A Java Microservices Spring Boot and Docker case study.
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This document provides steps to create a Java microservices project using Spring Boot and deploy it on Docker. It involves creating a Spring Boot project, adding dependencies, generating a JAR file, creating a Dockerfile, building a Docker image, and running the Docker container. The key steps are: 1. Create a Spring Boot project and add dependencies 2. Generate a JAR file 3. Create a Dockerfile 4. Build a Docker image and run the Docker container 5. Verify the application runs correctly by checking the browser output
![Kill the tasks if the port has been used by
other services - optional:
C:Userssvemala>netstat -ano | findstr :9080
TCP 0.0.0.0:9080 0.0.0.0:0 LISTENING 31576
TCP [::]:9080 [::]:0 LISTENING 31576
C:Userssvemala>taskkill /PID 31576 /F
SUCCESS: The process with PID 31576 has been terminated.
C:Userssvemala>](https://image.slidesharecdn.com/javamicroservicesdockerusecase1-200929063056/85/A-Java-Microservices-Spring-Boot-and-Docker-case-study-32-320.jpg)
A Java Microservices Spring Boot and Docker case study.
- 1. A Java Microservices project using Spring Boot deployment on Docker – Hands-on Case Study. Mr. Subramanyam Tirumani Vemala [email protected]
- 2. Detailed Steps: This document contains the detailed steps with screenshots, to setup a Java Microservices project using Spring Boot, generate jar and deploy it on Docker: Target Audience: All, with knowledge of Java or coding and Containerization. Artifacts needed: 1. JDK11 2. Eclipse – IDE 3. Docker 4. Internet Implementation Steps: 1. Create a Spring Starter Project. 2. Add the necessary classes and dependencies in the pom.xml 3. Run as Spring Boot App on the Eclipse. Check for the output both on the Console and the Browser. 4. Create the jar in the target folder, through maven install. 5. Create Dockerfile. 6. Use Build command to create the Docker image. 7. Run the command to deploy the Docker image. 8. Check the expected output on the Browser.
- 3. File – New – Spring Starter Project - Create
- 4. Provide the project details:
- 5. Choose the dependencies - Actuator:
- 6. Choose the dependencies - DevTools:
- 7. Choose the dependencies – Spring Web:
- 8. Project is created (subbu-case-study):
- 9. pom.xml – Deployment descriptor
- 10. Give the jar name in the pom.xml:
- 11. Create Controller with GetMapping and RestController:
- 15. Run as a Spring Boot App:
- 16. Tomcat started successfully and message can be seen on Console:
- 17. Run as Maven Install to create jar:
- 18. Jar is created in the Target folder:
- 22. Launch Power Shell – goto the Dockerfile folder:
- 23. Build the Docker image using the Dockerfile using the command: docker build –t <jar name> .
- 24. Docker Image created: docker ps
- 25. Run the Docker image using the command: docker run –p <port number mapped to the exposed port>:<Exposed port> <jar name>
- 30. Check for the output on the browser - Now no output, on the browser as the application is stopped: http://localhost:8080/message
- 31. Kill the tasks if the port has been used by other services - optional:
- 32. Kill the tasks if the port has been used by other services - optional: C:Userssvemala>netstat -ano | findstr :9080 TCP 0.0.0.0:9080 0.0.0.0:0 LISTENING 31576 TCP [::]:9080 [::]:0 LISTENING 31576 C:Userssvemala>taskkill /PID 31576 /F SUCCESS: The process with PID 31576 has been terminated. C:Userssvemala>
- 34. Appendix: Download the code from public GitGub: 1. HTTPS: https://github.com/subbugh/java-microservices-springboot-docker.git 2. SSH: [email protected]:subbugh/java-microservices-springboot-docker.git 3. Code Zip file: