[Dev] Clean up logfile for dev starts

[andrewballantyne]

Cleans up the log file introduced in #914

Every time we start our dev environment is a good time to clean up the logfile. If we don't, it grows indefinitely. I hit over 5mb recently... it likely will grow indefinitely as there is no cleanup mechanism.

This is by design for production, but for development it's unnecessary.

[Gkrumbach07]

would you want the same cleaning to run on frontend as well. And even the root folder has some logs?

[andrewballantyne]

would you want the same cleaning to run on frontend as well. And even the root folder has some logs?

Logs are generated by the backend -- see the PR I mentioned in the description. https://github.com/opendatahub-io/odh-dashboard/pull/914/files#diff-489e4ec44d1b710d94129fd9004a2d41bbae615dbc8e9ea3e9b2c6513a3c0accR50

No sense in cleaning it from the frontend -- as it can't write to the file.

[DaoDaoNoCode]

lgtm

[openshift-ci]

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