红帽全球峰会2.2.2. Object ownership for cluster extensions
In Operator Lifecycle Manager (OLM) v1, a Kubernetes object can only be owned by a single ClusterExtension object at a time. This ensures that objects within an OpenShift Container Platform cluster are managed consistently and prevents conflicts between multiple cluster extensions attempting to control the same object.
2.2.2.1. Single ownership
The core ownership principle enforced by OLM v1 is that each object can only have one cluster extension as its owner. This prevents overlapping or conflicting management by multiple cluster extensions, ensuring that each object is uniquely associated with only one bundle.
Implications of single ownership
Bundles that provide a
CustomResourceDefinition(CRD) object can only be installed once.Bundles provide CRDs, which are part of a
ClusterExtensionobject. This means you can install a bundle only once in a cluster. Attempting to install another bundle that provides the same CRD results in failure, as each custom resource can have only one cluster extension as its owner.Cluster extensions cannot share objects.
The single-owner policy of OLM v1 means that cluster extensions cannot share ownership of any objects. If one cluster extension manages a specific object, such as a
Deployment,CustomResourceDefinition, orServiceobject, another cluster extension cannot claim ownership of the same object. Any attempt to do so is blocked by OLM v1.
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