phpfpm service: restructured pool configuration

1 files changed, 96 insertions, 0 deletions

diff --git a/nixos/modules/services/web-servers/phpfpm/default.nix b/nixos/modules/services/web-servers/phpfpm/default.nix
new file mode 100644
index 00000000000..6befddf9f52
--- /dev/null
+++ b/nixos/modules/services/web-servers/phpfpm/default.nix
@@ -0,0 +1,96 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.phpfpm;
+
+  stateDir = "/run/phpfpm";
+
+  pidFile = "${stateDir}/phpfpm.pid";
+
+  mkPool = n: p: ''
+    [${n}]
+    listen = ${p.listen}
+    ${p.extraConfig}
+  '';
+
+  cfgFile = pkgs.writeText "phpfpm.conf" ''
+    [global]
+    pid = ${pidFile}
+    error_log = syslog
+    daemonize = yes
+    ${cfg.extraConfig}
+
+    ${concatStringsSep "\n" (mapAttrsToList mkPool cfg.pools)}
+  '';
+
+  phpIni = pkgs.writeText "php.ini" ''
+    ${readFile "${cfg.phpPackage}/etc/php.ini"}
+
+    ${cfg.phpOptions}
+  '';
+
+in {
+
+  options = {
+    services.phpfpm = {
+      extraConfig = mkOption {
+        type = types.lines;
+        default = "";
+        description = ''
+          Extra configuration that should be put in the global section of
+          the PHP FPM configuration file. Do not specify the options
+          <literal>pid</literal>, <literal>error_log</literal> or
+          <literal>daemonize</literal> here, since they are generated by
+          NixOS.
+        '';
+      };
+
+      phpPackage = mkOption {
+        type = types.package;
+        default = pkgs.php;
+        defaultText = "pkgs.php";
+        description = ''
+          The PHP package to use for running the FPM service.
+        '';
+      };
+
+      phpOptions = mkOption {
+        type = types.lines;
+        default = "";
+        example =
+          ''
+            date.timezone = "CET"
+          '';
+        description =
+          "Options appended to the PHP configuration file <filename>php.ini</filename>.";
+      };
+
+      pools = mkOption {
+        type = types.attrsOf (types.submodule (import ./pool-options.nix {
+          inherit lib;
+        }));
+        default = {};
+        description = ''
+          If no pools are defined, the phpfpm service is disabled.
+        '';
+      };
+    };
+  };
+
+  config = mkIf (cfg.pools != {}) {
+
+    systemd.services.phpfpm = {
+      wantedBy = [ "multi-user.target" ];
+      preStart = ''
+        mkdir -p "${stateDir}"
+      '';
+      serviceConfig = {
+        ExecStart = "${cfg.phpPackage}/bin/php-fpm -y ${cfgFile} -c ${phpIni}";
+        PIDFile = pidFile;
+      };
+    };
+
+  };
+}