Do you know backend?

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Across
  1. 3. A containerization platform
  2. 6. distributed NoSQL database management system
  3. 8. distributed streaming platform.
  4. 9. relational database management system
  5. 13. in-memory data structure store
  6. 14. hopping animal or a message broker software
  7. 16. A CI/CD tool
  8. 18. a python web framework
  9. 19. version control system
Down
  1. 1. chinese bear used for data science
  2. 2. node.js web app framework
  3. 4. javaScript library for UI development
  4. 5. A PHP web application framework
  5. 7. vegetable or a python library
  6. 10. season or a java framework
  7. 11. container orchestration system
  8. 12. Ruby web app framework
  9. 15. popular no-sql database
  10. 17. web server, reverse proxy and load balancer