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The MultiCusterHub operator manages the install of Open Cluster Management (OCM) on RedHat Openshift Container Platform
For steps on how to contribute and test the MultiClusterHub Operator component, see CONTRIBUTING guidelines.
Once installed, the hub operator will monitor changes in the cluster that affect an instance of the multiclusterhub (mch) and reconcile deviations to maintain desired state. To stop the installer from making these changes you can apply an annotation to the mch instance.
kubectl annotate mch <mch-name> mch-pause=trueRemove or edit this annotation to resume installer operations
kubectl annotate mch <mch-name> mch-pause=false --overwriteDeveloper image overrides can be added by specifiying a configmap containing the overrides for the MCH resource. This configmap must be in the same namespace as the MCH resource.
This is done by creating a configmap from a new manifest. A developer may use this to override any 1 or all images.
If overriding individual images, the minimum required parameters required to build the image reference are -
image-nameimage-remoteimage-keyimage-digestorimage-tag, both can optionally be provided, if so theimage-digestwill be preferred.
kubectl create configmap <my-config> --from-file=docs/examples/manifest-oneimage.json # Override 1 image example
kubectl create configmap <my-config> --from-file=docs/examples/manifest-allimages.json # Overriding all images example
kubectl annotate mch <mch-name> --overwrite mch-imageOverridesCM=<my-config> # Provide the configmap as an override to the MCHTo remove this annotation to revert back to the original manifest
kubectl annotate mch <mch-name> mch-imageOverridesCM- --overwrite # Remove annotation
kubectl delete configmap <my-config> # Delete configmapIf editing the configmap directly instead of creating/deleting it each time, an operator reconcile may be necessary in order to get the changes to take effect. This can be done by cycling the MCH Operator pod
kubectl delete pod multiclusterhub-operator-xxxxx-xxxxx