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{
config,
lib,
pkgs,
utils,
...
}:
let
inherit (lib)
getExe
mkEnableOption
mkIf
mkOption
mkPackageOption
optionals
types
;
cfg = config.services.ustreamer;
in
{
options.services.ustreamer = {
enable = mkEnableOption "µStreamer, a lightweight MJPEG-HTTP streamer";
package = mkPackageOption pkgs "ustreamer" { };
autoStart = mkOption {
description = ''
Wether to start µStreamer on boot. Disabling this will use socket
activation. The service will stop gracefully after some inactivity.
Disabling this will set `--exit-on-no-clients=300`
'';
type = types.bool;
default = true;
example = false;
};
listenAddress = mkOption {
description = ''
Address to expose the HTTP server. This accepts values for
ListenStream= defined in {manpage}`systemd.socket(5)`
'';
type = types.str;
default = "0.0.0.0:8080";
example = "/run/ustreamer.sock";
};
device = mkOption {
description = ''
The v4l2 device to stream.
'';
type = types.path;
default = "/dev/video0";
example = "/dev/v4l/by-id/usb-0000_Dummy_abcdef-video-index0";
};
extraArgs = mkOption {
description = ''
Extra arguments to pass to `ustreamer`. See {manpage}`ustreamer(1)`
'';
type = with types; listOf str;
default = [ ];
example = [ "--resolution=1920x1080" ];
};
};
config = mkIf cfg.enable {
services.ustreamer.extraArgs =
[
"--device=${cfg.device}"
]
++ optionals (!cfg.autoStart) [
"--exit-on-no-clients=300"
];
systemd.services."ustreamer" = {
description = "µStreamer, a lightweight MJPEG-HTTP streamer";
after = [ "network.target" ];
requires = [ "ustreamer.socket" ];
wantedBy = mkIf cfg.autoStart [ "multi-user.target" ];
serviceConfig = {
ExecStart = utils.escapeSystemdExecArgs (
[
(getExe cfg.package)
"--systemd"
]
++ cfg.extraArgs
);
Restart = if cfg.autoStart then "always" else "on-failure";
DynamicUser = true;
SupplementaryGroups = [ "video" ];
NoNewPrivileges = true;
ProcSubset = "pid";
ProtectProc = "noaccess";
ProtectClock = "yes";
DeviceAllow = [ cfg.device ];
};
};
systemd.sockets."ustreamer" = {
wantedBy = [ "sockets.target" ];
partOf = [ "ustreamer.service" ];
socketConfig = {
ListenStream = cfg.listenAddress;
};
};
};
}