Using valuesFrom with multiline string

[michalramus]

Hello,
I am trying to deploy Nextcloud with S3 as primary storage and I want to move S3 configuration with access credentials to the Secret. Unfortunately this part of configuration is not applied.

Helm release:

kind: HelmRelease
metadata:
    name: nextcloud
    namespace: nextcloud
spec:
    timeout: 20m
    chart:
        spec:
            chart: nextcloud
            sourceRef:
                kind: HelmRepository
                name: nextcloud
            version: 5.2.0
    interval: 1m0s
    valuesFrom:
        - kind: Secret
          name: nextcloud-s3-credentials
          valuesKey: credentials
          targetPath: configs.s3.config.php
    values:
        image:
            flavor: fpm
        replicaCount: 1
        nextcloud:
            host: example.com

        nginx:
            enabled: true

        internalDatabase:
            enabled: false
        externalDatabase:
            enabled: true
            type: postgresql
            host: nginx-balancer.demeter.ramus.ovh:5517
            database: nextcloud
            existingSecret:
                enabled: true
                secretName: nextcloud-postgres-credentials
                usernameKey: DB_USERNAME
                passwordKey: DB_PASSWORD

        persistence:
            enabled: true
            existingClaim: nextcloud-volume-claim
            accessMode: ReadWriteMany
            size: 8Gi

        # TODO
        livenessProbe:
            enabled: false
            initialDelaySeconds: 45
            periodSeconds: 15
            timeoutSeconds: 5
            failureThreshold: 100
            successThreshold: 1

        readinessProbe:
            enabled: false
            initialDelaySeconds: 45
            periodSeconds: 15
            timeoutSeconds: 5
            failureThreshold: 100
            successThreshold: 1

Secret

kind: Secret
metadata:
    name: nextcloud-s3-credentials
    namespace: nextcloud
type: Opaque
data:
    credentials: 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

Content of the secret is

"""<?php
             = array (
              'objectstore' => array(
                'class' => '\OC\Files\ObjectStore\S3',
                'arguments' => array(
                  'bucket'     => 'nextcloud',
                  'autocreate' => true,
                  'key'        => 'xxx',
                  'secret'     => 'xxx',
                  'hostname'   => 'example.com',
                  'port'       => 1234,
                  'region'     => 'optional',
                  'use_ssl'    => true,
                  'use_path_style' => true
                )
              )
            );"""

Here is how it should be configured - example from Nextcloud docs:

# For example, to use S3 as primary storage
  # ref: https://docs.nextcloud.com/server/13/admin_manual/configuration_files/primary_storage.html#simple-storage-service-s3
  #
  #  configs:
  #    s3.config.php: |-
  #      <?php
  #      $CONFIG = array (
  #        'objectstore' => array(
  #          'class' => '\\OC\\Files\\ObjectStore\\S3',
  #          'arguments' => array(
  #            'bucket'     => 'my-bucket',
  #            'autocreate' => true,
  #            'key'        => 'xxx',
  #            'secret'     => 'xxx',
  #            'region'     => 'us-east-1',
  #            'use_ssl'    => true
  #          )
  #        )
  #      );