Debugging spring boot microservices in docker like a pro

Описание: Download 1M+ code from https://codegive.com/8419789
okay, let's dive into debugging spring boot microservices running in docker containers like a seasoned professional. this tutorial will cover various approaches, best practices, and real-world code examples to make you a debugging master.

*i. setting the stage: project setup and basic dockerfile*

1. *project setup:*
let's assume you have a simple spring boot microservice. for example, a basic service that exposes a single rest endpoint. you can create one quickly using spring initializr (`https://start.spring.io/`).
include the `spring-boot-starter-web` dependency.



2. *basic dockerfile:*



*explanation:*
`from openjdk:17-jdk-slim`: this uses a slim version of openjdk 17 as the base image. choose the java version you're using in your spring boot project.
`workdir /app`: sets the working directory inside the container to `/app`.
`copy target/*.jar app.jar`: copies the built jar file from your project's `target` directory into the `/app` directory inside the container, renaming it to `app.jar`. (this assumes you're building a jar. if you are building a war then adjust the copy statement).
`expose 8080`: declares that the container exposes port 8080 (the default for spring boot). this is metadata and doesn't automatically publish the port. you need to use `-p` when running the container.
`entrypoint ["java", "-jar", "app.jar"]`: defines the command to execute when the container starts. this runs the spring boot application.

3. *build and run:*



*ii. debugging techniques*

now, let's explore the core debugging techniques.

1. *remote debugging with a java debugger (jdwp)*

this is the most common and powerful method. it allows you to connect your ide's debugger to the running application inside the container.

*steps:*
1. *configure the dockerfile for debugging:* modify your `dockerfile` to expose a debug port and sta ...

#Debugging #SpringBoot #cuda
Debugging Spring Boot Microservices
Docker Debugging Techniques
Spring Boot Performance Tuning
Microservices Troubleshooting
Docker Container Logs
Spring Boot Actuator
Remote Debugging Spring Boot
Docker Compose Debugging
Spring Boot Application Insights
Containerized Microservices Debugging
Java Debugging Tools
Spring Boot Profiling
Docker Networking Issues
Microservices Architecture Debugging
Kubernetes Spring Boot Debugging