Unable to construct api.Node object for kubelet: can't get ip address of node master.example.com: lookup master.example.com on : no such host

openshift首页进不去

启动openshift时报的错，大意是：

无法为kubelet构造api.Node对象：无法获取节点master.example.com的IP地址：

所以就联想到新装的centos，没有在网卡配置文件中配置固定IP

添加IPADDR=192.*.*.*

IP还跟默认分配的保持不变就好。

重新启动openshift，OK。

异常内容：

I0522 00:34:59.046046    6923 endpoints_controller.go:325] Waiting for pods controller to sync, requeuing service default/kubernetes
E0522 00:34:59.098098    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098122    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098128    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098134    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098139    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098144    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098337    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098345    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098351    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098355    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098360    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098364    6923 util.go:45] Metric for replenishment_controller already registered
E0522 00:34:59.098368    6923 util.go:45] Metric for replenishment_controller already registered
I0522 00:34:59.172993    6923 endpoints_controller.go:325] Waiting for pods controller to sync, requeuing service default/kubernetes
I0522 00:34:59.276459    6923 endpoints_controller.go:325] Waiting for pods controller to sync, requeuing service default/kubernetes
I0522 00:34:59.289358    6923 start_master.go:691] Started Origin Controllers
I0522 00:34:59.297654    6923 kubelet.go:1067] Controller attach/detach is disabled for this node; Kubelet will attach and detach volumes
E0522 00:34:59.308466    6923 kubelet.go:1172] Unable to construct api.Node object for kubelet: can't get ip address of node master.example.com: lookup master.example.com on 192.168.238.2:53: no such host
I0522 00:34:59.376810    6923 endpoints_controller.go:325] Waiting for pods controller to sync, requeuing service default/kubernetes
I0522 00:35:00.108732    6923 kubelet.go:1067] Controller attach/detach is disabled for this node; Kubelet will attach and detach volumes
E0522 00:35:00.120079    6923 kubelet.go:1172] Unable to construct api.Node object for kubelet: can't get ip address of node master.example.com: lookup master.example.com on 192.168.238.2:53: no such host
I0522 00:35:01.720788    6923 kubelet.go:1067] Controller attach/detach is disabled for this node; Kubelet will attach and detach volumes
E0522 00:35:01.756366    6923 kubelet.go:1172] Unable to construct api.Node object for kubelet: can't get ip address of node master.example.com: lookup master.example.com on 192.168.238.2:53: no such host
I0522 00:35:04.956605    6923 kubelet.go:1067] Controller attach/detach is disabled for this node; Kubelet will attach and detach volumes
E0522 00:35:04.965966    6923 kubelet.go:1172] Unable to construct api.Node object for kubelet: can't get ip address of node master.example.com: lookup master.example.com on 192.168.238.2:53: no such host
^C2018-05-22 00:35:06.981664 N | osutil: received interrupt signal, shutting down...