### In my laptop .bashrc:
# no proxy for my eth0 ip address and the lxd subnet
export no_proxy=`echo localhost 10.245.67.130 10.44.139.{1..255} | sed 's/ /,/g'`
export http_proxy=http://squid.internal:3128
export https_proxy=http://squid.internal:3128
### From a term on my laptop:
$ juju bootstrap \
--config http-proxy=$http_proxy \
--config https-proxy=$https_proxy \
--config no-proxy=$no_proxy \
--model-default http-proxy=$http_proxy \
--model-default https-proxy=$https_proxy \
--model-default no-proxy=$no_proxy localhost