This is the most basic Docker Tomcat example to demonstrate how an image is built using a Dockerfile that copies a sample Java WAR file. Once you build your own Tomcat image, you can push it to your Docker Hub repository and then run a container using this image on any Linux host that is Docker-enabled.

You can clone this project:

git clone https://github.com/dchqinc/basic-docker-tomcat-example.git

cd into the directory of the cloned GitHub project

docker build -t <your-username>/tomcat:latest .

• Sign up for a free account on Docker Hub – https://hub.docker.com/

• Create a public repository called “tomcat”

docker login
docker push <your-username>/tomcat:latest

docker run -p 8080:8080 -d --name tomcat  <your-username>/tomcat:latest

You can access the sample application on this URL: http://:8080/sample

You can use this simple command to check the catalina logs of the Tomcat container

docker logs tomcat

You can run this command to enter the container and check the files under the webapps directory

docker exec -it tomcat bash
ls -lrt /usr/local/tomcat/webapps