Docker/Storage

This lesson introduces Docker storage.

Objectives and Skills

Objectives and skills for this lesson include:

• State which graph driver should be used on which OS
• Demonstrate how to configure devicemapper
• Compare object storage to block storage, and explain which one is preferable when available
• Summarize how an application is composed of layers and where those layers reside on the filesystem
• Describe how volumes are used with Docker for persistent storage
• Identify the steps you would take to clean up unused images on a filesystem, also on DTR
• Demonstrate how storage can be used across cluster nodes
• Identity roles
• Describe the difference between UCP workers and managers
• Describe process to use external certificates with UCP and DTR (UCP from cli, from GUI, print the public certificates), DTR)

References

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Docker

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