enterprise applications, microservices and sap hana cloud platform

.consulting .solutions .partnership

Enterprise Applications, Microservicesand SAP HANA Cloud Platform

Enterprise Applications, Microservices and SAP HANA Cloud Platform

1) © NASA / James Blair - http://spaceflight.nasa.gov/gallery/images/shuttle/sts-128/html/jsc2009e156744.html, Public Domain: https://commons.wikimedia.org/w/index.php?curid=7850400

2) © Hugovanmeijeren - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=10282772

Enterprise Applications

© msg | October 2016 | 4th IT Conference on SAP Technologies 2

Enterprise application software includes content, communication, and collaboration software; CRM software;

digital and content creation software, ERP software; office suites; project and portfolio management; and SCM

software. (Source: Gartner IT Directory)

Datacenter RealityManagement View

1) 2)

Evolution of an Enterprise Application



Global Scale

Cloud ReadyMobile First Paradigm

Simple Solution

Powerful & Complex Application


Challenges for Enterprise Applications

4

Enterprise

Application

© msg | October 2016 | 4th IT Conference on SAP Technologies

Performance & Elasticity(Dynamically) scale an

application to meet peak

performance needs

IntegrationConnect the application to

internal and external/ cloud

systems

CollaborationCommunication as part

of business objects

Extensibility/ ChangeAdapt a solution to meet

business needs and remain a

standard application

nonetheless

OperationsDeploying several versions,

patching, monitoring.

Reducing operating cost.

DevOps approaches.

5


… an n-dimensional Challenge

• System landscapes with applications

based on different technology are very

common.

• Business driven integration is more

likely to succeed.

• Web Services and CORBA were first

approaches for a technology agnostic

interface.


• Some applications may stay on premise

forever. (Mission-critical apps)

• Today, we consider an application very

often either on premise or in the cloud.

• Hybrid cloud scenarios evolve more and

more.


Digital Transformation – Innovate, Be Fast, Differenciate


Cloud as an Enabler

Flexibility

Scalability

Big Data/ Analytics

Mobility/ Networks

ImaginePrototypeBuildGo Live


So, let‘s start an interesting journey dealing with the challenges !!!


„I don‘t have (the one) solution – but I admire the problem!“


© https://flic.kr/p/3DNDPu

Microservices – The next big thing or the next zoo?



Defining Microservices by Features

9

(Eberhard Wolf, Microservices – Flexible Software Architecture.)


… communication

REST or messaging protocols.

… technology agnostic

no restriction on the programming

language or the platform for each

microservice.

… a modularization concept

divide large software systems.

This influences the organization

and development of software

systems.

… separate deployment

changes can be taken into

production independently of

changes to other microservices

… own storage

Separate database, multiple

databases, or at least own

DB schema … loosely coupled/ resiliant

can handle failure or changes to a

distributed system.

Microservices focus on a system and not on

the whole IT of a company.

… UI

Microservices often come with

UIs or can easily be integrated in

an UI.

What does a Microservice look like?



Onion Architecture



Onion Architecture – Domain Model



1. Implementing Domain-Driven Design – Vaughn Vernon, 2013

• Contains the definition of the

domain model

• Incorporates both behavior and

data

• Is not specific to any technology Domain

Model

Domain Model

Onion Architecture – Domain Services



Domain Services

Domain Model

• Contains domain services, which

encapsulate business logic

Domain

Model


Onion Architecture – Application Layer




Application• Exposes domain services through

interfaces

(e.g. REST, OData)

• Provides infrastructure adapters

(e.g. repository implementations)

Domain Services

Domain Model

Domain

Model

Onion Architecture – UI/Infrastructure Layers




• Uses APIs provided by the

application layer to call domain

services

User Interface

Infrastructure• Contains adapters for various

technology concerns

(e.g. database, logging, etc. )

Application

Domain Services

Domain Model

Domain

Model

How big is a microservice?



17


Microservices in Action


18




Microservices as Integration

Technology

Mobile Apps

Microservices power small

apps with dedicated information

or provide services

Microservices as Enhancement

Strategy

Microservice Applications

A whole application is build

with microservices


We don‘t make mistakes – we learn!

19© msg | October 2016 | 4th IT Conference on SAP Technologies

MicroserviceFILES ARE UPLOADED

• Microservices focus on UI and a

distributed system

• Scalability/elasticity is a goal

• Microservices don‘t favour EAI/ESB

solutions

• It changes the development organization

SOATWEETS ARE SEND

• SOA tries to find a solution for the

enterprise

• SOA is about governance

• SOA does not care about the individual

service consumer – SOA tries to answer

the question, if there is a generic data

model and a generic interface

Microservices – A little look at the workshop



© https://www.flickr.com/photos/mtneer_man/9207206499


Business Applications based on SAP HANA Cloud Platform


Platform Services

SAP HANA Cloud Platform (PaaS)

Runtimes

Data & Storage Services

Deve

lop

ment

Op

era

tio

ns

IAAS

ASE

UX

Security

Mobile

Integration

Analytics

IoT

Collaboration

Java

XSJS

HTML5

Service Enablement | API Management

Business Services

Node.js

Other

Big Data Services

HANA / Vora

Redis

PostgreSQL MongoDBHadoop

On-Premise /

Managed

Cloud

SAP HANA Cloud Platform – Current & Planned InnovationsSource: SAP SE

SaaS/

Public Cloud

Solutions

Applications

Commerce Loaylty Mgmt. Billing …

22


SAP HANA Cloud Platform – Selected Business Value

Reduce operating expenses

This text can be replaced with your own text. This is a placeholder text.

01

Agility

Companies are looking for

• cost savings,

• strategic advantages,

and capabilities for meeting

current (business) requirements.

This text can be replaced with your own text. This is a placeholder text.

Eliminate peak load sizing

Flexibility


High availability


How do I build an

enterprise

application ?

… better get API

Management in place.

Deployment, Billing,

Monitoring, Traffic

Management, Versioning, …

24


Enterprise Applications and Microservices


One Microservice – one

DB

Domain-driven Design

Use SAP HANA

Domain-driven Design

(Reality-driven)

Use of integration

servers

Right-size

microservices

Strict

Approach

Relaxed

Approach

No integration servers

25




Microservices as Integration

Technology

Mobile Apps

Microservices power small

apps with dedicated information

or provide services

Microservices as Enhancement

Strategy

Microservice Applications

A whole application is build

with microservices


Microservices Implementation Challenges


• Basic Security

Logging

• Hexagonal Architecture Rest/ OData

Web Services

JMS

• Advanced Topics Circuit Breaker

Throttling

Retry

Billing

Management


Integration Scenarios


Connect to

Private Cloud/

Applications

Extend

S/4HANA

Connect to

S/4HANA

(Public Cloud)

SAP HANA

Cloud Platform


Identity Management


Identity Provider

FIORI, Microservices, HDB

SAP HANA Cloud Platform

Client

Delegate Authentification


Microservices – Persistence (e.g. JAVA)


HANA Native App

HANASAP ASE

JAVA App

JPA / JDBC

SAP HANA Cloud Platform


Microservice Example – Bringing it all together


Example application: msg.EventManagement



Organize• Timeline

• To-Do List

• Attachments

• Contacts

Promote• on SAP JAM

• via Email

• on Social media

Browse• Upcoming events

• Calendar


Which technology is best suited?


• Open to any technology supported by the landscape.

Platform Services

SAP HANA Cloud Platform (PaaS)

Runtimes

Data & Storage Services

De

ve

lop

ment

Op

era

tio

ns

IAAS

ASE HANA

UX

Security

Mobile

Integration

Analytics

IoT

CollaborationJava

XSJS

HTML5

Service Enablement | API Management

SAP Data Centers

Applications

SAP HANA Cloud Platform – Current Architecture


Characteristics of the development team


Multi-disciplinary

Autonomous

DevOps

Self-sufficient Team


Mobile Consumption of Microservices


HCP Mobile

Services

Cloud Apps

(OData)

Cloud Connector NW Gateway

SAP S/4HANA

SAP Appl.SAP HANA Cloud Platform

.consulting .solutions .partnership

Dr. Michael Goetzfried

Principal IT [email protected]

msg systems ag (Headquarters)

Robert-Buerkle-Str. 1, 85737 Ismaning/Munich

Germany

www.msg-systems.com

Tudor Riscutia

Senior IT [email protected]