kubernetes

安装centos7

iso 安装选择有界面的，安装完之后需要设置网络，需要网络连接正常。

• 停止防火墙
• 安装
• 开启服务

troubleshooter

no API token found for service account default/default

solution

SchedulerPredicates failed due to PersistentVolumeClaim

需要学习k8s中的volume

open /etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file or directory

openssl s_client -showcerts -servername registry.access.redhat.com -connect registry.access.redhat.com:443 </dev/null 2>/dev/null | openssl x509 -text > /etc/rhsm/ca/redhat-uep.pem

kubelet does not have ClusterDNS IP configured and cannot