Bug 1882058

Summary:	[TestOnly] Verify "mixed" DCN environments (Edge sites with Ceph and others computes only)
Product:	Red Hat OpenStack	Reporter:	John Fulton <johfulto>
Component:	openstack-tripleo-heat-templates	Assignee:	Ollie Walsh <owalsh>
Status:	CLOSED ERRATA	QA Contact:	Marian Krcmarik <mkrcmari>
Severity:	high	Docs Contact:	Roger Heslop <rheslop>
Priority:	high
Version:	16.1 (Train)	CC:	akekane, bdobreli, cfields, dbecker, ealcaniz, gcharot, igallagh, mburns, morazi, rheslop, spower
Target Milestone:	z4	Keywords:	FutureFeature, TestOnly, Triaged
Target Release:	16.1 (Train on RHEL 8.2)	Flags:	johfulto: needinfo?
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:	This enhancement adds support for heterogeneous storage configurations at the edge. Operators can now deploy edge sites with storage and sites without storage within the same DCN deployment.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-03-17 15:32:20 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1886145, 1886171
Bug Blocks:	1802774

Description John Fulton 2020-09-23 17:29:52 UTC

The DCN documentation [1] covers two scenarios:

1. DCN without storage
2. DCN with storage

This is a TestOnly bug to test a mixed environment. Specifically:

1. Central is deployed with storage as per our docs [1]
2. DCN1 is deployed with storage (HCI nodes) as per our docs [1]
3. DCN2 is deployed without any storage using pure Compute nodes

We need to test the above scenario and describe how Glance needs to be configured at the Central site so that images can get to the pure Compute nodes. RBD will need to be at least one of the Glance backends at central.


[1] https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.1/html-single/distributed_compute_node_and_storage_deployment/index

Comment 2 John Fulton 2020-09-28 14:20:57 UTC

This usecase don't have to be with HCI. The following variation is also valid.

1. Central is deployed with storage as per our docs
2. DCN1 is deployed with storage (either HCI nodes or Compute + CephStorage) 
3. DCN2 is deployed without any storage using pure Compute nodes

Comment 10 spower 2021-01-06 14:59:34 UTC

Exception + flag given

Comment 24 errata-xmlrpc 2021-03-17 15:32:20 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Red Hat OpenStack Platform 16.1.4 director bug fix advisory), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:0817