wrong type for value; expected string; got []interface {}

Chart version: 7.9.3 Kubernetes version: 19.4 Kubernetes provider: E.g. GKE (Google Kubernetes Engine) Bare Metal Helm Version: 3.4

Describe the bug: So correct me if I’m wrong (I haven’t had to do this before, and I don’t believe it’s a bug, I’m just stupid) However, I pull down/Download helm chart 7.9.3. I make changes to the logstash values.yaml, then try to deploy, and I get the following error.

helm install logstash . Error: template: logstash/templates/statefulset.yaml:52:27: executing "logstash/templates/statefulset.yaml" at <include (print .Template.BasePath "/configmap-config.yaml") .>: error calling include: template: logstash/templates/configmap-config.yaml:15:7: executing "logstash/templates/configmap-config.yaml" at <$config>: wrong type for value; expected string; got []interface {}

Steps to reproduce:

1. vim helm-charts-7.9.3/logstash/values.yaml
2. Add the following:

logstashConfig:
  logstash.yml: |
  http.host: "0.0.0.0"
  xpack.monitoring.elasticsearch.hosts: [ "http://elasticsearch-master:9200" ]
# Allows you to add any pipeline files in /usr/share/logstash/pipeline/
### ***warn*** there is a hardcoded logstash.conf in the image, override it first
logstashPipeline:
  logstash.conf: |
    input {
      kafka {
        bootstrap_servers=> "kafka-cp-kafka:9092"
        topics => ["systems_logs"]
        tags => ["systems_logs"]
      }
    }
    input {
      kafka {
        bootstrap_servers => "kafka-cp-kafka:9092"
        topics => ["api_request_timings"]
        tags => ["api_request_timings"]
      }
    }
    filter {
      json {
        source => "message"
        remove_field => ["message"]
      }
    }
    output {
      if "systems_logs" in [tags] {
        elasticsearch {
          hosts => [http://elasticsearch-master:9200"]
          index => "systems_logs-%{+YYY.MM.dd}"
        }
      }
      else if "api_request_timings" in [tags] {
        elasticsearch {
          hosts => [http://elasticsearch-master:9200"]
          index => "api_request_timings-%{+YYYY.MM.dd}"
        }
      }
    }````

`volumeClaimTemplate:
    accessModes: [ "ReadWriteOnce" ]
    storageClassName: "rook-ceph-block"
    resources:
      requests:
        storage: 1Gi`

`service:                                                                                                                                                                                                                                                                                                                       annotations: {}                                                                                                                                                                                                                                                                                                              type: ClusterIP                                                                                                                                                                                                                                                                                                              ports:                                                                                                                                                                                                                                                                                                                         name: beats
    port: 5044                                                                                                                                                                                                                                                                                                                     protocol: TCP
    targetPort: 5044
    name: http
    port: 8080
    protocol: TCP
    targetPort: 8080`

`  persistence:
    enabled: true`
3. then run `helm install logstash ~/helm-charts-7.9.3/logstash`

**Expected behavior:**
No error, deploy logstash.

**Provide logs and/or server output (if relevant):**
This is all I ever get, even from Debug.
`Error: template: logstash/templates/statefulset.yaml:52:27: executing "logstash/templates/statefulset.yaml" at <include (print .Template.BasePath "/configmap-config.yaml") .>: error calling include: template: logstash/templates/configmap-config.yaml:15:7: executing "logstash/templates/configmap-config.yaml" at <$config>: wrong type for value; expected string; got []interface {}`

**Any additional context:**
Like I said, I am probably retarded, but I've looked at the values from both the statefulset.yaml and the configmap-config.yaml, and everything seems to be correct when trying to pass to the tpl $config, but I don't know.

[jeff-vanslyke]

Well, like I said. I’m retarded because that worked. I appreciate you putting up with me on this.

[jmlrt]

I’m closing the issue as it seem fixed now, don’t hesitate to comment it if you have any question.