kubebuilder:pruning:PreserveUnknownFields Spec

[zhujintao]

What broke? What's expected?

deploys_types.go

// +kubebuilder:pruning:PreserveUnknownFields
type DeploysSpec struct {
	// INSERT ADDITIONAL SPEC FIELDS - desired state of cluster
	// Important: Run "make" to regenerate code after modifying this file

	AppList []string                       `json:"appsList,omitempty"`
}

···

deploy.yaml

apiVersion: cy-sys.cn/v1beta1
kind: Deploys
metadata:
  name: cybsprod
  namespace: cybs-prod
spec:
  appsList:
  - t1
  - t2
  tmpPath: /tmp

kubectl get deploy -o yaml

  spec:
      appsList:
        - t1
        - t2
      tmpPath: /tmp
}

kubebuilder:pruning:PreserveUnknownFields DeploysSpec,

Reconcile logic how to read tmpPath ?

Reproducing this issue

kubebuilder:pruning:PreserveUnknownFields DeploysSpec

Reconcile logic how to read tmpPath ?

KubeBuilder (CLI) Version

Version: main.version{KubeBuilderVersion:"3.7.0", KubernetesVendor:"1.24.1", GitCommit:"3bfc84ec8767fa760d1771ce7a0cb05a9a8f6286", BuildDate:"2022-09-20T17:21:57Z", GoOs:"linux", GoArch:"amd64"}

PROJECT version

No response

Plugin versions

No response

Other versions

No response

Extra Labels

No response

[varshaprasad96]

@zhujintao Can you please elaborate on the issue faced. If the preserveUnknownField is not being applied to a specified path, you can check the crd if x-kubernetes-preserve-unknown-fields: true is being set in the specific field. For example:

type Spec struct {
	// +kubebuilder:pruning:PreserveUnknownFields
	Deployed   string `json:"deployed,omitempty"`
}

should generate:

deployed: 
  items:
    type: string
    x-kubernetes-preserve-unknown-fields: true

Also if the particular object is being applied, you can use spec.deployed to query the value of the field.

[zhujintao]

@varshaprasad96 tks. I've found the answer:

var deploySpec  unstructured.Unstructured

deploySpec.SetGroupVersionKind(schema.GroupVersionKind{Group: "cy-sys.cn", Kind: "Deploys", Version: "v1beta1"})

if err := r.Get(ctx, req.NamespacedName, &deploySpec); err != nil {
         return ctrl.Result{}, client.IgnoreNotFound(err)
}

spec := deploySpec.Object["spec"].(map[string]interface{})
fmt.Println(spec["tmpPath"])