kubernetes 安装 flannel 提示 pod cidr not assgned 解决方案
flannel启动失败,报错如下
Error registering network: failed to acquire lease: node "k8s-master01" pod cidr not assigned
问题原因
kube-controller-manager 没有给新加入的节点分配IP段.
解决方法:
编辑 master 机器上的 /etc/kubernetes/manifests/kube-controller-manager.yaml
启动文件加上下面两句话,那篇文档没有加,所以报错;下面这个cluster-cidr要和kube-flannel.yml里面的地址一致,要和kube-proxy.config.yaml里面的clusterCIDR一致
--allocate-node-cidrs=true
--cluster-cidr=10.244.0.0/16
command:
- kube-controller-manager
- --authentication-kubeconfig=/etc/kubernetes/controller-manager.conf
- --authorization-kubeconfig=/etc/kubernetes/controller-manager.conf
- --bind-address=127.0.0.1
- --client-ca-file=/etc/kubernetes/pki/ca.crt
- --cluster-signing-cert-file=/etc/kubernetes/pki/ca.crt
- --cluster-signing-key-file=/etc/kubernetes/pki/ca.key
- --controllers=*,bootstrapsigner,tokencleaner
- --kubeconfig=/etc/kubernetes/controller-manager.conf
- --leader-elect=true
- --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.crt
- --root-ca-file=/etc/kubernetes/pki/ca.crt
- --service-account-private-key-file=/etc/kubernetes/pki/sa.key
- --use-service-account-credentials=true
- --allocate-node-cidrs=true
- --cluster-cidr=10.244.0.0/16
然后删除flannel容器或配置文件,重新部署
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