Remove hard code cidr in test_create_server_multi_nic.

[Yikun Jiang]

Now, We have some hard code in empest\api\compute\servers\test_create_server_multi_nic.py,but in some public cloud env, VPC are limited to some specific address ranges by default.

such as:
1. for amazon cloud:
https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Subnets.html
10.0.0.0 - 10.255.255.255 (10/8 prefix)
172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
192.168.0.0 - 192.168.255.255 (192.168/16 prefix)

2. also in alibaba cloud:
https://www.alibabacloud.com/help/doc-detail/53604.htm?spm=a3c0i.q54484zh.a3.4.2f074e0bD965pt
Use the standard private CIDR blocks (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/1) or their subsets as the IP address ranges.

3. in huawei cloud:
http://support.huaweicloud.com/en-us/usermanual-vpc/en-us_topic_0030971614.html
The following CIDR blocks are supported:
10.0.0.0/8–24
172.16.0.0/12–24
192.168.0.0/16–24

So, we need change these hard code to some configuration, it can meet the user specific requirement flexiblly.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/534721

[Martin Kopec (mkopec)]

Moving back to new due to a long inactivity. We should discuss what we wanna do with this.

[Martin Kopec (mkopec)]

Moving to Confirmed as the cidr is hardcoded in the code which is not ideal. There is a partial fix for the issue, mentioned above, however it's incomplete - although it removed the hardcoded values, it changed the nature of the tests (see the comments in the review) which is not a wanted outcome. I'll move this to Confirmed until someone picks this up.

[OpenStack Infra (hudson-openstack)]

Change abandoned by "Ghanshyam <email address hidden>" on branch: master
Review: https://review.opendev.org/c/openstack/tempest/+/534721
Reason: There is no change/response since long, we are abandoning it feel free to restore an rebase it.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/tempest/+/877292

[Pragadeeswaran Sathyanarayanan (psathyan)]

https://review.opendev.org/c/openstack/tempest/+/877292

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/tempest/+/877292
Committed: https://opendev.org/openstack/tempest/commit/80851ad9061f289053b19030f72e05699a513160
Submitter: "Zuul (22348)"
Branch: master

commit 80851ad9061f289053b19030f72e05699a513160
Author: Pragadeeswaran Sathyanarayanan <email address hidden>
Date: Tue Mar 21 15:14:42 2023 +0530

    rm hardcoded cidr in test_create_server_multi_nic

    Now, We have some hard code in here, but some VPC are limited to
    some specific address ranges by default in some cloud.

    So, we need change these hard code to configuration, it can
    meet the user specific requirement flexibly and reasonably.

    closes-bug: #1743742
    Signed-off-by: Pragadeeswaran Sathyanarayanan <email address hidden>
    Change-Id: Ia201c0520b8d2df17664b84bd61755d7c2d68258

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tempest 34.2.0 release.