kubectl spy -n kube-system kuboard-74678d5599-hbzqw
    loading spy pod…
    If you don’t see a command prompt, try pressing enter.
    / # ip a
    1: lo: mtu 65536 qdisc noqueue qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    valid_lft forever preferred_lft forever
    2: tunl0@NONE: mtu 1480 qdisc noop qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
    4: eth0@if21: mtu 1440 qdisc noqueue
    link/ether 72:63:a0:43:58:23 brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.35/32 scope global eth0
    valid_lft forever preferred_lft forever
    / #