Re: [Puppet Users] Puppet 3.2 and Hiera: problem of order and tagged function
Hi,
I'm sorry but I haven't solved my problem yet. I haven't understood the
answer of David Schmitt. I use Puppet 3.2 and Hierra with yaml files for
the "classes" assignment. I would like something like that :
class monitoring {
if tagged(http) {
$http = "OK"
} else {
$http = "NO "
}
if tagged(mysql) {
$mysql = "OK"
} else {
$mysql = "NO "
}
# etc.
# etc.
}
But, as I have been explained, tagged is parse-order dependent. Is it
possible to have the same thing but witout parse-order dependency? Is there
a function like tagged but no parse-order dependency?
--
François Lafont
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Re: [Puppet Users] Puppet 3.2 and Hiera: problem of order and tagged function
Le vendredi 5 juillet 2013 17:43:47 UTC+2, David Schmitt a écrit :
> 2) I would like to have $var == "YES" whatever the order of classes in
> > the yaml file. Is it possible ?
>
> tagged() (and all other functions) are parse-order dependent. The stage
> definition only establishes an application order.
Ok, thank you for the distinction between "parse-order" and "application
order", I keep that in mnd. In these conditions, I think the "tagged()"
function loosing interest.
> The recommended way
> forward is to express the configuration dependency explicitly like so:
>
>class meta($one = true) {
> if $one {
>include one
> }
> or to directly integrate this into the class two. This depends on your
> actual use case.
>
Sorry, but I tried to understand your example but I didn't. Do I have to
put the "meta" class in the yaml file of my host? If yes, I don't see why
it solves the problem. Sorry. I'm a puppet beginner.
In fact, I'll explain the purpose of my post. I have choose a simplied
example.
I have a class named "monitoring" (but in my example it's the "two" class)
in which I want to define some variables according to some other classes
are used or not by the host. I show you :
class monitoring {
# if the host uses the http class $http = "http" else $http = "NONE"
# if the host uses the mysql class $mysql = "mysql" else $mysql = "NONE"
# etc.
}
I thought tagged() function will make the job but, as you explain me, it's
order-dependent. I'll try to think about your example...
--
François Lafont
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[Puppet Users] Puppet 3.2 and Hiera: problem of order and tagged function
Hello everybody,
I'm testing Puppet 3.2 and Hiera (installed with http://apt.puppetlabs.com)
on Debian Wheezy. Here is my "/etc/puppet/manifests/site.pp" file :
---
stage { "one": }
stage { "two": }
Stage['one'] -> Stage['two']
hiera_include('classes')
---
Here is the "init.pp" file of my "one" module :
---
class one ($stage = "one") {
notify {"Class one is done":
message => "Class one is loaded."
}
}
---
And here is the "init.pp" file of my "two" module :
---
class two ($stage = "two") {
if tagged("one") {
$var = "YES"
}
else {
$var = "NO"
}
notify {"Class two is done":
message => "The value of var is $var."
}
}
---
If I use this yaml file for my host :
---
---
classes:
- one
- two
---
then everything is ok ($var == "YES") :
---
# puppet agent --test
Info: Retrieving plugin
Info: Caching catalog for shinken.domaine.priv
Info: Applying configuration version '1373027591'
Notice: Class one is loaded.
Notice: /Stage[one]/One/Notify[Class one is done]/message: defined
'message' as 'Class one is loaded.'
Notice: The value of var is YES.
Notice: /Stage[two]/Two/Notify[Class two is done]/message: defined
'message' as 'The value of var is YES.'
Notice: Finished catalog run in 0.16 seconds
---
*But* if I use this yaml file for my host (change the order):
---
---
classes:
- two
- one
---
then $var == "NO" :
---
# puppet agent --test
Info: Retrieving plugin
Info: Caching catalog for shinken.domaine.priv
Info: Applying configuration version '1373027591'
Notice: Class one is loaded.
Notice: /Stage[one]/One/Notify[Class one is done]/message: defined
'message' as 'Class one is loaded.'
Notice: The value of var is NO.
Notice: /Stage[two]/Two/Notify[Class two is done]/message: defined
'message' as 'The value of var is NO.'
Notice: Finished catalog run in 0.12 seconds
---
Yet, with "Stage['one'] -> Stage['two']", the classed are loaded in the
good order.
1) Is it normal ?
2) I would like to have $var == "YES" whatever the order of classes in the
yaml file. Is it possible ?
Thanks in advance.
--
François Lafont
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