node.go

/*
  Copyright 2022 The Fluid Authors.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/

package kubeclient

import (
	"context"

	corev1 "k8s.io/api/core/v1"

	"k8s.io/apimachinery/pkg/types"
	"sigs.k8s.io/controller-runtime/pkg/client"
)

// GetNode gets the latest node info
func GetNode(client client.Reader, name string) (node *corev1.Node, err error) {
	key := types.NamespacedName{
		Name: name,
	}

	node = &corev1.Node{}

	if err = client.Get(context.TODO(), key, node); err != nil {
		return nil, err
	}
	return node, err
}

// IsReady checks if the node is ready
// If the node is ready,it returns True.Otherwise,it returns False.
func IsReady(node corev1.Node) bool {
	for _, condition := range node.Status.Conditions {
		if condition.Type == corev1.NodeReady {
			return condition.Status == corev1.ConditionTrue
		}
	}
	return false
}