an overview of microservices
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Microservices - An Overview
Ganesh Samarthyam
Microservices is an architectural style
Complex application = composed of tiny services
Communicate over REST API
HTTP GET
HTTP PUT
HTTP POST
HTTP DELETE
Underlying philosophy
“do one thing and do it well”
Who uses microservices?
Monolithic
Microservices
Conway’s law“Any organization that designs a system… will inevitably produce
a design whose structure is a copy of the organization's communication structure”
Conway’s lawTeam 1
Team 2Team 3
Team 4
Conway’s law
Team 1 Team 2
Team 3
Team 4
Monolithic to microservices
Monolithic to microservices
Microservices = “fine grained SOA” or “SOA 2.0”
Service = manageable by “two pizza” team
Service = a team can DURS (Deploy, Update, Replace, Scale)
Microservices = Damn U R Sexy
Security
Microservices expose a lot more functionality over the network => must ensure secure access
Web resources• Wikipedia entry for microservices • Martin Fowler’s article that provides an overview of micro services • Description of micro services architecture pattern • James Lewis’s podcast in SE-Radio on microservices • Migration to microservices by Adrian Cockcroft (Netflix) • From monolith to microservices by Randy Shoup
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