tomcat-docker

An example of an docker image containing tomcat 8 and oracle jdk 8

To run with tomcat maven plugin on local env

• mvn clean install
• mvn tomcat7:run

To run dockerfile

MAVEN

mvn clean install -P docker

DOCKER COMMAND LINES

• First copy paste the war from target directory to target/docker directory

$ cp target/tomcat-docker-1.0.0-SNAPSHOT.war target/docker/

• Then build the docker image (it can take some time as it's curling oracle jdk and tomcat 8)

docker build -t tomcat-docker target/docker/

• Finally you're good to start the image in the background

docker run -d -p 8080:8080 tomcat-docker

• To connect in ssh to docker image with bash

docker exec -it ${IMAGE_ID_GENERATED_BY_DOCKER} bash

• To stop the container

docker stop $(docker ps -q --filter ancestor=tomcat-docker:1.0.0-SNAPSHOT)

Check that the app is running

http://localhost:8080/tomcatDocker/index.xhtml

About logs

Logs are written in docker image. /log/ for the application and /opt/tomcat/logs for tomcat. This is not a good practice, it is better to use a mount point to write logs on a NAS (check docker directive VOLUME to do that).