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rdsubhas on Sept 15, 2016 | parent | favorite | on: Microservices

You need to be this tall to use [micro] services:
* Basic Monitoring, instrumentation, health checks
* Distributed logging, tracing
* Ready to isolate not just code, but whole build+test+package+promote for every service
* Can define upstream/downstream/compile-time/runtime dependencies clearly for each service
* Know how to build, expose and maintain good APIs and contracts
* Ready to honor b/w and f/w compatibility, even if you're the same person consuming this service on the other side
* Good unit testing skills and readiness to do more (as you add more microservices it gets harder to bring everything up, hence more unit/contract/api test driven and lesser e2e driven)
* Aware of [micro] service vs modules vs libraries, distributed monolith, coordinated releases, database-driven integration, etc
* Know infrastructure automation (you'll need more of it)
* Have working CI/CD infrastructure
* Have or ready to invest in development tooling, shared libraries, internal artifact registries, etc
* Have engineering methodologies and process-tools to split down features and develop/track/release them across multiple services (xp, pivotal, scrum, etc)
* A lot more that doesn't come to mind immediately
Thing is - these are all generally good engineering practices.
But with monoliths, you can get away without having to do them. There is the "login to server, clone, run some commands, start a stupid nohup daemon and run ps/top/tail to monitor" way. But with microservices, your average engineering standards have to be really high. Its not enough if you have good developers. You need great engineers.