Jira (PUP-2718) Prefetching is prone to fail for eval_generated resources

[Felix Frank (JIRA)]

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Felix Frank created an issue   Puppet / PUP-2718 Prefetching is prone to fail for eval_generated resources Issue Type: Improvement Affects Versions: 3.x Assignee: Kylo Ginsberg Components: Catalog Application Created: 03/Jun/14 3:50 AM Priority: Minor Reporter: Felix Frank When the User type implemented purging of ssh_authorized_keys using the eval_generate hook, it became apparent that the following manifest "package { 'coreutils': before => User[root] } user { 'root': purge_ssh_keys => '/tmp/keyfile' }" would not purge any keys from /tmp/keyfile. The reason is that prefetching of the keys fails in the following fashion: When Transaction#evaluate starts traversing the graph, no ssh_authorized_key resources are yet part of the graph each resource has a pre_process hook that invokes #prefetch_if_necessary this happens for the package resource fist, and prefetch_if_necessary invokes resources_by_provider, which caches a hash of all resources in the graph during its evaluation, the user resource generates ssh_authorized_key resources for purging these keys also invoke prefetch_if_necesary, but the result from resources_by_provider is cached and lacks their references no resources are passed to the provider's prefetch method, the provider considers the entities to be unmanaged and the resources are falsely determined to be already absent A workaround may comprise a way to invalidate the cache of the Transaction#resources_by_provider method upon {{eval_generate}ing resources. This needs a decision, though. Add Comment   This message was sent by Atlassian JIRA (v6.1.4#6159-sha1:44eaede) -- 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.