container-inherit-properties doesn't support apt-http-proxy

[Nobuto Murata]

By default with MAAS provider, Juju nodes as physical hosts have a maas hostname as a apt-http-proxy through curtin.

$ apt-config dump | grep Acquire::http::Proxy
Acquire::http::Proxy "http://my-range.maas-internal:8000/";
Acquire::http::Proxy::127.0.0.1 "DIRECT";
Acquire::http::Proxy::::1 "DIRECT";
Acquire::http::Proxy::localhost "DIRECT";

$ cat /etc/apt/apt.conf.d/90curtin-aptproxy
Acquire::http::Proxy "http://my-range.maas-internal:8000/";

However, Juju created LXD containers do not have those inherited. So those containers would not get a benefit of cached packages in MAAS squid to speed up the deployment process.

[container] $ apt-config dump | grep Acquire::http::Proxy
Acquire::http::Proxy "";
Acquire::http::Proxy::127.0.0.1 "DIRECT";
Acquire::http::Proxy::::1 "DIRECT";
Acquire::http::Proxy::localhost "DIRECT";

It would be nice if container-inherit-properties covers those proxy configurations too.

$ juju version
2.6.10-bionic-amd64

$ juju model-config container-inherit-properties=apt-proxy
ERROR container-inherit-properties: apt-proxy not allowed

$ juju model-config container-inherit-properties=apt-http-proxy
ERROR container-inherit-properties: apt-http-proxy not allowed

A workaround is to set apt-http-proxy in a model or model-defaults by hand explicitly. So both physical hosts and LXD containers will use the same value by the overridden model config/default.

[Canonical Juju QA Bot (juju-qa-bot)]

This bug has not been updated in 2 years, so we're marking it Low importance. If you believe this is incorrect, please update the importance.