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discovery of existing vms

asked 2014-12-02 17:24:19 +0300

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Hi I have a question regarding discovery of existing vms when installing Compute service on a Hyper-V node. I observed that existing vms do not show up in openstack. Is there a way to make those instances get managed by openstack or am I missing something ?

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answered 2014-12-02 18:29:51 +0300

alexpilotti gravatar image

This is correct, VMs not created by OpenStack can co-exist with OpenStack instances, although not recommended for the general use case.

OpenStack cannot take ownership of existing VMs, as there is no way to associate them to an existing tenant, image, flavor, etc.

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answered 2017-10-12 15:00:11 +0300

PeterK gravatar image

updated 2017-10-12 15:27:55 +0300


almost 3 years have passed. Is this still the case, that existing VMs will not be "visible" nor manageable in Openstack?

I found a n Openstack "user story" about this use case, obviously from the time of Kilo summit here:

It would be really really nice if we would not need to export -> import -> deploy all existing VMs to make them visible/manageable in Openstack...

-- Cheers, Peter.

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While certain projects allow importing existing resources (e.g. Cinder, Manila), this would be a significantly more complex and error prone operation for Nova. VMs allow a much higher grade of customization when compared to other resources.

lpetrut gravatar imagelpetrut ( 2017-10-13 14:26:12 +0300 )edit

true, but how about at least _displaying_ existing VMs?

PeterK gravatar imagePeterK ( 2017-10-17 13:46:23 +0300 )edit

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Asked: 2014-12-02 17:24:19 +0300

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Last updated: Oct 12 '17