Issue #16185 has been updated by eric sorenson. Status changed from Unreviewed to Investigating Target version set to 3.x
---------------------------------------- Feature #16185: Relationships should support dependency injection https://projects.puppetlabs.com/issues/16185#change-76278 Author: Luke Kanies Status: Investigating Priority: Normal Assignee: Category: Target version: 3.x Affected Puppet version: Keywords: backlog Branch: Currently, relationships are useful for determining dependencies for work ordering, but they have a major limitation: They generally require a human to manage communicating any information that both sides of the relationship need. For instance, if you're building a web service and a database service: db { foo: port => 1433, user => foo, password => abcd1234 } web { foo: dbport => 1433, dbuser => foo, dbpassword => abcd1234, require => DB[foo] } This is redundant. Instead, it should be possible for the user to specify the information once -- in this case, when the database service is configured -- then the relationship, and have Puppet automatically pass the needed information. A key part of delivering this correctly must be that the definition of the db and web services -- that is, the class or defined resource -- does not need to know who will be using its information. One could currently use exported resources to have the db export information, and then the web service import that same information, but in that case, you've hard-coded the web service to require the db service. Instead, we must rely on dependency injection, which allows the user of the web and db resources -- not their developer -- to decide what dependencies they have and where they get their information. -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: http://projects.puppetlabs.com/my/account -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/puppet-bugs?hl=en.
