Book Image

Ceph Cookbook

Book Image

Ceph Cookbook

Overview of this book

Ceph is a unified, distributed storage system designed for excellent performance, reliability, and scalability. This cutting-edge technology has been transforming the storage industry, and is evolving rapidly as a leader in software-defined storage space, extending full support to cloud platforms such as Openstack and Cloudstack, including virtualization platforms. It is the most popular storage backend for Openstack, public, and private clouds, so is the first choice for a storage solution. Ceph is backed by RedHat and is developed by a thriving open source community of individual developers as well as several companies across the globe. This book takes you from a basic knowledge of Ceph to an expert understanding of the most advanced features, walking you through building up a production-grade Ceph storage cluster and helping you develop all the skills you need to plan, deploy, and effectively manage your Ceph cluster. Beginning with the basics, you’ll create a Ceph cluster, followed by block, object, and file storage provisioning. Next, you’ll get a step-by-step tutorial on integrating it with OpenStack and building a Dropbox-like object storage solution. We’ll also take a look at federated architecture and CephFS, and you’ll dive into Calamari and VSM for monitoring the Ceph environment. You’ll develop expert knowledge on troubleshooting and benchmarking your Ceph storage cluster. Finally, you’ll get to grips with the best practices to operate Ceph in a production environment.
Table of Contents (18 chapters)
Ceph Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Configuring OpenStack as Ceph clients


OpenStack nodes should be configured as Ceph clients in order to access the Ceph cluster. To do this, install Ceph packages on OpenStack nodes and make sure it can access the Ceph cluster.

How to do it…

In this recipe, we are going to configure OpenStack as a Ceph client, which will be later used to configure cinder, glance, and nova:

  1. We will use ceph-node1 to install Ceph binaries on os-node1 using ceph-deploy, as we have done earlier in Chapter 1, Ceph – Introduction and Beyond. To do this, we should set up ssh password-less login to os-node1. The root password is again the same (vagrant):

    $ vagrant ssh ceph-node1
    $ sudo su -
    # ping os-node1 -c 1
    # ssh-copy-id root@os-node1
    
  2. Next, we will install Ceph packages to os-node1 using ceph-deploy:

    # cd /etc/ceph
    # ceph-deploy install os-node1
    
  3. Push the Ceph configuration file, ceph.conf, from ceph-node1 to os-node1. This configuration file helps clients reach the Ceph monitor and OSD machines. Please note that...