keda doesn't support env resolution from pod fields

[genadyk]

I see "Error getting scalers error resolving secrets for deployment: cannot resolve env K8S_NODE_NAME to a value. fieldRef and resourceFieldRef env are skipped" errors in KEDA logs.
By looking at the code it looks like env resolution doesn't support my configuration.
Example of container env section:

spec:
      containers:
      - env:
        - name: K8S_NODE_NAME
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: spec.nodeName
        - name: K8S_POD_NAME
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: metadata.name
        - name: K8S_NAMESPACE
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: metadata.namespace

I think KEDA shouldn't fail for env it can't resolve if it's not being used in trigger definition.

[keikumata]

Any news on this? I'm hitting this issue as well

[SubX7]

same here with datadog's host's IP value:

      env:
        - name: DD_AGENT_HOST
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: status.hostIP

the error msg is mentioned at line 527:
https://github.com/kedacore/keda/blob/master/pkg/handler/scale_handler.go

[ahmelsayed]

should be resolved by #404. Thanks @eashi!