LLFourn

# So you want to pipe shell scripts to docker. But docker runs the container's command as PID 1. 
# Linux doesn't set up signal handlers for PID 1.
# This gives you the following problems:
# 1. The script can't kill itself:
echo 'kill $$; echo "Still alive"' | docker run -i --rm alpine sh 
# 2. You can't kill the script from outside with a normal kill:
echo "sleep 1000" | docker run -i --rm alpine sh & sleep 1 && kill $!
docker ps # it didn't die

#==== Solving problem 1 ====

kotakanbe

package main

import (
	"net"
	"os/exec"

	"github.com/k0kubun/pp"
)

func Hosts(cidr string) ([]string, error) {