Issue #2390 has been reported by Alexander Bien.
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Bug #2390: "ensure => running" not working on OpenVZ or similar solutions
http://projects.reductivelabs.com/issues/2390
Author: Alexander Bien
Status: Unreviewed
Priority: Normal
Assigned to:
Category:
Target version:
Complexity: Unknown
Affected version: 0.24.8
Keywords: openvz ensure
I have found the following bug while using OpenVZ/Virtuozzo & puppet. I assume
it will apply to any other lightweight virtualization that allows the host
system to see all childs processes. (if there are any other)
When creating a simple recepie like:
<pre>
service { puppet:
ensure => running,
enable => true;
}
</pre>
puppet will use ps -ef to look for a pid matching the process.
<pre>
debug: Service[puppet](provider=redhat): Executing 'ps -ef'
debug: Service[puppet](provider=redhat): PID is 4768
</pre>
This will (under circumstances) not result in the desired action on an OpenVZ
HOST due to the host seeing all process of all virtual containers.So as long as
there is another puppet running in any container on this host, the HOST's
puppet will find the PID, think everything is okay and move on.
Here we see the process that puppet found running and which satisfied our
earlier "ensure => running":
<pre>
[r...@vmserver ~]# ps aux | grep 4768
root 4768 0.1 1.4 45188 31076 ? Ssl 17:00 0:03
/usr/bin/ruby /usr/sbin/puppetd --server=puppet
</pre>
But this process does not belong to the host. In fact it belongs to the Virtual
Container 206:
<pre>
[r...@vmserver ~]# vzpid 4768
Pid VEID Name
4768 206 puppetd
</pre>
The HOST's puppet daemon is not running.
<pre>
[r...@vmserver ~]# service puppet status
puppetd is stopped
</pre>
This is actually true for any process/service, not only puppetd.
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