Docker container: CentOS 7 + Java 8 + Tomcat 8

Install Docker

## Remove all Packages from Yum Repo
sudo yum -y remove docker \
		docker-common \
		container-selinux \
		docker-selinux \
		docker-engine
## Setup Yum repo for latest Docker-CE Contiainer Engine

sudo yum -y install yum-utils

sudo yum-config-manager \
	--add-repo \
	https://download.docker.com/linux/centos/docker-ce.repo

sudo yum makecache fast && sudo yum -y update

sudo yum list docker-ce.x86_64 --showduplicates |sort -r

sudo yum install docker-ce-<VERSION>

sudo systemctl enable docker && sudo systemctl start docker

sudo usermod -aG docker $(whoami)

Logout and log back in 

## Confirm the Docker Version and Run a Test Container that Prints the Message and exits.

docker -v && docker run hello-world 

Build the image

git clone https://github.com/ttadepalli86/tomcat.git
cd tomcat
docker build -t ttadepalli86/tomcat .

How to use

Put your war under the /opt/tomcat/webapps directory and run the following command.

docker run -v /opt/tomcat/webapps:/opt/tomcat/webapps -v /opt/tomcat/logs:/opt/tomcat/logs -p 8080:8080 -i -t --name centos-tomcat8 ttadepalli86/tomcat

Once you run it, you can start the container with docker start centos-tomcat in next time and log file will be under the /opt/tomcat/logs directory.

Also, if you got some error, you can remove the container with docker rm centos-tomcat. Your current container list will be show with docker ps -a.

For Mac user, you must share the directory /opt/tomcat/webapps and /opt/tomcat/logs on Docker > Preferences > File Sharing.

Versions

If you got error while build the docker image, please check the latest version of Java and Tomcat.

Software	Version	Note
CentOS	7
Java	8u112	Java Release Note
Apache Tomcat	8.5.9	Tomcat Download Page

Docker Official Image for Tomcat is also available.