Adds some necessary files

LinuxGeneralCompiler/Dockerfile

@@ -87,9 +87,21 @@ RUN apt-get install -y rsync zip
 WORKDIR /root/.ssh
 ADD ./id_rsa ./id_rsa
 ADD ./id_rsa.pub ./id_rsa.pub
-
 RUN chmod 0600 id_rsa
 
+ARG MVN_URL
+ARG MVN_USER
+ARG MVN_PASS
+
+WORKDIR /root/.gradle
+ADD ./gradle.properties ./
+
+ENV MAVEN_URL=${MVN_URL}
+ENV MAVEN_USERNAME=${MVN_USER}
+ENV MAVEN_PASSWORD=${MVN_PASS}
+
+WORKDIR /
+
 # Precache SSH Host Keys
 RUN ssh-keyscan github.com >> /root/.ssh/known_hosts
 RUN ssh-keyscan -p 1212 git.zontreck.com >> /root/.ssh/known_hosts