helm upgrade elasticsearch elastic/elasticsearch -f ./elasticsearch values.yaml

Error: failed to parse ./elasticsearch_values.yaml: error converting YAML to JSON: yaml: line 2: did not find expected key

elasticsearch_values.yaml
extraVolumes:
   - name: MyExtraVolume
  #   emptyDir: {}

extraVolumeMounts:
   - name: MyExtraVolume
     mountPath: /usr/share/extras
  #   readOnly: true

values.yaml

See also

• helm show [ chart | all | crds | values | readme ], helm show --help
• helm upgrade [ --reuse-values | --atomic | --debug | --force | --reuse-values | --reset-values | --verify ], helm install, --help