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The utility container provides a space where miscellaneous tools and other software can be installed. Tools and objects can be placed in a utility container if they do not require a dedicated container or if it is impractical to create a new container for a single tool or object. Utility containers can also be used when tools cannot be installed directly onto a host.
For example, the tempest playbooks are installed on the utility container since tempest testing does not need a container of its own. For another example of using the utility container, see the section called “Verifying OpenStack operation”.