#SpringCloud

[inextures]

Jaeger Integration with Spring Cloud

In today’s complex landscape of highly distributed microservices, monitoring, and tracing are essential tools for understanding application performance and effectively diagnosing issues. Distributed tracing allows us to track requests as they traverse multiple services, providing valuable insights into potential bottlenecks and latency problems. In this blog post, we will explore the process of setting up distributed tracing in a Spring Boot application, utilizing OpenTelemetry and Jaeger.

Understanding Distributed Tracing

Distributed tracing is a technique that helps developers and operators track requests as they move across various microservices or components of an application. It provides end-to-end visibility into the path a request takes and the time it spends in each service. With this information, you can:

Identify bottlenecks: Find out which parts of your application are causing delays or performance issues.

Optimize performance: Analyze the trace data to identify opportunities for optimizing the performance of your application.

Troubleshoot errors: Quickly pinpoint the source of errors or exceptions in your system, making debugging much easier.

Introducing OpenTelemetry and Jaeger

OpenTelemetry (OTel) is indeed an open-source project that offers a set of APIs, libraries, agents, and instrumentation to help you gain observability into your applications by collecting distributed traces, metrics, and logs. OpenTelemetry is designed to be vendor-neutral and can integrate with a range of tracing systems.

Jaeger is a popular open-source distributed tracing system that can act as a backend for collecting, storing, and visualizing trace data generated by applications instrumented with OpenTelemetry.

Together, OpenTelemetry and Jaeger can be used to collect, analyze, and visualize observability data from distributed systems, providing insights into system performance and helping to troubleshoot issues.

Setting Up OpenTelemetry and Jaeger in Spring Boot

Creating an application

Let’s go to https://start.spring.io and create an application with the following dependencies.

Spring Web (required to create REST endpoints)

Spring Boot Actuator

The traces will be collected using the micrometer collector in the actuator dependence and exported using the OpenTelemetry requirement.

This would necessitate the addition of the following dependencies.

The Spring Boot parent will handle the dependency versions.

Following that, we will develop two applications.

To export the spans to Jaeger, we must first develop a span exporter bean, as seen below.

In addition, we will define the Jaeger URL where trace data will be recorded in the properties file.

Service1

Service 2

Here, we set the probability of selecting the tracing to 1, which means that every trace and span is reported to Jaeger.

We will also provide a special logging format so that the spans and traces may be seen in the application logs.

Will also configure bean for RestTemplate

Service-2

in the Controller class

The idea is to call service2 /hello api from service1 /hello api by using RestTemplate.

Starting Jaeger with Docker

To start Jaeger, we have the following docker cmd.

For Jaeger to support the OpenTelemetry input format, we need to set the COLLECTOR_OTLP_ENABLED to true

With this, will start the applications.

Now, let’s visualize the traces in Jaeger UI.

To access the Jaeger UI, open the following URL.

Originally published by: Jaeger Integration with Spring Cloud

[gbmishra]

In this course, we will build simple Java Microservices using Spring Boot and Spring Cloud.

We will use the below technology stack.

Spring Cloud Netflix Eureka Server

Spring Cloud Netflix Eureka Client

Spring Cloud Netflix Zuul

Spring Cloud OpenFeign

Spring Boot Data JPA

Spring Boot Web

H2 Embedded Database 

Lombok Framework

[itsrajivsrivastava]

Kubernetes alternatives to Spring Java framework

Spring Cloud and Kubernetes both complement each other to build a cloud-native platform and run microservices on the Kubernetes containers. Kubernetes provides many features which are similar to Spring Cloud and Spring Config Server features. Spring framework has been around for many years. Even today, many organizations prefer to go with Spring because it provides many advanced features with…

[synergetics-india-blog-blog]

Spring Boot 3.0 will require JAVA 7. also, a top-level package from Java EE8 i.e. Java is getting replaced by java EE9 new Jakarta packages. Spring framework 6.0 has dropped many outdated features like Core container, auto wiring setter by name/type. To know more about Spring Cloud Function, watch this live webinar here- 

https://youtu.be/G3HccgAKJYI

[manoval]

Cutted Clouds 🔪✂️☁️ . . . . . . #cloudscapes #cuttedclouds #cloudporn #cottonclouds #springclouds ---------------------- #bnw #bnw_capture #bnw_planet #bnw_drama #bnw_world #bnw_loves #cinematicmodeon #artofmystery #dark_infinity #dark_passion_lovers #darkfeathertouch #darkgrammer #darkness_fantasy #darknmoody_hunter #embracing_shadows #emotional_dark_pictures #ethereal_dark #gallery_of_dark_arts #kings_gothic #ominous_perfection #renegade_dark #souls_hunters #the_darkness_in_beauty #aestheticdark #manoval1988 (presso Italy) https://www.instagram.com/p/CqczwroIVyj/?igshid=NGJjMDIxMWI=

[codeonedigest]

Spring Cloud Config Server Tutorial with Example for Cloud Developer Full Video Link      https://youtu.be/Exoy4ZNAO9Y         Hello friends, new #video on #springcloud #configserver #eureka #servicediscovery setup is published on #codeonedigest #youtube channel.  @java #java #aws #awscloud @awscloud @AWSCloudIndia #salesforce #Cloud #CloudComputing @YouTube #youtube #azure #msazure #configserver #configserverspringboot #configserverinmicroservices #configserverinspringbootmicroservices #configserverinspringbootexample #configserverspringbootgithub #configserverfirewall #configserverspringcloud #configserverspring #configurationserver #configurationserverspringboot #configurationserverdns #configurationserverinmicroservices #configurationserverstepbystep #eurekaservice #eurekaservicediscovery #eurekaserviceregistryspringboot #eurekaservicediscoveryexamplespringboot #eurekaserviceregistry #eurekaserviceinmicroservices #eurekaservicediscoveryexample #eurekaservicediscoveryspringboot #eurekaserviceregistryexample #eurekaservicespringboot 

[fortunatelycoldengineer]

[ombodiferenc]

Spring tulips in Netherlands 🥰😍⠀ If you like it follow me 😍😍🙏⠀ ⠀ ⠀ ⠀ #Repost @nomadfervor⠀ • • • • • •⠀ Colorful flowery carpet in Netherlands 🌷 We can post your photos in our account, follow the link in our bio: @nomadfervor and we will select your pictures⠀ ⠀ Tag someone you’d love to share this place with 👇⠀ ⠀ 📷 @dirkjanpiersma⠀ ⠀ #tulipseason #springview #springlook #springcloud #beautifulgardens #beautifuldestinations #beautifulgarden #springfield #springflower #magicalgarden #awesome_photographers #awesometravel #awesome_earth #awesomeplaces #beautifulflowers #amazingcolors #amazinggarden #springiscoming #netherlads #netherlands🇳🇱 #hollandtulips #flowercarpet #redtulips #whitetulips #whitelandscape #whitetulip #naturegarden #gardendesign #gardenideas (helyszín: Netherlands) https://www.instagram.com/p/CMaC16wA1Wo/?igshid=in8sjgfkagob

[anupbhagwat7]

Microservices Example using Spring Cloud Eureka

In this tutorial, we will create a demo microservice using spring boot framework in java. Tools Required - Java 8IntelliJ IDE We need to create three different applications as below - Eureka Service–  This Service will register every microservice and then the client microservice will look up the Eureka server to get a dependent microservice to get the job done.This Eureka Server is owned by Netflix and in this, Spring Cloud offers a declarative way to register and invoke services by using Java annotation.demo-server – This service will return a simple hello message.demo-client – It is similar to the standalone client service created in Bootiful Development with Spring Boot. It will consume the APIs provided by demo-server through Eureka Service . 1. Eureka Service We need to create new project in intelliJ editor by selecting below dependencies -

Project Setup

Maven dependencies You need to do below configurations to create Eureka service which allows other microservices to register with it . package com.myjavablog; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer; @EnableEurekaServer @SpringBootApplication public class EurekaServiceApplication { public static void main(String args) { SpringApplication.run(EurekaServiceApplication.class, args); } } You need to create application.yml to configure your EurekaService project as register service. Other services will be able to register themselves with EurekaService. So you need to do below configurations - eureka: client: registerWithEureka: false fetchRegistry: false server: waitTimeInMsWhenSyncEmpty: 0 Now you can run the application . Once the application is up and running you can go to below URL and see EurekaService is working . You will be able to see below home page of eureka-

As no instances are registered with EurekaService , you can see No instances available message as highlighted above . Now we will create services which will register with our Eureka Server. 2. Demo Server This is a simple REST based webservice. This will be registering itself with the EurekaService. This service has a simple API which is just returning hello message. Create a project structure as shown below in IntelliJ IDE -

Setup

Maven Dependencies required Project structure is as shown below -

You need to include Eureka Discovery client dependency in your pom file. Once the application is up and running , you can see instance of demo-server registered on EurekaService as shown below -

3. Demo Client Same way as Demo server , we need to create demo client which will consume services provided by demo-server through EurekaService. demo-client will have autowired RestTemplate to call the services provided by demo-server. package com.myjavablog.democlient; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.client.RestTemplate; @RestController @RequestMapping("/demo/hello/client") public class TestController { @Autowired public RestTemplate restTemplate; @GetMapping public String test(){ String url = "http://demo-server/demo/hello/server"; return restTemplate.getForObject(url, String.class); } } Also you can see in the above code , we are using String url = "http://demo-server/demo/hello/server" demo-server is the name specified in the application.yml file of demo-server project . So instead of using http://localhost:8071/demo/hello/server we are using http://demo-server/demo/hello/server . demo-server is the name registered on Eureka server for demo-server application as shown below - spring: application: name: demo-server server: port: 8071 eureka: client: registerWithEureka: true fetchRegistry: true serviceUrl: defaultZone: http://localhost:8070/eureka/ instance: hostname: localhost Once the application is up and running , you can see the demo-client is registered on Eureka Server as below -

When you call the APIs from demo client ,it will internally call demo-server APIs through Eureka Service . Eureka server handles all routing and load balancing part. So even if you scale up your services in future by creating multiple instances, you can go on and use the services with the name which is registered on Eureka server.

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[itsrajivsrivastava]

My first book release!! Cloud Native Microservices with Spring and Kubernetes

My first book release!! Cloud Native Microservices with Spring and Kubernetes

I am happy to announce release of my first book “Cloud Native Microservices with Spring and Kubernetes” with BPB Publications!! It’s all about design, build and deploy scalable cloud native microservices on container using the Spring framework and Kubernetes. Need your support! Please buy and review this book on Amazon. Also, share book detail with your IT software engineers colleagues and…

[jackkrauser-rl]

Working on Saturday ❤️🖥️🤓 #springCloud #microservices #configServer (at Nuevo Hospital IESS Machala) https://www.instagram.com/p/B1kBvvAFyn0/?igshid=1rbtuyvv1ho5o

[manoval]

I overdid it with vaping. lol ☁️🚭 . . . . . . #cloudscapes #vapeart #cloudporno #cottonclouds #springclouds ---------------------- #bnw #bnw_capture #bnw_planet #bnw_drama #bnw_world #bnw_loves #cinematicmodeon #artofmystery #dark_infinity #dark_passion_lovers #darkfeathertouch #darkgrammer #darkness_fantasy #darknmoody_hunter #embracing_shadows #emotional_dark_pictures #ethereal_dark #gallery_of_dark_arts #kings_gothic #ominous_perfection #renegade_dark #souls_hunters #the_darkness_in_beauty #aestheticdark #manoval1988 (presso Italy) https://www.instagram.com/p/CqXzqTAIZ6M/?igshid=NGJjMDIxMWI=

[codeonedigest]

Create Spring Cloud Configuration Server for Microservices | Setup Eurek...

Full Video Link      https://youtu.be/Exoy4ZNAO9Y        

Hello friends, new #video on #springcloud #configserver #eureka #servicediscovery setup is published on #codeonedigest #youtube channel.

@java #java #aws #awscloud @awscloud @AWSCloudIndia #salesforce #Cloud #CloudComputing @YouTube #youtube #azure #msazure #configserver #configserverspringboot #configserverinmicroservices #configserverinspringbootmicroservices #configserverinspringbootexample #configserverspringbootgithub #configserverfirewall #configserverspringcloud #configserverspring #configurationserver #configurationserverspringboot #configurationserverdns #configurationserverinmicroservices #configurationserverstepbystep #eurekaservice #eurekaservicediscovery #eurekaserviceregistryspringboot #eurekaservicediscoveryexamplespringboot #eurekaserviceregistry #eurekaserviceinmicroservices #eurekaservicediscoveryexample #eurekaservicediscoveryspringboot #eurekaserviceregistryexample #eurekaservicespringboot

[fortunatelycoldengineer]

[j-kclaes]

A new #drawing and still a #workinprogress on the easel this week • no title yet • charcoal & graphite on paper • 22 x 30 • : : : #charcoaldrawing #contemporaryart #contemporarydrawing #wip #johnkarlclaes #contemporarylandscape #springclouds #drawingoftheday #californiaartist #californialandscape #bigclouds #blackandwhite https://www.instagram.com/p/CQWC4emn2zE/?utm_medium=tumblr