kubeadm安装报错

1、安装报文件存在报错

/etc/kubernetes/pki/ca.crt already exists
/etc/kubernetes/kubelet.conf already exists

[root@com10-81 ~]# kubeadm join --token xxxx 10.4.37.167:6443 --discovery-token-ca-cert-hash sha256:xxxxxx
[preflight] Running pre-flight checks.
    [WARNING SystemVerification]: docker version is greater than the most recently validated version. Docker version: 17.12.1-ce. Max validated version: 17.03
    [WARNING FileExisting-crictl]: crictl not found in system path
[preflight] Some fatal errors occurred:
    [ERROR Port-10250]: Port 10250 is in use
    [ERROR FileAvailable--etc-kubernetes-pki-ca.crt]: /etc/kubernetes/pki/ca.crt already exists
    [ERROR FileAvailable--etc-kubernetes-kubelet.conf]: /etc/kubernetes/kubelet.conf already exists

2、解决思路

1、先执行 kubeadm reset，重新初始化节点配置：
kubeadm reset
2、再次执行join  kubeadm join --token xxxxx master_ip:6443 --discovery-token-ca-cert-hash sha256:xxxx