Set up a CERN OpenStack virtual machine to run acron jobs. See https://alexpearce.me/2016/06/creating-a-vm-for-acron-jobs/ for more.

setup_acron_vm.sh

#!/bin/sh

echo 'Provisioning acron VM'

# Install what we'll need
sudo yum install -y cern-config-users cern-get-keytab arc-server

# Make sure we ready for Kerberos-authenticated jobs
sudo cern-get-keytab --force

# Open the firewall for the acron communication
sudo firewall-cmd --zone=public --add-port=4241/tcp --permanent
sudo firewall-cmd --reload

# Set up AFS
sudo sed -i"" "s/ \-dynroot//" /etc/sysconfig/openafs

# Let the internet daemon know about the acron communication service
echo -e 'arc 4241/tcp\n' | sudo tee -a /etc/services
sudo service xinetd restart

# Reboot for good measure
sudo reboot now

echo 'Provisioning acron VM complete'