k8s service创建之后无法访问集群内本节点的其他pod k8sservice

1.问题
deploy.yaml

apiVersion: apps/v1 kind: Deployment metadata: name: service-deployment namespace: dev spec: replicas: 3 selector: matchLabels: app: nginx-pod template: metadata: labels: app: nginx-pod spec: containers: - name: nginx image: nginx imagePullPolicy: IfNotPresent ports: - containerPort: 80

service.yaml

apiVersion: v1 kind: Service metadata: name: service-type namespace: dev spec: selector: app: nginx-pod clusterIP: 10.1.97.97 type: ClusterIP ports: - port: 80 #service端口 targetPort: 80 #pod端口

创建之后信息

[root@node1 ~]# kubectl describe svc -n dev Name:service-type Namespace:dev Labels: Annotations: Selector:app=nginx-pod Type:ClusterIP IP Families: IP:10.1.97.97 IPs:10.1.97.97 Port:80/TCP TargetPort:80/TCP Endpoints:10.244.1.44:80,10.244.1.45:80,10.244.2.46:80 Session Affinity:None Events:

【k8s service创建之后无法访问集群内本节点的其他pod】pod信息

[root@node1 ~]# kubectl get pod -n dev -o wide NAMEREADYSTATUSRESTARTSAGEIPNODENOMINATED NODEREADINESS GATES service-deployment-848c68b85-8jvcv1/1Running090m10.244.1.44node2 service-deployment-848c68b85-m62qb1/1Running090m10.244.1.45node2 service-deployment-848c68b85-qwz5w1/1Running090m10.244.2.46node3

在node2节点上访问node3上的pod 10.244.2.46:80 不通

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2.解决过程
找到flannel配置名

[root@node2 docker]# kubectl get pod -n kube-system NAMEREADYSTATUSRESTARTSAGE coredns-7f89b7bc75-jvfhw1/1Running46d12h coredns-7f89b7bc75-x6kqb1/1Running46d12h etcd-node11/1Running46d12h kube-apiserver-node11/1Running46d12h kube-controller-manager-node11/1Running86d12h -- kube-flannel-ds-bqs551/1Running018h kube-flannel-ds-czjxv1/1Running56d12h kube-flannel-ds-mbgm41/1Running46d12h --- kube-proxy-2tn4g1/1Running0132m kube-proxy-4tc4f1/1Running0132m kube-proxy-bwsgv1/1Running0132m kube-scheduler-node11/1Running86d12h

获取flannel的配置名称

kubectl edit pod -n kube-system kube-flannel-ds-bqs55

找到flannel配置名

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修改配置,kube-flannel-ds为flannel配置文件名称

kubectl edit daemonset kube-flannel-ds -n kube-system

指定网卡为第二块网卡，可以通过ifconfig来进行查看

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找到所有kube-flannelpod

[root@node2 docker]# kubectl get pod -n kube-system | grep kube-flan kube-flannel-ds-b7qfq1/1Running029s kube-flannel-ds-w9hts1/1Running017s kube-flannel-ds-zpzmb0/1Init:0/101s [root@node2 docker]# kubectl delete pod -n kube-system kube-flannel-ds-b7qfq kube-flannel-ds-w9hts kube-flannel-ds-zpzmb pod "kube-flannel-ds-b7qfq" deleted pod "kube-flannel-ds-w9hts" deleted pod "kube-flannel-ds-zpzmb" deleted

删除之后，重新创建即可正常访问
参考 https://www.jianshu.com/p/ed1...