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Understanding Contrail Containers

 

Some subsystems of Contrail Networking solution are delivered as Docker containers.

Contrail Containers

The following are key features of the new architecture of Contrail containers:

  • All of the Contrail containers are multiprocess Docker containers.

  • Each container has an INI-based configuration file that has the configurations for all of the applications running in that container.

  • Each container is self-contained, with minimal external orchestration needs.

  • A single tool, Ansible, is used for all levels of building, deploying, and provisioning the containers. The Ansible code for the Contrail system is named contrail-ansible and kept in a separate repository. The Contrail Ansible code is responsible for all aspects of Contrail container build, deployment, and basic container orchestration.