jobytchacko / docker-springboot-rest

docker-springboot-rest

This service will be used to learn the dockerization

Steps

1. Create a springboot rest application
2. Create Docker file (created at the root folder)

Docker File commands

FROM openjdk:11 VOLUME /tmp COPY target/*.jar app.jar ENTRYPOINT ["java","-jar","/app.jar"]

Installed openjdk using FROM command. FROM will be the starting point always in a docker file Copied the jar file from target to app.jar Run the Jar file using the ENTRYPOINT command. ENTRYPOINT is used to run the executables

3. Build the springboot rest application - build & install. jar will be created at target folder
4. Create the docker image by build the docker file

docker build -t jobytchacko/springboot-rest-jc:1.0.0 .

docker image will be created. If we need to see the docker image list, run the following command docker images

5. Run the docker image

docker run -p 9090:9090 jobytchacko/springboot-rest-jc:1.0.0

the docker and application will be running. Java log can be seen

6. Verify the successfull run by hitting the rest url in browser http://localhost:9090/greeting

To see the list of images created

docker images

To see the list of running docker containers

docker ps

To see the list of docker containers exited

docker ps -a

To push the docker image to huub

docker push jobytchacko/springboot-rest-jc:1.0.0

Refer docker commands below https://collabnix.com/docker-cheatsheet/