Distro changed to centos 7

base-ubuntu/Dockerfile

+FROM ubuntu:18.04
+COPY docker-setup.sh /
+
+ENV JAVA_HOME='/usr/lib/jvm/java-11-oracle'
+RUN /bin/bash docker-setup.sh;
+
+

base-ubuntu/docker-setup.sh

+# Fix systemd-resolved problem
+apt update;
+
+# setup MySQL
+apt-get install -y debconf-utils;
+{ \
+echo mysql-community-server mysql-community-server/root-pass password ''; \
+echo mysql-community-server mysql-community-server/re-root-pass password ''; \
+} | debconf-set-selections \
+&& apt install -y mysql-server
+
+# Install dependencies
+export DEBIAN_FRONTEND=noninteractive
+export LC_ALL=C
+apt install -y openjdk-11-jdk python3 python3-pip git slapd ldap-utils rsync vim tmux entr less cmake zlib1g-dev uuid uuid-dev libssl-dev
+
+# Install XRootD
+apt install -y wget
+wget https://xrootd.slac.stanford.edu/download/v4.12.1/xrootd-4.12.1.tar.gz
+tar xvzf xrootd-4.12.1.tar.gz
+mkdir /build && cd /build
+cmake /xrootd-4.12.1 -DCMAKE_INSTALL_PREFIX=/usr -DENABLE_PERL=FALSE
+make && make install
+cd /
+
+