set default pipeline to benchmark-only

[cgchinmay]

Description

If no pipeline is specified then by default 'benchmark-only' will be used

Issues Resolved

#326

Testing

• New functionality includes testing

[Describe how this change was tested]
Tested against already running cluster without specifying pipeline. default 'benchmark-only' will be used

python3 benchmark.py execute-test --workload=http_logs --target-hosts=https://localhost:9200 --distribution-version=2.10.0 --client-options="basic_auth_user:'admin',basic_auth_password:'admin',verify_certs:false,use_ssl:false" --test-mode --kill-running-processes

Output logs

2023-10-10 03:17:48,323 -not-actor-/PID:52566 osbenchmark.test_execution_orchestrator INFO Test Execution id [452bd58d-31ee-4da5-86ed-b77339cfb411]
2023-10-10 03:17:48,324 -not-actor-/PID:52566 osbenchmark.test_execution_orchestrator INFO User specified no pipeline. Using default pipeline [benchmark-only].

validated by running

make test

..

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
================= 1186 passed, 5 skipped, 3 warnings in 6.43s ==================

Added new UT

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[cgchinmay]

Will take a look at the failures and address them

[cgchinmay]

Will take a look at the failures and address them

fixed failed integration test. ran make it locally and verified