Merge pull request #1 from OpenTOSCA/tomcatFix

Fix slow tomcat starting for VMs

Dockerfile

@@ -9,7 +9,8 @@ ENV TOMCAT_PASSWORD admin
 RUN rm /dev/random && ln -s /dev/urandom /dev/random \
     && wget https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
     && tar -C /usr/local/bin -xzvf dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
-    && rm dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz
+    && rm dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
+    && sed -ie "s/securerandom.source=file:\/dev\/random/securerandom.source=file:\/dev\/.\/urandom/g" /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security/java.security
 
 ADD tomcat-users.xml.tpl ${CATALINA_HOME}/conf/tomcat-users.xml.tpl
 ADD manager.xml ${CATALINA_HOME}/conf/Catalina/localhost/manager.xml