Dockerizing a simple springboot application

Running springboot in VScode

1. Search spring in extension, download top 4 extensions.

2. Search java in extension tab, download the first extension by Microsoft.

Installing Java and setting up VSCode for Springboot development

• Refer video here: https://www.youtube.com/watch?v=2qbf4Duqncw

Creating Docker container using springboot

• Refer video here: https://www.youtube.com/watch?v=3SNKdr3f9Io

Testing whether your service is running

curl localhost:8000/api/hw output: Hello World

Creating jar file in java

• Creating jar file in target folder

mvn clean package

• Running jar file

java -jar hw-0.0.0.1-SNAPSHOT.jar

Docker command for running the springboot application

• Running docker container at port 8000 with springboot application port as 8080

docker run -p 8000:8080 springapi # 8080 (Springboot applicaiton port), forwarding it to 8000 (docker port)

• Running the container in dormant mode (-d) - (No prompt will be shown, container will be runnign silently)

docker run -d -p 8000:8080 springapi

• Removing docker container with particular sha

docker rm -f 783f7fb3c2c5

• See running docker containers

docker container ls

Docker Commands

• Checking docker images

docker images

• Checking if container is running

docker ps -a # -a shows dormat containers as well

• Starting docker container

docker start da98

• Stoping docker container

docker stop da98 # docker stop sha-value

• Checking logs of Docker container since creation

docker logs -f da98 # docker logs -f sha-value

• Executing docker in interactive mode

docker exec -it da98 sh OR docker exec -it da98 bash

Commiting changes

1. git init
2. git add .
3. git commit -m "Add changes"
4. git remote add origin https://github.com/afrozchakure/Springboot-Docker.git
5. git push -u origin main