github.com/kubewharf/katalyst-core@v0.5.3/pkg/util/resource-recommend/resource/k8s_resource.go (about)

     1  /*
     2  Copyright 2022 The Katalyst Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package resource
    18  
    19  import (
    20  	"context"
    21  	"encoding/json"
    22  
    23  	"github.com/pkg/errors"
    24  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    25  	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
    26  	k8stypes "k8s.io/apimachinery/pkg/types"
    27  	"k8s.io/klog/v2"
    28  	k8sclient "sigs.k8s.io/controller-runtime/pkg/client"
    29  
    30  	"github.com/kubewharf/katalyst-api/pkg/apis/recommendation/v1alpha1"
    31  )
    32  
    33  func ConvertAndGetResource(ctx context.Context, client k8sclient.Client, namespace string, targetRef v1alpha1.CrossVersionObjectReference) (*unstructured.Unstructured, error) {
    34  	klog.V(5).Infof("Get resource in", "targetRef", targetRef, "namespace", namespace)
    35  	obj := &unstructured.Unstructured{}
    36  	obj.SetAPIVersion(targetRef.APIVersion)
    37  	obj.SetKind(targetRef.Kind)
    38  	if err := client.Get(ctx, k8stypes.NamespacedName{Namespace: namespace, Name: targetRef.Name}, obj); err != nil {
    39  		return nil, err
    40  	}
    41  	return obj, nil
    42  }
    43  
    44  func GetAllClaimedContainers(controller *unstructured.Unstructured) ([]string, error) {
    45  	klog.V(5).InfoS("Get all controller claimed containers", "controller", controller)
    46  	templateSpec, found, err := unstructured.NestedMap(controller.Object, "spec", "template", "spec")
    47  	if err != nil {
    48  		return nil, errors.Wrapf(err, "unstructured.NestedMap err")
    49  	}
    50  	if !found {
    51  		return nil, errors.Errorf("spec.template.spec not found in the controller")
    52  	}
    53  	containersList, found, err := unstructured.NestedSlice(templateSpec, "containers")
    54  	if err != nil {
    55  		return nil, errors.Wrapf(err, "unstructured.NestedSlice err")
    56  	}
    57  	if !found {
    58  		return nil, errors.Errorf("failure to find containers in the controller")
    59  	}
    60  
    61  	containerNames := make([]string, 0, len(containersList))
    62  	for _, container := range containersList {
    63  		containerMap, ok := container.(map[string]interface{})
    64  		if !ok {
    65  			klog.Errorf("Unable to convert container:%v to map[string]interface{}", container)
    66  			continue
    67  		}
    68  		name, found, err := unstructured.NestedString(containerMap, "name")
    69  		if err != nil || !found {
    70  			klog.Errorf("Container name not found or get container name err:%v in the containerMap %v", err, containerMap)
    71  			continue
    72  		}
    73  		containerNames = append(containerNames, name)
    74  	}
    75  	return containerNames, nil
    76  }
    77  
    78  type patchRecord struct {
    79  	Op    string      `json:"op,inline"`
    80  	Path  string      `json:"path,inline"`
    81  	Value interface{} `json:"value"`
    82  }
    83  
    84  func PatchUpdateResourceRecommend(client k8sclient.Client, namespaceName k8stypes.NamespacedName,
    85  	resourceRecommend *v1alpha1.ResourceRecommend,
    86  ) error {
    87  	obj := &v1alpha1.ResourceRecommend{
    88  		ObjectMeta: metav1.ObjectMeta{
    89  			Name:      namespaceName.Name,
    90  			Namespace: namespaceName.Namespace,
    91  		},
    92  	}
    93  	patches := []patchRecord{{
    94  		Op:    "replace",
    95  		Path:  "/status",
    96  		Value: resourceRecommend.Status,
    97  	}}
    98  
    99  	patch, err := json.Marshal(patches)
   100  	if err != nil {
   101  		return errors.Wrapf(err, "failed to Marshal resourceRecommend: %+v", resourceRecommend)
   102  	}
   103  	patchDate := k8sclient.RawPatch(k8stypes.JSONPatchType, patch)
   104  	err = client.Status().Patch(context.TODO(), obj, patchDate)
   105  	if err != nil {
   106  		return errors.Wrapf(err, "failed to patch resource")
   107  	}
   108  	return nil
   109  }