![]() ![]() Setting a class no_noop parameter to true overrides any noop setting either client or server side.Server side noop mode if set to true, overrides any client setting.Some basic principles have to be considered in order to design them in the most effective way: Puppet code deployment and application workflowsĮnabling noop mode on some clients, the most important ones, or the whole production ones, allows us to implement some sophisticated and safe workflows for the testing and the deployment of the Puppet code and data that manage our nodes. In order to set no_noop mode for a class, use hiera data like: This allows us to have some server where Puppet runs in noop mode but have still some resources always applied. ![]() By default no_noop is set to false and nothing changes in terms of noop management. Some of the profiles used in the PSICK module have the no_noop parameter: if set to true all the resources of the class are enforced and are applied whatever are the noop settings (either client or server side). In some cases we might need to enforce the applications of the resources of some classes in every case, whatever is the noop mode. In the above cases, be sure to have a normal real Puppet run on the exporting nodes before doing a Puppet run in the collecting ones.This basically happens whenever you export concat fragments and where you export files in directories which are completely managed and where files not explicitly managed by Puppet are purged. Identify the cases where missing exported resources can actually change some configurations (rather than just not managing for a single Puppet run a resource previously configured).This doesn’t happen when you run Puppet with noop mode client side. When you run puppet on the load balancer which collects the concat resources previously exported (with noop set server side), Puppet will rebuild the target configuration without the concat fragment where noop is true.When server side noop mode is used, this concat resource is exported with noop = true You run puppet in normal mode on a node which exports a concat resource used by a load balancer.There’s a small but rather important thing to consider when using the noop() function: since it works by adding the noop metaparameter to a resource, and can override a normal puppet run without noop set client-side, it can have unpredictable effects when you are working with exported resources which, when missing, alter the configuration of the node which collects them. Important caveat with server-side noop mode Still, checking report you will be able to notice that actually no resource is really applied and you should see eventual changes in the noop column.įinal result is the same (no resources are really applied) but they are shown differently on PE console. Note that this is not the typical way to manage noop mode in Puppet and when using the Puppet Enterprise console you will see nodes where noop is applied with this approach undef the “Nodes run in enforcement” group (and not in noop mode) in the dashboard. ![]()
0 Comments
Leave a Reply. |