MODIN: fix getting started samples testing in CI

[dchigarev]

Signed-off-by: Dmitry Chigarev dmitry.chigarev@intel.com

Existing Sample Changes

Description

This PR is supposed to fix failing CI testing for Modin's getting started samples. The CI flow has been failing due to conda's failures during environment initialization inside the bash script (conda/conda#7980). The CI script was modified as follows to resolve the problem:

1. Source conda.sh before using conda to be able to activate environments inside a bash script (Can't execute conda activate from bash script conda/conda#7980).
2. Use set -e at the beginning of the CI script to ease debugging if something goes wrong.
3. Install notebook's dependencies from requirements.txt rather than manually listing them.

Fixes Jira REIE-1371.

External Dependencies

No external dependencies were added.

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• Command Line

To test the changes locally:

1. Combine steps from the sample.json into a single bash script.
2. Run the script and ensure that the last notebook's cell printed"[CODE_SAMPLE_COMPLETED_SUCCESFULLY]"

[praveenkk123]

Approve for CI

[dchigarev]

For some reason, the CI container still can't import modin package during the notebook's flow. I guess this is because activating conda environment and the notebook execution were split into different cells (env and steps in sample.json). I've combined them together to see if it helps, @praveenkk123 could you rerun CI, please?

[praveenkk123]

Approve for CI

[dchigarev]

For some reason, placing environment setup and the notebook execution in different cells (env and steps) caused the environment wasn't applied (this was indicated by the "Import error: couldn't find 'modin'" error at CI logs).

Combining environment setup steps and the actual notebook execution in a single cell resolved the problem.

[dchigarev]

@praveenkk123 thanks for rerunning! CI is green now