134 lines
2.9 KiB
Nix
134 lines
2.9 KiB
Nix
{ config, pkgs, ... }:
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let
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name = "radio";
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mainUser = config.users.extraUsers.mainUser;
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inherit (config.krebs.lib) genid;
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admin-password = import <secrets/icecast-admin-pw>;
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source-password = import <secrets/icecast-source-pw>;
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in {
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users.users = {
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"${name}" = rec {
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inherit name;
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group = name;
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uid = genid name;
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description = "radio manager";
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home = "/home/${name}";
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useDefaultShell = true;
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createHome = true;
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openssh.authorizedKeys.keys = [
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config.krebs.users.lass.pubkey
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];
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};
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};
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users.groups = {
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"radio" = {};
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};
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krebs.per-user.${name}.packages = with pkgs; [
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ncmpcpp
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mpc_cli
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tmux
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];
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security.sudo.extraConfig = ''
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${mainUser.name} ALL=(${name}) NOPASSWD: ALL
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'';
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services.mpd = {
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enable = true;
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group = "radio";
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musicDirectory = "/home/radio/the_playlist/music";
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extraConfig = ''
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audio_output {
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type "shout"
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encoding "ogg"
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name "my cool stream"
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host "localhost"
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port "8000"
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mount "/radio.ogg"
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# This is the source password in icecast.xml
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password "${source-password}"
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# Set either quality or bit rate
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# quality "5.0"
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bitrate "128"
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format "44100:16:1"
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# Optional Parameters
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user "source"
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# description "here is my long description"
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# genre "jazz"
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} # end of audio_output
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'';
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};
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services.icecast = {
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enable = true;
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hostname = "config.krebs.build.host.name";
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admin.password = admin-password;
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extraConf = ''
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<authentication>
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<source-password>${source-password}</source-password>
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</authentication>
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'';
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};
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krebs.iptables = {
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tables = {
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filter.INPUT.rules = [
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{ predicate = "-p tcp --dport 8000"; target = "ACCEPT"; }
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];
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};
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};
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systemd.timers.radio = {
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description = "radio autoadder timer";
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wantedBy = [ "timers.target" ];
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timerConfig = {
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OnCalendar = "*:*";
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};
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};
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systemd.services.radio = let
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autoAdd = pkgs.writeDash "autoAdd" ''
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LIMIT=$1 #in secconds
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addRandom () {
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mpc add "$(mpc ls | shuf -n1)"
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}
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timeLeft () {
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playlistDuration=$(mpc --format '%time%' playlist | awk -F ':' 'BEGIN{t=0} {t+=$1*60+$2} END{print t}')
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currentTime=$(mpc status | awk '/^\[playing\]/ { sub(/\/.+/,"",$3); split($3,a,/:/); print a[1]*60+a[2] }')
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expr ''${playlistDuration:-0} - ''${currentTime:-0}
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}
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if test $(timeLeft) -le $LIMIT; then
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addRandom
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fi
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'';
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in {
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description = "radio playlist autoadder";
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after = [ "network.target" ];
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path = with pkgs; [
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gawk
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mpc_cli
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];
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restartIfChanged = true;
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serviceConfig = {
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Restart = "always";
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ExecStart = "${autoAdd} 100";
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};
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};
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}
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