Making Connections: Showing Resource Relationships in OpenShift 4.6
October 29, 2020 | by
As you know, a Kubernetes cluster can contain many inter-resource relationships, including resources that are managed by another resource. Modifying a resource, just to find your changes undone, can be a frustrating process. OpenShift is here to help.
To further convey these relationships, OpenShift 4.6 now shows which resources are managed by a particular operator. It also shows a list of resources that relate to cluster operators, which can be useful for troubleshooting. Ready to explore these new features? Let's dive in.
Resources Managed by Operators
Resources that are managed by a particular operand from an operator are now marked with a Managed by label under their name, to show the relationship. The label also includes a link to the operand for quick navigation to edit that managing resource where you can be sure your changes will stick.
If you find yourself making changes to a resource that is managed, a warning message will appear when the changes are saved. This serves as a friendly reminder to edit the managing resource so that your changes don't become overwritten.
Also, if a managed resource is deleted, an additional warning in the confirmation message appears. This message reminds you that your changes can be overwritten if the managed resource isn't edited. In this case, your resource could reappear if changes are not made to the managing resource.
Cluster Operator Related Objects
Sometimes you may want to know what resources are associated with a particular cluster operator, perhaps for troubleshooting an underlying issue.
You can access this information from the Cluster Settings page under the Cluster Operators tab.
When viewing the details of a cluster operator, you'll now see a new Related Objects tab, which lists out any resources related to that cluster operator. If you ever need to troubleshoot a cluster operator issue, these resources and their logs are a great place to start.
This is just the start of how OpenShift can help you manage your cluster resource relationships. In the future, look for more enhancements around conveying “Managed by” relationships, like relating pods to other workloads.
If you are up for trying out these new features, or if you are just getting started with OpenShift, visit Try OpenShift to get instant access to a cluster.