Driver owns the network, and there can be multiple drivers that participate in networking to fulfill various deployment and use-case scenarios.
Driver: The driver is responsible for managing the network.Network Controller: The network controller exposes simple APIS for Docker Engine that allocates and manages networks.The above diagram also shows 5 main objects of CNM. Network plugin APIs are used for creating/deleting networks and adding/removing containers from the network. The IPAM plugin APIS can create/delete address pools and allocate/deallocate container IP addresses to add or remove containers from the network.
CNM stores the network configuration in a distributed key-value store such as a console.Īs seen from the above diagram, CNM has interfaces for IPAM and network plugins. The CNM standardizes the steps required to provide this networking. Let's understand the details of this in the following section: What is a Container Network Model (CNM)?Ĭontainer Network Model ( CNM) uses multiple network drivers to provide networking for containers. We have a model named " Container Network Model (CNM)", which supports all the above features.
#Docker network options how to
How to connect the docker container to the network?.Inspect a Docker network - docker network inspect.What are various Network Drivers in it?.And, what is a Container Network Model (CNM)?.Let us begin with the topics that are going to be covered in this article. This article will discuss more on the connection between containers and services. It is called Docker Networking, and as far as this networking is concerned, Docker containers and services need not know that they are deployed on Docker or whether the peers they are connected to are Docker workloads or not. Most of us are aware that Docker containers and services can connect and other non-Docker workloads.