Puppet users - Dec 2010 - How the agents are distinguishing the matching config changes ?

Dear members,

I''m a newbie in Puppet. I was not able to find answers about this.
Could you please redirect me to the correct resources. Thank you.


I need to manage several Solaris10 servers. But I guess every server
wont have the same configuration or same templates. So how the agents
are distinguishing the correct configuration file which matches to the
server or the group ?

Thank you.

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On 10-12-28 09:45 AM, mbuyukkarakas wrote:
> Dear members,
> 
> I''m a newbie in Puppet. I was not able to find answers about this.
> Could you please redirect me to the correct resources. Thank you.
> 
> 
> I need to manage several Solaris10 servers. But I guess every server
> wont have the same configuration or same templates. So how the agents
> are distinguishing the correct configuration file which matches to the
> server or the group ?
well, generally you need to build your puppet modules so that the file
they send to the client can be set specifically for one server (or group
of servers, depending on your needs..)


here''s an example taken from a module for ''apt'' (the
whole file can be
seen at
https://labs.riseup.net/code/projects/shared-apt/repository/revisions/master/entry/manifests/init.pp
):

  apt_conf { "02show_upgraded":
    source => [
"puppet:///modules/site-apt/${fqdn}/02show_upgraded",
                "puppet:///modules/site-apt/02show_upgraded",
                "puppet:///modules/apt/02show_upgraded" ]
  }

so, here (for this example, let''s name the host requesting the config
file ''host1.example.com'') puppet first tries to find something
in the
''site-apt'' module''s files directory in the
''host1.example.com''
subdirectory (i.e.
''site-apt/files/host1.example.com/02show_upgraded'').

If there''s nothing there (or the subdirectory doesn''t exist),
it''ll try
to get ''site-apt/files/02show_upgraded''.

If this one is not there, its last resort is in the ''apt''
module. So,
it''ll try to find a file in
''apt/files/02show_upgraded''.

This way, you have one very generic file in the module, one way to
change the generic file (by putting one in the site-apt module) and one
way to set the config file''s contents to be specific to one host.

-- 
Gabriel Filion

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On 12/28/2010 03:45 PM, mbuyukkarakas wrote:
> Dear members,
> 
> I''m a newbie in Puppet. I was not able to find answers about this.
> Could you please redirect me to the correct resources. Thank you.
> 
> 
> I need to manage several Solaris10 servers. But I guess every server
> wont have the same configuration or same templates. So how the agents
> are distinguishing the correct configuration file which matches to the
> server or the group ?
> 
> Thank you.
> 
Look here: http://docs.puppetlabs.com/guides/language_tutorial.html#nodes

HTH,
Felix

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