preparing for a future microservices journey using wardley ...€¦ · wardley maps – patterns...

Preparing For a FutureMicroservices JourneyUsing Wardley Maps

Susanne KaiserIndependent Tech Consultant

@suksr

DDD &

Source: https://www.marketresearchfuture.com/reports/microservices-architecture-market-3149

Microservices Architecture MarketKey Trends

Loose Coupling

Deployment

Domain Driven Design2016 2017 2018 2019 2020 2021 2022 2023

USD ~33 BillionM

arke

t Size

(USD

Billi

on)

CAGR ~17%

Source: https://www.infoq.com/articles/architecture-trends-2019/

Source: https://en.wikipedia.org/wiki/Hype_cycle#/media/File:Gartner_Hype_Cycle.svg

Microservices ?

Gartner Hype Cycle

@suksr

@suksr

High cohesion within a service

Loose coupling between services

@suksr

Data Store

Data Store

@suksr

Config./Setup

Maintenance

Integration

Hardware

O/S

Virtualization

Container

Runtime

@suksr

API

Hardware

O/S

Virtualization

Container

Runtime

@suksr

API

Hardware

O/S

Virtualization

Container

Runtime

@suksr

API API

Integration

API

Hardware

O/S

Virtualization

Container

Runtime

@suksr

API API

Security

API

API API Service Discovery

1. Register

3. Connect

2. Discover

Hardware

O/S

Virtualization

Container

Runtime

@suksr

API


Load-Balancer

Hardware

O/S

Virtualization

Container

Runtime

@suksr

API


API

Timeout-Handling

Hardware

O/S

Virtualization

Container

Runtime

@suksr

Load-Balancer

API


API

Timeout-Handling

Retries

Hardware

O/S

Virtualization

Container

Runtime

@suksr

Load-Balancer

API


API

Timeout-Handling

Retries

Idempotency

Hardware

O/S

Virtualization

Container

Runtime

@suksr

Load-Balancer

API


API

Timeout-Handling

RetriesBulk-heads

Hardware

O/S

Virtualization

Container

Runtime

@suksr

Load-Balancer

Idempotency

API


API

Timeout-Handling

RetriesBulk-Heads

Circuit Breaker

Hardware

O/S

Virtualization

Container

Runtime

@suksr

Load-Balancer

Idempotency

API


API

Timeout-Handling

RetriesBulk-heads

Circuit Breaker

Message Broker

Hardware

O/S

Virtualization

Container

Runtime

@suksr

Load-Balancer

Idempotency

API


Load-Balancer

API

Timeout-Handling

RetriesBulk-heads Circuit Breaker

Message Broker

API-Gateway

Hardware

O/S

Virtualization

Container

Runtime

@suksr

Idempotency

API


API

Timeout-Handling

RetriesBulk-heads

Message Broker

API-Gateway

Circuit Breaker

Config-Mngmt.

Hardware

O/S

Virtualization

Container

Runtime

@suksr

Load-Balancer

Idempotency

API


API

Timeout-Handling

RetriesBulk-heads

Message Broker

API-Gateway

Circuit Breaker

Config-Mngmt.

Monitoring

Log Aggreation

Metrics

Distributed Tracing

Health ChecksHardware

O/S

Virtualization

Container

Runtime

@suksr

Load-Balancer

Idempotency

API


API

Timeout-Handling

RetriesBulk-heads

Message Broker

API-Gateway

Circuit Breaker

Config-Mngmt.

Monitoring

Log Aggreation

Metrics

Distributed Tracing

Health Checks

SCMCheckout TestBuild

CI/CD PipelineDeploy

Hardware

O/S

Virtualization

Container

Runtime

@suksr

Load-Balancer

Idempotency

Recovery

API


API

Timeout-Handling

RetriesBulk-heads

Message Broker

API-Gateway

Circuit Breaker

Config-Mngmt.

Monitoring

Log Aggreation

Metrics

Distributed Tracing

Health Checks

SCMCheckout TestBuild

CI/CD PipelineDeploy

Hardware

O/S

Virtualization

Container

Runtime

Backup@suksr

Load-Balancer

Scaling

Idempotency

µService

@suksr

Hardware Data Store

API API-Gateway Service Discovery Load-BalancerMessage Broker

Timeout-Handling Retries Idempotency Bulkheads Circuit Breaker

Config-Mngmt.Monitoring Log Aggreation Metrics Distributed

TracingHealth Checks

SCM

O/SVirtualization Container Runtime

Checkout TestBuild CI/CD Pipeline

Deploy

µService

Backup Recovery

@suksr

Scaling

Maintenance

Integration

Security

Domain Driven Design (DDD) – TerminologyStrategic DesignTactical Design

Bounded ContextUbiquitous Language

Core SubdomainSupporting SubdomainGeneric Subdomain

Problem SpaceSolution Space

Context MapsAnti-Corruption LayerShared KernelOpen Host ServiceSeparate WaysPartnershipCustomer-SupplierConformist

Domain ModelEntity Value ObjectAggregateRepositoryFactoryApplication ServiceDomain ServiceDomain Event

@suksr

Hardware Data Store

API API-Gateway Service Discovery Load-BalancerMessage Broker

Timeout-Handling Retries Idempotency Bulkheads Circuit Breaker

Config-Mngmt.Monitoring Log Aggreation Metrics Distributed

TracingHealth Checks

SCM

O/SVirtualization Container Runtime

Checkout TestBuild CI/CD Pipeline

Deploy

µService

Backup Recovery

Scaling

Maintenance

Integration

Security

Strategic DesignTactical Design

Problem SpaceSolution Space

Bounded ContextUbiquitous Language

Core SubdomainSupporting SubdomainGeneric Subdomain

Context MapsAnti-Corruption LayerShared KernelOpen Host ServiceSeparate WaysPartnershipCustomer-SupplierConformist

Domain ModelEntity Value ObjectAggregateRepositoryFactoryApplication ServiceDomain ServiceDomain Event

@suksr

Valu

e Ch

ainIn

visib

leVi

sible

Evolution

Visualisation of a value chain’s evolution

Genesis Custom-Built Product (+rental) Commodity (+utility)

Posit

ion

Movement

Wardley Maps BY SIMON WARDLEY

Uncharted Industrialised

@suksr

Wardley Maps – VALUE CHAIN

Who are your users?

Valu

e Ch

ainIn

visib

leVi

sible

@suksr


Who are your users?

What are your users’ needs?

Valu

e Ch

ainIn

visib

leVi

sible

@suksr


Who are your users?

What are your users’ needs?

What are the components/activities to fulfill your users’ needs incl. dependencies?

Valu

e Ch

ainIn

visib

leVi

sible

Posit

ion

@suksr

Wardley Maps – LANDSCAPE

Valu

e Ch

ainIn

visib

leVi

sible

Evolution

Components alongevolution axes


Posit

ion

Movement

@suksr

Valu

e Ch

ainIn

visib

leVi

sible

Genesis Custom-Built Product (+rental) Commodity (+utility)Evolution

Everything evolves

Past Current Future

Supply CompetitionDemand Competition


Wardley Maps – PATTERNS

Movement

@suksr

Valu

e Ch

ainIn

visib

leVi

sible


Everything evolves

Past Current Future

Continuous adaption


Movement

Evolution @suksr

Valu

e Ch

ainIn

visib

leVi

sible


Past Current Future

Characteristics changeUncharted

Undefined marketUncertain

UnpredictableRare

Poorly understood

Forming marketLearning on use

Increasing understandingSlowly increasing

consumptionRapid increases in

learning

Growing marketLearning on operationIncreasing educationRapidly increasing

consumptionRapid increase in use

Mature marketKnown / accepted

StableWidespread and stabilising

Commonly understood(in term of use)

Industrialised


Movement

@suksr

Valu

e Ch

ainIn

visib

leVi

sible


Efficiency enables innovation



Movement

@suksr

Valu

e Ch

ainIn

visib

leVi

sible





Movement

@suksr

Valu

e Ch

ainIn

visib

leVi

sible


Wardley Maps – PRINCIPLES

Use appropriate methodsper evolution stage

Build in-houseUse/buy off-the-shelf product

Outsource to utility suppliers

@suksr

Valu

e Ch

ainIn

visib

leVi

sible



Wardley Maps – PRINCIPLES Build in-houseUse/buy off-the-shelf product


@suksr

Valu

e Ch

ainIn

visib

leVi

sible



Wardley Maps – PRINCIPLES Build in-house Use/buy off-the-shelf product


@suksr

Valu

e Ch

ainIn

visib

leVi

sible


Know your users &focus on user needs

Wardley Maps – PRINCIPLES Build in-house / AgileUse/buy off-the-shelf product / Lean

Outsource to utility suppliers / Six Sigma

@suksr

Domain Driven Design

Ubiquitous Language

Domain Knowledge

Understanding the problem domain firstbefore solving it

Problem Domain

Domain Experts

Development Teams

Collaboration

@suksr

Valu

e Ch

ainIn

visib

leVi

sible


DDD & Wardley Maps Problem Domain

Strategic Design

DDD Patterns & Practices

Tactical Design

@suksr

Stra

tegi

c Des

ign

Tact

ical D

esig

n

Valu

e Ch

ainIn

visib

leVi

sible



Strategic Design


Tactical Design

Analysing the business domain

Discovering Subdomains

Problem Space

@suksr

Prob

lem

Spa

ceSt

rate

gic D

esig

nTa

ctica

l Des

ign

Analy

se &

Disc

over

Valu

e Ch

ainIn

visib

leVi

sible



Strategic Design


Tactical Design



Problem Space

Decomposing into modular components (Bounded Contexts (BC))

Mapping interaction patterns between BC (Context Maps)

Solution Space

@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

ace

Stra

tegi

c Des

ign

Tact

ical D

esig

n

Analy

se &

Disc

over

Deco

mpo

se &

Map High-Level

Design Decisions

Valu

e Ch

ainIn

visib

leVi

sible



Strategic Design


Tactical Design

Architecting a solution fitting the problem domain as closely as possible

Provides building blocks to implement domain model



Problem Space

Decomposing into modular components (Bounded Contexts (BC)

Mapping interaction patterns between BC (Context Maps)

Solution Space

@suksr

Solution Space

Prob

lem

Spa

ceSo

lutio

n Sp

ace

Stra

tegi

c Des

ign

Tact

ical D

esig

n

Analy

se &

Disc

over

Arch

itect

&

Impl

emen

t

High-Level Design Decisions

Low-Level Design Decisions

Deco

mpo

se &

Map

Analy

se &

Disc

over

Valu

e Ch

ainIn

visib

leVi

sible


Distilling the problemdomain & discovering the

core subdomain

DDD & Wardley Maps

Core Subdomain

Problem DomainSTRATEGIC DESIGN (PROBLEM SPACE)

Supporting Subdomain

Generic Subdomain

@suksr

Prob

lem

Spa

ceSt

rate

gic D

esig

n

Valu

e Ch

ainIn

visib

leVi

sible



core subdomain

DDD & Wardley Maps

Core Subdomain

Problem Domain

Competitive advantage ComplexChanges oftenBuild in-house

STRATEGIC DESIGN (PROBLEM SPACE) Supporting Subdomain

Generic Subdomain

@suksr

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

n



Valu

e Ch

ainIn

visib

leVi

sible



core subdomain

DDD & Wardley Maps

Core Subdomain

Problem Domain


No competitive advantage Quite simpleDoes not change oftenPrefer to buy/use off-the-shelf


Generic Subdomain

@suksr

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

n



Valu

e Ch

ainIn

visib

leVi

sible



core subdomain

DDD & Wardley Maps

Core Subdomain

Problem Domain


No competitive advantage Quite simpleDoes not change oftenPrefer to buy/use off-the-shelf

No competitive advantage Generally complexDoes not change oftenBuy/use off-the-shelf / outsource


Generic Subdomain

@suksr

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

n



Deco

mpo

se &

Map

Analy

se &

Disc

over

Valu

e Ch

ainIn

visib

leVi

sible


Model Driven DesignDDD & Wardley MapsSTRATEGIC DESIGN (SOLUTION SPACE)

Development Teams

Domain Experts

Ubiquitous Language

Analysis Model

Code Model

Domain Model

Core Subdomain


Generic Subdomain

Problem Domain

abstracted by

@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

ace

Stra

tegi

c Des

ign

Valu

e Ch

ainIn

visib

leVi

sible


Bounded ContextsDDD & Wardley MapsSTRATEGIC DESIGN (SOLUTION SPACE)

Core Subdomain


Generic Subdomain

Problem Domain

Linguistic/semantic boundary

Ownership boundary

Model integrity boundary

Physical boundary

Different architectural patterns per context possible

@suksr

Microservice candidates

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

nSo

lutio

n Sp

ace

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Submissions

Manage Event

Organiser

Build & PublishSchedule

Communicate w/ Speakers

Signup/Signin

Know your users &focus on user needs

Submit Session

DDD & Wardley MapsSTRATEGIC DESIGN (PROBLEM SPACE)

Speaker

@suksr

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

n

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley MapsSTRATEGIC DESIGN (PROBLEM SPACE) Discovering

subdomainsSupporting GenericCore

@suksr

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

n

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley MapsSTRATEGIC DESIGN (SOLUTION SPACE)

Supporting GenericCore

Event Evaluation AccountSchedule MessageSession

Domain Models

@suksr

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSo

lutio

n Sp

ace

Stra

tegi

c Des

ign

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley Maps


Event Evaluation AccountSchedule Message

Speaker

Session

CfP

STRATEGIC DESIGN (SOLUTION SPACE)Domain Models

@suksr

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

nSo

lutio

n Sp

ace

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley Maps


Event Evaluation AccountSchedule Message

Speaker Profile

Submitted Session

CfP Settings

RecipientOpen CfP Evaluated

SessionScheduled Session

STRATEGIC DESIGN (SOLUTION SPACE)Domain Models

@suksr

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

nSo

lutio

n Sp

ace

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley Maps


STRATEGIC DESIGN (SOLUTION SPACE)Bounded Contexts



Event Evaluation AccountSchedule MessageSubmitted Session

CfP Settings

RecipientOpen CfP Evaluated

SessionScheduled Session

Speaker Profile SessionEvaluation

SubmissionHandling

EventMngmnt.

ScheduleMngmnt.

Messaging

Account Handling

@suksr

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

nSo

lutio

n Sp

ace

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley Maps


STRATEGIC DESIGN (SOLUTION SPACE)

SubmissionHandling

EventMngmnt.

SessionEvaluation

Messaging Account Handling

ScheduleMngmnt.

Bounded Contexts

Ownership boundary



@suksr

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

nSo

lutio

n Sp

ace

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley Maps


STRATEGIC DESIGN (SOLUTION SPACE)

SubmissionHandling

EventMngmnt.

SessionEvaluation


ScheduleMngmnt.

Bounded Contexts

Ownership boundary



Physical boundary

SCM

Data store

CI/CD

Artefact

@suksr

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSt

rate

gic D

esig

nSo

lutio

n Sp

ace

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley Maps


TACTICAL DESIGN

SubmissionHandling

EventMngmnt.

SessionEvaluation


ScheduleMngmnt.

Architectural Patterns

Architectural patterns can differ per Bounded Context, e.g.

Layered Architecture

Hexagonal Architecture

CQRS

@suksr

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSo

lutio

n Sp

ace

Stra

tegi

c Des

ign

Tact

ical D

esig

n

Arch

itect

&

Impl

emen

t

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley Maps


TACTICAL DESIGN

SubmissionHandling

EventMngmnt.

SessionEvaluation


ScheduleMngmnt.

Business Logic Implementation Patterns

Business logic implementation patterns can differ per Bounded Context, e.g.

Domain Model

Active Record

Transaction Script

@suksr

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSo

lutio

n Sp

ace

Stra

tegi

c Des

ign

Tact

ical D

esig

n

Arch

itect

&

Impl

emen

t

ExampleBC: EVENT MANAGEMENT

Event

create: Eventactivate

reschedulerename

EventIdid: string

Name

create: Namename: string

EventStatusCREATEDACTIVATEDDEACTIVATED

deactivate

Description

create: Description

desc: string

Period

create: Period

start: Dateend: Date

Value Object

Entity

Aggregate Root

Aggregate

@suksr

EventController

MongoDBEventRepository

EventModel

EventApplicationService

EventRepository

POST /events/{id}/activatePOST /events DELETE /events/{id}

InnerOuter

Outside

(Port)

(Adapter)

(Adapter)

(Port)

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley Maps


TACTICAL DESIGN

SubmissionHandling

EventMngmnt.

SessionEvaluation


ScheduleMngmnt.

DDD suits best for the core subdomain

Movement

Build in-house Use/buy off-the-shelf product


- or -- or -

@suksr

- or -

Deco

mpo

se &

Map

Analy

se &

Disc

over

Prob

lem

Spa

ceSo

lutio

n Sp

ace

Stra

tegi

c Des

ign

Tact

ical D

esig

n

Arch

itect

&

Impl

emen

t

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser

Build & Publish Communicate Signup/Signin

Speaker

Submit

Wardley Maps


INFRASTRUCTURE MAPPING

@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l D.

ScheduleSession Event Submission w/ Speakers

SubmissionHandling

EventMngmnt.

SessionEvaluation

ScheduleMngmnt. Messaging Account

Handling

Understand the involved components and their dependencies (position)

Posit

ion

Data Storage

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l D.


SubmissionHandling

EventMngmnt.

SessionEvaluation


Handling


Data StorageSearch Engine

Wardley MapsINFRASTRUCTURE MAPPING

Posit

ionInfra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l D.


SubmissionHandling

EventMngmnt.

SessionEvaluation


Handling



Compute Platform


Posit

ionInfra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l D.


SubmissionHandling

EventMngmnt.

SessionEvaluation


Handling



Compute Platform

VM


Posit

ionInfra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l D.


Data Storage

Search Engine

Compute Platform

VMMovement

Plot components alongevolution axes (movement)and use appropriate methodper evolution stage

SubmissionHandling

EventMngmnt.

SessionEvaluation


Handling




Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l D.


Data Storage

Search Engine

Compute Platform

VM

SubmissionHandling

EventMngmnt.

SessionEvaluation


Handling



Infrastructure & operational complexities


Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l D.


SubmissionHandling

EventMngmnt.

SessionEvaluation


Handling



Data related components & activities

Compute Platform

Data Storage

Search Engine

VM


Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit

DDD & Wardley Maps


TACTICAL DESIGN

@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l D.


SubmissionHandling

EventMngmnt.

SessionEvaluation


Handling



Search Engine

Compute Platform

Data Storage

VM

Service related components & activities

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l D.


SubmissionHandling

EventMngmnt.

SessionEvaluation


Handling



Search Engine

Compute Platform

Data Storage

VM

Service interaction related components &

activities


Infra

stru

ctur

e

command

query

Request-Driven

@suksr

API

API

Service Interactions

command

query

Request-Driven

Message Broker

publish subscribe

Event-Driven

@suksr

API

API


command

query

Message Broker

publish subscribe

command

query

Request-Driven Hybrid

Message Broker

publish subscribe

Event-Driven

@suksr

API

API

API


Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

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ctica

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Search Engine

Compute Platform

Data Storage

VM

Request-driven related components & activities


Submission H. Event M. Session Eval. Schedule M. Messaging Account H.

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

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aceSt

rate

gic D

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Compute Platform

VM



Event-driven & hybrid related components &

activities

Message Broker

Search Engine

Data Storage

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

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Compute Platform

VM



Message Broker

Search Engine

Data Storage

Discuss & plan

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

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ctica

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Compute Platform

VM



Message Broker

Search Engine

Data Storage

Discuss & plan

Open Source Software

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

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OSS

Example

Message Broker

Search Engine Data

StorageCompute Platform

VM

Open Source Software

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

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OSS

Message Broker

Search Engine Data

StorageCompute Platform

VM

Discuss & plan

Offload to cloud hosted services

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

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OSS

Compute Platform VM

DB aaS

SE aaS

MB aaS

Offload to cloud hosted services

ID aaS

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

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OSS

Compute Platform VM

DB aaS

SE aaS

MB aaS

Discuss & plan

Offload to container orchestration platform

ID aaS

Infra

stru

ctur

e

Managed by YOUManaged by PlatformHardware

O/S

Virtualization

Container

Runtime

O/S

Orchestration

µService

Container

Runtime

µService Service Discovery

Load Balancer

Config-Mngmt.

Monitoring

Log Aggreation

Health Checks

Recovery Scaling

@suksr

Container OrchestrationAPI Gateway

Containerized Microservice

Pod

Service

Volume

Deployment

Master Node

Worker NodeWorker Node

Ingress

Deployment Deployment

Container OrchestrationBASIC COMPONENTS OF KUBERNETES

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

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n Sp

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rate

gic D

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OSS

VM

DB aaSMB aaS

Worker Nodes Master Node

SE aaS

Container Orchestrationw/ Kubernetes

Compute Platform

ID aaS

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

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OSS

VM

DB aaSMB aaS


SE aaS


Compute Platform

Pod Deploym. Volume IngressService

New Primitives

ID aaS

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

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OSS

VM

DB aaSMB aaS


SE aaS


Compute Platform

Pod Deploym. Volume IngressServiceSecretStatefulSet

CronJob

JobConfigMap

NetworkPolicy

ReplicaSet

DaemonSet

HorizontalPod Autoscaler

PersistentVolumeClaimEgress

more ...

ID aaS

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

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OSS

VM

DB aaSMB aaS


SE aaS

Compute Platform

Container Orchestration

Discuss & plan

Offload application networking concerns

to a service mesh

ID aaS

Infra

stru

ctur

e

Circuit Breaker Timeout Retries

Kubernetes / Service Mesh

SidecarProxy

Application Networking Concerns

@suksr

Metrics Security

SidecarProxy

Distributed Tracing Log Aggregation

Separation Of ConcernsSERVICE MESH

Proxy Proxy

Microservice Microservice

Policy & Telemetry(Mixer)

Discovery & Configto Proxies

(Pilot)

Config(Galley)

TLS Certs to Proxies

(Citadel)

Data Plane

Control Plane

HTTP, gRPC, TCP

mTLS

Service MeshCOMPONENTS OF ISTIO

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

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VM

DB aaSMB aaS


SE aaSContainer Orchestration

ID aaS

DestinationRule Gateway

ServiceEntry Policy

ServiceRole /-Binding ClusterRbac

Config

VirtualService

Service Mesh

Infra

stru

ctur

e

Valu

e Ch

ainIn

visib

leVi

sible


Evaluate Manage

Organiser


Speaker

Submit


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

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ctica

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VM

DB aaSMB aaS


SE aaSContainer Orchestration

ID aaS

Service Mesh

Discuss & plan

Move to Serverless

Infra

stru

ctur

e

FunctionEvent

Event-Driven Workflow

Hardware Data StoreO/SVirtualization Container Runtime

Fully Managed By Third Party

Ephemeral Function

Pay-per-ExecutionAuto-Scaling

@suksr

triggers

Serverless w/ FaaSCHARACTERISTICS

Lambda

API Gateway

SNS

SQS

DynamoDB

Step Functions

Core AWS Serverless Building Blocks

S3

Kinesis

CloudWatch

Cognito

@suksr

IAM

and more

Serverless AWS BUILDING BLOCKS

ApiGatewayAdapter

DynamoDBAdapter

EventModel


EventRepository

DynamoDB

newEvent

API Gateway

Manage EventOrganiser

Event Management

ApiGatewayAdapter

DynamoDBAdapter

EventModel


EventRepository

Even

tPub

lishe

rSN

STop

icAda

pter

DynamoDB

SNS

newEvent activateEvent

API Gateway

Manage EventOrganiser

Event Management

ApiGatewayAdapter

DynamoDBAdapter

EventModel


EventRepository

Even

tPub

lishe

rSN

STop

icAda

pter

DynamoDB

SNS


API Gateway

Manage Event

DynamoDBAdapter

SessionModel

SessionApplicationService

SessionRepository

DynamoDB

SNSTopicAdaptereventActivated

Organiser

Event Management Session Handling

ApiGatewayAdapter

DynamoDBAdapter

EventModel


EventRepository

Even

tPub

lishe

rSN

STop

icAda

pter

DynamoDB

SNS


API Gateway

Manage Event

ApiGatewayAdapter

DynamoDBAdapter

SessionModel

SessionApplicationService

SessionRepository

DynamoDB

submitSession

API Gateway

Submit Session

SNSTopicAdaptereventActivated

S3Adapter

S3

pictureUploaded

Organiser Speaker

Event Management Session Handling

Valu

e Ch

ainIn

visib

leVi

sible



Manage Event

Organiser



Signup/Signin

Speaker

Submit Session

DDD & Wardley Maps


TACTICAL DESIGN

SubmissionHandling

EventMngmnt.

SessionEvaluation


ScheduleMngmnt.

Build in-house Use/buy off-the-shelf product


@suksr

Prob

lem

Spa

ceSo

lutio

n Sp

ace

Stra

tegi

c Des

ign

Tact

ical D

esig

nServerless w/ FaaS

API Gateway

Lambda DynamoDB S3 SNSCognito

SE aaS

Infra

stru

ctur

e

Serverless Infrastructure Providers

Valu

e Ch

ainIn

visib

leVi

sible


Summary

@suksr

Know your users & user needs

Valu

e Ch

ainIn

visib

leVi

sible


Summary


@suksr

Deco

mpo

se&

Map

Analy

se &

Disc

ov.

Prob

lem

Spa

ceSo

lutio

n Sp

.St

rate

gic D

esig

n


Understand the problem first and

focus on core domain

Valu

e Ch

ainIn

visib

leVi

sible


Summary


@suksr

Deco

mpo

se&

Map

Analy

se &

Disc

ov.

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l Des

ign

Arch

itect

&

Impl

emen

t - or -- or - - or -




DDD suits well for your core domain

Valu

e Ch

ainIn

visib

leVi

sible


Summary


@suksr

Deco

mpo

se&

Map

Analy

se &

Disc

ov.

Prob

lem

Spa

ceSo

lutio

n Sp

aceSt

rate

gic D

esig

nTa

ctica

l Des

ign

Arch

itect

&

Impl

emen

t

Infra

stru

ctur

e





Identify and outsource commodities

Susanne KaiserIndependent Tech Consultant

@[email protected]

preparing for a future microservices journey using wardley ...€¦ · wardley maps – patterns...

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