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Containers in OpenStack

You're reading from   Containers in OpenStack Leverage OpenStack services to make the most of Docker, Kubernetes and Mesos

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Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781788394383
Length 176 pages
Edition 1st Edition
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Authors (2):
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Pradeep Kumar Singh Pradeep Kumar Singh
Author Profile Icon Pradeep Kumar Singh
Pradeep Kumar Singh
Madhuri Kumari Madhuri Kumari
Author Profile Icon Madhuri Kumari
Madhuri Kumari
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Toc

Table of Contents (11) Chapters Close

Preface 1. Working with Containers FREE CHAPTER 2. Working with Container Orchestration Engines 3. OpenStack Architecture 4. Containerization in OpenStack 5. Magnum – COE Management in OpenStack 6. Zun – Container Management in OpenStack 7. Kuryr – Container Plugin for OpenStack Networking 8. Murano – Containerized Application Deployment on OpenStack 9. Kolla – Containerized Deployment of OpenStack 10. Best Practices for Containers and OpenStack

Walk-through


Kuryr exists in each host that runs containers and serves APIs required for the libnetwork remote network driver.

The following are the steps which are executed to create a container network provided by the neutron:

  1. A user sends a request to libnetwork to create a Docker network with the network driver specifier as Kuryr. The following example creates a Docker network named bar:
$ sudo docker network create --driver=kuryr --ipam-driver=kuryr --
        subnet 10.0.0.0/16 --gateway 10.0.0.1 --ip-range 10.0.0.0/24 bar
  1. libnetwork makes API calls to the Kuryr plugin to create the network
  2. Kuryr forwards the call to the Neutron and Neutron creates the network with the input data provided by Kuryr
  3. Upon receiving a response from the neutron, it prepares the output and sends it to libnetwork
  4. libnetwork stores the response to its key/value datastore backend
  5. The user can then launch a container using the network created previously:
$ sudo docker run --net=bar -itd --name=nginx-container nginx
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