How do I load multiple templated config files into a helm chart?

Question

So I am trying to build a helm chart.

in my templates file I\'ve got a file like:

apiVersion: v1
kind: ConfigMap
metadata:
  name: config-map
data:
{         


        

Answer 1

include all files from directory config-dir/, with {{ range ..:

my-configmap.yaml:

apiVersion: v1
kind: ConfigMap
metadata:
  name: my-configmap
data:
  {{- $files := .Files }}
  {{- range $key, $value := .Files }}
  {{- if hasPrefix "config-dir/" $key }} {{/* only when in config-dir/ */}}
  {{ $key | trimPrefix "config-dir/" }}: {{ $files.Get $key | quote }} {{/* adapt $key as desired */}}
  {{- end }}
  {{- end }}

my-deployment.yaml

apiVersion: apps/v1
kind: Deployment
...
spec:
  template:
    ...
    spec:
      containers:
        - name: my-pod-container
          ...
          volumeMounts:
            - name: my-volume
              mountPath: /config
              readOnly: true # is RO anyway for configMap
      volumes:
        - name: my-volume
          configMap:
            name: my-configmap
            # defaultMode: 0555 # mode rx for all