Can install Oracle JDK at buildtime

.gitignore

@@ -0,0 +1 @@
+*.rpm

Dockerfile

@@ -13,6 +13,9 @@ ARG imagename=shibboleth_idp
 ARG version=3.3.0
 ARG tierversion=17020
 ARG tierbuild=$tierbuild
+
+ARG oracle_jdk_rpm=jdk-8u121-linux-x64.rpm
+
 ENV VERSION=$version
 ENV TIERVERSION=$tierversion
 ENV TIERBUILD=$tierbuild
@@ -34,6 +37,14 @@ RUN yum -y install \
     wget \
     && yum -y clean all
 
+COPY $oracle_jdk_rpm /tmp
+
+RUN echo $oracle_jdk_rpm && yum -y install /tmp/$oracle_jdk_rpm && \
+    rm -f /tmp/$oracle_jdk_rpm && \
+    alternatives --install /usr/bin/java jar $JAVA_HOME/bin/java 200000 && \
+    alternatives --install /usr/bin/javaws javaws $JAVA_HOME/bin/javaws 200000 && \
+    alternatives --install /usr/bin/javac javac $JAVA_HOME/bin/javac 200000
+
 ENV SHIB_RELDIR=http://shibboleth.net/downloads/identity-provider/$VERSION
 ENV SHIB_PREFIX=shibboleth-identity-provider-$VERSION
 ENV JAVA_HOME /usr/java/latest

README.md

@@ -0,0 +1,19 @@
+# Shibboleth IdP Standalone
+
+This version is designed for standalone, native Docker experience that should meet expectations for those who wish to operate Shibboleth IdP as a native Docker service.
+
+## Before You Build
+
+### Acquiring Oracle Java
+
+
+You should visit a page similar to [this one](http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html) at Oracle to download the Oracle JDK.
+
+Select *the Linux x64 RPM* and agree to the Oracle Binary Code License Agreement.  You'll ultimately need to mount this RPM in your invocation.
+
+
+## Building
+
+```
+docker build --build-arg ORACLE_JDK_RPM=jdk-8u121-linux-x64.rpm .
+```