k8s集群内配置coredns解析

编辑coredns的confmap

kubectl -n kube-system edit configmaps coredns

apiVersion: v1
data:
  Corefile: |
    .:53 {
        errors
        health
        ready
# 添加下面
        log
        rewrite stop {
          name regex git.boge.com gitlab.gitlab-ver130806.svc.cluster.local
# 将域名解析到默认的svc域名
          answer name gitlab.gitlab-ver130806.svc.cluster.local git.boge.com
# 反向解析
        }
# 
        kubernetes cluster.local in-addr.arpa ip6.arpa {

          pods verified
          fallthrough in-addr.arpa ip6.arpa
        }
        autopath @kubernetes
        prometheus :9153
        forward . /etc/resolv.conf
        cache 30
        loop
        reload
        loadbalance
    }
kind: ConfigMap
metadata:
  name: coredns
  namespace: kube-system