Cannot Pull Image When using ImageStream name in DeploymentConfig as image value, the actual image in the Pod gets resolved to docker.io instead of internal registry.

    OCP 4.12

    Always

    1. Deploy an ImageStream pointing to an existing image in internal mirror registry

~~~
apiVersion: image.openshift.io/v1
kind: ImageStream
metadata:
  name: oraclelinux
  namespace: default
spec:
  lookupPolicy:
    local: true
  tags:
  - annotations: null
    from:
      kind: DockerImage
      name: <internal_mirrorresgistry>/os/oraclelinux:9
    generation: 20
    importPolicy:
      importMode: Legacy
    name: "9"
    referencePolicy:
      type: Source
~~~

 2. Deploy a DeploymentConfig pointing to the IS from step 1

~~~
oc -n default create deploy oraclelinux --image=oraclelinux:9 
~~~

3. Resulting pod fails with ImagePull error. oraclelinux:9 image pull is failing, the cluster will behave as if it is pulling these images from DockerHub (docker.io), which is not where the images are stored.
.    

~~~
Failed to pull image "oraclelinux:9": reading manifest latest in docker.io/library/$IMAGESTREAM_NAME: requested access to the resource is denied
~~~ 

~~~
requested access to the resource is denied
~~~ 

Pod pulls the image referenced by ImageStream from internal registry

 Similar BUG https://bugzilla.redhat.com/show_bug.cgi?id=2000216 has been already reported and fixed in 4.10.3 errata