A pattern language for microservices (#SFMicroservices)

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When architecting an application, you need to choose between the traditional monolithic architecture, or the more fashionable microservices architecture consisting of many smaller services. But rather than blindly picking the familiar or the fashionable, it’s important to remember what Fred Books said almost 30 years ago: there are no silver bullets in software. Every architectural decision has both benefits and drawbacks. Whether the benefits of one approach outweigh the drawbacks greatly depends upon the context of your particular project. Moreover, even if you adopt the microservices architecture, you must still make numerous other design decisions, each with their own trade-offs. A software pattern is an ideal way of describing a solution to a problem in a given context along with its tradeoffs. In this presentation, we describe a pattern language for microservices. You will learn about patterns that will help you decide when and how to use microservices vs. a monolithic architecture. We will also describe patterns that solve various problems in a microservice architecture including inter-service communication, service registration and service discovery.

Software

@crichardson
A pattern language for
microservices
Chris Richardson
Founder of Eventuate.io
Founder of the original CloudFoundry.com
Author of POJOs in Action
@crichardson
chris@chrisrichardson.net
http://microservices.io
http://eventuate.io
http://plainoldobjects.com

@crichardson
Presentation goal
Why patterns and pattern
languages?
A pattern language for
microservices

@crichardson
About Chris
Consultant and trainer
focusing on modern
application architectures
including microservices
(http://www.chrisrichardson.net/)

@crichardson
About Chris
Founder of a startup that is creating
a platform that makes it easier for
developers to write transactional
microservices
(http://eventuate.io)

@crichardson
For more information
http://learnmicroservices.io

@crichardson
Agenda
Why a pattern language for microservices?
An overview of the microservices pattern language

@crichardson
In 1986…
http://en.wikipedia.org/wiki/Fred_Brooks

@crichardson
Yet almost 30 years later
developers are still
passionately arguing over
“silver bullets”

@crichardson
Human beings are emotional
Decide
using
emotions
Rationalize with
our intellect
http://en.wikipedia.org/wiki/Mahout

@crichardson
Gartner Hype Cycle
http://upload.wikimedia.org/wikipedia/commons/b/bf/Hype-Cycle-General.png
It’s
awesome
It’s not
awesome
Trade-offs
understood

@crichardson
We need a better way
to discuss and think
about technology

@crichardson
What’s a pattern?
Reusable solution
to a problem
occurring
in a particular context

@crichardson
The structure of a pattern
=
Great framework for discussing
and thinking about technology

@crichardson
The structure of a pattern
Resulting context
aka the situation
Name
Context
Problem
Related patterns
(conﬂicting) issues
etc to address
Forces
Solution

@crichardson
Resulting context
Beneﬁts
Drawbacks
Issues to resolve

@crichardson
Related patterns
Alternative solutions
Solutions to problems
introduced by this pattern

Pattern language
A collection of related
patterns that solve problems
in a particular domain
Relationships
Pattern A results in a
context that has a problem
solved by Pattern B
Patterns A and B solve the
same problem
Pattern A is a
specialization of pattern B
http://en.wikipedia.org/wiki/A_Pattern_Language
Access to Water
Promenade
Local townhall
Intimacy gradient
Light on two sides

@crichardson
Meta-pattern: Use the pattern
format to describe technology
Problem: How to talk/reason about technology?
Solution: Use the pattern format
Beneﬁt: More objective
Drawback: Less exciting
Context: Emotional software development culture
Related patterns: It’s awesome!

@crichardson
Microservices pattern language
http://microservices.io/

@crichardson
How to architect your
application?

@crichardson
How to deploy your
application?

@crichardson
How do services
communicate?

@crichardson
How does a service know
another’s network location

@crichardson
How do an application’s clients
communicate with the services?

@crichardson
How to simplify the
development of services?

@crichardson
What is the database
architecture?

@crichardson
How to maintain data
consistency across services?

@crichardson
Summary: Patterns and pattern
languages are a great way to …
Think about technology
Discuss technology
Apply technology

@crichardson
Summary: The Microservices pattern
language is a great way to …
Think about microservices
Discuss microservices
Apply microservices (or not)

@crichardson
@crichardson chris@chrisrichardson.net
http://learnmicroservices.io
Questions?

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Everyone's Guide to States, Events and Async-Messaging for Microservices

Ähnlich wie A pattern language for microservices (#SFMicroservices)

CHRIS RICHARDSON FOUNDER, EVENTUATE When architecting an enterprise Java application, you need to choose between the traditional monolithic architecture consisting of a single large WAR file, or the more fashionable microservices architecture consisting of many smaller services. But rather than blindly picking the familiar or the fashionable, it’s important to remember what Fred Books said almost 30 years ago: there are no silver bullets in software. Every architectural decision has both benefits and drawbacks. Whether the benefits of one approach outweigh the drawbacks greatly depends upon the context of your particular project. Moreover, even if you adopt the microservices architecture, you must still make numerous other design decisions, each with their own trade-offs. A software pattern is an ideal way of describing a solution to a problem in a given context along with its tradeoffs. In this presentation, we describe a pattern language for microservices. You will learn about patterns that will help you decide when and how to use microservices vs. a monolithic architecture. We will also describe patterns that solve various problems in a microservice architecture including inter-service communication, service registration and service discovery.

A pattern language for microservices

VMware Tanzu

A pattern language for microservices - Chris Richardson

JAXLondon_Conference

This is a talk I gave at Code Freeze 2018: The microservice architecture is becoming increasingly popular. However, frequent references to using “a microservice to solve a problem” suggest that the concept is not universally well understood. In this talk, I define the microservice architecture as an architectural style and explain what that actually means. I also describe how the primary goal of the microservice architecture is to enable continuous delivery and deployment, and how it achieves that. You will learn why the architecture that you pick for your application matters. And you will learn how to solve key challenges with decomposing an application into microservices. This talk explains why there is no such thing as a microservice!

Code Freeze 2018: There is no such thing as a microservice!

Chris Richardson

The microservice architecture: what, why, when and how?

Chris Richardson

This is a presentation that gave at the O'Reilly Software Architecture Superstream: Software Architecture Patterns. The talk's focus is the microservices pattern language. However, it also shows how thinking with the pattern mindset - context/problem/forces/solution/consequences - leads to better technically decisions. The microservices architecture offers tremendous benefits, but it’s not a silver bullet. It also has some significant drawbacks. The microservices pattern language—a collection of patterns that solve architecture, design, development, and operational problems—enables software developers to apply the microservices architecture effectively. I provide an overview of the microservices architecture and examines the motivations for the pattern language, then takes you through the key patterns in the pattern language.

Using patterns and pattern languages to make better architectural decisions

Chris Richardson

At the Trailhead with Matt Stine

VMware Tanzu

The microservice architecture is becoming increasingly important. But what is it exactly? Why should you care about microservices? And, what do you need to do to ensure that your organization uses the microservice architecture successfully? In this talk, I’ll answer these and other questions. You will learn about the motivations for the microservice architecture and why simply adopting microservices is insufficient. I describe essential characteristics of microservices, You will learn how a successful microservice architecture consists of loosely coupled services with stable APIs that communicate asynchronously.

TDC2020 - The microservice architecture: enabling rapid, reliable, frequent a...

Chris Richardson

UGIdotNET App Modernisation Keynote

Lorenzo Barbieri

Content distilled down to appropriate chunks of information in the form of intelligent microcontent take on a new life when they are made available to the enterprise for consumption and reintegration across different business functions. The silos all but disappear when content is rendered to microcontent that is classed, focused, structured, and contextualized. This microcontent then can flow freely across product, marketing, training, and support documentation. Attend to learn more about this transformational opportunity.

Intelligent Microcontent: At the Point of Content Convergence | Rob Hanna

LavaConConference

How To be a Backend developer

Ramy Hakam

Dark matter and dark energy are mysterious concepts from astrophysics that are used to explain observations of distant stars and galaxies. The Microservices pattern language - a collection of patterns that solve architecture, design, development, and operational problems — enables software developers to use the microservice architecture effectively. But how could there possibly be a connection between microservices and these esoteric concepts from astrophysics? In this presentation, I describe how dark energy and dark matter are excellent metaphors for the competing forces (a.k.a. concerns) that must be resolved by the microservices pattern language. You will learn that dark energy, which is an anti-gravity, is a metaphor for the repulsive forces that encourage decomposition into services. I describe how dark matter, which is an invisible matter that has a gravitational effect, is a metaphor for the attractive forces that resist decomposition and encourage the use of a monolithic architecture. You will learn how to use the dark energy and dark matter forces as guide when designing services and operations.

Dark Energy, Dark Matter and the Microservices Patterns?!

Chris Richardson

PRESENTATION ON PROJECT REPORT

Diksha Bhargava

Reasons Why .NET framework is Most Demanding in 2023?

Polyxer Systems

Web development and web programming sound very similar — and they are. But there’s one very important distinction. Web development refers to the overall process of creating websites or web applications, including the project’s design, layout, coding, content creation, and functionality. It involves using a combination of programming languages, tools, and frameworks to bring a website or web application to life. It may also encompass project management activities, such as fielding development requests from stakeholders or freelance clients. Web programming, on the other hand, specifically refers to the coding and scripting of a website, whether the front-end or back-end. It primarily involves writing code to handle data, process user inputs, and generate dynamic content. A web programmer will rarely, if ever, handle a web development project from end to end. They may build a certain section of a site or troubleshoot bugs. Understanding this difference has been crucial in my career, allowing me to appreciate the depth and breadth of skills required in the world of web creation. It's a reminder of the diverse talents and expertise that come together to make the digital world what it is today. Web development and web programming sound very similar — and they are. But there’s one very important distinction. Web development refers to the overall process of creating websites or web applications, including the project’s design, layout, coding, content creation, and functionality. It involves using a combination of programming languages, tools, and frameworks to bring a website or web application to life. It may also encompass project management activities, such as fielding development requests from stakeholders or freelance clients. Web programming, on the other hand, specifically refers to the coding and scripting of a website, whether the front-end or back-end. It primarily involves writing code to handle data, process user inputs, and generate dynamic content. A web programmer will rarely, if ever, handle a web development project from end to end. They may build a certain section of a site or troubleshoot bugs. Understanding this difference has been crucial in my career, allowing me to appreciate the depth and breadth of skills required in the world of web creation. It's a reminder of the diverse talents and expertise that come together to make the digital world what it is today. Web development and web programming sound very similar — and they are. But there’s one very important distinction. Web development refers to the overall process of creating websites or web applications, including the project’s design, layout, coding, content creation, and functionality. It involves using a combination of programming languages, tools, and frameworks to bring a website or web application to life. It may also encompass project management activities, such as fielding development requests from stakeholders or freelance clients.

Web Technologies Week 01 CS (INTRO).pptx

ImranAli984725

Microservices + Events + Docker = A Perfect Trio by Docker Captain Chris Rich...

Docker, Inc.

This one is going to be a real crowd pleaser! In this meet-up, we'll be unravelling Kafka, and thankfully we have two of the best resources in the market to help us. MongoDB and Confluent We have a great evening planned for you. Pizza and drinks provided on the night. 5:30 – Arrive. Drinks/food and networking 6:00-6:10 – MC welcome and The Bridge Search Introduction 6:15 Presentation - Powering Microservices with Kafka, Docker, Kubernetes and MongoDB 6:45 Presentation Q&A 6:55 Presentation - Developing Streaming Applications with Kafka and Confluent KSQL 7:25 Presentation Q&A 7:40 Door prize (Google Home Hub Thanks to MongoDB) -8:30 Wrap-up+ Drinks and networking Presentation 1 Sam Harley Senior Solutions Architect www.linkedin.com/in/samharley Presentation - Powering Microservices with Kafka, Docker, Kubernetes and MongoDB Abstract Organisations are building their applications around microservice architectures because of the flexibility, speed of delivery, and maintainability they deliver. This session introduces you to technologies such as Kafka, Docker and Kubernetes, which are driving the microservices revolution. Learn about containers and orchestration, and most importantly, how to exploit them for stateful services such as MongoDB. Presentation 2 Brett Randall Systems Engineer Confluent - APAC www.linkedin.com/in/brettrandall Brett Randall is a Systems Engineer with Confluent in Sydney, Australia. He helps organisations develop their Event Streaming strategy and implementation across the region. Brett has a background in big and fast-data development, open-source, machine-learning and cloud-first development. Outside of work, Brett enjoys sunny bike-rides and harbour sailing. Talk: Developing Streaming Applications with Kafka and Confluent KSQL As we are heading towards the end of the year, we'd love for you to hang around for a few drinks and to get to know the rest of the meet-up members. Thanks to MongoDB for sponsoring the door prize of a Google Home Hub Make sure you bring your business cards for the door. I am looking forward to seeing you in November and feel free to reach out if you have any questions. Cheers Andrew Andrew@TheBridgeSearch.com https://www.meetup.com/Architecting-for-Innovation/events/gvlvkryzmbhb/

Nov 2019 kafka with mongo db and confluent sydney

Andrew Blades

Presented at the Web Meetup Melbourne (November 2017) - "Web Accessibility, UX Approaches, and Lessons Learned from 22 years in Design" Human-centered design and right-time right-context experiences are hugely important for building user-centered web applications. Competing with detailed considerations of the system user are business objectives of speed and value to market. Now, with the convergence of experiences in new technologies such as the Progressive Web, UX approaches such as early stage prototyping and testing, the establishment of accessible front-end design systems and Lean, experimental feedback loops are more important than ever. These UX practices support nimble, collaborative design behaviour and limit system front-end technical as well as design legacy in all that we build in our systems. The goals of these UX approaches are to benefit our users as well as optimise our workflows and human interactions in our teams. https://www.meetup.com/en-AU/the-web/events/244943794/

Convergent Experiences: Why UX Approaches to Designing Modern Web Systems are...

Catherine Hills

Reactive Programming with DDS and RX

sivakkasi

Today, there are several trends that are forcing application architectures to evolve. Users expect a rich, interactive and dynamic user experience on a wide variety of clients including mobile devices. Applications must be highly scalable, highly available and run on cloud environments. Organizations often want to frequently roll out updates, even multiple times a day. Consequently, it’s no longer adequate to develop simple, monolithic web applications that serve up HTML to desktop browsers. In this talk we describe the limitations of a monolithic architecture. You will learn how to use the scale cube to decompose your application into a set of narrowly focused, independently deployable back-end services and an HTML 5 client. We will also discuss the role of technologies such as Spring and AMQP brokers. You will learn how a modern PaaS such as Cloud Foundry simplifies the development and deployment of this style of application.

Decomposing applications for deployability and scalability(SpringSource webinar)

Chris Richardson

2016 Conduit Program

STC-Philadelphia Metro Chapter

Ähnlich wie A pattern language for microservices (#SFMicroservices) (20)

A pattern language for microservices

A pattern language for microservices - Chris Richardson

Code Freeze 2018: There is no such thing as a microservice!

The microservice architecture: what, why, when and how?

Using patterns and pattern languages to make better architectural decisions

At the Trailhead with Matt Stine

TDC2020 - The microservice architecture: enabling rapid, reliable, frequent a...

UGIdotNET App Modernisation Keynote

Intelligent Microcontent: At the Point of Content Convergence | Rob Hanna

How To be a Backend developer

Dark Energy, Dark Matter and the Microservices Patterns?!

PRESENTATION ON PROJECT REPORT

Reasons Why .NET framework is Most Demanding in 2023?

Web Technologies Week 01 CS (INTRO).pptx

Microservices + Events + Docker = A Perfect Trio by Docker Captain Chris Rich...

Nov 2019 kafka with mongo db and confluent sydney

Convergent Experiences: Why UX Approaches to Designing Modern Web Systems are...

Reactive Programming with DDS and RX

Decomposing applications for deployability and scalability(SpringSource webinar)

2016 Conduit Program

Mehr von Chris Richardson

A common microservice architecture anti-pattern is more the merrier. It occurs when an organization team builds an excessively fine-grained architecture, e.g. one service-per-developer. In this talk, you will learn about the criteria that you should consider when deciding service granularity. I'll discuss the downsides of a fine-grained microservice architecture. You will learn how sometimes the solution to a design problem is simply a JAR file.

More the merrier: a microservices anti-pattern

Chris Richardson

This is a talk I gave at YOW! London 2022. Let's imagine that you are responsible for an aging monolithic application that's critical to your business. Sadly, getting changes into production is a painful ordeal that regularly causes outages. And to make matters worse, the application's technology stack is growing increasingly obsolete. Neither the business nor the developers are happy. You need to modernize your application and have read about the benefits of microservices. But is the microservice architecture a good choice for your application? In this presentation, I describe the dark energy and dark matter forces (a.k.a. concerns) that you must consider when deciding between the monolithic and microservice architectural styles. You will learn about how well each architectural style resolves each of these forces. I describe how to evaluate the relative importance of each of these forces to your application. You will learn how to use the results of this evaluation to decide whether to migrate to the microservice architecture.

YOW London - Considering Migrating a Monolith to Microservices? A Dark Energy...

Chris Richardson

Dark energy and dark matter are useful metaphors for the repulsive forces, which encourage decomposition into services, and the attractive forces, which resist decomposition. You must balance these conflicting forces when defining a microservice architecture including when designing system operations (a.k.a. requests) that span services. In this talk, I describe the dark energy and dark matter forces. You will learn how to design system operations that span services using microservice architecture collaboration patterns: Saga, Command-side replica, API composition, and CQRS patterns. I describe how each of these patterns resolve the dark energy and dark matter forces differently.

Dark energy, dark matter and microservice architecture collaboration patterns

Chris Richardson

It sounds dull but good architecture documentation is essential. Especially when you are actively trying to improve your architecture. For example, I spend a lot time helping clients modernize their software architecture. More often than I like, I’m presented with a vague and lifeless collection of boxes and lines. As a result, it’s sometimes difficult to discuss the architecture in a meaningful and productive way. In this presentation, I’ll describe techniques for creating minimal yet effective documentation for your application’s microservice architecture. In particular, you will learn how documenting scenarios can bring your architecture to life.

Scenarios_and_Architecture_SkillsMatter_April_2022.pdf

Chris Richardson

Rapid, reliable, frequent and sustainable software development requires an architecture that is loosely coupled and modular. Teams need to be able complete their work with minimal coordination and communication with other teams. They also need to be able keep the software’s technology stack up to date. However, the microservice architecture isn’t always the only way to satisfy these requirements. Yet, neither is the monolithic architecture. In this talk, I describe loose coupling and modularity and why they are is essential. You will learn about three architectural patterns: traditional monolith, modular monolith and microservices. I describe the benefits, drawbacks and issues of each pattern and how well it supports rapid, reliable, frequent and sustainable development. You will learn some heuristics for selecting the appropriate pattern for your application.

iSAQB gathering 2021 keynote - Architectural patterns for rapid, reliable, fr...

Chris Richardson

To deliver a large complex application rapidly, frequently and reliably, you often must use the microservice architecture. The microservice architecture is an architectural style that structures the application as a collection of loosely coupled services. One challenge with using microservices is that in order to be loosely coupled each service has its own private database. As a result, implementing transactions and queries that span services is no longer straightforward. In this presentation, you will learn how event-driven microservices address this challenge. I describe how to use sagas, which is an asynchronous messaging-based pattern, to implement transactions that span services. You will learn how to implement queries that span services using the CQRS pattern, which maintain easily queryable replicas using events.

Events to the rescue: solving distributed data problems in a microservice arc...

Chris Richardson

Delivering large, complex software rapidly, frequently and reliably requires a loosely coupled organization. DevOps teams should rarely need to communicate and coordinate in order to get work done. Conway's law states that an organization and the architecture that it develops mirror one another. Hence, a loosely coupled organization requires a loosely coupled architecture. In this presentation, you will learn about design-time coupling in a microservice architecture and why it's essential to minimize it. I describe how to design service APIs to reduce coupling. You will learn how to minimize design-time coupling by applying a version of the DRY principle. I describe how key microservices patterns potentially result in tight design time coupling and how to avoid it.

QConPlus 2021: Minimizing Design Time Coupling in a Microservice Architecture

Chris Richardson

Microservices - an architecture that enables DevOps (T Systems DevOps day)

Chris Richardson

DDD SoCal: Decompose your monolith: Ten principles for refactoring a monolith...

Chris Richardson

Decompose your monolith: Six principles for refactoring a monolith to microse...

Chris Richardson

Overview of the Eventuate Tram Customers and Orders application

Chris Richardson

#DevNexus202 Decompose your monolith

Chris Richardson

The microservice architecture is becoming increasing important. But what is it exactly? Why should you care about microservices? And, what do you need to do to ensure that your organization uses the microservice architecture successfully? In this talk, I’ll answer these and other questions using shapes as visual metaphors. You will learn about the motivations for the microservice architecture and why simply adopting microservices is insufficient. I describe essential characteristics of microservices, You will learn how a successful microservice architecture consist of loosely coupled services with stable APIs that communicate asynchronous. I will cover strategies for effectively testing microservices.

JFokus: Cubes, Hexagons, Triangles, and More: Understanding Microservices

Chris Richardson

YOW! Perth 2019 presentation The microservice architecture is becoming increasing important. But what is it exactly? Why should you care about microservices? And, what do you need to do to ensure that your organization uses the microservice architecture successfully? In this talk, I’ll answer these and other questions using shapes as visual metaphors. You will learn about the motivations for the microservice architecture and why simply adopting microservices is insufficient. I describe essential characteristics of microservices, You will learn how a successful microservice architecture consist of loosely coupled services with stable APIs that communicate asynchronous. I will cover strategies for effectively testing microservices.

YOW! Perth: Cubes, Hexagons, Triangles, and More: Understanding the Microserv...

Chris Richardson

The services in a microservice architecture must be loosely coupled and so cannot share database tables. What’s more, two-phase commit (aka a distributed transaction) is not a viable option for modern applications. Consequently, a microservices application must use the Saga pattern, which maintains data consistency using a series of local transactions. In this presentation, you will learn how sagas work and how they differ from traditional transactions. We describe how to use sagas to develop business logic in a microservices application. You will learn effective techniques for orchestrating sagas and how to use messaging for reliability. We will describe the design of a saga framework for Java and show a sample application.

MicroCPH - Managing data consistency in a microservice architecture using Sagas

Chris Richardson

GotoChgo 2019: Not Just Events: Developing Asynchronous Microservices

Chris Richardson

The microservice architecture functionally decomposes an application into a set of services. Each service has its own private database that’s only accessible indirectly through the services API. Consequently, implementing queries and transactions that span multiple services is challenging. In this presentation, you will learn how to solve these distributed data management challenges using asynchronous messaging. I describe how to implement transactions using sagas, which are sequences of local transactions, coordinated using messages. You will learn how to implement queries using Command Query Responsibility Segregation (CQRS), which uses events to maintain replicas. I describe how to use event sourcing, which is an event-centric approach to business logic and persistence, in a microservice architecture.

YOW2018 - Events and Commands: Developing Asynchronous Microservices

Chris Richardson

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More the merrier: a microservices anti-pattern

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Scenarios_and_Architecture_SkillsMatter_April_2022.pdf

iSAQB gathering 2021 keynote - Architectural patterns for rapid, reliable, fr...

Events to the rescue: solving distributed data problems in a microservice arc...

QConPlus 2021: Minimizing Design Time Coupling in a Microservice Architecture

Microservices - an architecture that enables DevOps (T Systems DevOps day)

DDD SoCal: Decompose your monolith: Ten principles for refactoring a monolith...

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Overview of the Eventuate Tram Customers and Orders application

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JFokus: Cubes, Hexagons, Triangles, and More: Understanding Microservices

YOW! Perth: Cubes, Hexagons, Triangles, and More: Understanding the Microserv...

MicroCPH - Managing data consistency in a microservice architecture using Sagas

GotoChgo 2019: Not Just Events: Developing Asynchronous Microservices

YOW2018 - Events and Commands: Developing Asynchronous Microservices

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Data spaces in distributed environments should be allowed to evolve in agile ways providing data space owners with large flexibility about which data they store. Agility and heterogeneity, however, jeopardize data exchanges because representations may build on varying ontologies and data consumers may not rely on the semantic correctness of their queries in the context of semantically heterogeneous, evolving data spaces. Graph data spaces are one example of a powerful model for representing and querying data whose semantics may change over time. To assert and enforce conditions on individual graph data spaces, shape languages (e.g SHACL) have been developed. We investigate the question of how querying and programming can be guarded by reasoning over SHACL constraints in a distributed setting and we sketch a picture of how a future landscape based on semantically heterogeneous data spaces might look like.

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A pattern language for microservices (#SFMicroservices)

1. @crichardson A pattern language for microservices Chris Richardson Founder of Eventuate.io Founder of the original CloudFoundry.com Author of POJOs in Action @crichardson chris@chrisrichardson.net http://microservices.io http://eventuate.io http://plainoldobjects.com

2. @crichardson Presentation goal Why patterns and pattern languages? A pattern language for microservices

3. @crichardson About Chris

4. @crichardson About Chris Consultant and trainer focusing on modern application architectures including microservices (http://www.chrisrichardson.net/)

5. @crichardson About Chris Founder of a startup that is creating a platform that makes it easier for developers to write transactional microservices (http://eventuate.io)

6. @crichardson For more information http://learnmicroservices.io

7. @crichardson

8. @crichardson Agenda Why a pattern language for microservices? An overview of the microservices pattern language

9. @crichardson In 1986… http://en.wikipedia.org/wiki/Fred_Brooks

10. @crichardson Yet almost 30 years later developers are still passionately arguing over “silver bullets”

11. @crichardson Today’s silver bullets

12. @crichardson Human beings are emotional Decide using emotions Rationalize with our intellect http://en.wikipedia.org/wiki/Mahout

13. @crichardson Gartner Hype Cycle http://upload.wikimedia.org/wikipedia/commons/b/bf/Hype-Cycle-General.png It’s awesome It’s not awesome Trade-offs understood

14. @crichardson We need a better way to discuss and think about technology

15. @crichardson What’s a pattern? Reusable solution to a problem occurring in a particular context

16. @crichardson The structure of a pattern = Great framework for discussing and thinking about technology

17. @crichardson The structure of a pattern Resulting context aka the situation Name Context Problem Related patterns (conﬂicting) issues etc to address Forces Solution

18. @crichardson Resulting context Beneﬁts Drawbacks Issues to resolve

19. @crichardson Related patterns Alternative solutions Solutions to problems introduced by this pattern

20. Pattern language A collection of related patterns that solve problems in a particular domain Relationships Pattern A results in a context that has a problem solved by Pattern B Patterns A and B solve the same problem Pattern A is a specialization of pattern B http://en.wikipedia.org/wiki/A_Pattern_Language Access to Water Promenade Local townhall Intimacy gradient Light on two sides

21. @crichardson Meta-pattern: Use the pattern format to describe technology Problem: How to talk/reason about technology? Solution: Use the pattern format Beneﬁt: More objective Drawback: Less exciting Context: Emotional software development culture Related patterns: It’s awesome!

22. @crichardson Agenda Why a pattern language for microservices? An overview of the microservices pattern language

23. @crichardson Microservices pattern language http://microservices.io/

24. @crichardson How to architect your application?

25. @crichardson How to deploy your application?

26. @crichardson How do services communicate?

27. @crichardson How does a service know another’s network location

28. @crichardson How do an application’s clients communicate with the services?

29. @crichardson How to simplify the development of services?

30. @crichardson What is the database architecture?

31. @crichardson How to maintain data consistency across services?

32. @crichardson Summary: Patterns and pattern languages are a great way to … Think about technology Discuss technology Apply technology

33. @crichardson Summary: The Microservices pattern language is a great way to … Think about microservices Discuss microservices Apply microservices (or not)

34. @crichardson @crichardson chris@chrisrichardson.net http://learnmicroservices.io Questions?

A pattern language for microservices (#SFMicroservices)

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