volcano.sh/volcano@v1.9.0/pkg/cli/queue/get.go (about)

     1  /*
     2  Copyright 2019 The Volcano 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 queue
    18  
    19  import (
    20  	"context"
    21  	"fmt"
    22  	"io"
    23  	"os"
    24  
    25  	"github.com/spf13/cobra"
    26  
    27  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    28  
    29  	"volcano.sh/apis/pkg/apis/scheduling/v1beta1"
    30  	"volcano.sh/apis/pkg/client/clientset/versioned"
    31  )
    32  
    33  type getFlags struct {
    34  	commonFlags
    35  
    36  	Name string
    37  }
    38  
    39  var getQueueFlags = &getFlags{}
    40  
    41  // InitGetFlags is used to init all flags.
    42  func InitGetFlags(cmd *cobra.Command) {
    43  	initFlags(cmd, &getQueueFlags.commonFlags)
    44  
    45  	cmd.Flags().StringVarP(&getQueueFlags.Name, "name", "n", "", "the name of queue")
    46  }
    47  
    48  // GetQueue gets a queue.
    49  func GetQueue() error {
    50  	config, err := buildConfig(getQueueFlags.Master, getQueueFlags.Kubeconfig)
    51  	if err != nil {
    52  		return err
    53  	}
    54  
    55  	if getQueueFlags.Name == "" {
    56  		err := fmt.Errorf("name is mandatory to get the particular queue details")
    57  		return err
    58  	}
    59  
    60  	queueClient := versioned.NewForConfigOrDie(config)
    61  	queue, err := queueClient.SchedulingV1beta1().Queues().Get(context.TODO(), getQueueFlags.Name, metav1.GetOptions{})
    62  	if err != nil {
    63  		return err
    64  	}
    65  
    66  	PrintQueue(queue, os.Stdout)
    67  
    68  	return nil
    69  }
    70  
    71  // PrintQueue prints queue information.
    72  func PrintQueue(queue *v1beta1.Queue, writer io.Writer) {
    73  	_, err := fmt.Fprintf(writer, "%-25s%-8s%-8s%-8s%-8s%-8s%-8s\n",
    74  		Name, Weight, State, Inqueue, Pending, Running, Unknown)
    75  	if err != nil {
    76  		fmt.Printf("Failed to print queue command result: %s.\n", err)
    77  	}
    78  	_, err = fmt.Fprintf(writer, "%-25s%-8d%-8s%-8d%-8d%-8d%-8d\n",
    79  		queue.Name, queue.Spec.Weight, queue.Status.State, queue.Status.Inqueue,
    80  		queue.Status.Pending, queue.Status.Running, queue.Status.Unknown)
    81  	if err != nil {
    82  		fmt.Printf("Failed to print queue command result: %s.\n", err)
    83  	}
    84  }