Parameterized systemd service to support multiple `cloudflared tunnel`

cloudflared@.service

# /lib/systemd/system/cloudflared@.service
[Unit]
Description=Cloudflare Tunnels (%I)
After=network.target

[Service]
Type=simple
User=cloudflared
ExecStart=/usr/local/bin/cloudflared tunnel --config /etc/cloudflared/%i.yml
Restart=on-failure
RestartSec=10
KillMode=process

[Install]
WantedBy=multi-user.target

commands.bash

# Enable and start the service
systemctl enable cloudflared@config-ha
systemctl start cloudflared@config-ha

config-ha.yml

# /etc/cloudflared/config-ha.yml
hostname: {homeassistant.MYDOMAIN.COM}
url: https://{INTERNAL_IP}:8123
no-tls-verify: true
logfile: /var/log/cloudflared-ha.log
origincert: /etc/cloudflared/cert.pem