Question

我似乎无法让节点加入集群。

[discovery] Trying to connect to API Server "10.0.2.15:6443"
[discovery] Created cluster-info discovery client, requesting info from "https://10.0.2.15:6443"
I0702 11:09:08.268102   10342 round_trippers.go:386] curl -k -v -XGET  -H "Accept: application/json, */*" -H "User-Agent: kubeadm/v1.11.0 (linux/amd64) kubernetes/91e7b4f" 'https://10.0.2.15:6443/api/v1/namespaces/kube-public/configmaps/cluster-info'
I0702 11:09:08.268676   10342 round_trippers.go:405] GET https://10.0.2.15:6443/api/v1/namespaces/kube-public/configmaps/cluster-info  in 0 milliseconds
I0702 11:09:08.268873   10342 round_trippers.go:411] Response Headers:
[discovery] Failed to request cluster info, will try again: [Get https://10.0.2.15:6443/api/v1/namespaces/kube-public/configmaps/cluster-info: dial tcp 10.0.2.15:6443: connect: connection refused]

端口似乎已关闭（从节点开始）：

telnet 10.0.2.15 6443
Trying 10.0.2.15...
telnet: Unable to connect to remote host: Connection refused

在母版上：

telnet 10.0.2.15 6443
Trying 10.0.2.15...
Connected to 10.0.2.15.
Escape character is '^]'.
^CConnection closed by foreign host.

这可能是什么原因？

Answer 1

两台机器都是虚拟机，而NAT ip是10.02.15-两台机器都是相同的（它们是独立的）...

叹息...

如果对其他人有帮助，

iptables -t raw -A OUTPUT -p tcp --dport 6443 -j TRACE
iptables -t raw -A PREROUTING -p tcp --dport 6443 -j TRACE
tail -f /var/log/kern.log

Answer 2

如果您正在VM上运行（例如使用vagrant和virtual box），请使用vagrant文件中使用的专用IP运行init命令。因此，如果您在节点上使用join命令，则可以访问它，否则不能。

语法： kubeadm init   --apiserver-advertise-address =私有IP地址

示例：kubeadm init --apiserver-advertise-address = 192.168.33.50

kubernetes master 6443连接被其他主机拒绝

2 个答案: