# CoreDns部署
```
Coredns的安装
root@ubuntu:~# wget https://github.com/coredns/coredns/releases/download/v1.2.1/coredns_1.2.1_linux_amd64.tgz
root@ubuntu:~# tar xf coredns_1.2.1_linux_amd64.tgz
root@ubuntu:~# chmod +x coredns && mv coredns /opt/kubernetes/bin/
配置corefile配置文件
root@ubuntu:~# vim /opt/kubernetes/cfg/Corefile
.:53 {
kubernetes {{ CLUSTER_DNS_DOMAIN }} {
resyncperiod 10s
endpoint http://127.0.0.1:8080
pods verified
endpoint_pod_names
upstream /etc/resolv.conf
}
health :18080
log
errors
prometheus :9153
proxy . /etc/resolv.conf
cache 30
reload 10s
}
配置服务启动配置文件
root@ubuntu:~# vim /lib/systemd/system/coredns.service
Description=coredns: The Coredns Server
Documentation=https://coredns.io/
[Service]
ExecStart=/opt/kubernetes/bin/coredns -conf /opt/kubernetes/cfg/Corefile
Restart=always
StartLimitInterval=0
RestartSec=10
[Install]
WantedBy=multi-user.target
root@ubuntu:~# systemctl start coredns
```
