thks
Le mardi 14 août 2012 22:21:04 UTC+2, Dominic Cleal a écrit :
>
> On 14/08/12 18:18, Rost wrote:
> > Hi All,
> >
> > I would like to use puppet for deploying Jboss application.
> >
> > The property file of my Jboss app need to be evaluated before moving in
> > the conf dir as it's a template.
> >
> > How could I make this kind of operation with native resources of puppet.
> >
> >
> > *Example :*
> >
> > I have this file *myapp.properties.tmpl* :
> >
> > ApplicationName=${MY_APP_NAME}
> > ApplicationVersion=${MY_APP_VERSION}
> > ...
> >
> >
> > And I have the file *global.properties* :
> >
> > ${MY_APP_NAME}=helloworld
> > ${MY_APP_VERSION}=1.0.0
>
> This here feels like you're not solving the actual problem, but working
> around a bug elsewhere in your design.
>
> > I would like to replace variables in myapp.properties.tmpl with the
> > right value in global.properties and generate the new file
> > *myapp.properties* with
> >
> > ApplicationName=helloworld
> > ApplicationVersion=1.0.0
> >
> > Is that possible, may be with tools like Augeas?
>
> The first thing you need is to get the data ("helloworld", "1.0.0") into
> Puppet. Ideally via an ENC or hiera or similar.
>
> If it only exists on the filesystem of the host at the start of a run
> and you really must, you could use a fact, but you're going into weird
> territory as your system build will then depend on the existing state of
> the system. Definitely an anti-pattern here, but possible.
>
> You can use Augeas in facts, but only the properties lens as it exists
> in master (rather than the 0.9.0 release) can parse that
> global.properties file. Something like this:
>
> http://pastie.org/4475806
> http://projects.puppetlabs.com/projects/facter/wiki/Facter_Augeas
>
> Or do something similar in Ruby to pull the value out of the file on the
> host and present it in a fact.
>
> Once you have the value in Puppet, then creating or editing
> myapp.properties with Augeas is trivial, or use a template:
>
> augeas { "myapp.properties":
> lens => "Properties.lns",
> incl => "/path/to/myapp.properties",
> changes => [
> "set ApplicationName ${appname}",
> "set ApplicationVersion ${appversion}",
> ],
> }
>
> (Where $appname and $appversion are Puppet variables, facts or a proper
> data source.)
>
> Cheers,
>
> --
> Dominic Cleal
> Red Hat Consulting
> m: +44 (0)7817 878113
>
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