Should microservices have their own DB?
- Should microservices have separate databases?
- Can microservices use same database?
- Does each microservice need its own server?
- Should each microservice have its own repository?
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 use same database?
In the shared-database-per-service pattern, the same database is shared by several microservices. You need to carefully assess the application architecture before adopting this pattern, and make sure that you avoid hot tables (single tables that are shared among multiple microservices).
Does each microservice need its own server?
Microservices are decentralized and run on different servers, but they still work together for an application. Ideally, each microservice serves a single function, which enables simple routing between services with API communication.
Should each microservice have its own repository?
Perhaps the most obvious strategy for a microservices project is to put each microservice and each shared library into a separate repository. Then set up the CI and CD pipelines for each repository, where every repository represents a unit of deployment.
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