github.com/sealerio/sealer@v0.11.1-0.20240507115618-f4f89c5853ae/pkg/checker/node_checker.go (about)

     1  // Copyright © 2021 Alibaba Group Holding Ltd.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package checker
    16  
    17  import (
    18  	"fmt"
    19  	"text/template"
    20  
    21  	corev1 "k8s.io/api/core/v1"
    22  
    23  	"github.com/sirupsen/logrus"
    24  
    25  	"github.com/sealerio/sealer/common"
    26  	"github.com/sealerio/sealer/pkg/client/k8s"
    27  	v2 "github.com/sealerio/sealer/types/api/v2"
    28  )
    29  
    30  const (
    31  	ReadyNodeStatus    = "Ready"
    32  	NotReadyNodeStatus = "NotReady"
    33  )
    34  
    35  type NodeChecker struct {
    36  	client *k8s.Client
    37  }
    38  
    39  type NodeClusterStatus struct {
    40  	ReadyCount       uint32
    41  	NotReadyCount    uint32
    42  	NodeCount        uint32
    43  	NotReadyNodeList []string
    44  }
    45  
    46  func (n *NodeChecker) Check(cluster *v2.Cluster, phase string) error {
    47  	if phase != PhasePost {
    48  		return nil
    49  	}
    50  	// checker if all the node is ready
    51  	c, err := k8s.NewK8sClient()
    52  	if err != nil {
    53  		return err
    54  	}
    55  	n.client = c
    56  	nodes, err := n.client.ListNodes()
    57  	if err != nil {
    58  		return err
    59  	}
    60  	var notReadyNodeList []string
    61  	var readyCount uint32
    62  	var nodeCount uint32
    63  	var notReadyCount uint32
    64  	for _, node := range nodes.Items {
    65  		nodeIP, nodePhase := getNodeStatus(node)
    66  		if nodePhase != ReadyNodeStatus {
    67  			notReadyCount++
    68  			notReadyNodeList = append(notReadyNodeList, nodeIP)
    69  		} else {
    70  			readyCount++
    71  		}
    72  	}
    73  	nodeCount = notReadyCount + readyCount
    74  	nodeClusterStatus := NodeClusterStatus{
    75  		ReadyCount:       readyCount,
    76  		NotReadyCount:    notReadyCount,
    77  		NodeCount:        nodeCount,
    78  		NotReadyNodeList: notReadyNodeList,
    79  	}
    80  	err = n.Output(nodeClusterStatus)
    81  	if err != nil {
    82  		return err
    83  	}
    84  	if notReadyCount != 0 {
    85  		return fmt.Errorf("check node %v not ready", notReadyNodeList)
    86  	}
    87  	return nil
    88  }
    89  
    90  func (n *NodeChecker) Output(nodeCLusterStatus NodeClusterStatus) error {
    91  	//t1, err := template.ParseFiles("templates/node_checker.tpl")
    92  	t := template.New("node_checker")
    93  	t, err := t.Parse(
    94  		`Cluster Node Status
    95    ReadyNode: {{ .ReadyCount }}/{{ .NodeCount }}
    96    {{ if (gt .NotReadyCount 0 ) -}}
    97    Not Ready Node List:
    98      {{- range .NotReadyNodeList }}
    99      NodeIP: {{ . }}
   100      {{- end }}
   101    {{ end }}
   102  `)
   103  	if err != nil {
   104  		panic(err)
   105  	}
   106  	t = template.Must(t, err)
   107  	err = t.Execute(common.StdOut, nodeCLusterStatus)
   108  	if err != nil {
   109  		logrus.Errorf("failed to execute node checkers template: %s", err)
   110  		return err
   111  	}
   112  	return nil
   113  }
   114  
   115  func getNodeStatus(node corev1.Node) (IP string, Phase string) {
   116  	if len(node.Status.Addresses) < 1 {
   117  		return "", ""
   118  	}
   119  	for _, address := range node.Status.Addresses {
   120  		if address.Type == "InternalIP" {
   121  			IP = address.Address
   122  		}
   123  	}
   124  	if IP == "" {
   125  		IP = node.Status.Addresses[0].Address
   126  	}
   127  	Phase = NotReadyNodeStatus
   128  	for _, condition := range node.Status.Conditions {
   129  		if condition.Type == ReadyNodeStatus {
   130  			if condition.Status == "True" {
   131  				Phase = ReadyNodeStatus
   132  			} else {
   133  				Phase = NotReadyNodeStatus
   134  			}
   135  		}
   136  	}
   137  	return IP, Phase
   138  }
   139  
   140  func NewNodeChecker() Interface {
   141  	return &NodeChecker{}
   142  }