Puppet users - May 2009 - Build an XML file using exported resources

I have an XML file which contains a list of services for a piece of
middleware, where a service is a tuple: ServiceType, IP Address, Port
number.

I would like to generate this file automatically for each node whenever I
add a new service into puppet. I think external resources are the way to go
about this but I''m not sure how to proceed from there:

Do I need to code up my own Puppet Type, I guess something like the sshkey
type, and have it output the XML file? Or can I concatenate files similar to
David Schmitt''s technique in his modules-common?

Joel

--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---

Joel,

Would a template be more what you are looking for? I''ve only done
a couple of very simple templates myself, but it sounds like the sort
of thing that it would be suited to - provided you can get the
required
info to the .erb file...

Greg

On May 27, 9:24 am, Joel Heenan <jo...@planetjoel.com>
wrote:
> I have an XML file which contains a list of services for a piece of
> middleware, where a service is a tuple: ServiceType, IP Address, Port
> number.
>
> I would like to generate this file automatically for each node whenever I
> add a new service into puppet. I think external resources are the way to go
> about this but I''m not sure how to proceed from there:
>
> Do I need to code up my own Puppet Type, I guess something like the sshkey
> type, and have it output the XML file? Or can I concatenate files similar
to
> David Schmitt''s technique in his modules-common?
>
> Joel
--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---

Greg,

What I struggled with with a template is that the data is multi-dimensional.
So for instance I did:

$policyengines = [ "PolicyEngine01/10.4.4.1",
"PolicyEngine02/10.4.4.2" ]

Then in the template I could $policyengine.split("/")[0] to pull out
various
aspects. And this works, but its ugly as all hell and is very inflexible.

Can you take exported resources, put them into an array, then feed them into
a template and access them as fully blown objects? That would solve my
problem I think.

Joel

On Wed, May 27, 2009 at 10:07 AM, Greg <greg.boug@gmail.com> wrote:
>
> Joel,
>
> Would a template be more what you are looking for? I''ve only done
> a couple of very simple templates myself, but it sounds like the sort
> of thing that it would be suited to - provided you can get the
> required
> info to the .erb file...
>
> Greg
>
> On May 27, 9:24 am, Joel Heenan <jo...@planetjoel.com> wrote:
> > I have an XML file which contains a list of services for a piece of
> > middleware, where a service is a tuple: ServiceType, IP Address, Port
> > number.
> >
> > I would like to generate this file automatically for each node
whenever I
> > add a new service into puppet. I think external resources are the way
to
> go
> > about this but I''m not sure how to proceed from there:
> >
> > Do I need to code up my own Puppet Type, I guess something like the
> sshkey
> > type, and have it output the XML file? Or can I concatenate files
similar
> to
> > David Schmitt''s technique in his modules-common?
> >
> > Joel
> >
>
--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---

You could simply dump xml output inside your template.

e.g. if you have a simple ruby hash a[:b]="c"
in your template do:
<%=a.to_xml%> and you will get the following output:

=> "<?xml version=\"1.0\"
encoding=\"UTF-8\"?>\n<hash>\n
<b>c</b>\n</hash>\n"

cheers,
Ohad


On Wed, May 27, 2009 at 8:13 AM, Joel Heenan <joelh@planetjoel.com> wrote:
> Greg,
>
> What I struggled with with a template is that the data is
> multi-dimensional. So for instance I did:
>
> $policyengines = [ "PolicyEngine01/10.4.4.1",
"PolicyEngine02/10.4.4.2" ]
>
> Then in the template I could $policyengine.split("/")[0] to pull
out
> various aspects. And this works, but its ugly as all hell and is very
> inflexible.
>
> Can you take exported resources, put them into an array, then feed them
> into a template and access them as fully blown objects? That would solve my
> problem I think.
>
> Joel
>
>
> On Wed, May 27, 2009 at 10:07 AM, Greg <greg.boug@gmail.com> wrote:
>
>>
>> Joel,
>>
>> Would a template be more what you are looking for? I''ve only
done
>> a couple of very simple templates myself, but it sounds like the sort
>> of thing that it would be suited to - provided you can get the
>> required
>> info to the .erb file...
>>
>> Greg
>>
>> On May 27, 9:24 am, Joel Heenan <jo...@planetjoel.com> wrote:
>> > I have an XML file which contains a list of services for a piece
of
>> > middleware, where a service is a tuple: ServiceType, IP Address,
Port
>> > number.
>> >
>> > I would like to generate this file automatically for each node
whenever
>> I
>> > add a new service into puppet. I think external resources are the
way to
>> go
>> > about this but I''m not sure how to proceed from there:
>> >
>> > Do I need to code up my own Puppet Type, I guess something like
the
>> sshkey
>> > type, and have it output the XML file? Or can I concatenate files
>> similar to
>> > David Schmitt''s technique in his modules-common?
>> >
>> > Joel
>>
>>
>
> >
>
--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---

Ohad,

Thanks for that, that is quite interesting. Unfortunately AFAIK I can''t
define the hashes in puppet so this is leading to a kinda - read the YAML,
parse it, output XML file kinda solution I think which is probably what I
was trying to avoid if only because it doesn''t seem like the
"puppet way".

Cheers

Joel

On Wed, May 27, 2009 at 10:41 AM, Ohad Levy <ohadlevy@gmail.com> wrote:
> You could simply dump xml output inside your template.
>
> e.g. if you have a simple ruby hash a[:b]="c"
> in your template do:
> <%=a.to_xml%> and you will get the following output:
>
> => "<?xml version=\"1.0\"
encoding=\"UTF-8\"?>\n<hash>\n
> <b>c</b>\n</hash>\n"
>
> cheers,
> Ohad
>
>
>
> On Wed, May 27, 2009 at 8:13 AM, Joel Heenan <joelh@planetjoel.com>
wrote:
>
>> Greg,
>>
>> What I struggled with with a template is that the data is
>> multi-dimensional. So for instance I did:
>>
>> $policyengines = [ "PolicyEngine01/10.4.4.1",
"PolicyEngine02/10.4.4.2" ]
>>
>> Then in the template I could $policyengine.split("/")[0] to
pull out
>> various aspects. And this works, but its ugly as all hell and is very
>> inflexible.
>>
>> Can you take exported resources, put them into an array, then feed them
>> into a template and access them as fully blown objects? That would
solve my
>> problem I think.
>>
>> Joel
>>
>>
>> On Wed, May 27, 2009 at 10:07 AM, Greg <greg.boug@gmail.com>
wrote:
>>
>>>
>>> Joel,
>>>
>>> Would a template be more what you are looking for? I''ve
only done
>>> a couple of very simple templates myself, but it sounds like the
sort
>>> of thing that it would be suited to - provided you can get the
>>> required
>>> info to the .erb file...
>>>
>>> Greg
>>>
>>> On May 27, 9:24 am, Joel Heenan <jo...@planetjoel.com> wrote:
>>> > I have an XML file which contains a list of services for a
piece of
>>> > middleware, where a service is a tuple: ServiceType, IP
Address, Port
>>> > number.
>>> >
>>> > I would like to generate this file automatically for each node
whenever
>>> I
>>> > add a new service into puppet. I think external resources are
the way
>>> to go
>>> > about this but I''m not sure how to proceed from
there:
>>> >
>>> > Do I need to code up my own Puppet Type, I guess something
like the
>>> sshkey
>>> > type, and have it output the XML file? Or can I concatenate
files
>>> similar to
>>> > David Schmitt''s technique in his modules-common?
>>> >
>>> > Joel
>>>
>>>
>>
>>
>>
>
> >
>
--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---