Ignore error log from ctrmgrd in test_k8s_config_patch_apply

[bingwang-ms]

Description of PR

Summary:
Test case test_k8s_config_patch_apply is error out because error logs in syslog. The error message is expected as DUT doesn't have public DNS access.

E               May 11 13:35:04.494371 sonic ERR ctrmgrd.py: Refer file /tmp/tmp8apufdr7kube_hints_ for troubleshooting tips
E               
E               May 11 13:35:04.495918 sonic ctrmgrd.py: Join failed: HTTPSConnectionPool(host='k8svip.ap.gbl', port=6443): Max retries exceeded with url: /api/v1/namespaces/default/configmaps/kube-root-ca.crt (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7fdd64a9a250>: Failed to resolve 'k8svip.ap.gbl' ([Errno -2] Name or service not known)"))

This PR addressed the issue by ignoring the error log.

Type of change

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

Back port request

• 201911
• 202012
• 202205
• 202305
• 202311

Approach

What is the motivation for this PR?

This PR is to ignore error log from ctrmgrd in test_k8s_config_patch_apply.

How did you do it?

Add the expected log pattern into ignore list of LogAnalyzer.

How did you verify/test it?

Verified by running the test in a physical testbed. The test can pass now.

collected 1 item                                                                                                                                                                                      

generic_config_updater/test_kubernetes_config.py::test_k8s_config_patch_apply PASSED                                                                                                            [100%]

Any platform specific information?

No.

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

Not a new test case.

Documentation

[lixiaoyuner]

LGTM

[mssonicbld]

Cherry-pick PR to 202311: #12858