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We document that an macvlan network with no parent interface is equivalent to a '--internal' network. But, in this case, an macvlan network was still configured with a gateway. So, DNS proxying would be enabled in the internal resolver (and, if the host's resolver was on a localhost address, requests to external resolvers from the host's network namespace would succeed). This change disables configuration of a gateway for a macvlan Endpoint if no parent interface is specified. (Note if a parent interface with no external network is supplied as '-o parent=<dummy>', the gateway will still be set up. Documentation will need to be updated to note that '--internal' should be used to prevent DNS request forwarding in this case.) Signed-off-by: Rob Murray <rob.murray@docker.com>
libnetwork - networking for containers
Libnetwork provides a native Go implementation for connecting containers
The goal of libnetwork is to deliver a robust Container Network Model that provides a consistent programming interface and the required network abstractions for applications.
Design
Please refer to the design for more information.
Using libnetwork
There are many networking solutions available to suit a broad range of use-cases. libnetwork uses a driver / plugin model to support all of these solutions while abstracting the complexity of the driver implementations by exposing a simple and consistent Network Model to users.
Contributing
Want to hack on libnetwork? Docker's contributions guidelines apply.
Copyright and license
Code and documentation copyright 2015 Docker, inc. Code released under the Apache 2.0 license. Docs released under Creative commons.