Fix do_init function in telemetry/conftest.py

[weiguo-nvidia]

Description of PR

Summary: Fix do_init function in telemetry/conftest.py
Fixes #
Test case telemetry/test_events.py::test_events failed in fixture test_eventd_healthy with error message FileNotFoundError: [Errno 2] No such file or directory: 'logs/telemetry/files/heartbeat.json'

• Issue1: The os.mkdir() function can only create one-level directory and cannot automatically create multiple directories. When create logs/telemetry, if "logs" directory does not exist, it will raise an error. Use os.makedirs() function can avoid this issue.

• Issue2: The error message Dir/file already exists in the except section is inaccurate. Failure may also be due to other reasons, and this log might be confusing.

• Issue3: Just copy telemetry/validate_yang_events.py once

Add pdb output

> /root/mars/workspace/sonic-mgmt/tests/telemetry/conftest.py(158)do_init()
(Pdb) os.getcwd()
'/root/mars/workspace/sonic-mgmt/tests'
-> for i in [BASE_DIR, DATA_DIR]:
(Pdb) DATA_DIR
'logs/telemetry/files'
(Pdb) BASE_DIR
'logs/telemetry'
(Pdb) n
> /root/mars/workspace/sonic-mgmt/tests/telemetry/conftest.py(159)do_init()
-> try:
(Pdb) n
> /root/mars/workspace/sonic-mgmt/tests/telemetry/conftest.py(160)do_init()
-> os.mkdir(i)
(Pdb) n
FileNotFoundError: [Errno 2] No such file or directory: 'logs/telemetry'
> /root/mars/workspace/sonic-mgmt/tests/telemetry/conftest.py(160)do_init()
-> os.mkdir(i)
(Pdb) n
> /root/mars/workspace/sonic-mgmt/tests/telemetry/conftest.py(161)do_init()
-> except OSError as e:
(Pdb) n
> /root/mars/workspace/sonic-mgmt/tests/telemetry/conftest.py(162)do_init()
-> logger.info("Dir/file already exists: {}, skipping mkdir".format(e))
(Pdb) n
04:58:02 conftest.do_init                         L0162 INFO   | Dir/file already exists: [Errno 2] No such file or directory: 'logs/telemetry', skipping mkdir

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• New Test case
  • Skipped for non-supported platforms
• Test case improvement

Back port request

• 202012
• 202205
• 202305
• 202311
• 202405
• 202411

Approach

What is the motivation for this PR?

How did you do it?

How did you verify/test it?

Any platform specific information?

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

Documentation

[mssonicbld]

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