SeedStack OW2 Project was presented at OW2con'19, June 12-13 in Paris, by Marius Matei, Project Manager at PSA Group. Abstract: The design of cloud information systems requires usage of cloud ready development frameworks like SeedStack. SeedStack coding approach comes with some major benefits: compliance with open source cloud standards, modular design and clean code. Using domain driven design and bounded context concept, the microservices are finely identified. Operational elements like performance measures, APIs for connecting ressources are provided by SeedStack in order to prepare the integration of a cloud ready application with the host. SeedStack project templates and automation accelerate the development of cloud ready microservices. This presentation shows recent updates of SeedStack for building and operating modern architectures (microservices, Kafka, containers).

1. SeedStack - software
design for governance
Marius Matei
seedstack.org
twitter.com/seedstack
github.com/seedstack
Copyright PSA Groupe

2. What is SeedStack ?
A framework to build cloud-ready
systems
REST micro-services
Traditional Web applications
Server-less computing (AWS Lambda)
An innovative implementation
of Domain-Driven Design (DDD)
Structured, maintainable and evolutive
High productivity
Copyright PSA Groupe

3. Governance
Management and governance of the
Information System
Purchasing
Avoids vendor locking
Suppliers
Open Source standards for
development and software
architecture
Agility
Enables agility in providing new solutions
Strategy Enabler

4. Changes in software design
Serverless functions (FaaS)
Micro-services (PaaS or CaaS)
Traditional applications (IaaS)
More freedom
Focus on technical aspects
More constraints
Focus on business value
2013
2016
2018

5. Cloud Architecture Design Patterns
M I C R O S E R V I C E S
Fine business decoupling
S E R V I C E M E S S A G I N G
Communication and
ingestion/processing of data
S E R V E R L E S S
Cloud native via Lambdas
Copyright PSA Groupe

6. Microservices
Cloud Patterns
Copyright PSA Groupe

7. Microservices
Cloud Patterns
Lightweight
Designed around business
API-oriented
Designed for failure
Distributed messaging
Containerized
Monitored
Embedded HTTP/2 server
Business framework
REST + Swagger.io
Circuit-breaker
Apache Kafka
Docker support
Metrics
Copyright PSA Groupe

8. Service Messaging
Cloud Patterns
Integration with Apache Kafka, the distributed streaming platform.
Producers
Consumers
StreamProcessors
Connectors
Copyright PSA Groupe

9. Serverless
Cloud Patterns
Build your system using AWS Lambda server-less architecture.
Bring your own code
Flexible use
Simple resource model
Flexible authorization
Execution models : synchronous,
asynchronous, stream-based
Copyright PSA Groupe

10. … an Open Source project
Since 2015
License: MPL 2.0
Fine business decoupling
100 % Open-Source
Framework + add-ons
Tools
Documentation (CC BY-SA)
Flexible
Can be augmented with
proprietary add-ons to
create a custom
distribution.
Feel free to experience, use, and contribute to it!