Should microservices share libraries?

Is it a good idea for microservices to share a common database?

Microservices with shared databases can't easily scale. Changes related to the database could impact multiple services. Besides, microservices won't be independent in terms of development and deployment as they connect to and operate on the same database.

Should microservices share code repositories?

A particular team needs to take the ownership and governance of the library and its code repository. One of the main limitations of this approach is that the Microservices should share the same programming language and platform to reuse the libraries effectively.

Should microservices have separate databases?

Each microservice should have its own database and should contain data relevant to that microservice itself. This will allow you to deploy individual services independently. Individual teams can now own the databases for the corresponding microservice.

Can microservices share the same database?

Yes, it's possible to integrate a database for microservices. You can create a single shared database with each service accessing data using local ACID transactions.