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Legacy data for microservices Data Gateways Hugo Guerrero APIs & Messaging Developer Advocate, Red Hat DATA GATEWAYS 1

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Agenda DATA GATEWAYS 2 Architecture Evolution Application architecture trends Microservices Data The rise of the gateways Microservices Data Data Gateways Capabilities Types Open source data gateways Hugo Guerrero Mexican @ MA, USA APIs & Event-Driven Specialist | Open Source Advocate | History, Travel & Food Enthusiast @hguerreroo

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DATA GATEWAYS 3 12 factor apps What became hot? Application Architecture Evolution Microservices Serverless

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DATA GATEWAYS 4 MICROSERVICES ARCHITECTURE MONOLITHIC DATABASE

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DATA GATEWAYS 5 Source: https://www.infoq.com/articles/data-gateways-cloud-native/ Traditional Architecture

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DATA GATEWAYS 6 Source: https://www.infoq.com/articles/data-gateways-cloud-native/ Distributed Architecture

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DATA GATEWAYS 7 The Rise of API Gateways The traditional Load Balancer is not enough Developer Apps API Backend 2 API Gateway API Request Authorized API Request API Backend 1 API Backend 3

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8 DATA GATEWAYS Microservices Data ● Independent database per microservice ○ Independent database instance ○ Independent schema and logical grouping of tables ● Only one microservice owns the data

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9 Source: https://martinfowler.com/bliki/PolyglotPersistence.html DATA GATEWAYS Microservices Data ● Polyglot persistence layer ○ Data is different, so the persistence layer ● Relational database and document and in-memory and…

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DATA GATEWAYS 10 Source: https://www.infoq.com/articles/data-gateways-cloud-native/ Gateways

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Source: https://www.infoq.com/articles/data-gateways-cloud-native/ “A data gateway is like an API gateway, but it understands and acts on the data layer implementation rather than the networking layer” DATA GATEWAYS 11

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12 DATA GATEWAYS Data Gateway Capabilities ● Abstraction / Decoupling ○ Hides implementation ○ Abstracts physical source ● Security ○ Access control based on data model (row, column, etc.) ● Scaling ○ Caching and materialized views ● Federation ● Schema-first based on SQL standard

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13 DATA GATEWAYS Many Types of Data Gateways ● Classic Data Virtualization ● Database with Federation ● GraphQL bridges ● Cloud-hosted ● Secure tunneling data-proxies ● Open source data gateways

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● Apache Drill ○ Schema-free SQL query engine for NoSQL databases and file systems ● PrestoDB ○ Distributed SQL query engine targeting big data use cases through its coordinator-worker architecture ● Teiid ○ Data federation engine purposefully re-written for the Kubernetes ecosystem sponsored by Red Hat 14 DATA GATEWAYS Open Source Data Gateways

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DATA GATEWAYS 15

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“Data has gravity, requires granular access control, is hard to scale, and difficult to move on/off/between cloud-native infrastructures. Having a data gateway component as part of the cloud-native tooling arsenal, which is hybrid and works on multiple cloud providers, supports different use cases is becoming a necessity.” DATA GATEWAYS 16 Source: https://www.infoq.com/articles/data-gateways-cloud-native/

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linkedin.com/company/red-hat youtube.com/user/RedHatVideos facebook.com/redhatinc twitter.com/RedHat 17 Red Hat is the world’s leading provider of enterprise open source software solutions. Award-winning support, training, and consulting services make Red Hat a trusted adviser to the Fortune 500. Thank you DATA GATEWAYS