blob: 518ab8fa50d40c13e0b0a23801915dec24e1d07c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
{ config, pkgs, ... }:
with config.krebs.lib;
let
name = "radio";
mainUser = config.users.extraUsers.mainUser;
inherit (config.krebs.lib) genid;
admin-password = import <secrets/icecast-admin-pw>;
source-password = import <secrets/icecast-source-pw>;
add_random = pkgs.writeDashBin "add_random" ''
mpc add "$(mpc ls | shuf -n1)"
'';
skip_track = pkgs.writeDashBin "skip_track" ''
${add_random}/bin/add_random
echo skipping: "$(${print_current}/bin/print_current)"
${pkgs.mpc_cli}/bin/mpc -q next
'';
print_current = pkgs.writeDashBin "print_current" ''
${pkgs.mpc_cli}/bin/mpc current -f %file%
'';
in {
users.users = {
"${name}" = rec {
inherit name;
group = name;
uid = genid name;
description = "radio manager";
home = "/home/${name}";
useDefaultShell = true;
createHome = true;
openssh.authorizedKeys.keys = [
config.krebs.users.lass.pubkey
];
};
};
users.groups = {
"radio" = {};
};
krebs.per-user.${name}.packages = with pkgs; [
add_random
skip_track
print_current
ncmpcpp
mpc_cli
tmux
];
security.sudo.extraConfig = ''
${mainUser.name} ALL=(${name}) NOPASSWD: ALL
'';
services.mpd = {
enable = true;
group = "radio";
musicDirectory = "/home/radio/the_playlist/music";
extraConfig = ''
audio_output {
type "shout"
encoding "ogg"
name "my cool stream"
host "localhost"
port "8000"
mount "/radio.ogg"
# This is the source password in icecast.xml
password "${source-password}"
# Set either quality or bit rate
# quality "5.0"
bitrate "128"
format "44100:16:1"
# Optional Parameters
user "source"
# description "here is my long description"
# genre "jazz"
} # end of audio_output
'';
};
services.icecast = {
enable = true;
hostname = "config.krebs.build.host.name";
admin.password = admin-password;
extraConf = ''
<authentication>
<source-password>${source-password}</source-password>
</authentication>
'';
};
krebs.iptables = {
tables = {
filter.INPUT.rules = [
{ predicate = "-p tcp --dport 8000"; target = "ACCEPT"; }
];
};
};
systemd.timers.radio = {
description = "radio autoadder timer";
wantedBy = [ "timers.target" ];
timerConfig = {
OnCalendar = "*:*";
};
};
systemd.services.radio = let
autoAdd = pkgs.writeDash "autoAdd" ''
LIMIT=$1 #in secconds
timeLeft () {
playlistDuration=$(mpc --format '%time%' playlist | awk -F ':' 'BEGIN{t=0} {t+=$1*60+$2} END{print t}')
currentTime=$(mpc status | awk '/^\[playing\]/ { sub(/\/.+/,"",$3); split($3,a,/:/); print a[1]*60+a[2] }')
expr ''${playlistDuration:-0} - ''${currentTime:-0}
}
if test $(timeLeft) -le $LIMIT; then
${add_random}/bin/add_random
fi
'';
in {
description = "radio playlist autoadder";
after = [ "network.target" ];
path = with pkgs; [
gawk
mpc_cli
];
restartIfChanged = true;
serviceConfig = {
Restart = "always";
ExecStart = "${autoAdd} 100";
};
};
}
|
