Operating system

Ubuntu 24.10

Kluctl Version

2.25.1 - controller

Kubernetes Version

v1.31.5

kubectl Version

v1.31

Bug description

The kluctl gitops diff command ends up in a error when a kluctlDeployment is create with a name more then 63 Characters.
This happening because the controller can not create a result-secret as it reuse the name of the deployment for a label of the result-secret.
Names of resources and label keys/values are not compatible types and we need some sort of "type-conversion". see: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/

I think the biggest difference we have to care about are:

• Length:
• • Name: 253 chars
• • label-value: 63 chars
• For some cases label-values should not start with numbers

Steps to reproduce

1. Create a kluctlDeployment with a name more than 63 charecters
2. execute kluctl gitops diff --namespace --name
3. expecting error in controller log

Relevant log output

{
  "level": "error",
  "ts": "2025-03-04T06:46:13Z",
  "msg": "Writing validate result failed",
  "controller": "kluctldeployment",
  "controllerGroup": "gitops.kluctl.io",
  "controllerKind": "KluctlDeployment",
  "KluctlDeployment": {
    "name": "cloud-services-backend-third-party-api-documentation-third-party",
    "namespace": "staging-third-party-api"
  },
  "namespace": "staging-third-party-api",
  "name": "cloud-services-backend-third-party-api-documentation-third-party",
  "reconcileID": "490995ec-724f-43ba-b7c0-ba0c1cca10ca",
  "error": "Secret \"vr-documentation-fa4aebd0-5592-40e6-8553-15384d4cfda9\" is invalid: metadata.labels: Invalid value: \"cloud-services-backend-third-party-api-documentation-third-party\": must be no more than 63 characters",
  "stacktrace": ""
}