/
utils.go
76 lines (66 loc) · 2.26 KB
/
utils.go
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// This package contains helper functions for OpenstackNodes type CR
// in kupenstack.
package osknode
import (
"context"
"encoding/json"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
ksktypes "github.com/kupenstack/kupenstack/pkg/kupenstack/types/v1alpha1"
)
// get unstructured node list
// get unstructured node // Get
// convert to struct // osknode.AsStruct()
// conver struct to unstructed node // osknode.AsMap()
// Returns list of all OpenstackNode resources as k8s-UnstructuredList-type
func GetList(ctx context.Context, c client.Client) (*unstructured.UnstructuredList, error) {
oskNodeList := &unstructured.UnstructuredList{}
oskNodeList.SetGroupVersionKind(schema.GroupVersionKind{
Group: "cluster.kupenstack.io",
Kind: "OpenstackNodeList",
Version: "v1alpha1",
})
err := c.List(ctx, oskNodeList)
if err != nil {
return nil, err
}
return oskNodeList, nil
}
// Returns OpenstackNode resources with name `NodeName` as k8s-Unstructured-type
func Get(ctx context.Context, c client.Client, name string) (*unstructured.Unstructured, error) {
nodeName := types.NamespacedName{Name: name}
oskNode := &unstructured.Unstructured{}
oskNode.SetGroupVersionKind(schema.GroupVersionKind{
Group: "cluster.kupenstack.io",
Kind: "OpenstackNode",
Version: "v1alpha1",
})
err := c.Get(ctx, nodeName, oskNode)
if err != nil {
return nil, err
}
return oskNode, nil
}
// Takes OpenstackNode as k8s-Unstructured-type and returns it as correesponding struct
func AsStruct(in *unstructured.Unstructured) (*ksktypes.OpenstackNode, error) {
jsonString, err := json.Marshal(in.Object)
if err != nil {
return nil, err
}
out := &ksktypes.OpenstackNode{}
err = json.Unmarshal(jsonString, out)
if err != nil {
return nil, err
}
return out, nil
}
// Todo:
// Takes OpenstackNode as struct and returns it as correesponding map[string]interface{}
// Usage: the reurned map[string]interface{} can be stored back in k8s-unstructured-types
// unstructedtypeNode.Object = osknode.AsMap(mynodestruct)
// client.Update(ctx, &unstructedtypeNode)
//
// func AsMap(in *ksktypes.OpenstackNode) (map[string]interface{}, error) {
// }