Docker

Installing Oracle Java into a container

Add to the docker file

ARG JAVA_MAJOR_VERSION=${JAVA_MAJOR_VERSION:-8}
ARG JAVA_UPDATE_VERSION=${JAVA_UPDATE_VERSION:-172}
ARG JAVA_BUILD_NUMBER=${JAVA_BUILD_NUMBER:-11}
ARG JAVA_DOWNLOAD_TOKEN=${JAVA_DOWNLOAD_TOKEN:-a58eab1ec242421181065cdc37240b08}
## http://download.oracle.com/otn-pub/java/jdk/8u172-b11/a58eab1ec242421181065cdc37240b08/jdk-8u172-linux-x64.tar.gz
## http://download.oracle.com/otn-pub/java/jdk/8u162-b12/0da788060d494f5095bf8624735fa2f1/jdk-8u162-linux-x64.tar.gz
ARG UPDATE_VERSION=${JAVA_MAJOR_VERSION}u${JAVA_UPDATE_VERSION}
ARG BUILD_VERSION=b${JAVA_BUILD_NUMBER}

ENV JAVA_HOME /usr/jdk1.${JAVA_MAJOR_VERSION}.0_${JAVA_UPDATE_VERSION}
ENV PATH $PATH:$JAVA_HOME/bin
ENV INSTALL_DIR /usr

RUN curl -sL --retry 3 --insecure --header "Cookie: oraclelicense=accept-securebackup-cookie;" "http://download.oracle.com/otn-pub/java/jdk/${UPDATE_VERSION}-${BUILD_VERSION}/${JAVA_DOWNLOAD_TOKEN}/jdk-${UPDATE_VERSION}-linux-x64.tar.gz" \
  | gunzip \
  | tar x -C $INSTALL_DIR/ \
  && ln -s $JAVA_HOME $INSTALL_DIR/java \
  && rm -rf $JAVA_HOME/man

You might also need to apt-get libgtk-3-0 for GUI java apps

How docker overlay networking works

http://blog.nigelpoulton.com/demystifying-docker-overlay-networking/
https://blog.docker.com/2016/12/understanding-docker-networking-drivers-use-cases/
https://docs.docker.com/network/overlay/

Docker Swarm ports