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Registry is intended to be used as a repository service than an abstract collection of repositories. Namespace better describes a collection of repositories retrievable by name. The registry service serves any repository in the global scope. Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
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1.2 KiB
Glossary
This page contains distribution related terms. For a complete Docker glossary, see the glossary in the full documentation set.
- Blob
- The primary unit of registry storage. A string of bytes identified by content-address, known as a _digest_.
<dt>Image</dt>
<dd>An image is a collection of content from which a docker container can be created.</dd>
<dt>Layer</dt>
<dd>
A tar file representing the partial content of a filesystem. Several
layers can be "stacked" to make up the root filesystem.
</dd>
<dt>Manifest</dt>
<dd>Describes a collection layers that make up an image.</dd>
<dt>Registry</dt>
<dd>A registry is a service which serves repositories.</dd>
<dt>Repository</dt>
<dd>
A repository is a collection of docker images, made up of manifests, tags
and layers. The base unit of these components are blobs.
</dd>
<dt>Tag</dt>
<dd>Tag provides a common name to an image.</dd>
<dt>Namespace</dt>
<dd>A namespace is a collection of repositories with a common name prefix. The
namespace with an empty common prefix is considered the Global Namespace.</dd>
<dt>Scope</dt>
<dd>A common repository name prefix.</dd>