CLNRest: Unable to subscribe to all events about lightning

[rustyrussell]

OK, I suspect you are using an old pyln-client library! Try pip install pyln-client?

[bleetube]

The root cause seems to be my python environment. I thought I had ruled that out, but then I have managed to get a cli response from the plugin just now 🤷‍♂️. This indicates it was my fault to begin with. I need to figure out how to get a clean python venv to work from a systemd unit, otherwise I'm going to be running lightningd from a tmux shell lol. I'll close this soon, but I'm pretty sure I did this to myself somehow.

[bleetube]

Yep, confirmed it was my python environment. I needed to start fresh.

lightningd
2024-02-02T02:13:24.571Z INFO    lightningd: v23.11.2
2024-02-02T02:13:26.940Z INFO    plugin-bcli: bitcoin-cli initialized and connected to bitcoind.
Warning: option `ssl_version` is deprecated and it is ignored. Use ssl_context instead.
2024-02-02T02:13:30.142Z INFO    plugin-clnrest.py: REST server running at https://127.0.0.1:3010

[bleetube]

This is unrelated, but since I mentioned it, I fixed up my systemd service so it will use the clean python venv:

[Unit]
Description=Core Lightning

[Service]
User=lightning
Group=lightning
EnvironmentFile=/home/lightning/.env
ExecStart=/usr/local/bin/lightningd
RestartSec=300
Restart=always

[Install]
WantedBy=multi-user.target

Content of .env:

NOSTR_KEY=...
PATH=/home/lightning/venv/lightning/bin:/home/lightning/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/bin

In the past I was trying to just extend the existing $PATH by appending it after my python path there, but turns out when systemd sources those vars it does not handle the variable. Thus it has to be completely overwritten afaict.