sed -i 's|#baseurl=http://mirror.centos.org/centos|baseurl=http://mirrors.ocf.berkeley.edu/centos|' /etc/yum.repos.d/*.repo
yum -y update
- yum -y install wget unzip socat java-1.8.0-openjdk-headless
+ yum -y install wget unzip socat java-11-openjdk-headless
sed -i 's|#networkaddress.cache.ttl=-1|networkaddress.cache.ttl=10|' /usr/lib/jvm/jre/lib/security/java.security
# Set up mysql