Puppet users - Jan 2011 - Retrieving Version Numbers from Packages

Hi,

I install the latest version of a Ruby gem using:

package { ''passenger'': ensure => latest, provider =>
''gem'' }

However, I want to retrieve the actual version number for further
configuration. Is this possible?

I don''t think I can use a custom fact since it may be evaluated on the
client before the gem is installed. Is there something like
Package[''passenger''].version?

Regards,
Martin.

-- 
You received this message because you are subscribed to the Google Groups
"Puppet Users" group.
To post to this group, send email to puppet-users@googlegroups.com.
To unsubscribe from this group, send email to
puppet-users+unsubscribe@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/puppet-users?hl=en.

On Thu, Jan 6, 2011 at 09:24, Martin Harrigan <martinharrigan@gmail.com>
wrote:
> I install the latest version of a Ruby gem using:
>
> package { ''passenger'': ensure => latest, provider
=> ''gem'' }
>
> However, I want to retrieve the actual version number for further
> configuration. Is this possible?
Not inside the puppet catalog in a client/server situation: the
catalog is fully and completely compiled on the server, sent to the
client, and then executed - at which point any passenger upgrade would
happen.
> I don''t think I can use a custom fact since it may be evaluated on
the
> client before the gem is installed. Is there something like
> Package[''passenger''].version?
Your two choices I can see at this stage are:

1. Use an ''exec'' or something like that which evaluates on the
client,
and ensure that it depends on the package action so that is completed
first.  That can then react, and a ''refreshonly'' exec will
trigger
only when the upgrade happened.

2. Use a custom fact, and accept that you have two run puppet twice
for things to converge on your machines.

If you tell us *why* you need to know the version number, though, we
might be able to suggest the super-clever and much nicer option number
3 for you. ;)

Regards,
    Daniel
-- 
✉ Daniel Pittman <daniel@rimspace.net>
⌨ daniel@rimspace.net (XMPP)
☎ +1 503 893 2285
♻ made with 100 percent post-consumer electrons

-- 
You received this message because you are subscribed to the Google Groups
"Puppet Users" group.
To post to this group, send email to puppet-users@googlegroups.com.
To unsubscribe from this group, send email to
puppet-users+unsubscribe@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/puppet-users?hl=en.

On Thu, Jan 6, 2011 at 5:55 PM, Daniel Pittman <daniel@rimspace.net>
wrote:
> On Thu, Jan 6, 2011 at 09:24, Martin Harrigan
<martinharrigan@gmail.com>
> wrote:
>
> > I install the latest version of a Ruby gem using:
> >
> > package { ''passenger'': ensure => latest, provider
=> ''gem'' }
> >
> > However, I want to retrieve the actual version number for further
> > configuration. Is this possible?
>
> Not inside the puppet catalog in a client/server situation: the
> catalog is fully and completely compiled on the server, sent to the
> client, and then executed - at which point any passenger upgrade would
> happen.
>
> > I don''t think I can use a custom fact since it may be
evaluated on the
> > client before the gem is installed. Is there something like
> > Package[''passenger''].version?
>
> Your two choices I can see at this stage are:
>
> 1. Use an ''exec'' or something like that which evaluates
on the client,
> and ensure that it depends on the package action so that is completed
> first.  That can then react, and a ''refreshonly'' exec
will trigger
> only when the upgrade happened.
>
> 2. Use a custom fact, and accept that you have two run puppet twice
> for things to converge on your machines.
>
> If you tell us *why* you need to know the version number, though, we
> might be able to suggest the super-clever and much nicer option number
> 3 for you. ;)
>
After installing Passenger, I install nginx. I use the template below for an
nginx configuration file:
...
http {
passenger_root /usr/lib64/ruby/gems/1.8/gems/passenger-<%= passenger_version
%>;
...
}
...

My problem is the passenger_version variable. I need to know the version of
Passenger that was installed in the previous step.

Thank you for your suggestions; I will try something like (1).

Martin.

-- 
You received this message because you are subscribed to the Google Groups
"Puppet Users" group.
To post to this group, send email to puppet-users@googlegroups.com.
To unsubscribe from this group, send email to
puppet-users+unsubscribe@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/puppet-users?hl=en.

On Jan 7, 2011 9:07 AM, "Martin Harrigan"
<martinharrigan@gmail.com> wrote:
> On Thu, Jan 6, 2011 at 5:55 PM, Daniel Pittman <daniel@rimspace.net>
wrote:
>> On Thu, Jan 6, 2011 at 09:24, Martin Harrigan
<martinharrigan@gmail.com>
wrote:
>>
>> > I install the latest version of a Ruby gem using:
>> > package { ''passenger'': ensure => latest,
provider => ''gem'' }
>> >
>> > However, I want to retrieve the actual version number for further
>> > configuration. Is this possible?
>>
>> 1. Use an ''exec'' or something like that which
evaluates on the client,
>> and ensure that it depends on the package action so that is completed
>> first.  That can then react, and a ''refreshonly'' exec
will trigger
>> only when the upgrade happened.
>
> After installing Passenger, I install nginx. I use the template below for
an
> nginx configuration file:
> ...
> http {
> passenger_root
/usr/lib64/ruby/gems/1.8/gems/passenger-<%passenger_version
> %>;
> ...
> }
> ...
>
> My problem is the passenger_version variable. I need to know the version
of
> Passenger that was installed in the previous step.
>
> Thank you for your suggestions; I will try something like (1).
I would probably use a fixed path in my nginx template, and use the exec to
make that path a symlink to the appropriate version of the passenger gem.

Regards,
    Daniel

-- 
You received this message because you are subscribed to the Google Groups
"Puppet Users" group.
To post to this group, send email to puppet-users@googlegroups.com.
To unsubscribe from this group, send email to
puppet-users+unsubscribe@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/puppet-users?hl=en.