Mit Desai created YUNIKORN-1856:
-----------------------------------
Summary: Pod creation fails in certain cases when
generateUniqueAppId is enabled
Key: YUNIKORN-1856
URL: https://issues.apache.org/jira/browse/YUNIKORN-1856
Project: Apache YuniKorn
Issue Type: Bug
Components: shim - kubernetes
Affects Versions: 1.3.0
Reporter: Mit Desai
Assignee: Mit Desai
As part of YUNIKORN-1273 new functionality was added to generate unique
application ids.
A unique appId is generated based on the podUid and the namespace name. We used
podUID instead of other options like timestamp and random hash, as regenerating
the appId with the podUID during the recovery would generate the same appId.
But in certain cases, when the request reaches the admission controller, the
podUID is not available and the request would fail due to an invalid label
value.
Example pod that fails with this error:
{noformat}
apiVersion: v1
kind: Pod
metadata:
name: sleepy
spec:
containers:
- name: sleepy
image: sleepy:0.1.0{noformat}
{noformat}
kubectl apply -f sleepypod.yaml
{noformat}
Error:
{noformat}
The Pod "sleepy" is invalid: metadata.labels: Invalid value: "default-": a
valid label must be an empty string or consist of alphanumeric characters, '-',
'_' or '.', and must start and end with an alphanumeric character (e.g.
'MyValue', or 'my_value', or '12345', regex used for validation is
'(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])?')
{noformat}
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