CatalogSource

A CatalogSource represents a store of metadata that OLM can query to discover and install operators and their dependencies.

There are three primary types of CatalogSource(spec.sourceType):

• grpc with an image reference: OLM will pull the image and run a pod that has an api endpoint that can be queried for the metadata in the store
• grpc with an address field: OLM will attempt to contact the grpc api at the given address. This should not be used in most cases.
• internal or configmap: OLM will parse the configmap’s data and spin up a pod that can serve the grpc api over it.

Example - OperatorHub.io

apiVersion: operators.coreos.com/v1alpha1 kind: CatalogSource metadata:  name: operatorhubio-catalog  namespace: olm spec:  sourceType: grpc  image: quay.io/operatorhubio/catalog:latest  displayName: Community Operators  publisher: OperatorHub.io 

This defines a CatalogSource for OperatorHub.io’s content. The name of the CatalogSource is used as input to a Subscription, which tells OLM where to look to find a requested operator:

apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata:  name: my-operator  namespace: olm spec:  channel: stable  name: my-operator  source: operatorhubio-catalog