annegentle
109 lines
2.8 KiB
ReStructuredText
109 lines
2.8 KiB
ReStructuredText
About The Rescue Extension
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==========================
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The rescue extension lets you put a server into a "rescue" status when the virtual instance will be replaced with a "rescue" image and have its existing drive attached as a second disk so that a root user can log in and troubleshoot problems with the virtual server.
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To put a server into "rescue" state, you do not have to be an administrator. The only requirement is that the base image used to build your instance must still be available.
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To obtain current information the extensions available to you, issue an EXTENSION query on the OpenStack system where it is installed, such as http://mycloud.com/v1.1/tenant/extensions.
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Rescue Extension Overview
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-------------------------
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Name
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Rescue
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Namespace
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http://docs.openstack.org/ext/rescue/api/v1.1
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Alias
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OPS-RES
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Contact
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Josh Kearney <josh@jk0.org>
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Status
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Alpha
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Extension Version
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v1.0 (2011-08-18)
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Dependencies
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Compute API 1.1
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Doc Link (PDF)
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http://
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Doc Link (WADL)
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http://
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Short Description
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This extension enables rescue capabilities for OpenStack Compute servers so that virtual instances running in the cloud may be put in a rescue status.
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Sample Query Responses
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----------------------
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As shown below, responses to an EXTENSION query in XML or JSON provide basic information about the extension.
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Extension Query Response: XML::
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N/A
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Extension Query Response: JSON::
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{"extensions": [{"updated": "2011-08-18T00:00:00+00:00", "name": "Rescue", "links": [], "namespace": "http://docs.openstack.org/ext/rescue/api/v1.1", "alias": "os-rescue", "description": "Instance rescue mode"}]}
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Document Change History
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-----------------------
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============= =====================================
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Revision Date Summary of Changes
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2011-09-16 Initial draft
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============= =====================================
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Summary of Changes
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==================
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This extension to the OpenStack Compute API enables rescue of running instances.
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To support these new actions, the extension also issues new states.
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New Actions
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----------
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rescue
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unrescue
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New Faults
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None
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New Headers
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-----------
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None
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New Resources
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-------------
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None
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New States
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RESCUING
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UNRESCUING
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Changes to the Cloud Servers Specification
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------------------------------------------
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A new action added to the 4.3 Server Actions section.
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Rescue Server
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+++++++++++++
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============= ==================
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Verb URI
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POST /servers/id/rescue
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============= ==================
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Normal Response Code(s): 202
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Error Response Code(s): computeFault (400, 500, …), serviceUnavailable (503), unauthorized (401), forbidden (403), badRequest (400), badMethod (405), overLimit (413), itemNotFound (404), badMediaType (415), buildInProgress (409)
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Status Transition: ACTIVE -> RESCUING -> ACTIVE
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This operation places the server into RESCUING status. |