[Bug]: Traefik HelmChart valuesContent formatting

[gthieleb]

Issue Description

As identified in PR #1644, the Traefik HelmChart manifest has formatting issues with the valuesContent field. While the YAML is valid, the formatting is broken, making it difficult to read and modify.

Tofu Version

OpenTofu v1.9.0
on linux_amd64
+ provider registry.opentofu.org/1password/onepassword v2.1.2
+ provider registry.opentofu.org/hashicorp/cloudinit v2.3.5
+ provider registry.opentofu.org/hashicorp/local v2.5.2
+ provider registry.opentofu.org/hashicorp/null v3.2.3
+ provider registry.opentofu.org/hashicorp/random v3.6.3
+ provider registry.opentofu.org/hashicorp/tls v4.0.6
+ provider registry.opentofu.org/hetznercloud/hcloud v1.49.1
+ provider registry.opentofu.org/integrations/github v6.5.0
+ provider registry.opentofu.org/tenstad/remote v0.1.3

Kube.tf file

module "kube-hetzner" {
  source = "kube-hetzner/kube-hetzner/hcloud"
  #version = "v2.16.1"
  version = "2.14.5"

  providers = {
    hcloud = hcloud
  }

  hcloud_token    = module.onepass_hcloud["hcloud_kubernetes"].credential
  ssh_public_key  = var.ssh_public_key != "" ? file(var.ssh_public_key) : module.ssh.ssh_public_key
  ssh_private_key = var.ssh_private_key != "" ? file(var.ssh_private_key) : module.ssh.ssh_private_key
  ssh_port        = 2222

  # k3s
  initial_k3s_channel = var.initial_k3s_channel

  # node pools
  control_plane_nodepools = var.control_plane_nodepools
  agent_nodepools         = var.agent_nodepools

  # load balancer
  cluster_name        = var.cluster_name
  base_domain         = var.base_domain
  additional_tls_sans = var.additional_tls_sans
  lb_hostname         = var.lb_hostname

  # traefik
  traefik_version          = var.traefik_version
  traefik_additional_ports = var.traefik_additional_ports

  # network
  enable_wireguard              = true
  cni_plugin                    = "cilium"
  cilium_routing_mode           = "native"
  cilium_egress_gateway_enabled = true
  cilium_version                = "1.14.4"
  restrict_outbound_traffic     = false

  # storage
  enable_local_storage = true

  # auto upgrades
  automatically_upgrade_os  = false

Current Behavior

The valuesContent field in the Traefik HelmChart manifest is not properly formatted, with line breaks and indentation appearing incorrectly when viewed with kubectl get helmcharts.helm.cattle.io -n kube-system traefik -oyaml.

Example of current output:

  valuesContent: "image:\n  tag: \ndeployment:\n  replicas: 3\nglobalArguments: []\nservice:\n
    \ enabled: true\n  type: LoadBalancer\n  annotations:\n    \"load-balancer.hetzner.cloud/name\":
    \"staging-traefik\"\n    \"load-balancer.hetzner.cloud/use-private-ip\": \"true\"\n
    \   \"load-balancer.hetzner.cloud/disable-private-ingress\": \"true\"\n    \"load-balancer.hetzner.cloud/disable-public-network\":
    \"false\"\n    \"load-balancer.hetzner.cloud/ipv6-disabled\": \"false\"\n    \"load-balancer.hetzner.cloud/location\":
    \"fsn1\"\n    \"load-balancer.hetzner.cloud/type\": \"lb11\"\n    \"load-balancer.hetzner.cloud/uses-proxyprotocol\":
    \"true\"\n    \"load-balancer.hetzner.cloud/algorithm-type\": \"round_robin\"\n
    \   \"load-balancer.hetzner.cloud/health-check-interval\": \"15s\"\n    \"load-balancer.hetzner.cloud/health-check-timeout\":
    \"10s\"\n    \"load-balancer.hetzner.cloud/health-check-retries\": \"3\"\n    \"load-balancer.hetzner.cloud/hostname\":
    \"lb.staging.example.com\"\nports:\n  web:\n    redirections:\n      entryPoint:\n
    \       to: websecure\n        scheme: https\n        permanent: true\n    proxyProtocol:\n
    \     trustedIPs:\n        - 127.0.0.1/32\n        - 10.0.0.0/8\n    forwardedHeaders:\n
    \     trustedIPs:\n        - 127.0.0.1/32\n        - 10.0.0.0/8\n  websecure:\n
    \   proxyProtocol:\n      trustedIPs:\n        - 127.0.0.1/32\n        - 10.0.0.0/8\n
    \   forwardedHeaders:\n      trustedIPs:\n        - 127.0.0.1/32\n        - 10.0.0.0/8\n
    \ cnpg:\n    port: 54333\n    expose:\n      default: true\n    exposedPort: 54333\n
    \   protocol: TCP\n    proxyProtocol:\n      trustedIPs:\n        - 127.0.0.1/32\n
    \       - 10.0.0.0/8\n    forwardedHeaders:\n      trustedIPs:\n        - 127.0.0.1/32\n
    \       - 10.0.0.0/8\npodDisruptionBudget:\n  enabled: true\n  maxUnavailable:
    33%\nadditionalArguments:\n  - \"--providers.kubernetesingress.ingressendpoint.publishedservice=traefik/traefik\"\nresources:\n
    \ requests:\n    cpu: \"100m\"\n    memory: \"50Mi\"\n  limits:\n    cpu: \"300m\"\n
    \   memory: \"150Mi\"\nautoscaling:\n  enabled: true\n  minReplicas: 3\n  maxReplicas:
    10"
  version: 34.3.0```

## Expected Behavior

The `valuesContent` field should be properly formatted with consistent indentation and line breaks, making it easier to read and modify.

## Impact

This formatting issue makes it difficult to enable additional features like metrics for Traefik, as the configuration is hard to read and modify.

## Possible Solution

Review and fix the template generation for Traefik values to ensure proper YAML formatting is preserved when the HelmChart resource is created.