Real world microservice architecture

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1. The document discusses the benefits of a microservice architecture including separating development and releases, decentralized data management, improved testability, and scalability. 2. It describes how a monolithic architecture can have hundreds of developers working on a single codebase and database, while microservices allow smaller independent teams to work on their own services and data. 3. Microservices also improve testability by isolating domains and allowing reliable automated testing of individual services without interference from other parts of the system.

Tecnologia

1
Real-world Microservice Architecture
by Viacheslav Poturaev

2
Why microservices?
• Separating development/releases
• Decentralized data management
• Testability
• Scalability

3
Separating development/releases
Big
PHP
Monolith
Team
Team
Team
TeamTeam
Nice
PHP
App
GO
API
GO
API
GO
API
GO
API
GO
API
GO
API
Team
Team
Team
TeamTeam
Team
Shared
libs and
clients
Hundreds of devs
Single app repo
Hundreds commits dailyTens of tickets in release
Many conflicts
Multiple app reposSmall releases Few conflicts
Reliable deliveryOwn roadmap and schedule

4
Why microservices?
• Separating development/releases
• Decentralized data management
• Testability
• Scalability

DB
DB
DB
DB
Big DB
5
Decentralized data management
Big
PHP
Monolith
Team
Team
Team
TeamTeam
Nice
PHP
App
GO
API
GO
API
GO
API
GO
API
GO
API
GO
API
Team
Team
Team
TeamTeam
Team
Shared
libs and
clients
Hundreds of devs
Single all-purpose DB cluster Every service has own storage
Hard to scaleLots of data Easy to join data
Loose data ownership
Hard to join data
Strict data ownership
Less data Easier to scale

6
Why microservices?
• Separating development/releases
• Decentralized data management
• Testability
• Scalability

7
Testability
Big
PHP
Monolith
Team
Team
Team
TeamTeam
Nice
PHP
App
GO
API
GO
API
GO
API
GO
API
GO
API
GO
API
Team
Team
Team
TeamTeam
Team
Shared
libs and
clients
Hundreds of devs
Domain isolation
Manual regression testingMany interferences
No interferences
API level contract
Reliable automated tests
Obscure internal relations

8
Why microservices?
• Separating development/releases
• Decentralized data management
• Testability
• Scalability
Low coupling and complexity
Decentralized governance
Small and simple

9
Development
•Extract monolith features  
as microservices
•Expose API spec/docs
•Strong typing client libs 
for communication
•Service is implemented  
on top of reusable framework
•Infrastructure (cache, db, etc) 
is unified, accessed with  
shared libs
•Each service has own roadmap 
and schedule
•Automated Semantic Versioning
Service
Auto-generated client libs
API spec/docs
Resources of
unified infrastructure
Developers
Shared libs
High-level framework

10
Quality Assurance
•Unit tests in services and shared libs
•No unit tests for autogenerated client libs
•Handler level integration tests with mocked external
dependencies
•Multi-service integration tests (valid external dependencies)
Automated
Manual
• Regression test for large-scale changes

11
Conventions over configuration
LZD SOA manager
Unified environment
Makefile targets
Logging format
Health checks
swagger.json
Profiling interface
Discovery unregister
Monitoring metrics
Tracing headers

12
Deployment
Legacy
Provisioning
Configuration
Deployment

13
Transport
• Protocol
• JSON
• REST
• JSON-RPC
• Binary
• gRPC
• Round-robin P2P and load balancers
• Dynamic nodes list
High compatibility
High performance
Human-readable
Non human-readable Less traffic
More traffic
Avg performance
Lower compatibility

14
Discovery
Register itself
Watch list of nodes
P2P LZD SOA manager

15
Configuration
app.ini.sed
app.tpl
app.ini
credentials.yaml
config.yaml
etcdupdater
Legacy
Dynamic configuration
Command line
and ENV
arguments
LZD SOA manager

16
Tracing and debugging
Tracer tool
Client
X-LZD-TraceId
Logs
Storage
Access Log
Debug Log
X-LZD-ForceDebug
TraceId | Message

17
Logging
Convention-formatted logs
Search and analytics UI

18
Monitoring
/metrics
/metrics
Ninjas on duty
Alert Manager
LZD SOA manager

19
Microservices help us to
Support
Optimize
Increase
Improve
fast business growth
tech team efforts and efficiency
reliability of new features delivery
transparency of the whole system

20
Join the team!
26 nationalities
GO / Java / PHP
220 Employees
Hackathons
Happy FridaysTech Talks
Training Programs
Technology Driven Company Questions?

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Real world microservice architecture

1. 1 Real-world Microservice Architecture by Viacheslav Poturaev

2. 2 Why microservices? • Separating development/releases • Decentralized data management • Testability • Scalability

3. 3 Separating development/releases Big PHP Monolith Team Team Team TeamTeam Nice PHP App GO API GO API GO API GO API GO API GO API Team Team Team TeamTeam Team Shared libs and clients Hundreds of devs Single app repo Hundreds commits dailyTens of tickets in release Many conflicts Multiple app reposSmall releases Few conflicts Reliable deliveryOwn roadmap and schedule

4. 4 Why microservices? • Separating development/releases • Decentralized data management • Testability • Scalability

5. DB DB DB DB Big DB 5 Decentralized data management Big PHP Monolith Team Team Team TeamTeam Nice PHP App GO API GO API GO API GO API GO API GO API Team Team Team TeamTeam Team Shared libs and clients Hundreds of devs Single all-purpose DB cluster Every service has own storage Hard to scaleLots of data Easy to join data Loose data ownership Hard to join data Strict data ownership Less data Easier to scale

6. 6 Why microservices? • Separating development/releases • Decentralized data management • Testability • Scalability

7. 7 Testability Big PHP Monolith Team Team Team TeamTeam Nice PHP App GO API GO API GO API GO API GO API GO API Team Team Team TeamTeam Team Shared libs and clients Hundreds of devs Domain isolation Manual regression testingMany interferences No interferences API level contract Reliable automated tests Obscure internal relations

8. 8 Why microservices? • Separating development/releases • Decentralized data management • Testability • Scalability Low coupling and complexity Decentralized governance Small and simple

9. 9 Development •Extract monolith features   as microservices •Expose API spec/docs •Strong typing client libs  for communication •Service is implemented   on top of reusable framework •Infrastructure (cache, db, etc)  is unified, accessed with   shared libs •Each service has own roadmap  and schedule •Automated Semantic Versioning Service Auto-generated client libs API spec/docs Resources of unified infrastructure Developers Shared libs High-level framework

10. 10 Quality Assurance •Unit tests in services and shared libs •No unit tests for autogenerated client libs •Handler level integration tests with mocked external dependencies •Multi-service integration tests (valid external dependencies) Automated Manual • Regression test for large-scale changes

11. 11 Conventions over configuration LZD SOA manager Unified environment Makefile targets Logging format Health checks swagger.json Profiling interface Discovery unregister Monitoring metrics Tracing headers

12. 12 Deployment Legacy Provisioning Configuration Deployment

13. 13 Transport • Protocol • JSON • REST • JSON-RPC • Binary • gRPC • Round-robin P2P and load balancers • Dynamic nodes list High compatibility High performance Human-readable Non human-readable Less traffic More traffic Avg performance Lower compatibility

14. 14 Discovery Register itself Watch list of nodes P2P LZD SOA manager

15. 15 Configuration app.ini.sed app.tpl app.ini credentials.yaml config.yaml etcdupdater Legacy Dynamic configuration Command line and ENV arguments LZD SOA manager

16. 16 Tracing and debugging Tracer tool Client X-LZD-TraceId Logs Storage Access Log Debug Log X-LZD-ForceDebug TraceId | Message

17. 17 Logging Convention-formatted logs Search and analytics UI

18. 18 Monitoring /metrics /metrics Ninjas on duty Alert Manager LZD SOA manager

19. 19 Microservices help us to Support Optimize Increase Improve fast business growth tech team efforts and efficiency reliability of new features delivery transparency of the whole system

20. 20 Join the team! 26 nationalities GO / Java / PHP 220 Employees Hackathons Happy FridaysTech Talks Training Programs Technology Driven Company Questions?

Real world microservice architecture

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