aboutsummaryrefslogtreecommitdiff
path: root/modules/websites/php-application.nix
blob: 20e2a5dde77311103aa2ab71c4ff53a4f54c3d1e (plain) (blame)
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
{ lib, config, ... }:
with lib;
let
  cfg = config.services.phpApplication;
  cfgByEnv = lists.groupBy (x: x.websiteEnv) (builtins.attrValues cfg.apps);
in
{
  options = with types; {
    services.phpApplication.apps = mkOption {
      default = {};
      description = ''
        php applications to define
        '';
      type = attrsOf (submodule {
        options = {
          varDir = mkOption {
            type = nullOr path;
            description = ''
              Path to application’s vardir.
              '';
          };
          varDirPaths = mkOption {
            type = attrsOf str;
            default = {};
            description = ''
              Map of additional folders => mode to create under varDir
              '';
          };
          mode = mkOption {
            type = str;
            default = "0700";
            description = ''
              Mode to apply to the vardir
              '';
          };
          phpSession = mkOption {
            type = bool;
            default = true;
            description = "Handle phpsession files separately in vardir";
          };
          phpListen = mkOption {
            type = nullOr str;
            default = null;
            description = "Name of the socket to listen to. Defaults to app name if null";
          };
          phpPool = mkOption {
            type = attrsOf str;
            default = {};
            description = "Pool configuration to append";
          };
          phpEnv = mkOption {
            type = attrsOf str;
            default = {};
            description = "Pool environment to append";
          };
          phpOptions = mkOption {
            type = lines;
            default = "";
            description = "php configuration to append";
          };
          phpOpenbasedir = mkOption {
            type = listOf path;
            default = [];
            description = ''
              paths to add to php open_basedir configuration in addition to app and vardir
              '';
          };
          phpWatchFiles = mkOption {
            type = listOf path;
            default = [];
            description = ''
              Path to other files to watch to trigger preStart scripts
              '';
          };
          websiteEnv = mkOption {
            type = str;
            description = ''
              website instance name to use
              '';
          };
          httpdUser = mkOption {
            type = str;
            default = config.services.httpd.user;
            description = ''
              httpd user to run the prestart scripts as.
              '';
          };
          httpdGroup = mkOption {
            type = str;
            default = config.services.httpd.group;
            description = ''
              httpd group to run the prestart scripts as.
              '';
          };
          httpdWatchFiles = mkOption {
            type = listOf path;
            default = [];
            description = ''
              Path to other files to watch to trigger httpd reload
              '';
          };
          app = mkOption {
            type = path;
            description = ''
              Path to application root
              '';
          };
          webappName = mkOption {
            type = nullOr str;
            default = null;
            description = ''
              Alias name for the app, to be used in services.websites.webappDirs
              '';
          };
          webRoot = mkOption {
            type = nullOr path;
            description = ''
              Path to the web root path of the application. May differ from the application itself (usually a subdirectory)
              '';
          };
          preStartActions = mkOption {
            type = listOf str;
            default = [];
            description = ''
              List of actions to run as apache user at preStart when
              whatchFiles or app dir changed.
              '';
          };
          serviceDeps = mkOption {
            type = listOf str;
            default = [];
            description = ''
              List of systemd services this application depends on
              '';
          };
        };
      });
    };
    # Read-only variables
    services.phpApplication.phpListenPaths = mkOption {
      type = attrsOf path;
      default = attrsets.mapAttrs' (name: icfg: attrsets.nameValuePair
        name config.services.phpfpm.pools."${name}".socket
      ) cfg.apps;
      readOnly = true;
      description = ''
        Full paths to listen for php
        '';
    };
    services.phpApplication.webappDirs = mkOption {
      type = attrsOf path;
      default = attrsets.filterAttrs (n: v: builtins.hasAttr n cfg.apps) config.services.websites.webappDirsPaths;
      readOnly = true;
      description = ''
        Stable name webapp dirs for httpd
        '';
    };
  };

  config = {
    services.websites.env = attrsets.mapAttrs' (name: cfgs: attrsets.nameValuePair
      name {
        modules = [ "proxy_fcgi" ];
        watchPaths = builtins.concatLists (map (c: c.httpdWatchFiles) cfgs);
      }
    ) cfgByEnv;

    services.phpfpm.pools = attrsets.mapAttrs' (name: icfg: attrsets.nameValuePair
      name {
        user = icfg.httpdUser;
        group = icfg.httpdUser;
        settings = {
          "listen.owner" = icfg.httpdUser;
          "listen.group" = icfg.httpdGroup;
          "php_admin_value[open_basedir]" = builtins.concatStringsSep ":" ([icfg.app icfg.varDir] ++ icfg.phpWatchFiles ++ icfg.phpOpenbasedir);
        }
        // optionalAttrs (icfg.phpSession) { "php_admin_value[session.save_path]" = "${icfg.varDir}/phpSessions"; }
        // icfg.phpPool;
        phpOptions = config.services.phpfpm.phpOptions + icfg.phpOptions;
        inherit (icfg) phpEnv;
      }
    ) cfg.apps;

    services.websites.webappDirs = attrsets.mapAttrs' (name: icfg: attrsets.nameValuePair
      (if icfg.webappName == null then name else icfg.webappName) icfg.webRoot
    ) (attrsets.filterAttrs (n: v: !isNull v.webRoot) cfg.apps);

    services.filesWatcher = attrsets.mapAttrs' (name: icfg: attrsets.nameValuePair
      "phpfpm-${name}" {
        restart = true;
        paths = icfg.phpWatchFiles;
      }
    ) (attrsets.filterAttrs (n: v: builtins.length v.phpWatchFiles > 0) cfg.apps);

    systemd.services = attrsets.mapAttrs' (name: icfg: attrsets.nameValuePair
      "phpfpm-${name}" {
        after = lib.mkAfter icfg.serviceDeps;
        wants = icfg.serviceDeps;
        preStart = lib.mkAfter (optionalString (!isNull icfg.varDir) ''
          watchFilesChanged() {
            ${optionalString (builtins.length icfg.phpWatchFiles == 0) "return 1"}
            [ ! -f "${icfg.varDir}"/watchedFiles ] \
              || ! sha512sum -c --status ${icfg.varDir}/watchedFiles
          }
          appDirChanged() {
            [ ! -f "${icfg.varDir}/currentWebappDir" -o \
              "${icfg.app}" != "$(cat ${icfg.varDir}/currentWebappDir 2>/dev/null)" ]
          }
          updateWatchFiles() {
            ${optionalString (builtins.length icfg.phpWatchFiles == 0) "return 0"}
            sha512sum ${builtins.concatStringsSep " " icfg.phpWatchFiles} > ${icfg.varDir}/watchedFiles
          }

          if watchFilesChanged || appDirChanged; then
            pushd ${icfg.app} > /dev/null
            ${builtins.concatStringsSep "\n  " (map (c: "/run/wrappers/bin/sudo -u ${icfg.httpdUser} ${c}") icfg.preStartActions) }
            popd > /dev/null
            echo -n "${icfg.app}" > ${icfg.varDir}/currentWebappDir
            updateWatchFiles
          fi
        '');
      }
    ) cfg.apps;

    system.activationScripts = attrsets.mapAttrs' (name: icfg: attrsets.nameValuePair
      name {
        deps = [];
        text = optionalString (!isNull icfg.varDir) ''
          install -m ${icfg.mode} -o ${icfg.httpdUser} -g ${icfg.httpdGroup} -d ${icfg.varDir}
          '' + optionalString (icfg.phpSession) ''
          install -m 0700 -o ${icfg.httpdUser} -g ${icfg.httpdGroup} -d ${icfg.varDir}/phpSessions
          '' + builtins.concatStringsSep "\n" (attrsets.mapAttrsToList (n: v: ''
            install -m ${v} -o ${icfg.httpdUser} -g ${icfg.httpdGroup} -d ${icfg.varDir}/${n}
            '') icfg.varDirPaths);
      }
    ) cfg.apps;
  };
}