Configuring twitch lambdabot as a service on NixOS - linux

Question

What I tried:
in /etc/nixos/configuration.nix:
services.lambdabot.enable = true;
services.lambdabot.script ="
rc /var/lib/lambdabot/.lambdabot/creds.rc
irc-connect twitch irc.chat.twitch.tv 6667 IsoMorpheus Lambda_Robots:_100%_Loyal
admin + twitch:IsoMorpheus
join twitch:#freeman42x";
in /var/lib/lambdabot/.lambdabot/creds.rc:
irc-password oauth:6q9hoi2notaellmugrr3alh9yjx8ua
Then:
nixos-rebuild switch
chown lambdabot /var/lib/lambdabot/.lambdabot/creds.rc
systemctl restart lambdabot
Checking HTOP it can be seen that the service is running but the bot does not connect to the IRC channel.
Settings from the manual:
services.lambdabot.enable
Enable the Lambdabot IRC bot
Type: boolean
Default: false
Declared by:
<nixpkgs/nixos/modules/services/networking/lambdabot.nix>
services.lambdabot.script
Lambdabot script
Type: string
Default: ""
Declared by:
<nixpkgs/nixos/modules/services/networking/lambdabot.nix>
Launching lambdabot manually it connects fine and it replies to commands:
https://github.com/lambdabot/lambdabot/blob/1d1ed3e7980081c9f356f8d2fd8ca2771c0ed4f4/lambdabot-core/README.md#connecting
Any suggestions of how to launch it as a service?

Answer 1

[root#nixos:/home/neo]# systemctl status lambdabot
● lambdabot.service - Lambdabot daemon
Loaded: loaded (/nix/store/ifwgvglg3vzndk5wssb66vdz9j9rdflf-unit-lambdabot.service/lambdabot.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2018-01-27 23:53:33 EET; 1min 32s ago
Main PID: 4749 (lambdabot-start)
Tasks: 8 (limit: 4915)
CGroup: /system.slice/lambdabot.service
├─4749 /nix/store/jgw8hxx7wzkyhb2dr9hwsd9h2caaasdc-bash-4.4-p12/bin/bash -e /nix/store/0c6ya3n4bz6id840f4gprv3ly24808rn-unit-script/bin/lambdabot-start
├─4753 /nix/store/jgw8hxx7wzkyhb2dr9hwsd9h2caaasdc-bash-4.4-p12/bin/bash -e /nix/store/0c6ya3n4bz6id840f4gprv3ly24808rn-unit-script/bin/lambdabot-start
├─4754 /nix/store/h0z0pf4ix0ilx5j1x6sk1rfkpjcyjhvc-lambdabot-5.1.0.1/bin/lambdabot
└─4755 cat /run/lambdabot/offline
Jan 27 23:53:33 nixos systemd[1]: Started Lambdabot daemon.
Jan 27 23:53:37 nixos lambdabot-start[4749]: [WARNING] Plugin.seen: WARNING: failed to read Seen module state: Data.Binary.Get.runGet at position 0: not enough bytes
Jan 27 23:53:37 nixos lambdabot-start[4749]: CallStack (from HasCallStack):
Jan 27 23:53:37 nixos lambdabot-start[4749]: error, called at libraries/binary/src/Data/Binary/Get.hs:342:5 in binary-0.8.3.0:Data.Binary.Get
Jan 27 23:53:37 nixos lambdabot-start[4749]: Plugin `offlineRC' failed with: /var/lib/lambdabot/.lambdabot/State: createDirectory: permission denied (Permission denied)
The issue is that I set permission on the creds.rc file instead of on the entire folder, fix:
chown -R lambdabot:users /var/lib/lambdabot/.lambdabot