Spring Boot Docker Project
Used the following guide: https://spring.io/guides/gs/spring-boot-docker/
Prerequisites
- Install Docker Desktop
- Create an account at hub.docker.com
- Create a Docker repository for this project: See "Setup Docker Repo" below
Setup Docker Repo
Create Docker repository to match below settings in pom.xml
<docker.image.prefix>dedjer</docker.image.prefix><repository>${docker.image.prefix}/${project.artifactId}</repository>
Go to http://hub.docker.com
Build and push to Docker Hub
Create repository > lab-springboot-docker
Build project
mvn install dockerfile:build
Push image to Docker Hub
docker push dedjer/lab-springboot-docker
Try out your Docker image locally
Check that you have the image locally
docker images
REPOSITORY TAG IMAGE ID CREATED SIZE dedjer/lab-springboot-docker latest 62cdd5aad631 5 minutes ago 125MB
Run your Docker image in a container and use port 5000 so you can view it in your browser
docker run --name lab-docker -p 5000:8080 -t dedjer/lab-springboot-docker
Launch your browser to verify container is working. You should see "Hello Docker World" if things worked.
Stop your Docker container
CTRL-C
docker stop lab-docker
Optional: Delete your container and image
Find your container id
docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 687f2a438c27 dedjer/lab-springboot-docker "java -cp app:app/li…" 29 seconds ago Up 27 seconds 0.0.0.0:5000->8080/tcp lab-docker
Remove your container using the first 3 characters of the CONTAINER ID
docker rm 687
Find your image id
docker images
REPOSITORY TAG IMAGE ID CREATED SIZE dedjer/lab-springboot-docker latest 62cdd5aad631 5 minutes ago 125MB
Delete your image using the first 3 characters of the IMAGE ID
docker rmi 62c
Optional: Pull your Docker image from Docker hub
NOTE: This command can also be found on "Repositories" page at hub.docker.com
docker pull dedjer/lab-springboot-docker:latest
Troubleshooting
Error during build: denied: requested access to the resource is denied unauthorized: authentication required
Solution: Make sure Docker Desktop is installed and you are logged into your Docker account