On Nov 21, 7:55 am, Nick <oinksoc...@letterboxes.org> wrote:
> A problem I've run into during my first attempts at writing manifests, is
> knowing what possible facts are available, and for a given fact, what values
> my
> manifest might encounter.
I use 'default' matches liberally. For required values I throw an
error or warning where a value isn't found. Usually you can set a sane
default inside the resource[1]:
file { 'sshdconfig':
name => $operatingsystem ? {
solaris => '/usr/local/etc/ssh/sshd_config',
default => '/etc/ssh/sshd_config',
},
}
Or when the value must be known to get a functional catalog:
class foo::client {
case $operatingsystem {
'redhat': { include foo::client::redhat }
'solaris': { include foo::client::solaris }
default: { fail( "unsupported operatingsystem
\"$operatingsystem\" ")}
}
}
> Of course, I know that not all facts can be enumerated, but I had expected
> there
> be a catalog of common facts and their values somewhere, but there seems not
> to
> be. The Facter page [1] and API documentation [2] give rather scanty
> information about anything, yet alone list any values. Ultimately I've been
> forced to search out the source code and infer the values from that.
I'd suggest opening a ticket for the documentation. I think puppetlabs
is making a push to improve the docs, but need tickets to prioritize
work.
> Then there is the question of how consistent the list of facts and their
> values
> are from version to version of Puppet/Facter. That is even harder to discover
> from the source code.
I've been using puppet since .22 and I can't recall any facts changing
drastically. Usually its simply facts expanding to resolve more
accurate data.
[1] http://docs.puppetlabs.com/guides/language_tutorial.html
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