Difference between revisions of "External resources"

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An resource is called "external", if it can't be dumped and restored without some help from the caller. Usually this mean that a part of it state is out of a dumped container.
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A resource is called "external", if it can't be dumped and restored without some help from the caller. Usually this means that a part of its state is out of a dumped container.
  
== Dumping ==
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== Dump ==
  
 
Typically external resources are just told to be such on dump. The respective option looks like <code>--external ''TYPE''[''ID'']:''VAL''</code> option, where <code>''TYPE''</code> is resource type, <code>''ID''</code> is resource ID and <code>''VAL''</code> is optional argument.
 
Typically external resources are just told to be such on dump. The respective option looks like <code>--external ''TYPE''[''ID'']:''VAL''</code> option, where <code>''TYPE''</code> is resource type, <code>''ID''</code> is resource ID and <code>''VAL''</code> is optional argument.
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Restoring external resources heavily depends on its type. Some resources can be restored by CRIU itself with the help of <code>--external</code> option, some cannot. See below for further details.
 
Restoring external resources heavily depends on its type. Some resources can be restored by CRIU itself with the help of <code>--external</code> option, some cannot. See below for further details.
  
== External resources ==
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== Resource types ==
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The following external resources can be checkpointed and restored:
  
 
* [[External bind mounts]]
 
* [[External bind mounts]]
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* [[External UNIX socket]]
 
* [[External UNIX socket]]
 
* [[VETH device]]
 
* [[VETH device]]
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* [[Mac-Vlan]]
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* [[External net namespaces]]
  
 
== See also ==
 
== See also ==

Latest revision as of 11:34, 17 March 2020

A resource is called "external", if it can't be dumped and restored without some help from the caller. Usually this means that a part of its state is out of a dumped container.

Dump[edit]

Typically external resources are just told to be such on dump. The respective option looks like --external TYPE[ID]:VAL option, where TYPE is resource type, ID is resource ID and VAL is optional argument.

Restore[edit]

Restoring external resources heavily depends on its type. Some resources can be restored by CRIU itself with the help of --external option, some cannot. See below for further details.

Resource types[edit]

The following external resources can be checkpointed and restored:

See also[edit]