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DevOps & Automation · Advanced

Operator Lifecycle Manager (OLM)

A component that installs, updates, and manages the lifecycle of Kubernetes operators, central to OpenShift.

Definition

OLM uses CatalogSources, Subscriptions, and InstallPlans; update channels control upgrades. OperatorHub in the OpenShift console is its user interface.

Example

A Subscription to the stable channel automatically upgrades the OpenShift GitOps operator.

Exam tip

Install operators through OperatorHub/OLM rather than raw manifests on OpenShift.

Related terms