abhay8nitt / docker-spring

A dockerized spring application

1. Create a maven project, add dependencies into the pom.xml file.

2. Run mvn clean install to get the jar under target folder

3. Create/Re-use the Dockerfile similar to the one under this repo else refer to this link

4. Run Kafka server and zookeeper. Create a test topic - e.g. "sometopic"

5. Use the following commands to create and run the project as a docker image

   • docker build -t spring-docker . ( run from the directory where the docker file is placed else provide the absolute path. Use -f switch to add the filepath)
   • Run the docker image docker run -p 8080:8080 spring-docker
   • If required use the container id to enter into the docker shell docker exec -it a3067a0d1ed4 /bin/bash

6. From the browser or postman execute commands to do CRUD operations

   • GET localhost:8080/students/all
   • GET localhost:8080/students/1
   • POST localhost:8080/students/ Body:: { "id": 23, "name": "Student23", "course": "JavaScript" }

7. Spring boot security is enabled by adding the following dependency, the autoconfiguration detects and adds a default security layer. The logs can be checked for the default security password generated. The default username is 'user' and the password is thed default security password.

8. To disable auto configuration add an annontation @EnableAutoConfiguration(exclude={add the security class here})