Multi Host : Docker Networking

Say we have two hosts, how docker containers can connect to each other in this Docker cluster if both interfaces:

  • docker0
  • docker_gwbridge

have the same IP address in each host ?

  • Why can't I extend docker postgres image to create extra database and user
  • how to solve the certification issues in puppet
  • why ansible always replaces double quotes with single quotes in templates?
  • Docker Hub Private Repo Login. More secure way?
  • Accessing host usb device in docker for windows
  • Error accessing cgi script inside Docker container, Operation not permitted: Couldn't bind unix domain socket
  • How to get docker 'objects' completion on mintty-bash from git for windows
  • what is 'z' flag in docker container's volumes-from option?
  • How to setup continuous integration - deployment: bitbucket, drone.io, docker hub, swarm?
  • Serving react app with NGINX on /admin instead of / loads files but does not render application
  • Expose Docker container to public ip
  • How can I run container with process.argv in Docker?
  • One Solution collect form web for “Multi Host : Docker Networking”

    Those networks are bridge networks that only exist on a single docker host. Containers assigned to only these networks will not be able to talk to containers on other hosts.

    Multi-host networking is done with an “overlay” network and will show up with that driver instead of “bridge”. The overlay driver relies on a global key/value store, such as consul, etcd, and it’s now built into swarm with the raft backend. Assigning IP’s is done by referencing this global key/value store so they should always be unique.

    For more details, see: https://docs.docker.com/engine/userguide/networking/get-started-overlay/

    Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.