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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.octoprint;
baseConfig = {
plugins.curalegacy.cura_engine = "${pkgs.curaengine_stable}/bin/CuraEngine";
server.host = cfg.host;
server.port = cfg.port;
webcam.ffmpeg = "${pkgs.ffmpeg.bin}/bin/ffmpeg";
};
fullConfig = recursiveUpdate cfg.extraConfig baseConfig;
cfgUpdate = pkgs.writeText "octoprint-config.yaml" (builtins.toJSON fullConfig);
pluginsEnv = package.python.withPackages (ps: [ps.octoprint] ++ (cfg.plugins ps));
package = pkgs.octoprint;
in
{
##### interface
options = {
services.octoprint = {
enable = mkEnableOption "OctoPrint, web interface for 3D printers";
host = mkOption {
type = types.str;
default = "0.0.0.0";
description = ''
Host to bind OctoPrint to.
'';
};
port = mkOption {
type = types.int;
default = 5000;
description = ''
Port to bind OctoPrint to.
'';
};
user = mkOption {
type = types.str;
default = "octoprint";
description = "User for the daemon.";
};
group = mkOption {
type = types.str;
default = "octoprint";
description = "Group for the daemon.";
};
stateDir = mkOption {
type = types.path;
default = "/var/lib/octoprint";
description = "State directory of the daemon.";
};
plugins = mkOption {
default = plugins: [];
defaultText = "plugins: []";
example = literalExample "plugins: with plugins; [ m33-fio stlviewer ]";
description = "Additional plugins to be used. Available plugins are passed through the plugins input.";
};
extraConfig = mkOption {
type = types.attrs;
default = {};
description = "Extra options which are added to OctoPrint's YAML configuration file.";
};
};
};
##### implementation
config = mkIf cfg.enable {
users.users = optionalAttrs (cfg.user == "octoprint") {
octoprint = {
group = cfg.group;
uid = config.ids.uids.octoprint;
};
};
users.groups = optionalAttrs (cfg.group == "octoprint") {
octoprint.gid = config.ids.gids.octoprint;
};
systemd.tmpfiles.rules = [
"d '${cfg.stateDir}' - ${cfg.user} ${cfg.group} - -"
];
systemd.services.octoprint = {
description = "OctoPrint, web interface for 3D printers";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
path = [ pluginsEnv ];
preStart = ''
if [ -e "${cfg.stateDir}/config.yaml" ]; then
${pkgs.yaml-merge}/bin/yaml-merge "${cfg.stateDir}/config.yaml" "${cfgUpdate}" > "${cfg.stateDir}/config.yaml.tmp"
mv "${cfg.stateDir}/config.yaml.tmp" "${cfg.stateDir}/config.yaml"
else
cp "${cfgUpdate}" "${cfg.stateDir}/config.yaml"
chmod 600 "${cfg.stateDir}/config.yaml"
fi
'';
serviceConfig = {
ExecStart = "${pluginsEnv}/bin/octoprint serve -b ${cfg.stateDir}";
User = cfg.user;
Group = cfg.group;
};
};
};
}
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