pyrox.dev
1# Felix server
2{ config, lib, pkgs, ... }:
3
4with lib;
5
6let
7
8 cfg = config.services.felix;
9
10in
11
12{
13
14 ###### interface
15
16 options = {
17
18 services.felix = {
19
20 enable = mkEnableOption (lib.mdDoc "the Apache Felix OSGi service");
21
22 bundles = mkOption {
23 type = types.listOf types.package;
24 default = [ pkgs.felix_remoteshell ];
25 defaultText = literalExpression "[ pkgs.felix_remoteshell ]";
26 description = lib.mdDoc "List of bundles that should be activated on startup";
27 };
28
29 user = mkOption {
30 type = types.str;
31 default = "osgi";
32 description = lib.mdDoc "User account under which Apache Felix runs.";
33 };
34
35 group = mkOption {
36 type = types.str;
37 default = "osgi";
38 description = lib.mdDoc "Group account under which Apache Felix runs.";
39 };
40
41 };
42
43 };
44
45
46 ###### implementation
47
48 config = mkIf cfg.enable {
49 users.groups.osgi.gid = config.ids.gids.osgi;
50
51 users.users.osgi =
52 { uid = config.ids.uids.osgi;
53 description = "OSGi user";
54 home = "/homeless-shelter";
55 };
56
57 systemd.services.felix = {
58 description = "Felix server";
59 wantedBy = [ "multi-user.target" ];
60
61 preStart = ''
62 # Initialise felix instance on first startup
63 if [ ! -d /var/felix ]
64 then
65 # Symlink system files
66
67 mkdir -p /var/felix
68 chown ${cfg.user}:${cfg.group} /var/felix
69
70 for i in ${pkgs.felix}/*
71 do
72 if [ "$i" != "${pkgs.felix}/bundle" ]
73 then
74 ln -sfn $i /var/felix/$(basename $i)
75 fi
76 done
77
78 # Symlink bundles
79 mkdir -p /var/felix/bundle
80 chown ${cfg.user}:${cfg.group} /var/felix/bundle
81
82 for i in ${pkgs.felix}/bundle/* ${toString cfg.bundles}
83 do
84 if [ -f $i ]
85 then
86 ln -sfn $i /var/felix/bundle/$(basename $i)
87 elif [ -d $i ]
88 then
89 for j in $i/bundle/*
90 do
91 ln -sfn $j /var/felix/bundle/$(basename $j)
92 done
93 fi
94 done
95 fi
96 '';
97
98 script = ''
99 cd /var/felix
100 ${pkgs.su}/bin/su -s ${pkgs.bash}/bin/sh ${cfg.user} -c '${pkgs.jre}/bin/java -jar bin/felix.jar'
101 '';
102 };
103 };
104}