BTCPayServer connection to CLN

[openoms]

Easy to do using the clues from the BTCPay Connect to a Lightning node page:

Make sure:

rpc-file-mode=0660

is in the clconf and CLN is restarted to apply.

Add the btcpay user the bitcoin group:

$ sudo usermod -a -G bitcoin btcpay

Check if the file is reachable by the btcpay user:

$ sudo -u btcpay ls -la  /home/bitcoin/.lightning/bitcoin/lightning-rpc
srw-rw---- 1 bitcoin bitcoin 0 May 28 18:57 /home/bitcoin/.lightning/bitcoin/lightning-rpc

Restart BTCPay:

sudo systemctl restart btcpayserver.service

Fill the Connection configuration for your custom Lightning node: box on the Connect to a Lightning node page with:

type=clightning;server=unix:///home/bitcoin/.lightning/bitcoin/lightning-rpc

and press the Test connection button to test.

[openoms]

Will make an entry in the CONNECT menu with this to be done automatically.