k8 by example -- straight to the point, simple execution.
$ kubectl run --image=appsoa/docker-alpine-nmap --rm -i -t nm -- -Pn -p9200,9300 elasticsearch.es elasticsearch-discovery.es
Starting Nmap 7.40 ( https://nmap.org ) at 2018-02-03 16:54 UTC
Nmap scan report for elasticsearch.es (10.15.248.94)
Host is up (0.0013s latency).
rDNS record for 10.15.248.94: elasticsearch.es.svc.cluster.local
PORT STATE SERVICE
9200/tcp open wap-wsp
9300/tcp filtered vrace
Nmap scan report for elasticsearch-discovery.es (10.15.252.251)
Host is up (0.00018s latency).
rDNS record for 10.15.252.251: elasticsearch-discovery.es.svc.cluster.local
PORT STATE SERVICE
9200/tcp filtered wap-wsp
9300/tcp open vrace
Nmap done: 2 IP addresses (2 hosts up) scanned in 1.41 seconds
[matthew@centos-1 ~]$ docker run --rm -it appsoa/docker-alpine-nmap -Pn -p80,443 google.com
Starting Nmap 7.40 ( https://nmap.org ) at 2018-02-03 16:47 UTC
Nmap scan report for google.com (209.85.147.139)
Host is up (0.0015s latency).
rDNS record for 209.85.147.139: jg-in-f139.1e100.net
PORT STATE SERVICE
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 0.28 seconds| Port | Server | Protocol | Description |
|---|---|---|---|
| 22 | sshd | TCP | Secure Shell (SSH) |
| 25 | SMTP | TCP | Simple Mail Transfer Protocol (SMTP) |
| 53 | named | TCP/UDP | Domain Name System (DNS) |
| 3306 | mysqld | TCP | mysql server |
| 3307 | mysqld | TCP | mysql server (TLS) |
| 27017 | mongod | TCP | default mongod instances. |
| 27018 | mongod | TCP | when running with --shardsvr |
| 27019 | mongod | TCP | when running with --configsvr |
http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xml