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Breaking Down Your Build: Architectural Patterns for A More
Efficient Pipeline
FromFragileToAgile.com & Equal Experts@AbrahamMarin
About me
Making Software. Better.Simple solutions to big business problems.
Equal Experts is a network of talented, experienced, software consultants, specialising in agile delivery.
What’s in a Build?
Complexityvs.
Simplicity
"Perfection Is Achieved Not When There Is Nothing More to Add,
But When There Is Nothing Left to Take Away”
Antoine de Saint-Exupéry | The Little Prince
The fastest build is the one you don’t need to run
Break down a monolith
Break down a monolith
Break down a monolith
APPBACKEND
SUPERAPP
DATAMODEL
APPBACKEND
SUPERAPP
SUPERAPP
DATAMODEL
APPBACKEND
GUI
Build up your microservices
Build up your microservices
Build up your microservices
Build up your microservices
Build up your microservices
Build up your microservices
Build up your microservices
How to build a CI/CD system like this
https://skillsmatter.com/skillscasts/6371-scalable-continuous-deployment-with-maven
View my talk
Good Refactoring Skills Needed
Safety First
Restructuring Patterns
Restructuring Patterns
● Decoupling API from implementation
● Horizontal vs. vertical slices
● Library as a service
● Reduce fan-out
● Configuration as a service
Restructuring Patterns
● Decoupling API from implementation
● Horizontal vs. vertical slices
● Library as a service
● Reduce fan-out
● Configuration as a service
Decoupling API from implementation
Decoupling API from implementation
WEB INTERFACE
LIBRARY
Decoupling API from implementationGoal
WEB INTERFACE
LIBRARY IMPL
ASSEMBLYLIBRARY
API
Decoupling API from implementation
WEB INTERFACE
LIBRARY
Decoupling API from implementation
ASSEMBLYWEB
INTERFACELIBRARY
Integration TestDeploySmoke Test
ASSEMBLY
Decoupling API from implementation
WEB INTERFACE
LIBRARY
CompileUnit TestContract Test
Decoupling API from implementation
LIBRARY API
LIBRARY IMPL
ASSEMBLYWEB
INTERFACE
Decoupling API from implementation
DI for IMPLUse explicit wiring
LIBRARYAPI
LIBRARY IMPL
ASSEMBLYWEB
INTERFACE
Decoupling API from implementation
WEB INTERFACE
LIBRARY IMPL
No conflict in run time thanks to explicit wiring
ASSEMBLY
LIBRARY API
LIBRARY IMPL
Decoupling API from implementation
WEB INTERFACE
LIBRARY IMPL
ASSEMBLY
LIBRARY API
LIBRARY IMPL
Decoupling API from implementation
WEB INTERFACE
LIBRARY IMPL
ASSEMBLYLIBRARY
API
Restructuring Patterns
● Decoupling API from implementation
● Horizontal vs. vertical slices
● Library as a service
● Reduce fan-out
● Configuration as a service
Horizontal vs. vertical slices
Horizontal vs. vertical slices
PersistenceValidation
LogicFront-End
Web Service
Horizontal vs. vertical slices
PersistenceValidation Front-end
ACCOUNT
COMMS
PAYMENT
ACCOUNT
COMMS
PAYMENT
ACCOUNT
COMMS
PAYMENT
Web Service
Horizontal vs. vertical slicesEnd Goal
COMMS
PERSISTENCE
VALIDATION
FRONT-END
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
ACCOUNT
PERSISTENCE
VALIDATION
FRONT-END
Web Service
Horizontal vs. vertical slices
PersistenceValidation Front-end
ACCOUNT
COMMS
PAYMENT
ACCOUNT
COMMS
PAYMENT
ACCOUNT
COMMS
PAYMENT
Web Service
Horizontal vs. vertical slices
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
Persistence Validation Front-end
ACCOUNT
COMMS
PAYMENT
ACCOUNT
COMMS
PAYMENT
ACCOUNT
COMMS
PAYMENT
Web Service
Horizontal vs. vertical slices
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
Persistence Validation Front-end
ACCOUNT
COMMS
PAYMENT
ACCOUNT
COMMS
PAYMENT
ACCOUNT
COMMS
PAYMENT
Web Service
Horizontal vs. vertical slices
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
Persistence Validation Front-end
ACCOUNT
COMMS
ACCOUNT
COMMS
ACCOUNT
COMMS
Web Service
Horizontal vs. vertical slices
COMMS
PERSISTENCE
VALIDATION
FRONT-END
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
Persistence Validation Front-end
ACCOUNT
COMMS
ACCOUNT
COMMS
ACCOUNT
COMMS
Web Service
Horizontal vs. vertical slices
COMMS
PERSISTENCE
VALIDATION
FRONT-END
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
Persistence Validation Front-end
ACCOUNT
COMMS
ACCOUNT
COMMS
ACCOUNT
COMMS
Web Service
Horizontal vs. vertical slices
COMMS
PERSISTENCE
VALIDATION
FRONT-END
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
Persistence Validation Front-end
ACCOUNT ACCOUNT ACCOUNT
Web Service
Horizontal vs. vertical slices
ACCOUNTCOMMS
PERSISTENCE
VALIDATION
FRONT-END
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
Persistence Validation Front-end
ACCOUNT ACCOUNT ACCOUNT
Web Service
PERSISTENCE
VALIDATION
FRONT-END
Horizontal vs. vertical slices
ACCOUNTCOMMS
PERSISTENCE
VALIDATION
FRONT-END
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
Persistence Validation Front-end
ACCOUNT ACCOUNT ACCOUNT
Web Service
PERSISTENCE
VALIDATION
FRONT-END
Horizontal vs. vertical slices
COMMS
PERSISTENCE
VALIDATION
FRONT-END
PAYMENT
PERSISTENCE
VALIDATION
FRONT-END
ACCOUNT
PERSISTENCE
VALIDATION
FRONT-END
Web Service
Restructuring Patterns
● Decoupling API from implementation
● Horizontal vs. vertical slices
● Library as a service
● Reduce fan-out
● Configuration as a service
Library as a service
Library as a service
Library SERVICE B
SERVICE C
SERVICE A
Library as a serviceGoal
SERVICE B
SERVICE C
SERVICE A IT A
IT B
IT C
Library Service
Library as a service
Library SERVICE B
SERVICE C
SERVICE A
Library as a service
Library SERVICE B
SERVICE C
SERVICE A IT A
IT B
IT C
Library as a service
Library
SERVICE B
SERVICE C
SERVICE A IT A
IT B
IT C
Library Service
Library as a service
Library
SERVICE B
SERVICE C
SERVICE A IT A
IT B
IT C
Library Service
Library as a service
Library
SERVICE B
SERVICE C
SERVICE A IT A
IT B
IT C
Library Service
Library as a service
Library
SERVICE B
SERVICE C
SERVICE A IT A
IT B
IT C
Library Service
Library as a service
SERVICE B
SERVICE C
SERVICE A IT A
IT B
IT C
Library Service
Restructuring Patterns
● Decoupling API from implementation
● Horizontal vs. vertical slices
● Library as a service
● Reduce fan-out
● Configuration as a service
Reduce fan-out
Reduce fan-out
B
H
C
D
E
F
G
A
Reduce fan-out
B
H
C
D
E
F
G
A
A1
A2A3
Reduce fan-outGoal
B
H
C
D
E
F
G
A2
A3
A1
Reduce fan-out
B
H
C
D
E
F
G
A
A1
A2A3
Reduce fan-out
B
H
C
D
E
F
G
A1
A2A3
A1
Reduce fan-out
B
H
C
D
E
F
G
A1
A2A3
A1
Reduce fan-out
B
H
C
D
E
F
G
A2
A3
A1
Reduce fan-out
B
H
C
D
E
F
G
A2
A3
A1
A3
Reduce fan-out
B
H
C
D
E
F
G
A2
A3
A1
A3
Reduce fan-out
B
H
C
D
E
F
G
A2
A3
A1
Reduce fan-out
B
H
C
D
E
F
G
A2
A3
A1
Restructuring Patterns
● Decoupling API from implementation
● Horizontal vs. vertical slices
● Library as a service
● Reduce fan-out
● Configuration as a service
Configuration as a service
Configuration as a service
Configuration
Configuration as a service
Configuration
● Feature Flag● Throttling Variable● A/B Testing● URLs to other systems● …● (for each environment!)
Configuration as a service
Configuration
● Feature Flag● Throttling Variable● A/B Testing● URLs to other systems● …● (for each environment!)
Service Rebuild
● Compile● Test Internal Logic● Contract Tests● Full Integration Tests● Deploy● Smoke Tests
Configuration as a service
Config itemsSoft : can check in runtime (eg. feature flag)
Hard : need to check in startup (eg. DB connection)
Configuration as a service
Service
Configuration as a serviceGoal
ServiceSmoke Tests
Soft Config Service
Hard Config
Deploy
Configuration as a service
Service
Configuration as a service
Service
Config
Everything Else
Deploy
Smoke Tests
Configuration as a service
Service
Config
Smoke Tests
Configuration as a service
Service
Config Smoke Tests
Configuration as a service
Service
Soft Config
Smoke Tests
Hard Config
Configuration as a service
Service
Soft Config
Smoke Tests
Hard Config
Soft Config Service
Configuration as a service
Service
Soft Config
Smoke Tests
Hard Config
Soft Config Service
Configuration as a service
ServiceSmoke Tests
Hard Config
Soft Config Service
Configuration as a service
ServiceSmoke Tests
Soft Config Service
Hard Config
Everything Else
Deploy
Configuration as a service
ServiceSmoke Tests
Soft Config Service
Hard Config
Deploy
Restructuring Patterns
● Decoupling API from implementation
● Horizontal vs. vertical slices
● Library as a service
● Reduce fan-out
● Configuration as a service
But… Should I Do It?
But… Should I Do It?
https://youtu.be/8JxoKJng_eQ
Check out my video on YouTube
Recapping…
Don’t run things faster, run fewer things
Seek simplicity
Restructure as needed
Thank You!
FromFragileToAgile.com@AbrahamMarin
Thank You
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