Microservices Deployment

Question

I have:

Microservice-A Microservice-B Microservice-C

Microservice-A calls Microservice-B and Microservice-C

When I deploy Microservice-A I want make

Answer 1

Each microservice could provide a versionnumber either via API or by writing to a public file / shared DB. Each microservice would then contain all the expected versionnumbers of its dependencies with and check if the version numbers in the file / database match before startup.