kubeadm部署k8s问题汇总 1.kubectl get cs查看组件状态kube-scheduler和kube-controller-manager显示unhealthy配置文件路径：/etc/kubernetes/manifests/scheduler.conf/etc/kubernetes/manifests/controller-manager.conf去掉--port=0这个设置，然后重启sudo systemctl restart kubelet2.报错open /run/flannel/subnet.env: no such file or directory查看各个节点，包括master 节点是否有/run/flannel/subnet.env，内容应该是类似如下：FLANNEL_NETWORK=10.244.0.0/16FLANNEL_SUBNET=10.244.0.1/24FLANNEL_MTU=1450FLANNEL_IPMASQ=true没有则创建3.no space left on device错误修改虚机启动的引导项 grub 中的cgroup.memory=nokmem，让机器启动时直接禁用 cgroup的 kmem 属性修改/etc/default/grub 为：GRUB_CMDLINE_LINUX="crashkernel=auto net.ifnames=0 biosdevname=0 intel_pstate=disable cgroup.memory=nokmem"生成配置：/usr/sbin/grub2-mkconfig -o /boot/grub2/grub.cfg 路径中可能是grub重启机器：reboot验证：cat /sys/fs/cgroup/memory/kubepods/burstable/pod//memory.kmem.slabinfo 无输出即可。4.解决Google浏览器不能打开kubernetes dashboard方法mkdir key && cd key #生成证书 openssl genrsa -out dashboard.key 2048 openssl req -new -out dashboard.csr -key dashboard.key -subj '/CN=192.168.246.200' openssl x509 -req -in dashboard.csr -signkey dashboard.key -out dashboard.crt #删除原有的证书secret kubectl delete secret kubernetes-dashboard-certs -n kube-system #创建新的证书secret kubectl create secret generic kubernetes-dashboard-certs --from-file=dashboard.key --from-file=dashboard.crt -n kube-system #查看pod kubectl get pod -n kube-system #重启pod kubectl delete pod <pod name> -n kube-system