部署k8s遇到的问题

kubeadm 部署k8s 遇到的问题

• systemd: kubelet.service failed（需要关闭交换分区，查看系统日志）
• Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of “crypto/rsa: verification error” while trying to verify candidate authority certificate “kubernetes”)（kubeadm reset 未将之前节点清除干净，需手动清理）
• error: unable to recognize “calico.yaml”: no matches for kind “PodDisruptionBudget” in version “policy/v1”（calico的版本和k8s的版本不相符，查看calico官网中推荐的版本再做尝试）
• Back-off restarting failed container
• invalid argument “{{ metrics_server_min_cluster_size }}” for “–minClusterSize” flag: strconv.ParseUint: parsing “{{ metrics_server_min_cluster_size }}”: invalid syntax(注释metrics-server-deployment.yaml中command的部分参数)
• error: metrics not available yet（检查metric-server-deployment.yaml中定义的配置以及响应pod的日志）

二进制部署k8s遇到的问题

• K8S生成etcd证书时报错 “code“:5200,“message“:“could not read configuration file“
• This certificate lacks a “hosts” field. This makes it unsuitable for websites（可以忽略）
• rejected connection from “10.11.129.12:57508” (error “remote error: tls: bad certificate”, ServerName “”)
• etcd: error verifying flags, error unmarshaling JSON: while decoding JSON: json: cannot unmarshal string into Go struct field configYAML.log-output of type []string. See ‘etcd --help’
• Keepalived_vrrp[10239]: (VI_1): received an invalid passwd! （主要是keepalived的配置问题-vrrp strict）
• kube-apiserver: I0116 23:18:36.063581 9837 controlbuf.go:508] transport: loopyWriter.run returning. connection error: desc = “transport is closing” (kube-apiserver的日志，关闭链接，可忽略)
• error retrieving resource lock kube-system/kube-controller-manager: the server rejected our request for an unknown reason (get endpoints kube-controller-manager)
• kube-scheduler[1052]: invalid configuration: [unable to read client-cert /etc/kubernetes/pki/client.crt
• kube-scheduler no configuration has been provided, try setting KUBERNETES_MASTER environment（执行kubectl的时候报错，未找到admin.kubeconfig文件）
• failed to run Kubelet: misconfiguration: kubelet cgroup driver: “systemd“ is different from docker(修改kubelet-conf.yaml中指定的cgroupdriver)
• failed to retrieve nvidia-container-runtime version docker(distribution=$(. /etc/os-release;echo $ID$VERSION_ID)
  curl -s -L https://nvidia.github.io/nvidia-container-runtime/$distribution/nvidia-container-runtime.repo | sudo tee /etc/yum.repos.d/nvidia-container-runtime.repo\yum install nvidia-container-runtime -y)
• kubelet.go:2183] node “master02” not found (查看磁盘空间)