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66 lines
2.4 KiB
ReStructuredText
66 lines
2.4 KiB
ReStructuredText
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=============================
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Secret information management
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=============================
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The secrets driver in libvirt provides a simple interface for storing and
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retrieving secret information.
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Connections to SECRET driver
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----------------------------
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The libvirt SECRET driver is a multi-instance driver, providing a single system
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wide privileged driver (the "system" instance), and per-user unprivileged
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drivers (the "session" instance). A connection to the secret driver is
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automatically available when opening a connection to one of the stateful primary
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hypervisor drivers. It is none the less also possible to explicitly open just
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the secret driver, using the URI protocol "secret" Some example connection URIs
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for the driver are:
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::
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secret:///session (local access to per-user instance)
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secret+unix:///session (local access to per-user instance)
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secret:///system (local access to system instance)
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secret+unix:///system (local access to system instance)
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secret://example.com/system (remote access, TLS/x509)
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secret+tcp://example.com/system (remote access, SASl/Kerberos)
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secret+ssh://root@example.com/system (remote access, SSH tunnelled)
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Embedded driver
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~~~~~~~~~~~~~~~
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Since 6.1.0 the secret driver has experimental support for operating in an
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embedded mode. In this scenario, rather than connecting to the libvirtd daemon,
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the secret driver runs in the client application process directly. To open the
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driver in embedded mode the app use the new URI path and specify a virtual root
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directory under which the driver will create content.
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::
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secret:///embed?root=/some/dir
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Under the specified root directory the following locations will be used
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::
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/some/dir
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+- etc
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| +- secrets
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+- run
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+- secrets
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The application is responsible for recursively purging the contents of this
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directory tree once they no longer require a connection, though it can also be
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left intact for reuse when opening a future connection.
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The range of functionality is intended to be on a par with that seen when using
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the traditional system or session libvirt connections to QEMU. Normal practice
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would be to open the secret driver in embedded mode any time one of the other
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drivers is opened in embedded mode so that the two drivers can interact
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in-process.
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