Talk was delivered at DOAG 2022 Abstract: Integration has always been important and has become more so, especially when we look at IT modernisation programmes. Every company today needs to modernise to remain competitive in the long term. When we talk about modernisation, it is about breaking down monolithic architectures, often into more flexible microservices architectures. When developing new applications, we follow the principles of cloud-native. What does this mean for our integration architecture or what capabilities are expected from modern integration platforms? In this session I will answer these and other questions. I will also show how to design and implement a modern integration solution with OCI cloud-native services, such as OKE, Functions or API Gateway, and what role an iPaaS solution such as Oracle Integration Cloud (OIC) plays in this context.

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22.09.2022
Sven Bernhardt
MODERN INTEGRATION BASED ON
OCI CLOUD-NATIVE SERVICES
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THAT’S ME!
Sven Bernhardt
Cloud-Native enthusiast, API & integration geek. Always curious how new
technologies and concepts can help to make things more valuable and efficient.
Proud father of two, passionate football/soccer fan and player. Loves listening
to good hand-made music (Heavy Metal).
Chief Architect / Integration Evangelist @OPITZ CONSULTING Deutschland
GmbH
@sbernhardt
https://svenbernhardt.wordpress.com/
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INTEGRATION
01
CHALLENGES
02
ARCHITECTURE
04
CONSIDERATIONS
03
SUMMARY
05
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INTEGRATION
01
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INTEGRATION? IT’S JUST ABOUT BOXES AND LINES!
Goals:
¢ Enabling systems to talk to each other
¢ Ensure that data is where it is needed when it is needed in the form in which it is needed
Gregor Hohpe
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BASED ON PATTERNS THAT ARE STABLE SINCE DECADES
Content-based Router
Message Filter
Splitter
Aggregator
Normalizer
Resequencer
https://www.enterpriseintegrationpatterns.com
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CHALLENGES
02
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INTEGRATION CHALLENGES ARE MULTIDIMENSIONAL
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INTEGRATION CHALLENGES ARE HYBRID AND MULTI-CLOUD
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f(x)
f(x)
f(x)
f(x)
f(x)
On-premises
Cloud
SaaS
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PARADIGM SHIFT TO CLOUD-NATIVE
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¢ Single Deployment unit
¢ Single execution process
¢ Shared database
¢ Local, app-internal communication only
¢ Multiple Deployment units
¢ Exclusive execution process per service
¢ Database per Service (usually)
¢ Remote, inter-service communication
UI
Business
Logic
Persistence
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SERVICE INTEGRATION
DILEMMA
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• Amount of traffic
• Number of services
• Teams autonomity
Reliability
¢ Traffic connectivity & reliability
¢ Zero-trust security
¢ Observability
¢ Log aggregation
¢ Metrics management
¢ Service tracing
Challenges
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CHALLENGES OF INTEGRATION SOLUTIONS TODAY
¢ Monolithic / aging systems
¢ Disparate data models
¢ Architectural complexity
¢ Heterogeneous ecosystem
¢ Technical debt
¢ Bloated projects / overhead
¢ Visibility / error handling
¢ Production deployment
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CONSIDERATIONS
03
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¢ Architecture styles and heterogeneity of
platform
¢ Integration scenarios:
¢ API-led integration
¢ Event-based integration
¢ Closed app/COTS integration
¢ SaaS integration
¢ Data ingestion (one-way integration)
¢ Integration Focus:
¢ Applications
¢ Data
¢ Processes
SCENARIOS & ENVIRONMENT
https://opitzcloud.canto.global/b/HIB7C
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¢ Traditional or DevOps Organization
¢ Central responsibility
¢ Centrally managed integration capabilities
¢ Dedicated integration team
¢ Shared responsibility
¢ Locally managed integration capabilities in
respective Business domains
¢ Integration expertise per team
ORGANIZATION & CULTURE
https://opitzcloud.canto.global/b/I3581
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DEPLOYMENT SCENARIO – DESIGN FOR HYBRID MULTI-CLOUD
On-prem Integration Platform Hybrid Integration Platform Cloud Integration Platform
Center of Gravity
On-Premises Cloud
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TECHNOLOGY BASE - USE OPEN INDUSTRY STANDARDS
https://landscape.cncf.io/

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ARCHITECTURE
04
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HOW WE BUILT INTEGRATION SO FAR
¢ Monolithic architecture
¢ Often classic JEE deployments
¢ Integrations share single execution process
¢ Limited freedom of technology choice
¢ Core component:
¢ ESB Platform (Oracle Service Bus, Sonic ESB)
¢ Reverse Proxy for handling external traffic
¢ Focus on horizontal integration challenges
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HOW WE CAN BUILD INTEGRATION TODAY
¢ Cloud-native architecture, by using e.g.
¢ Containerization
¢ Kubernetes as Core runtime platform
¢ Single execution process per integration
¢ Core components:
¢ Distributed, lightweight ESB
¢ Event Hub for async integration
¢ API Gateway for sync integration
¢ Focus on horizontal as well as vertical
integration challenges
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¢ OCI Base Services providing Compute,
Storage and Network capabilities
¢ OCI Cloud Native Services
¢ Oracle Integration Cloud (OIC)
¢ OCI Data Integration
¢ OCI GoldenGate
¢ (Oracle SOA Suite)
¢ (Oracle Data Integrator (ODI))
TECHNOLOGY BASE IN OCI
https://opitzcloud.canto.global/b/OQGGL
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Oracle Cloud Infrastructure (OCI)
(Network, Compute, Storage, etc.)
Oracle Cloud Native Services
Container
Engine for
Kubernetes
(OKE)
API Gateway Functions Streaming
Application Runtime
Container
Registry
(OCIR)
Resource
Manager
Application Development
Artifact
Registry
DevOps
Monitoring
Logging
Events
Application Operations
Notifications
Application
Performance
Monitoring
Service
Mesh

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ORACLE INTEGRATION CLOUD (OIC)
¢ Low/No-Code Integration Platform as a Service (iPaaS) offering, providing
¢ Adapters to SaaS, On-prem Enterprise applications and wiede range of further adapters (e.g. RPA)
¢ Process Automation capabilities (Dynamic / Static Processes)
¢ Integration Insights
¢ Visual Builder for web and mobile applications
¢ Offers pre-built integrations to accelarate integration development
¢ Don’t need to care on the underlying platform, just focus on integrating your applications
¢ Main focus: Application-centric and Process-centric integration
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OCI DATA INTEGRATION (OCIDI)
¢ No-code solution for designing data flows
¢ Ingest data from various data sources
¢ Transform and load data into a data lake or data warehouse
¢ Reusable templates and dataflows
¢ Hybrid data execution to provide most efficient way to extract, transform and load data
¢ Automatic ETL or E-LT method selection
¢ Pushdown E-LT to eliminate performance degradation on data sources
¢ PAYG pricing allows to deal with data integration scenarios cost efficient way
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OCI GOLDENGATE
¢ Real-time data mesh solution
¢ Uses data replication
¢ E2E Monitoring
¢ Provides transactional integrity and secure data delivery (SSL & encryption)
¢ Dynamic scaling as needed (no need to allocate explicit Compute resources)
¢ Supports a variety of data sources and sinks including Multi-Cloud and Big Data support
¢ Allows for real-time streaming and analysis
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OCI TECHNOLOGIES AND INTEGRATION FOCUS
Data
Applications
Processes
Business Technical
Golden
Gate
OCIDI
OCI
Cloud-
native
OIC
SOA
Integration focus
Target audience
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ODI

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INTEGRATION PLATFORM WITH OCI CLOUD-NATIVE SERVICES
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¢ Industry standards-based approach
¢ Open API
¢ Kafka (OCI Streaming)
¢ Container / Kubernetes
¢ Open Tracing / Open Metrics
¢ Development Platform also provided by OCI
¢ OCI Container Registry / Artifact Registry
¢ OCI DevOps
¢ Monitoring can be done with OCI Monitoring,
OCI Logging and OCI APM (needs to be
explicitly setup!)

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CHARACTERISTICS OF OCI CLOUD-NATIVE APPROACH
¢ Developer-centric, Cloud-agnostic approach
¢ Supports Hybrid, On-prem and Cloud-only deployment scenario
¢ No specific Know-How - Toolset, technologies and processes developers are familiar with
¢ Operational and management responsibility for Platform team
¢ Integration scenarios covered:
¢ API-led integration
¢ Event-based integration
¢ Closed app/COTS integration
¢ SaaS integration
¢ Data ingestion (one-way integration)
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INTEGRATION PLATFORM BASED ON OIC
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¢ iPaaS-based solution
¢ No-/Low-Code solution
¢ Pre-built Adpater Services allow easy access
¢ Development platform provided by OIC
(Cloud-based Drag ‘n Drop)
¢ Easy and secure On-prem integration using
OIC Connectivity agents
¢ Monitoring of infrastructure is done by Oracle
¢ (Business) Monitoring of integration flows can
be done using Integration Insights

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CHARACTERISTICS OF OIC APPROACH
¢ Less Development, more Business-centric approach
¢ Vendor lock-in (which is not bad by default, but people should be aware of it)
¢ Supports Cloud-only deployment scenario (iPaaS approach)
¢ Specific Know-How, Toolset and Processes needed
¢ Less operational and management responsibility for Platform team
¢ Integration scenarios covered:
¢ API-led integration
¢ Event-based integration
¢ Closed app/COTS integration
¢ SaaS integration
¢ Data ingestion (one-way integration)
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COMBINED APPROACH IS ALSO AN OPTION
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CHARACTERISTICS OF OIC APPROACH
¢ Best of the the two worlds
¢ OIC particularly used for SaaS connectivity
¢ Integration scenarios covered:
¢ API-led integration
¢ Event-based integration
¢ Closed app/COTS integration
¢ SaaS integration
¢ Data ingestion (one-way integration)
¢ Note: To also cover Data ingestion Use cases more efficiently, OCI GoldenGate or OICDI can be
used
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SUMMARY
05

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¢ Broad Service offering that provides a nearly
complete toolbox to approach today’s
integration challenges
¢ On-prem integration
¢ Hybrid integration
¢ Cloud integration
¢ SaaS extension
¢ OCI Services rely on and integrate easily with
¢ Established Open Source technologies
¢ Open industry standards (Open API, Kafka,
etc.)
TACKLE INTEGRATION COMPLEXITY
WITH OCI
https://opitzcloud.canto.global/b/KA3VM

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¢ There’s no one size fits all recipe!
¢ Questions you should ask (of course there are
more):
¢ What is the integration focus?
¢ What are the integration scenarios?
¢ Which architectural requirements do I have?
¢ What about NFR?
¢ Which skills do my team(s) have?
¢ Answering these questions will give you hints
which tools to choose from your toolbox
WHEN TO USE WHICH SERVICES?
https://opitzcloud.canto.global/b/U3IO6

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Q & A
https://opitzcloud.canto.global/b/H0EMG

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IN CASE OF ANY QUESTIONS…
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Sven Bernhardt
Chief Architect / Integration Evangelist |
Oracle ACE Director
OPITZ CONSULTING Deutschland GmbH
Kirchstrasse 6, 51647 Gummersbach, Germany
Phone: +49 172 2193529
Mail: sven.bernhardt@opitz-consulting.com
Twitter: @sbernhardt
Blog: https://svenbernhardt.wordpress.com