修改coredns configmap
$ kubectl edit cm -n kube-system coredns
apiVersion: v1
data:
Corefile: |
.:53 {
errors
health {
lameduck 5s
}
hosts {
192.168.99.181 k8s.lvzhenjiang.com
fallthrough
}
ready
kubernetes cluster.local in-addr.arpa ip6.arpa {
pods insecure
fallthrough in-addr.arpa ip6.arpa
ttl 30
}
prometheus :9153
forward . /etc/resolv.conf
cache 30
loop
reload
loadbalance
}
kind: ConfigMap
metadata:
name: coredns
namespace: kube-system
重启coredns服务后，进行测试！
$ k exec busybox-86dbf5b9d8-tx8j8 -- ping k8s.lvzhenjiang.com
PING k8s.lvzhenjiang.com (192.168.99.181): 56 data bytes
64 bytes from 192.168.99.181: seq=0 ttl=63 time=0.536 ms
64 bytes from 192.168.99.181: seq=1 ttl=63 time=0.690 ms
64 bytes from 192.168.99.181: seq=2 ttl=63 time=2.023 ms
64 bytes from 192.168.99.181: seq=3 ttl=63 time=1.240 ms