Debian Jessie Apache Tomcat 7 Dockerfile

Dockerfile

FROM debian:jessie

MAINTAINER Nuno Taborda <@nunogt>

# Update the system
RUN apt-get update && apt-get -y upgrade

# Install openjdk and tomcat
RUN apt-get install -y openjdk-7-jre-headless tomcat7 libtcnative-1

# Patch init for start-stop-daemon not to require /proc scanning
RUN sed -i s,--exec,--startas,g /etc/init.d/tomcat7

# Cleanup
RUN apt-get clean -y
RUN rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

# Export Java environment variables
ENV JRE_HOME /usr/lib/jvm/java-7-openjdk-amd64
ENV JAVA_OPTS -Djava.awt.headless=true -server

# Tell Docker we're exposing this port
EXPOSE 8080

# Bootstrap Tomcat and never return
CMD /etc/init.d/tomcat7 start && sleep infinity

Build as follows:

git clone https://gist.github.com/ce74d02924b05be9857d.git
cd ce74d02924b05be9857d
docker build -t nunogt/tomcat7 .

Then run:

docker run -dt -P nunogt/tomcat7

Check host port mappings:

docker ps