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Bug 1047887

Summary: Update vnic_profile fails for VM vnic.
Product: Red Hat Enterprise Virtualization Manager Reporter: Meni Yakove <myakove>
Component: ovirt-engine-restapiAssignee: Moti Asayag <masayag>
Status: CLOSED CURRENTRELEASE QA Contact: GenadiC <gcheresh>
Severity: urgent Docs Contact:
Priority: high    
Version: 3.3.0CC: acathrow, bazulay, cpelland, danken, gcheresh, gklein, iheim, iliam, juan.hernandez, lpeer, masayag, nyechiel, oramraz, Rhev-m-bugs, yeylon
Target Milestone: ---Keywords: Reopened, Triaged, ZStream
Target Release: 3.4.0   
Hardware: x86_64   
OS: Linux   
Whiteboard: network
Fixed In Version: ovirt-3.4.0-beta3 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 1064429 1064823 (view as bug list) Environment:
Last Closed: 2014-06-12 14:04:00 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: Network RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1064429, 1064823, 1078909, 1142926    

Description Meni Yakove 2014-01-02 13:59:16 UTC
Description of problem:
can't update update vnic_profile for vnic (on VM) using python-sdk
No error and vnic is not updated.

Update the network on vnic works as expected.

Version-Release number of selected component (if applicable):

How reproducible:

Comment 2 Ilia Meerovich 2014-01-02 14:33:48 UTC
similar failure occurs with Java SDK

Comment 3 Moti Asayag 2014-01-30 22:00:32 UTC
There are 2 signatures for the add/update vm nic via the api, via url:
- name: /vms/{vm:id}/nics/{nic:id}|rel=update

      - mandatoryArguments: {}
        optionalArguments: { 'xs:string', nic.linked: 'xs:boolean', 'xs:string', nic.mac.address: 'xs:string', nic.interface: 'xs:string', nic.plugged: 'xs:boolean'}
        description: update the network interface for the given virtual machine
      - mandatoryArguments: {}
        optionalArguments: {|name: 'xs:string', nic.linked: 'xs:boolean', 'xs:string', nic.mac.address: 'xs:string', nic.interface: 'xs:string', { 'xs:string'}, nic.plugged: 'xs:boolean'}

Where the first signature expects the vnic profile id only, and the second supports the network name for backward compatibility.

On 4.0 we should clear the deprecated signature and support vnic actions only with the profile id.

In order to work with the vnic profile, here are 2 samples both for python-sdk 
and for java-sdk where the network name should be nullified:

example of ovirt-engine-sdk-python:
vm1 = api.vms.get('vm1')
nic = vm1.nics.get('nic1')
nic.vnic_profile = api.vnicprofiles.get('vnic-profile-name') = None # required so no mix of old-new api

example of ovirt-engine-sdk-java:
VnicProfile profile = api.getVnicProfiles().get("vnic-profile-name");
VM vm = api.getVMs().get("vm1");
VMNIC vnic = vm.getNics().get("nic1");

Comment 4 Ilia Meerovich 2014-01-31 07:25:27 UTC

This nullification is not trivial to end user.
When user uses update in other places - he just sets needed parameters.
In this case how user will know that should nullify network? You can see that your first users that are familiar with API were confused.
Maybe it worth to add some RN for it?

Comment 5 Moti Asayag 2014-02-03 11:47:54 UTC
After additional testing with the nic.update() api, i've noticed that regardless of the vnic profile id/network name being provided in the parameters, the result of that action will shuffle the vnic profile assigned to the nic.

The engine logic for backward compatibility of the vm/template nic api should be fixed in the following manner:

1. If network name is provided, and unchanged - the vnic profile id from the parameters is used.
2. If the network name is provided and changed, use it instead of the vnic profile id.

In this way the engine assumes that only proactive changes should be considered when finding a vnic profile id for the given network.

Comment 7 GenadiC 2014-02-18 10:58:36 UTC
Verified in ovirt-engine-3.4.0-0.7.beta2.el6.noarch

Comment 8 Sandro Bonazzola 2014-02-19 12:26:40 UTC
This bug is referenced in ovirt-engine-3.4.0-beta3 logs. Moving to ON_QA

Comment 9 GenadiC 2014-02-19 13:27:00 UTC
Verified in ovirt-engine-3.4.0-0.11.beta3.el6.noarch

Comment 10 Itamar Heim 2014-06-12 14:04:00 UTC
Closing as part of 3.4.0