Learning CoreOS

Introduction to Docker networking

There are multiple communication requirements for containers/service as follows. CoreOS and Docker together should provide a mechanism to meet all the following requirements:

• Container–Container communication in the same CoreOS node
• Container to CoreOS host communication
• Container to external world communication
• Container–Container communication in a different CoreOS node

Let us look into how CoreOS provides these functionalities for the docker container in the following sections.

Container–Container communication

This section describes in detail the different mechanisms provided by the CoreOS and Docker/Container technology to provide communication across different instances of Docker. There are multiple ways to provide ...