On Jun 26, 2010, at 12:32 AM, Thomas Bellman wrote:
> Jean-Baptiste Barth wrote:
>
>> I'd like to be able to deploy a skeleton directory through puppet, i.e.
>> puppet deploys it only if it does not exist.
> [...]
>> But I have 2 problems for the moment :
>> - if I don't set owner/group, it takes uid/gid on the puppetmaster, which
>> does not exist on the node ; if I do set these options, the directory is
>> scanned each time and all files are chown'ed to this user/group, which is
>> absolutely not desired behaviour in my case (puppet should not change
>> ownership for files it doesn't manage in my case...)
>> - I'd like puppet to let user change some files in the skeleton as they
>> want, i.e. skip this directory if it just exists
>
> The second problem you can solve by using the 'replace => false'
> parameter to the file type. However, if the user *removes* one
> of the files in the skeleton directory, then Puppet will download
> it again, so maybe it isn't quite enough.
>
> And even with 'replace => false', Puppet will manage ownerships
> and modes of all files.
>
> One solution is to develop a custom fact that gets set to true
> if the target directory already exists, and not set if it doesn't.
> Then you can do
>
> if $dir_opt_foo_data_exists != "true" {
> file {
> "/opt/foo/data": source => ..., recurse => true, ...;
> }
> }
>
> This doesn't scale very well to many directories, though, as you
> need one custom fact for each such directory. Another way is to
> do it with an exec:
>
> exec {
> opt-foo-data:
> command => "wget -r http://.../ && chown -R auser:agroup data",
> cwd => "/opt/foo", path => "/bin:/usr/bin",
> creates => "/opt/foo";
> }
>
> Note the use of the parameter 'creates => "/opt/foo"', which will
> make Puppet only run the command if /opt/foo doesn't already exist.
>
> The disadvantage is that you need to configure and run a web server
> (or ftp server) somewhere as well.
I usually do it this way (using wget and tar), but you could push the directory
somewhere else using puppet and put "cp -a" in the exec.
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