Model web app doesn't work with custom model

[elsud]

/kind bug

What steps did you take and what happened:
I deployed custom model with KFServing as a step of Kubeflow piplines. As it was custom model I used inferenceservice_yaml instead of framework and model_uri. I had
"""spec:
predictor:
containers:
....."""
in yaml as I saw it in examples for v1beta1 apiVersion. Model was deployed and was working but Model UI couldn't display page with model servers in default namespace due to "ERROR TypeError: Cannot read property 'runtimeVersion' of null". I tried set runtimeVersion but without any luck. As I see Model UI works only with named framework now.

What did you expect to happen:
I expected to use web-app for custom model too.

Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]

Environment:

• Istio Version: istioctl-1.11.2
• Knative Version: 0.24.0
• KFServing Version: 0.6.0
• Kubeflow pipeline version: 1.7.0
• Kfdef:[k8s_istio/istio_dex/gcp_basic_auth/gcp_iap/aws/aws_cognito/ibm]
• Minikube version: 1.22.0
• Kubernetes version: (use kubectl version): Client Version: GitVersion:"v1.22.0", GoVersion:"go1.16.6", Server Version: GitVersion:"v1.21.2", GoVersion:"go1.16.5"
• OS (e.g. from /etc/os-release): Ubuntu 20.04.3 LTS

[markwinter]

I'm working on this currently

#7