Unless you have syntax-aware grep support, I don't see how searching nested key json could be better. But grep is the default installed. Not to mention ad-hoc languages that does not have any IDE support.
$ helm get values -n $NS $DEPLOYMENT -o json | gron | grep resources | gron -u | json-to-yaml.py
elasticsearch:
client:
resources:
limits:
cpu: 3
memory: 4Gi
requests:
cpu: 1
memory: 2Gi
data:
resources:
limits:
cpu: 6
memory: 6Gi
requests:
cpu: 200m
memory: 2Gi
fluentd:
resources:
limits:
memory: 768Mi
requests:
memory: 384Mi
This is self-inflicted.