Jira (PUP-5126) Feature Request - Ability to extract an array or hash of values from collected resources - or make resource collections enumerable

[Johnson Earls (JIRA)]

Title: Message Title

Johnson Earls created an issue   Puppet / PUP-5126 Feature Request - Ability to extract an array or hash of values from collected resources - or make resource collections enumerable Issue Type: New Feature Assignee: Unassigned Components: Language Created: 2015/08/31 1:29 PM Priority: Normal Reporter: Johnson Earls I have a need to find all resources of type X in the catalog and build a new resource based on attributes set in those type X resources. If I have: myres { 'foo': value => 1 } myres { 'bar': value => 2 } myres ( 'baz': value => 4 } myres { 'quux': value => 8 } I need to be able to do something like... $values = Myres <| |>['value'] # $values is now an array containing [1,2,4,8] in some arbitrary order otherres { 'zeb': values => $values } or $values = map(Myres <| |>) |$x| { $x['value'] } # $values is now an array containing [1,2,4,8] in some arbitrary order otherres { 'zeb': values => $values } If there is not a way to do this already, could something like this be added? My specific, real, use case is: I have a set of NFS mounts that are created something like this: mount { '/mnt/foo': ensure => mounted , atboot => true , device = 'nfsserver:/export/foo' , fstype = nfs , options = 'comment=managed-by-puppet' , tag = 'purgable' , } mount { '/mnt/bar': … options = 'comment=managed-by-puppet' , tag = 'purgable' , } … I need to collect all the mounts with tag = 'purgable' and build an augeas _expression_ that will exclude those mountpoints from a changeset to purge all fstab entries that include comment=managed-by-puppet. This will allow us to remove mountpoints and be sure that they will be purged from the /etc/fstab file automatically. I originally coded this without worrying about trying to collect the resources, and just made the mount resources require the augeas change. However, this meant that, every time puppet ran, augeas would purge the entries and then the mount resources would recreate them. This is not a safe way to do things. I would prefer to only purge entries that the existing mount resources are not managing. Thank you Add Comment   This message was sent by Atlassian JIRA (v6.4.5#64020-sha1:78acd6c) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at http://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.