On Thu, Dec 16, 2010 at 2:57 PM, Tim Watts <t...@dionic.net> wrote:
> Hi Felix,
>
> Thanks for this - I am liking it.
>
>
>>> define remotefile($path, $module, $owner = root, $group = root, $mode
>>> = 0644, $ensure = present) {
>>> file { $name:
>>> ensure => $ensure,
>>> mode => $mode,
>>> owner => $owner,
>>> group => $group,
>>> source => "puppet:///modules/$module/$path",
>>> }
>>> }
>
> I tweaked it a bit:
>
> define remotefile( $owner = root, $group = root, $mode = 0644, $ensure =
> present) {
> file { $name:
> ensure => $ensure,
> mode => $mode,
> owner => $owner,
> group => $group,
> source => "puppet:///files/$name",
> }
> }
>
> and
>
> class syslog {
> remotefile { "/tmp/etc/syslog-ng/syslog-ng.conf": }
> }
>
> which is what I call concise (/tmp intentional).
>
>
>
>>
>> This compells me to elaborate a bit more. The problem with the above is
>> that you cannot have a remotefile that doesn't care about the mode
>> (i.e., let puppet accept whatever mode it finds on the client machine).
>>
>> If you just speicfy
>> remotefile { "/etc/motd": module => "all" }
>> the mode will be forced to 0644, which may not be what you want in edge
>> cases.
>>
>> This is the pattern we use for this problem:
>>
>> define remotefile($mode = "") {
>
> Sorry - I don;t understand this - is this pure ruby or puppet language?
Just to indicate it's an optional parameter, since default behavior is
handled as seen below.
>> if $mode != "" { File { mode => $mode } }
>
> If it were ruby, I might have expected File:Stat or whatever - but I can't
> find any docs on the puppet site describing "File".
Resource defaults, definitely a clever use:
http://docs.puppetlabs.com/guides/language_tutorial.html#resource-defaults
> any chance of a quick explanation please?
>
> I sort of see what the intent is - but not how it actually works.
>
>> file { $name:
>> source => "puppet:///.../$name"
>> }
>> }
>>
>> Actually, our remotefile has similar support for about *all* parameters
>> that "file" supports, except that owner and group indeed default to root
>> (you would not want to not set those explicitly).
>>
>> Also note that the "path" parameter is optional in our implementation.
>> Normally the URL uses $name, so if you need to override that behaviour,
>> you can fall back to specifying the path. This is handled by if-else
>> logic in the define.
>>
>> Cheers,
>> Felix
>>
>
> Many thanks,
>
> Tim
>
> BTW
>
> I am looking next to try a "define something" to do nodes.pp so I can
> declare "A inherits B" and have it set up some magic that the remotefile
> function can use inherently. Back with more on this if I get something
> working or get stuck...
>
> --
> Tim Watts
> Personal Email
>
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