Bug 1325025 - It should be specificed clearly that undercloud deployment should be done in a Virtual machine alone.
Summary: It should be specificed clearly that undercloud deployment should be done in ...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: documentation
Version: 7.0 (Kilo)
Hardware: All
OS: Linux
unspecified
medium
Target Milestone: ---
: 10.0 (Newton)
Assignee: RHOS Documentation Team
QA Contact: RHOS Documentation Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-04-07 22:07 UTC by Ruchika K
Modified: 2016-11-25 14:12 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-11-25 14:12:02 UTC
Target Upstream Version:


Attachments (Terms of Use)

Description Ruchika K 2016-04-07 22:07:44 UTC
Description of problem:

Undercloud desplyoment should be done in a Vm alone. We should tighten up the options on this unless there is a really good reason to leave it open for baremetal.

This is the justification to do an undercloud install on a VM alone

* "undercloud uninstall" does not exist so there is no planned and supported way to uninstall an undercloud.
* if customers break it in a non recoverable manner and want to start clean state there is NO way to do it on baremetal.

On baremetal.
* Uninstalling triple o and re-installing it does not clean up the state of the undercloud
* Reinstalling undercloud does not fix the state 
* The only option is to reimage the server which is NOT practical in a customer environment since customers do not want to reconfigure their networking etc and it costs them some time.

In a Virtual Machine
* The customer merely needs to revert to the snapshot before the undercloud was installed.


How reproducible:
NA

Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 2 Mike Burns 2016-09-30 08:32:24 UTC
I don't disagree with documenting the undercloud as an option (see bug 1337772).  I do believe that we should enumerate some of the pros and cons of the 2 approaches and allow customers to make an informed choice.

Comment 3 Dmitry Tantsur 2016-11-25 14:12:02 UTC
Hello. While it's *probably* possible to even deploy undercloud in a VM for bare metal overcloud, this not something we ever test, to say nothing about supporting. TripleO is expected to be used on bare metal, and so it Ironic. We are aware of limitations of several virtual solutions. Also, to be honest, undercloud is resource-greedy enough to deserve a separate BM machine.

As https://bugzilla.redhat.com/show_bug.cgi?id=1337772 already covers documenting it as an option, I'm closing this request.


Note You need to log in before you can comment on or make changes to this bug.