* Add log package. Update worker with new log package.
* Add init error to worker.
* Init workers when binary launching.
* Add tests to cover different errors.
* names, constants of reusable strings, removed unneeded `if`, replaced deprecated imports
* more deprecated imports replaced
* What is this?))
* Fix a path and quote a var in Dockerfile
* Addressing review comments
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Co-authored-by: Konstantin Koval <kkb@ukr.net>