apt-http-proxy: http://squid.internal:3128
apt-https-proxy: http://squid.internal:3128
apt-no-proxy: localhost,127.0.0.1,ppa.launchpad.net,launchpad.net
juju-http-proxy: http://squid.internal:3128
juju-https-proxy: http://squid.internal:3128
juju-no-proxy: localhost,127.0.0.1,0.0.0.0,ppa.launchpad.net,launchpad.net,10.0.8.0/24,10.246.153.0/24
snap-http-proxy: http://squid.internal:3128
snap-https-proxy: http://squid.internal:3128