMLINKD> src [\\vboxsrv\C:_src]
03/27/2014 06:39 AM <DIR> Users
07/03/2014 07:42 AM <SYMLINKD> vagrant [\\vboxsrv\vagrant]
03/27/2014 06:41 AM <DIR> Windows
0 File(s) 0 bytes
9 Dir(s) 34,565,091,328 bytes free
Finished processing 2 / 2 hosts in 221.28 ms
mco shell run --tail
Starts a command, shows you the output from it, kills the command when you interrupt with control-c, exits normally when the command exits.
$ mco shell -I /master/ run --tail vmstat 1
* [ ============================================================> ] 1 / 1
master stdout: procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
master stdout: r b swpd free buff cache si so bi bo in cs us sy id wa st
master stdout: 0 1 445812 120584 5808 37348 34 29 52 48 39 47 6 1 93 0 0
master stdout: 1 0 445112 122692 5824 37332 2692 0 2692 84 911 2089 47 9 40 4 0
master stdout: 1 0 444848 122576 5824 37344 288 0 288 0 773 1914 48 5 47 0 0
master stdout: 0 0 444012 121320 5824 37348 1212 0 1212 0 823 1917 47 6 45 1 0
master stdout: 0 0 443984 121204 5824 37372 0 0 0 0 797 1796 52 5 43 0 0
master stdout: 0 0 438800 117244 5824 37360 3896 0 3896 0 910 2123 49 6 45 0 0
master stdout: 1 0 438768 117136 5840 37368 0 0 0 136 811 1926 48 6 45 0 0
^CAttempting to stopping cleanly, interrupt again to kill
Sending kill to master 6dad5cb9-57f7-46e0-bad7-07ab117369a5
mco shell start
Starts a command in the background and tells you the id that has been assigned
to it. You can then use mco shell watch
, mco shell kill
, mco shell list
to monitor this process and observe its output
$ mco shell -I /master/ start vmstat 1
* [ ============================================================> ] 1 / 1
master: 0dd67fac-734f-4824-8b4d-03100d4f9d07
Finished processing 1 / 1 hosts in 76.37 ms
mco shell watch
Shows you the output of a command you previously started with mco shell start
$ mco shell watch 0dd67fac-734f-4824-8b4d-03100d4f9d07
* [ ============================================================> ] 2 / 2
master stdout: procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
master stdout: r b swpd free buff cache si so bi bo in cs us sy id wa st
master stdout: 2 0 431448 110704 8484 40644 34 29 52 48 40 47 6 1 93 0 0
mco shell list
Show a list of running jobs.
$ mco shell list -v
* [ ============================================================> ] 2 / 2
master:
0dd67fac-734f-4824-8b4d-03100d4f9d07
1fd3961a-f48d-4119-b988-146b490a5ca3
d174e20b-9cdb-4c14-9f34-fd29995f30cb
ea809b20-3123-46b4-bf59-10ff7251ca9b
Finished processing 2 / 2 hosts in 142.34 ms
mco shell kill
Kill a running job.
$ mco shell kill 0dd67fac-734f-4824-8b4d-03100d4f9d07
* [ ============================================================> ] 2 / 2
Finished processing 2 / 2 hosts in 170.17 ms
Changelog
Change history for choria/mcollective_agent_shell
1.0.4
Released 2019-09-20
- Improve compatibility with the pure JSON Choria Server
1.0.3
Released 2018-04-20
- Include JSON DDL files
- Add Licencing files and contribution guidelines
1.0.2
Release 2018-03-07
- Further adjustments for compatability with the mco plugin packager (#3)
1.0.1
Release 2018-03-06
- Adjust file layout to be compatible with mco plugin packager (#3)
1.0.0
Released 2018-02-28
- Initial release as part of the Choria Project
0.0.2
Released 2015-03-12
- Removed saucy cows from build targets (MCOP-271)
- Add explicit
require 'pathname'
to fix agent in some configuration (PR#4)
0.0.1
Released 2014-07-17
- Initial public release
Dependencies
- choria/mcollective (>= 0.9.3 < 2.0.0)
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