Helm tpl function in configmap for read index.js

Question

How can we read index.js file in configmap with TPL function in Helm. Means how to read below like index.js file.

  exports.CDN_URL = 'http://100.470.255.255/';
  exports.CDN_NAME = 'staticFilesNew';
  exports.REDIS = [
    {
      host: 'redis-{{.Release.Name}}.{{.Release.Namespace}}.svc.cluster.local',
      port: '26379',
    },
  ];

file structure is below

.
├── Chart.yaml
├── templates
│   ├── NOTES.txt
│   ├── _helpers.tpl
│   ├── configmap.yaml
│   ├── deployment.yaml
│   └── service.yaml
└── values
    ├──values.yaml
    ├── index.js

tried with below solution on configmap.yaml but getting error

apiVersion: v1
kind: ConfigMap
metadata:
  name: test_config
data:
    {{- tpl (.Files.Get (printf "values/index.js" .)) . | quote 12 }}

Getting ERROR

Error: YAML parse error on app-name/templates/configmap.yaml: error converting YAML to JSON: yaml: line 6: did not find expected key
helm.go:88: [debug] error converting YAML to JSON: yaml: line 6: did not find expected key

Answer 1

So it works what you are trying but I think you have issues with the indention.

Use nindent to ensure all lines are indented and dont quote the value.

kind: ConfigMap
apiVersion: v1
metadata:
  name: test
  namespace: test
data:
  index.js: | {{- tpl (.Files.Get "values/index.js") $ | nindent 4 }}