regression: lxc container apt proxy config has no setting for https

[Sidnei da Silva]

Prior to merging of the ubuntu-cloud-image lxc template switch, the apt proxy settings inside the container would be set to:

Acquire::http { Proxy "http://10.0.3.1:3142"; };
Acquire::https { Proxy "false"; };

After the change, the settings are now:

Acquire::HTTP::Proxy "http://10.0.3.1:3142";

Which causes a 403 when proxying to a private PPA (https://private-ppa.launchpad.net) since apt-cacher-ng is not configured to proxy those URLs.

[Kapil Thangavelu (hazmat)]

local provider now relies on cloud-init's apt proxy support, where this issue is bug:1057195