fix setup in test acl for single asic linecard

[arlakshm]

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan arlakshm@microsoft.com

Description of PR

Summary:
Fixes #6950

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• Test case(new/improvement)

Back port request

• 201911
• 202012
• [x ] 202205

Approach

What is the motivation for this PR?

How did you do it?

Fix the setup function for t2 to handle single asic linecards

How did you verify/test it?

Run t2 tests on the T2 testbed with single and multi asic linecards

arlakshm@681605572cc8:/data/my-mgmt/tests$ sudo ANSIBLE_KEEP_REMOTE_FILES=1  ./run_tests.sh -c 'acl/test_acl.py'  -i '../ansible/str2,../ansible/veos' -n 'vms26-t2-sonic-1' -t 't2,any' -e '--skip_sanity'  -u
=== Running tests in groups ===
Running: pytest acl/test_acl.py --inventory ../ansible/str2,../ansible/veos --host-pattern str2-sonic-lc5-1,str2-sonic-lc6-1,str2-sonic-lc7-1,str2-sonic-sup-1 --testbed vms26-t2-sonic-1 --testbed_file /data/my-mgmt/ansible/testbed.yaml --log-cli-level warning --log-file-level debug --kube_master unset --showlocals --assert plain --show-capture no -rav --allow_recover --ignore=ptftests --ignore=acstests --ignore=saitests --ignore=scripts --ignore=k8s --ignore=sai_qualify --junit-xml=logs/tr.xml --log-file=logs/test.log --topology t2,any --skip_sanity
/usr/local/lib/python2.7/dist-packages/ansible/parsing/vault/__init__.py:44: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed
in the next release.
  from cryptography.exceptions import InvalidSignature
=========================================================================================================== test session starts ============================================================================================================platform linux2 -- Python 2.7.17, pytest-4.6.5, py-1.11.0, pluggy-0.13.1
ansible: 2.8.12
rootdir: /data/my-mgmt/tests, inifile: pytest.ini
plugins: html-1.22.1, repeat-0.9.1, forked-1.3.0, xdist-1.28.0, metadata-1.11.0, allure-pytest-2.8.22, ansible-2.2.2
collecting ... /usr/local/lib/python2.7/dist-packages/ansible/parsing/vault/__init__.py:44: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in the next release.
  from cryptography.exceptions import InvalidSignature
/usr/local/lib/python2.7/dist-packages/ansible/parsing/vault/__init__.py:44: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed
in the next release.
  from cryptography.exceptions import InvalidSignature
/usr/local/lib/python2.7/dist-packages/ansible/parsing/vault/__init__.py:44: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed
in the next release.
  from cryptography.exceptions import InvalidSignature
/usr/local/lib/python2.7/dist-packages/ansible/parsing/vault/__init__.py:44: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed
in the next release.
  from cryptography.exceptions import InvalidSignature
/usr/local/lib/python2.7/dist-packages/ansible/parsing/vault/__init__.py:44: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed
in the next release.
  from cryptography.exceptions import InvalidSignature
collected 800 items

acl/test_acl.py::TestBasicAcl::test_ingress_unmatched_blocked[ipv4-ingress-downlink->uplink] PASSED                                                                                                                                  [  0%]
acl/test_acl.py::TestBasicAcl::test_ingress_unmatched_blocked[ipv4-ingress-uplink->downlink] PASSED                                                                                                                                  [  0%]
acl/test_acl.py::TestBasicAcl::test_egress_unmatched_forwarded[ipv4-ingress-downlink->uplink] SKIPPED                                                                                                                                [  0%]
acl/test_acl.py::TestBasicAcl::test_egress_unmatched_forwarded[ipv4-ingress-uplink->downlink] SKIPPED                                                                                                                                [  0%]
acl/test_acl.py::TestBasicAcl::test_source_ip_match_forwarded[ipv4-ingress-downlink->uplink] PASSED                                                                                                                                  [  0%]
acl/test_acl.py::TestBasicAcl::test_source_ip_match_forwarded[ipv4-ingress-uplink->downlink] PASSED                                                                                                                                  [  0%]
acl/test_acl.py::TestBasicAcl::test_rules_priority_forwarded[ipv4-ingress-downlink->uplink] PASSED                                                                                                                                   [  0%]
acl/test_acl.py::TestBasicAcl::test_rules_priority_forwarded[ipv4-ingress-uplink->downlink] PASSED     
....

Any platform specific information?

Supported testbed topology if it's a new test case?

Documentation

[azure-pipelines]

The pre-commit check detected issues in the files touched by this pull request.
The detected issues may be old or new. For new issues, please try to fix them.

For old issues, it is not mandatory to fix them because they were not caused by this change. It is unfair to blame
author of this pull request. But if you can take extra effort to fix the old issues as well, that would be great!

Detailed pre-commit check results:
trim trailing whitespace.................................................Passed
fix end of files.........................................................Passed
check yaml...........................................(no files to check)Skipped
check for added large files..............................................Passed
check python ast.........................................................Passed
flake8...................................................................Failed
- hook id: flake8
- exit code: 1

tests/acl/test_acl.py:140:121: E501 line too long (129 > 120 characters)
tests/acl/test_acl.py:413:121: E501 line too long (137 > 120 characters)

To run the pre-commit checks locally, you can follow below steps:

1. Ensure that default python is python3. In sonic-mgmt docker container, default python is python2. You can run
   the check by activating the python3 virtual environment in sonic-mgmt docker container or outside of sonic-mgmt
   docker container.
2. Ensure that the pre-commit package is installed:

sudo pip install pre-commit

3. Go to repository root folder
4. Install the pre-commit hooks:

pre-commit install

5. Use pre-commit to check staged file:

pre-commit

6. Alternatively, you can check committed files using:

pre-commit run --from-ref <commit_id> --to-ref <commit_id>

[arlakshm]

@ysmanman @sanmalho-git for viz.

[sanmalho-git]

lgtm