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Bug 1732389

Summary: Cannot preserve old DNS config when applying empty state
Product: Red Hat Enterprise Linux 8 Reporter: Gris Ge <fge>
Component: nmstateAssignee: Gris Ge <fge>
Status: CLOSED ERRATA QA Contact: Mingyu Shi <mshi>
Severity: medium Docs Contact:
Priority: medium    
Version: 8.1CC: jiji, network-qe
Target Milestone: rcFlags: pm-rhel: mirror+
Target Release: 8.1   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: nmstate-0.0.8-1.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-11-05 20:51:59 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 Gris Ge 2019-07-23 09:31:50 UTC 
Description of problem:

When applying empty state, the nmstate will move the DNS config to the default gateway interface instead of preserving old DNS config savings.

Version-Release number of selected component (if applicable):
nmstate-0.0.7-1.el8

How reproducible:
100%


Steps to Reproduce:
1. Use nmcli to save a DNS entry in a non-default gateway interface.
2. Create `empty.yml` with below content:

---
interfaces: []

3. sudo nmstatectl set empty.yml

Actual results:

The DNS config moved to the interface with default gateway.

Expected results:

The old DNS config been preserved.

Additional info:
Upstream fix is a87f03dc7b8377340da9c20b82344bbf9d1933c0
Comment 4 errata-xmlrpc 2019-11-05 20:51:59 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, 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-2019:3347