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Functions can absolutely be used inside of manifests.
You may be running into an issue in that 'defined' works based on the
compile time order of your manifests.
Example:
class foo { ... }
class bar { ... }
# This does not work as expected
if ! defined(Class["foo"]) { ... }
include "foo"
# This does
include "foo"
if ! defined(Class["foo"]) { ... }
So, I'm guessing that whatever you're trying to do is including that
compile statement in an ordered include that you've already called.
Does that make sense?
Trevor
On 03/18/2010 02:34 PM, Douglas Garstang wrote:
> I have a situation where I am trying to manage some systems that have
> a single IP address but different ssh port numbers. For each of these
> systems I need to individually manage a logrotate.d configuration
> file, and a separate archive directory.
>
> Of course, this won't work...
>
> file {
> "/data/syslog/${remote_host}/archive":
> ensure => directory;
>
> "/etc/logrotate.d/syslogng-host-${remote_host}":
> content => template("syslog-ng/etc/logrotate.d/server.erb");
> }
>
> Puppet complains for the first entry that the file is not unique,
> since I am trying to call it multiple times with the same
> $remote_host. If the directory already exists, that's great. How can I
> make puppet skip it in that case? The puppet docs at
> http://docs.reductivelabs.com/references/stable/function.html state
> that there is an "if defined" function, but I've never gotten this to
> work, and the documentation really isn't very clear as to if functions
> are supposed to work inside a manifest.
>
> I tried this:
>
> file {
> if ! defined(File["/data/syslog/${remote_host}/archive"]) {
> "/data/syslog/${remote_host}/archive":
> ensure => directory;
> }
> }
>
> and this:
>
> if ! defined(File["/data/syslog/${remote_host}/archive"]) {
> file {
> "/data/syslog/${remote_host}/archive":
> ensure => directory;
> }
> }
>
> .... both of which resulted in errors. As I said, the documentation
> really isn't clear if functions CAN be used inside a manifest. That
> has always confused me and I wish someone would clear up the docs.
>
> For the second entry, I can simply make it unique by suffixing the
> unique ssh port number. That's not an option for the first file
> though.
>
> Doug
>
- --
Trevor Vaughan
Vice President, Onyx Point, Inc.
email: tvaug...@onyxpoint.com
phone: 410-541-ONYX (6699)
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