![Stuart Grace](/assets/img/avatar_default.png)
1. Change comments to make it clear that proxy_env_url is used by apt-cacher-ng and must always be set when an http proxy is required. 2. Add keystone hosts to no_proxy list in deployment env vars because os_keystone role tests this addess to check services are up. Change-Id: If147754f3ddd7727f17e8c33e5a0583ab87ffacc