Temporary base image set due to missing packages, cleanups

Dockerfile

 
 # hadolint ignore=DL3007
-FROM gitlab.vahanus.net:5050/vahanus/public/container-debian10:latest
+#FROM gitlab.vahanus.net:5050/vahanus/public/container-debian10:latest
+FROM ubuntu:18.04
 
 # hadolint ignore=DL3008
 RUN apt-get update \
@@ -13,7 +14,7 @@ RUN git clone https://github.com/plantuml/plantuml-server.git \
     && cd plantuml-server \
     && mvn package \
     && cp target/plantuml.war /var/lib/tomcat8/webapps/plantuml.war \
-    && chown tomcat8:tomcat8 /var/lib/tomcat8/webapps/plantuml.war \
+    && chown tomcat8:tomcat8 /var/lib/tomcat8/webapps/plantuml.war
 
 #    && service tomcat8 restart