What is a docker sidecar?

Related questions

1. Is Istio a service mesh?
2. Is envoy a service mesh?
3. What is Istio mixer?
4. Why do we need Istio?
5. What is sidecar in Istio?
6. What is service mesh in Microservices?
7. What does Microservices mean?
8. What are the main features of Citadel Istio?
9. What is Istio Auth?
10. Is Kubernetes open source?

Tags

1. #instance
2. #hence
3. #server
4. #microservice
5. #hosting
6. #service
7. #manner
8. #sidecar
9. #motorcycle
10. #developed
11. #deployed
12. #alongside
13. #attached
14. #conceptually
15. #application
16. #parent