title: Helm Error converting YAML to JSON: yaml: line 20: did not find expected key
body: <p>I don't really know what is the error here, is a simple helm deploy with a _helpers.tpl, it doesn't make sense and is probably a stupid mistake, the code:</p>
  <p>deploy.yaml</p>
  <pre class="lang-yaml prettyprint-override"><code>apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
  kind: Deployment
  {{ include &quot;metadata.name&quot; . }}-deploy
  spec:
    selector:
      matchLabels:
        app: nginx
    replicas: 2 # tells deployment to run 2 pods matching the template
    template:
      metadata:
        labels:
          app: nginx
      spec:
        containers:
        - name: nginx
          image: nginx:1.14.2
          ports:
          - containerPort: 80
          vars: {{- include &quot;envs.var&quot; .Values.secret.data }}
  </code></pre>
  <p>_helpers.tpl</p>
  <pre class="lang-yaml prettyprint-override"><code>{{- define &quot;envs.var&quot;}}
  {{- range $key := . }}
  - name: {{ $key | upper | quote}}
    valueFrom:
      secretKeyRef:
        key: {{ $key | lower }}
        name: {{ $key }}-auth
  {{- end }}
  {{- end }}
  </code></pre>
  <p>values.yaml</p>
  <pre class="lang-yaml prettyprint-override"><code>secret:
    data:
      username: root
      password: test
  </code></pre>
  <p>the error</p>
  <pre><code>Error: YAML parse error on mychart/templates/deploy.yaml: error converting YAML to JSON: yaml: line 21: did not find expected key
  </code></pre>