[kibana] Error when adding kibana-keystore as k8s secret mount

[JanKowalik]

Chart version:
7.2.0
Kubernetes version:
v0.6.1
Kubernetes provider: E.g. GKE (Google Kubernetes Engine)
k3s
Helm Version:
2.14.1

Describe the bug:
I generate kibana manifests using helm and then apply them to my k3s cluster.
My kibana values are attached together with a manifest produced by the helm chart

Kibana-keystore was created within a docker container using the same version of Kibana image. It was filled with elasticsearch.username and elasticsearch.password

A secret was created using the below command:
kubectl create secret generic kibana-keystore --from-file=./kibana-keystore/kibana.keystore

After applying the secret and the manifest to kubernetes cluster kibana pod shows following error:

Configuring logger failed: { Error: EISDIR: illegal operation on a directory, read
    at Object.readSync (fs.js:494:3)
    at tryReadSync (fs.js:333:20)
    at readFileSync (fs.js:370:19)
    at Keystore.load (/usr/share/kibana/src/server/keystore/keystore.js:97:45)
    at new Keystore (/usr/share/kibana/src/server/keystore/keystore.js:46:10)
    at readKeystore (/usr/share/kibana/src/cli/serve/read_keystore.js:40:20)
    at applyConfigOverrides (/usr/share/kibana/src/cli/serve/serve.js:186:41)
    at applyConfigOverrides (/usr/share/kibana/src/cli/serve/serve.js:50:42)
    at config_1.RawConfigService.rawConfig (/usr/share/kibana/src/core/server/bootstrap.js:33:134)
    at MapSubscriber.RawConfigService.config$.rawConfigFromFile$.pipe.operators_1.map.rawConfig [as project] (/usr/share/kibana/src/core/server/config/raw_config_service.js:41:24) errno: -21, syscall: 'read', code: 'EISDIR' }

 FATAL  Error: EISDIR: illegal operation on a directory, read

This is probably related/similar to #90

[Crazybus]

I have opened a fix in #230. The problem was that the subPath key was being ignored. This is implemented in the Elasticsearch chart but not in the Kibana chart. Can you try out that branch and see if it is working for you now?

Error: EISDIR: illegal operation on a directory, read

Because subPath was being ignored the keystore was actually mounted at /usr/share/kibana/data/kibana.keystore/kibana.keystore instead.

[JanKowalik]

Good stuff. It works.
Weird cause I thought I had tried to add the subPath before, as I noticed it is missing. I guess I had not actually done that.

Thanks