Renamed Dockerfile to Containerfile

hello-java/Containerfile

@@ -0,0 +1,28 @@
+FROM   registry.access.redhat.com/ubi8/ubi:8.0
+
+MAINTAINER   Red Hat Training <training@redhat.com>
+
+# command line options to pass to the JVM
+ENV	  JAVA_OPTIONS -Xmx512m
+
+
+# Install the Java runtime, create a user for running the app, and set permissions
+RUN   yum install -y --disableplugin=subscription-manager java-1.8.0-openjdk-headless && \
+      yum clean all --disableplugin=subscription-manager -y && \
+      useradd wildfly && \
+      mkdir -p /opt/app-root/bin
+
+# Copy the runnable fat JAR to the container.
+ADD   https://github.com/RedHatTraining/DO288-apps/releases/download/OCP-4.1-1/hello-java.jar /opt/app-root/bin/
+
+COPY  run-app.sh /opt/app-root/bin/
+
+RUN   chown -R wildfly:wildfly /opt/app-root && \
+      chmod -R 700 /opt/app-root
+
+EXPOSE 8080
+
+USER  wildfly
+
+# Run the fat JAR
+CMD   /opt/app-root/bin/run-app.sh