创建flannel网络时,一直卡着不动。
[root@k8s-master1 ~]# kubectl get pod -n kube-system NAME READY STATUS RESTARTS AGE kube-flannel-ds-amd64-96v9n 0/1 Init:0/1 0 7m44s kube-flannel-ds-amd64-nbx8g 0/1 Init:0/1 0 7m44s
查看pod详细信息
[root@k8s-master1 ~]# kubectl describe pod kube-flannel-ds-amd64-96v9n -n kube-system Name: kube-flannel-ds-amd64-96v9n Namespace: kube-system Priority: 0 Node: k8s-node2/10.10.0.246 Start Time: Fri, 29 May 2020 14:58:39 +0800 Labels: app=flannel controller-revision-hash=67f65bfbc7 pod-template-generation=1 tier=node Annotations: <none> Status: Pending IP: 10.10.0.246 IPs: IP: 10.10.0.246 Controlled By: DaemonSet/kube-flannel-ds-amd64 Init Containers: install-cni: Container ID: Image: quay.io/coreos/flannel:v0.11.0-amd64 Image ID: Port: <none> Host Port: <none> Command: cp Args: -f /etc/kube-flannel/cni-conf.json /etc/cni/net.d/10-flannel.conflist State: Waiting Reason: PodInitializing Ready: False Restart Count: 0 Environment: <none> Mounts: /etc/cni/net.d from cni (rw) /etc/kube-flannel/ from flannel-cfg (rw) /var/run/secrets/kubernetes.io/serviceaccount from flannel-token-js9z8 (ro) Containers: kube-flannel: Container ID: Image: quay.io/coreos/flannel:v0.11.0-amd64 Image ID: Port: <none> Host Port: <none> Command: /opt/bin/flanneld Args: --ip-masq --kube-subnet-mgr State: Waiting Reason: PodInitializing Ready: False Restart Count: 0 Limits: cpu: 100m memory: 50Mi Requests: cpu: 100m memory: 50Mi Environment: POD_NAME: kube-flannel-ds-amd64-96v9n (v1:metadata.name) POD_NAMESPACE: kube-system (v1:metadata.namespace) Mounts: /etc/kube-flannel/ from flannel-cfg (rw) /run/flannel from run (rw) /var/run/secrets/kubernetes.io/serviceaccount from flannel-token-js9z8 (ro) Conditions: Type Status Initialized False Ready False ContainersReady False PodScheduled True Volumes: run: Type: HostPath (bare host directory volume) Path: /run/flannel HostPathType: cni: Type: HostPath (bare host directory volume) Path: /etc/cni/net.d HostPathType: flannel-cfg: Type: ConfigMap (a volume populated by a ConfigMap) Name: kube-flannel-cfg Optional: false flannel-token-js9z8: Type: Secret (a volume populated by a Secret) SecretName: flannel-token-js9z8 Optional: false QoS Class: Burstable Node-Selectors: <none> Tolerations: :NoSchedule node.kubernetes.io/disk-pressure:NoSchedule node.kubernetes.io/memory-pressure:NoSchedule node.kubernetes.io/network-unavailable:NoSchedule node.kubernetes.io/not-ready:NoExecute node.kubernetes.io/pid-pressure:NoSchedule node.kubernetes.io/unreachable:NoExecute node.kubernetes.io/unschedulable:NoSchedule Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled <unknown> default-scheduler Successfully assigned kube-system/kube-flannel-ds-amd64-96v9n to k8s-node2 Warning FailedCreatePodSandBox 13s (x16 over 7m50s) kubelet, k8s-node2 Failed create pod sandbox: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) [root@k8s-master1 ~]#
可以看出是不能下载镜像导致
- 下载所需镜像
[root@k8s-node2 ~]# docker pull registry.cn-beijing.aliyuncs.com/zhoujun/pause:3.1 3.1: Pulling from zhoujun/pause 7675586df687: Pull complete Digest: sha256:fcaff905397ba63fd376d0c3019f1f1cb6e7506131389edbcb3d22719f1ae54d Status: Downloaded newer image for registry.cn-beijing.aliyuncs.com/zhoujun/pause:3.1 [root@k8s-node2 ~]# docker tag registry.cn-beijing.aliyuncs.com/zhoujun/pause:3.1 k8s.gcr.io/pause:3.1
- 查看flannel的pod创建情况,等待到所有node节点上的flannel pod都处于running状态后表示cni部署完成
[root@k8s-master1 ~]# kubectl get pods -n kube-system -o wide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES kube-flannel-ds-amd64-96v9n 1/1 Running 0 40m 10.10.0.246 k8s-node2 <none> <none> kube-flannel-ds-amd64-nbx8g 1/1 Running 0 40m 10.10.0.245 k8s-node1 <none> <none>
- 参考地址 https://blog.csdn.net/qq_24923725/article/details/82910793
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