core-agent-linux/vm-systemd/qubes-yum-proxy.service

[Unit]
Description=Qubes yum proxy (tinyproxy)
ConditionPathExists=/var/run/qubes-service/qubes-yum-proxy
After=iptables.service

[Service]
ExecStartPre=/usr/bin/install -d --owner tinyproxy --group tinyproxy /var/run/tinyproxy
ExecStartPre=/usr/lib/qubes/iptables-yum-proxy start
ExecStart=/usr/sbin/tinyproxy -d -c /etc/tinyproxy/tinyproxy-qubes-yum.conf
ExecStopPost=/usr/lib/qubes/iptables-yum-proxy stop

[Install]
WantedBy=multi-user.target