Microservices with Spring

Istio addresses service level concerns in a principled way and truly unleashes the power of microservices.

- Microservices is an architectural style that structures an application as a collection of small, independent services that communicate with each other, often over the network. It can improve agility, scalability, and resilience. - While challenging, microservices are worth pursuing due to benefits like improved iteration speed and engineer autonomy enabled by modern tools like containers and service orchestration platforms. - For building microservices, Scala and the Akka toolkit are good choices as Akka supports core aspects of microservices like distributed actors, reactive programming, and event streaming. Its features help address issues in concurrent and distributed systems.

This document discusses Spring Boot, an open-source framework for building microservices and web applications. It provides an overview of Spring Boot's key features like embedded servers, auto-configuration, starters for common dependencies, and production monitoring with Spring Boot Actuator. The document also covers configuration, customization, security, and compares Spring Boot to alternatives like Dropwizard.

This document summarizes a presentation about building microservices with WSO2 technologies. It introduces the microservices architecture and framework MSF4J, which allows developing microservices in Java using annotations. MSF4J provides high performance, metrics collection, and integration with Kubernetes for deployment. Hands-on examples are provided to demonstrate creating a sample stock quote microservice with MSF4J and deploying it to Kubernetes. The presentation also covers the WSO2 Application Server and its transition to being based on Tomcat rather than Carbon for improved performance and classloading.

Red Hat JBoss Fuse integration services delivers cloud-based integration based on OpenShift by Red Hat to deliver continuous delivery of tested, production-ready integration solutions. Utilizing a drag and drop, code-free UI and combining that with the integration power of Apache Camel, Fuse integration services is the next generation iPaaS. In this session, we'll walk you through why iPaaS is important, the current Fuse integration services roadmap, and the innovation happening in open source community projects to make this a reality.

This document discusses iJET International's migration to a microservices architecture using WSO2 Identity Server and API Manager for identity management and API integration. The key challenges addressed were replacing their legacy architecture with a scalable and agile system, and enabling single sign-on access across their applications. Within six months, they implemented a new infrastructure with federated SSO, API Store and Gateway, and rebuilt an application using REST APIs secured by WSO2. While documentation gaps caused issues, the migration was ultimately successful.

This document discusses service discovery for microservices using Docker and OSGi. It describes how Docker containers can be monitored to dynamically register their services in an OSGi environment. Consul is introduced as a distributed key-value store that can be used for service discovery across multiple hosts. The document concludes with demos of integrating Docker services with OSGi using Consul for service discovery.

When building microservices, you must solve for a number of critical functions, but the process can be incredibly complex and expensive to maintain. Christian Posta offers an overview of Envoy Proxy and Istio.io Service Mesh, explaining how they solve application networking problems more elegantly by pushing these concerns down to the infrastructure layer and demonstrating how it all works.

Nodeconf Barcelona 2015 presentation exploring several ways of building microservices in an asynchronous way. Presented the concept of a broker as an alternative to a multiple point-to-point architecture.

Microservice architecture is widespread our days. It comes with a lot of benefits and challenges to solve. Main goal of this talk is to go through troubleshooting and debugging in the distributed micro-service world. Topic would cover: main aspects of the logging,  monitoring, distributed tracing, debugging services on the cluster. About speaker: Andrеy Kolodnitskiy is Staff engineer in the Lohika and his primary focus is around distributed systems, microservices and JVM based languages. Majority of time engineers spend debugging and fixing the issues. This talk will be dedicated to best practicies and tools Andrеys team uses on its project which do help to find issues more efficiently.

Microservice 4.0 Journey - From Spring NetFlix OSS to Istio Service Mesh and Serverless at Open Source Summit Japan

This document discusses microservice architecture and related technologies. It introduces microservices and contrasts them with monolithic architectures. It covers refactoring monoliths into microservices and best practices around continuous integration/delivery (CI/CD), deployment with Docker, and monitoring microservices in the cloud. Specific technologies mentioned include Docker, Kubernetes, Consul, Eureka, Logstash, Elasticsearch, and Spring Cloud for developing microservices.

A quick glance into the Microservices architecture and what the architecture offers over its precursor - Monolith Architecture

The presentation from our online webinar "Design patterns for microservice architecture". Full video from webinar available here: https://www.youtube.com/watch?v=826aAmG06KM If you’re a CTO or a Lead Developer and you’re planning to design service-oriented architecture, it’s definitely a webinar tailored to your needs. Adrian Zmenda, our Lead Dev, will explain: - when microservice architecture is a safe bet and what are some good alternatives - what are the pros and cons of the most popular design patterns (API Gateway, Backend for Frontend and more) - how to ensure that the communication between services is done right and what to do in case of connection issues - why we’ve decided to use a monorepo (monolithic repository) - what we’ve learned from using the remote procedure call framework gRPC - how to monitor the efficiency of individual services and whole SOA-based systems.

Fundamental and Practice. Explain about microservices characters and pattern. And also how to be good build microservices. And also additional the scale cube and CAP theory.

This document provides an overview and agenda for a presentation on microservice architecture. It begins with defining microservices as small, independent applications that communicate via APIs. It then gives an example of how the Dropwizard framework can be used to build production-ready microservices. The remainder of the document outlines five requirements for an internal loan underwriting system and how each could be implemented as an independent microservice. It discusses tooling, deployment strategies, testing approaches, and concludes with a discussion of the Unix philosophy and how it relates to microservices.

This document discusses linkerd, an open source service mesh for microservices. It summarizes that a service mesh handles communication between microservices by providing features like load balancing, failure recovery, and observability. Linkerd's approach uses lightweight proxies and integrates with service discovery and control plane tools, providing reliability, security and management of microservices. Potential downsides of a service mesh discussed are memory usage and latency overhead.

스프링 클라우드에 대한 소개

The document discusses various metaprogramming techniques in Java, including annotations, reflection, bytecode manipulation libraries like ASM and BCEL, Java agents, and dynamic languages like Groovy. It provides examples of using annotations to mark classes as commands, reflecting on annotated classes, enhancing classes at runtime by modifying bytecode with ASM, and dynamically adding methods in Groovy using its metaprogramming features.

The document discusses microservices, Spring Boot, UI5, and OData. It describes how microservices are stateless, service-oriented, and loosely coupled. It explains that Spring Boot allows for quick development while including features like metrics and pluggable capabilities. It then discusses how UI5 tiles can each have their own backend microservice with isolated databases and communication through APIs. The document promotes using OData with UI5 for entity definition and CRUD operations and using Spring Boot for entity definition and repository logic without additional code. It introduces an OData/UI5 boilerplate project that applies the microservices pattern and includes plumbing for UI5, OData, and linking to JPA entities to rapidly build prototypes.

This document discusses best practices for REST APIs. It recommends using HTTP methods appropriately, with GET for retrieving resources, POST for creating, PUT for updating entirely and PATCH for partial updates, and DELETE for removing. It also suggests making APIs intuitive, hypermedia-driven, versioned, discoverable and secured. Resources should be addressable and have clear relationships defined between them.

This document discusses microservices architecture and how it compares to monolithic architecture. It notes some advantages of microservices such as independent scalability, fault isolation and faster deployments. However, microservices also introduce more operational complexity. The document recommends Spring Boot as a solution for building microservices due to its features like embedded servers, auto-configuration and production-ready environments without XML configuration. It also describes Spring Boot Actuator which adds monitoring endpoints.

This document discusses fintechs and provides definitions and examples. It begins by defining fintech as the use of technology to make financial systems more efficient. It then discusses what fintechs do, including providing services like lending, payments and money transfers in a more convenient way than traditional banks. The document provides examples of fintech applications and companies. It also discusses topics like open banking, APIs, fintech adoption rates in different parts of the world, and the fintech ecosystem in Turkey.

Here is the blog: http://www.aurorasolutions.io/architecture-workflow-of-modern-web-apps/ In the IT industry the biggest problem we regularly face is the abundance of choice. We have tons of frameworks, languages, tools, platforms, etc. Although for competition purposes; multiple choices are ultimately very good but we usually find ourselves in paralysis when we have to choose among them for our next project. People usually still consider that (frontend) of web applications are created by mixing together HTML, CSS & JavaScript without giving any thoughts about the frontend architecture, workflow and testing; but things have definitely changed now since last couple of years and in this presentation I try to explain that how JavaScript and it’s related stuff has become first class citizen and how the new workflow looks like. And I will also explain that how the architecture of modern web applications is migrating from thick server-side applications to smart clients and services on their journey North to pure Microservices. Here is the list of different tools and frameworks that have been discussed in this presentation: * Yeoman: (http://yeoman.io/) Yeoman is the web’s scaffolding tool for modern webapps. Yeoman helps you to kickstart new projects, prescribing best practices and tools to help you stay productive. * Bower: (http://bower.io/) Bower is used for dependency management, so that you no longer have to manually download and manage your scripts. Web sites are made of lots of things — frameworks, libraries, assets, utilities, and rainbows. Bower manages all these things for you. * Grunt: (http://gruntjs.com/) Grunt is a task-based command line build tool for JavaScript projects. When you work on large projects you have couple of things that you do regularly and you would like them to be automated; Grunt is the tool to solve that problem! * HTML5 Boilerplate: (https://html5boilerplate.com/) HTML5 Boilerplate is a professional front-end template for building fast, robust, and adaptable web apps or sites. * Twitter Bootstrap: (http://getbootstrap.com/2.3.2/) Sleek, intuitive, and powerful front-end framework for faster and easier web development. * Jasmine: (https://github.com/jasmine/jasmine) Jasmine is a behavior-driven development framework for testing JavaScript code. It does not depend on any other JavaScript frameworks. It does not require a DOM. And it has a clean, obvious syntax so that you can easily write tests. * Karma: (https://github.com/karma-runner/karma/) A simple tool that allows you to execute JavaScript code in multiple real browsers. * PhantomJS: (https://github.com/ariya/phantomjs/) PhantomJS is a headless WebKit scriptable with JavaScript. * Protractor: (https://github.com/angular/protractor) Protractor is an end-to-end test framework for AngularJS applications.