joeblackwaslike / container-utils Goto Github PK

Hello, Joe.

This function presume that the main network interface named eth0, but modern distros pretty often use different naming, so using this function causes problems (e.g. Kamailio pod doesn't start).
Unfortunately, have no idea how to make it more versatile, since each distro tries to use their own scheme.

My Debian 9.2 named the main interface as enp2s0

function get-ipv4 {
local interface="${1:-eth0}"
if linux::cmd::exists 'ip'; then
ip -o -f inet addr show $interface | sed 's/.inet (.)/.*/\1/'
elif linux::cmd::exists 'ifconfig'; then
ifconfig $interface | grep 'inet ' | cut -d':' -f2 | awk '{print $1}'
elif linux::cmd::exists 'hostname'; then
hostname -i | head -1
fi
}