Implements two flavor of library support for service-discovery:
- GetConnectionString (arbitrary strings) augmenting existing
functionality already in asp.net core
- GetServiceUri (uris) can be combined
from a protocol/host/port triple
See the **extensive** doc `service_discovery.md` that is filled out in this PR. That documents pretty much everything about how this works now.
* Added container proxy for talking to the host
- This change introduces a container proxy which makes it possible for docker containers can talk to host services using container networking. These proxies will not show up in the dashboard as they are "infrastructure" containers.
- Added Private and NetworkAlias to DockerRunInfo but did not expose these configuration.
- All container communication is done using host names.
- Fix host shutdown again
- Bind to all interfaces on linux
Ryan Nowak
David Fowler
Justin Kotalik