Kubernetes在执行kubeadm重置后未能为pod设置网络
我使用kubeadm init
来初始化Kubernetes,并且我使用kubeadm reset
重置它时,我发现--pod-network-cidr
是错误的。修正之后我试图用kubeadm
给init Kubernetes又像Kubernetes在执行kubeadm重置后未能为pod设置网络
kubeadm init --use-kubernetes-version v1.5.1 --external-etcd endpoints=http://10.111.125.131:2379 --pod-network-cidr=10.244.0.0/16
然后我得到的节点上一些错误
12月 28 15:30:55 ydtf-node-137 kubelet[13333]: E1228 15:30:55.838700 13333 cni.go:255] Error adding network: no IP addresses available in network: cbr0
12月 28 15:30:55 ydtf-node-137 kubelet[13333]: E1228 15:30:55.838727 13333 cni.go:209] Error while adding to cni network: no IP addresses available in network: cbr0
12月 28 15:30:55 ydtf-node-137 kubelet[13333]: E1228 15:30:55.838781 13333 docker_manager.go:2201] Failed to setup network for pod "test-701078429-tl3j2_default(6945191b-ccce-11e6-b53d-78acc0f9504e)" using network plugins "cni": no IP addresses available in network: cbr0; Skipping pod
12月 28 15:30:56 ydtf-node-137 kubelet[13333]: E1228 15:30:56.205596 13333 pod_workers.go:184] Error syncing pod 6945191b-ccce-11e6-b53d-78acc0f9504e, skipping: failed to "SetupNetwork" for "test-701078429-tl3j2_default" with SetupNetworkError: "Failed to setup network for pod \"test-701078429-tl3j2_default(6945191b-ccce-11e6-b53d-78acc0f9504e)\" using network plugins \"cni\": no IP addresses available in network: cbr0; Skipping pod"
或
Dec 29 10:20:02 ydtf-node-137 kubelet: E1229 10:20:02.065142 22259 pod_workers.go:184] Error syncing pod 235cd9c6-cd6c-11e6-a9cd-78acc0f9504e, skipping: failed to "SetupNetwork" for "test-701078429-zmkdf_def ault" with SetupNetworkError: "Failed to setup network for pod \"test-701078429-zmkdf_default(235cd9c6-cd6c-11e6-a9cd-78acc0f9504e)\" using network plugins \"cni\": \"cni0\" already has an IP address different from 10.244.1.1/24; Skipping pod"
为什么我不能为新豆荚创建一个网络?
顺便说一下,我使用绒布作为网络提供商,它工作正常。
[[email protected] k8s151]# kubectl get pods --all-namespaces -o wide
NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE
default test-701078429-tl3j2 0/1 ContainerCreating 0 2h <none> ydtf-node-137
kube-system dummy-2088944543-hd7b7 1/1 Running 0 2h 10.111.125.131 ydtf-master-131
kube-system kube-apiserver-ydtf-master-131 1/1 Running 7 2h 10.111.125.131 ydtf-master-131
kube-system kube-controller-manager-ydtf-master-131 1/1 Running 0 2h 10.111.125.131 ydtf-master-131
kube-system kube-discovery-1769846148-bjgp8 1/1 Running 0 2h 10.111.125.131 ydtf-master-131
kube-system kube-dns-2924299975-q8x2m 4/4 Running 0 2h 10.244.0.3 ydtf-master-131
kube-system kube-flannel-ds-3fsjh 2/2 Running 0 2h 10.111.125.137 ydtf-node-137
kube-system kube-flannel-ds-89r72 2/2 Running 0 2h 10.111.125.131 ydtf-master-131
kube-system kube-proxy-7w8c4 1/1 Running 0 2h 10.111.125.137 ydtf-node-137
kube-system kube-proxy-jk6z6 1/1 Running 0 2h 10.111.125.131 ydtf-master-131
kube-system kube-scheduler-ydtf-master-131 1/1 Running 0 2h 10.111.125.131 ydtf-master-131
我搞清楚,如果你改变--pod网络,CIDR当你通过kubeadm初始化重新初始化kubernetes,你应该删除一些自动创建的东西,只要按照下面你之前的步骤再次执行kubeadm初始化:
执行Kubeadm在主节点和复位。
执行etcdctl rm - 递归注册表在etcd中重置数据。
- 室射频的/ var/lib中/ CNI上主和节点
- 室射频/运行/绒布上主和节点
- 室射频的/ etc/CNI上主站和节点
- 的ifconfig cni0向下上主和节点
- brctl delbr cni0上主和节点
现在,我kubernets工作正常:)
我也有类似的问题,在这种情况下,修复是对法兰绒荚网络应用到集群:
wget https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
kubectl apply -f kube-flannel.yml
后我有一个问题更改--pod-network-cidr
,join
报告成功,但没有添加节点。 kubeadm reset
和重新加入没有效果。重置后通过apt-get remove kubelet kubeadm kubectl kubernetes-cni
解决,然后码头和/或机器重新启动,然后重新安装,然后再重新安装。