Verified with 4.6.0-0.nightly-2021-03-01-051748
While cluster installs, start a loop to create and delete a service account. Eventually, the cluster is installed successfully w/o IAM error.
In one terminal, create and delete a service account
$ while true; do gcloud iam service-accounts create yangyang-bz --display-name="yangyang-bz"; sleep 1; gcloud projects add-iam-policy-binding openshift-qe --member=serviceAccount:firstname.lastname@example.org --role=roles/compute.instanceAdmin; sleep 2; gcloud projects remove-iam-policy-binding openshift-qe --member=serviceAccount:email@example.com --role=roles/compute.instanceAdmin; sleep 1; echo 'Y' | gcloud iam service-accounts delete firstname.lastname@example.org; done
In another terminal, create cluster:
$ openshift-install create cluster
Moving it to verified state.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (OpenShift Container Platform 4.6.20 bug fix update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.