Bug 1212532

Summary:	Otherwise unconfigured network interfaces on overcloud nodes use DHCP
Product:	Red Hat OpenStack	Reporter:	Victor Lowther <victor_lowther>
Component:	instack-undercloud	Assignee:	James Slagle <jslagle>
Status:	CLOSED DUPLICATE	QA Contact:	Shai Revivo <srevivo>
Severity:	unspecified	Docs Contact:
Priority:	medium
Version:	Director	CC:	arkady_kanevsky, christopher_dearborn, dsneddon, dtantsur, hbrock, jcoufal, jschluet, mburns, morazi, rhel-osp-director-maint
Target Milestone:	---
Target Release:	10.0 (Newton)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-10-20 11:53:00 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:

Description Victor Lowther 2015-04-16 15:11:56 UTC

This means that you can wind up with working addresses on random networks, run out of leases on the discovery range, or have your traffic go through the wrong interface die to ARP roulette. Either way, Hilarity can ensue.

The Principle of Least Surprise would dictate that someone ignorantly attaching an interface that should not be configured should not do horrible things to your networking, so interfaces that are not configured should not have DHCP enabled on them.

Comment 5 Mike Orazi 2015-09-01 21:51:26 UTC

I believe this only applies in cases where network isolation is not used.

Comment 6 Mike Orazi 2015-09-01 21:51:51 UTC

(credit to Dan Sneddon ^^ )

Comment 7 Jaromir Coufal 2016-01-06 17:55:35 UTC

Dan, is this still an issue? If not, could you please close this bug.

Comment 10 Dan Sneddon 2016-10-14 20:29:03 UTC

I thought this issue had been fixed, we modified the deployment scripts to delete the udev rule after os-net-config runs. I need to triage BZ # 1382653 however, to figure out if some version of this bug has resurfaced before closing it.

Comment 11 Dmitry Tantsur 2016-10-20 11:53:00 UTC

Let us close this bug as a duplicate. I think DHCP'ing all interfaces is an explicit design choice we made.

*** This bug has been marked as a duplicate of bug 1382653 ***