autostart ngrok with systemd - put binary and ngrok.yml into /opt/ngrok/

ngrok.service

# put me in: /etc/systemd/system/
# ngrok binary: https://ngrok.com/download
# sudo chmod +x /opt/ngrok/ngrok
[Unit]
Description=ngrok
After=network.target

[Service]
ExecStart=/opt/ngrok/ngrok start --all --config /opt/ngrok/ngrok.yml
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
IgnoreSIGPIPE=true
Restart=always
RestartSec=3
Type=simple
User=daemon
Group=daemon

[Install]
WantedBy=multi-user.target

ngrok.yml

# doc: https://ngrok.com/docs#tunnel-definitions
authtoken: xxxx
region: eu
tunnels:
  ssh:
    proto: tcp
    addr: 22
#  myapp-http:
#    addr: 80
#    proto: http
#    hostname: example.com
#    auth: "user:secretpassword"
#    bind_tls: false
#  myapp-https:
#    addr: 443
#    proto: tls
#    hostname: example.com