Building microservices step by step and deploy in cloud run

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Serverless Microservices with Google Cloud Run Juan Guillermo Gómez @jggomezt

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Juan Guillermo Gómez ● Co-Leader y Co-Founder del GDG Cali. ● Founder DevHack. ● Tech Lead Wordbox ● Consultant and advisor on software architecture, cloud computing and software development. ● Experience in several languages and platforms. (C, C#, Java, NodeJS, android, GCP, Firebase). ● Google Developer Expert GCP & Firebase ● BS in System Engineering and a MS in Software Engineering. ● @jggomez

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WHERE ARE THE SLIDES? https://speakerdeck.com/jggomez/serverless-with-cloud-run

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FOUNDATIONS

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Where the microservices come from? ❖ Modular Programming. ❖ POO ❖ RPC. ❖ EAI. ❖ AOP. ❖ Web Services. ❖ SOA

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Microservices

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Microservices

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Microservices

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Microservices Process

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ANALYSIS AND DESIGN

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Modeling Microservices ❖ Model services around the business domain. ❖ Model services around quality attributes. ❖ Model services around cost

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Microservices Description with Open API 3 OpenAPI Specification (formerly Swagger Specification) is an API description format for REST APIs. An OpenAPI file allows you to describe your entire API, including: ❖ Available endpoints (/users) and operations on each endpoint (GET /users, POST /users) ❖ Operation parameters Input and output for each operation ❖ Authentication methods ❖ Contact information, license, terms of use and other information. ❖ API specifications can be written in YAML or JSON. The format is easy to learn and readable to both humans and machines.

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Microservices Description with Open API 3

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Microservices Description with Open API 3

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Microservices Design

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Create Mockups

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BUILD MICROSERVICES

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How to build microservices ❖ Separation of concerns. ❖ Business Context. ❖ Clean Architecture.

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Frameworks to build microservices

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TEST

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How to test microservices

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DEPLOY

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SERVERLESS ➢ Serverless architectures are application designs that incorporate third-party “Backend as a Service” (BaaS) services, and/or that include custom code run in managed, ephemeral containers on a “Functions as a Service” (FaaS) platform. ➢ Serverless architectures may beneﬁt from signiﬁcantly reduced operational cost, complexity, and engineering lead time, at a cost of increased reliance on vendor dependencies and comparatively immature supporting services. https://martinfowler.com/articles/serverless.html

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Cloud Run ➢ Cloud Run is a managed compute platform that automatically scales your stateless containers. Cloud Run is serverless: it abstracts away all infrastructure management, so you can focus on what matters most — building great applications. ➢ Run your containers in fully managed Cloud Run, or on Cloud Run for Anthos. Anthos supports GKE on Google Cloud, on-premises and multi-cloud environments. Cloud Run is built from Knative, ensuring that your applications are built on an open standard.

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Cloud Run - Kubernetes

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Cloud Run https://twitter.com/ahmetb

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Deployment

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Cloud Run - Deploy ❖ gcloud conﬁg set project PROJECT-ID ❖ gcloud builds submit --tag gcr.io/PROJECT-ID/accountservice ❖ gcloud beta run deploy --image gcr.io/PROJECT-ID/accountservice --platform managed

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Cloud Run - Kubernetes

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Cloud Run - Kubernetes

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Cloud Run - Demo https://github.com/escueladevhack/ScalabilitySoftwareArchitecture

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CI & CD

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Continuous Integration & Continuous Delivery

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Continuous Integration & Continuous Delivery

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Continuous Integration & Continuous Delivery

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BONUS

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BONUS

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Proxy

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Call a microservice to another microservice ASYNC

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Call a microservice to another microservice ASYNC

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Call a microservice to another microservice SYNC

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Caching Microservices ❖ Use a memory repository for instance REDIS. ❖ Keep the data in the cache when it doesn’t change. ❖ if another component changes the data, the cache must be deleted. Queues can be the solution. ❖ Cloud run doesn’t support memory store but the cloud functions support memory store

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Security in the Microservices ❖ Consider implementing authentication at API Gateway level with widely-used API security standards such as OAuth2 and OpenID Connect. ❖ Create a API secret for app. ❖ Security channels ❖ JWT http://kasunpanorama.blogspot.com/2015/11/microservices-in-practice.html

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Best Practices Microservices ❖ Domain Driven Design. ❖ Decentralized Data Management ❖ Smart Endpoints and dump pipes ❖ Asynchronous Communication ❖ Avoid Coupling between Services ❖ Decentralize Development ❖ Monitoring Microservices

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Best Practices Microservices ❖ Keep domain knowledge out of the gateway ❖ Token-based Authentication ❖ Event Driven Nature ❖ Fault Tolerance. (circuit-breaking, bulkhead, retries, timeouts, fail fast, failover caching, rate limiters, load shedders) ❖ Product Engineering

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REFERENCES ❖ Building Microservices. Book. Sam Newman ❖ https://martinfowler.com/articles/microservices.html ❖ https://martinfowler.com/articles/serverless.html ❖ https://cloud.google.com/run/ ❖ https://medium.com/weareservian/3-best-features-of-google-cloud-run-546e367242ea ❖ https://medium.com/platform-engineer/microservices-design-guide-eca0b799a7e8 ❖ https://blog.risingstack.com/designing-microservices-architecture-for-failure/ ❖ http://kasunpanorama.blogspot.com/2015/11/microservices-in-practice.html

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GRACIAS !! @jggomezt