Book Image

Ceph: Designing and Implementing Scalable Storage Systems

By : Michael Hackett, Vikhyat Umrao, Karan Singh, Nick Fisk, Anthony D'Atri, Vaibhav Bhembre
Book Image

Ceph: Designing and Implementing Scalable Storage Systems

By: Michael Hackett, Vikhyat Umrao, Karan Singh, Nick Fisk, Anthony D'Atri, Vaibhav Bhembre

Overview of this book

This Learning Path takes you through the basics of Ceph all the way to gaining in-depth understanding of its advanced features. You’ll gather skills to plan, deploy, and manage your Ceph cluster. After an introduction to the Ceph architecture and its core projects, you’ll be able to set up a Ceph cluster and learn how to monitor its health, improve its performance, and troubleshoot any issues. By following the step-by-step approach of this Learning Path, you’ll learn how Ceph integrates with OpenStack, Glance, Manila, Swift, and Cinder. With knowledge of federated architecture and CephFS, you’ll use Calamari and VSM to monitor the Ceph environment. In the upcoming chapters, you’ll study the key areas of Ceph, including BlueStore, erasure coding, and cache tiering. More specifically, you’ll discover what they can do for your storage system. In the concluding chapters, you will develop applications that use Librados and distributed computations with shared object classes, and see how Ceph and its supporting infrastructure can be optimized. By the end of this Learning Path, you'll have the practical knowledge of operating Ceph in a production environment. This Learning Path includes content from the following Packt products: • Ceph Cookbook by Michael Hackett, Vikhyat Umrao and Karan Singh • Mastering Ceph by Nick Fisk • Learning Ceph, Second Edition by Anthony D'Atri, Vaibhav Bhembre and Karan Singh
Table of Contents (27 chapters)
Title Page
About Packt
Contributors
Preface
Index

Creating the radosgw user


To use the Ceph object storage, we should create an initial Ceph object gateway user for the S3 interface and then create a subuser for the Swift interface.

How to do it…

Following steps will help you to create radosgw user:

  1. Make sure that the rgw-node1 is able to access the Ceph cluster:
        # ceph -s -k /var/lib/ceph/radosgw/ceph-rgw.rgw-node1/keyring 
          --name client.rgw.rgw-node1
  1. Create a RADOS Gateway user for the S3 access:
      # radosgw-admin user create --uid=pratima 
        --display-name="Pratima Umrao" 
        [email protected] 
        -k /var/lib/ceph/radosgw/ceph-rgw.rgw-node1/keyring 
        --name client.rgw.rgw-node1
  1. The values keys (access_key) and the keys (secret_key) would be required later in this chapter for access validation.
  2. To use Ceph object storage with the Swift API, we need to create a Swift subuser on the Ceph RGW:
         # radosgw-admin subuser create --uid=pratima 
           --subuser=pratima:swift --access...