set-apt-proxy 424 Bytes
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#!/bin/sh

set -e

sudo apt-get install -qy netcat-traditional

# apt-cacher-ng running on the host
# 10.0.2.2 = host ip on virtualbox/qemu
# 192.168..122.1 = host ip on default libvirt bridge
# 172.17.42.1 = host ip on default docker bridge
for ip in 10.0.2.2 192.168.122.1 172.17.42.1; do
  if nc -z -w 1 $ip 3142; then
    echo "Acquire::http::Proxy \"http://$ip:3142\";" | sudo tee /etc/apt/apt.conf.d/01proxy
  fi
done