Attach All Local Disks During Rescue¶
https://blueprints.launchpad.net/nova/+spec/rescue-attach-all-disks
Attach all local disks during rescue to allow users access to all of their data.
Problem description¶
Currently only the root disk of the original instance is attached to the rescue instance. If an instance is unbootable, then there is no way to salvage data off ephemeral or other local disks.
Proposed change¶
When an instance is placed into rescue, attach all local disks in addition to the root disk already attached.
This explicitly does not attach any non-local disks, such as volumes. Any attempt to rescue a volume-backed instance will continue being rejected.
Alternatives¶
None
Data model impact¶
None
REST API impact¶
None
Security impact¶
None
Notifications impact¶
None
Other end user impact¶
None
Performance Impact¶
None
Other deployer impact¶
None
Developer impact¶
None
Implementation¶
Assignee(s)¶
- Primary assignee:
johannes.erdfelt
- Other contributors:
None
Work Items¶
Implement feature for each virt driver.
Dependencies¶
None
Testing¶
Each virt driver will be expected to test that all disks are attached during rescue as part of the existing Nova tests.
Tempest will be updated to assert that the original disks are attached during rescue.
Documentation Impact¶
It should be documented that this is a behavior change when rescuing instances.
