Multiarch Tuning Operator v1.1.1 does not consider field .spec.registrySources.containerRuntimeSearchRegistries in the config.openshift.io/Image CR when workload manifests do not specify a registry URL, such as:

image: mongo:5.0.20

 
With MTO deployed on the cluster, such workload fails because MTO tries to get the image metadata from {{{}docker.io. Here's the annotation added to the pod by MTO:}}

annotations: multiarch.openshift.io/image-inspect-error: 'reading manifest 5.0.20 in docker.io/library/mongo: toomanyrequests: You have reached your unauthenticated pull rate limit. https://www.docker.com/increase-rate-limit'