What is a sidecar in technology?

Related questions

1. Is Microservices a design pattern?
2. What is envoy Istio?
3. What is the use of Hystrix?
4. What is Istio and envoy?
5. Is Kubernetes an orchestrator?
6. What is hystrix in Microservices?

Tags

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2. #built
3. #analyzes
4. #sidecar
5. #powerful
6. #supercharge
7. #manage
8. #machine
9. #breaks
10. #technology
11. #campaigns
12. #proprietary
13. #learning
14. #google
15. #trends
16. #continuously
17. #fueled
18. #doesn
19. #engine
20. #shopping
21. #specifically
22. #blend