Set the record to the coredns

 1.:53 {
 2    errors
 3    health
 4    kubernetes cluster.local in-addr.arpa ip6.arpa {
 5      pods insecure
 6      fallthrough in-addr.arpa ip6.arpa
 7    }
 8    prometheus :9153
 9    forward . /etc/resolv.conf
10    cache 30
11    loop
12    reload
13    loadbalance
14}
15
16db.example.com.tw:53 {
17    errors
18    cache 30
19    hosts {
20      10.1.2.3 abc.example.com
21      fallthrough
22    }
23    reload
24}

 1.:53 {
 2    errors
 3    health
 4    kubernetes cluster.local in-addr.arpa ip6.arpa {
 5      pods insecure
 6      fallthrough in-addr.arpa ip6.arpa
 7    }
 8    hosts {
 9      127.0.0.1    localhost
10      ::1          localhost
11      10.1.2.3 abc.example.com
12      fallthrough
13    }
14    prometheus :9153
15    forward . /etc/resolv.conf
16    cache 30
17    loop
18    reload
19    loadbalance
20}