1 files changed, 227 insertions, 0 deletions

diff --git a/flakes/etherpad-lite/flake.nix b/flakes/etherpad-lite/flake.nix
new file mode 100644
index 0000000..6e0d7db
--- /dev/null
+++ b/flakes/etherpad-lite/flake.nix
@@ -0,0 +1,227 @@
+{
+  description = "Your self-hosted, globally interconnected microblogging community";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+  inputs.nixpkgs = {
+    url = "github:NixOS/nixpkgs/840c782d507d60aaa49aa9e3f6d0b0e780912742";
+    flake = false;
+  };
+  inputs.etherpad-lite = {
+    url = "github:ether/etherpad-lite/1.8.3";
+    flake = false;
+  };
+  inputs.mypackages.url = "path:../mypackages";
+
+  outputs = { self, nixpkgs, etherpad-lite, flake-utils, mypackages }: flake-utils.lib.eachSystem ["x86_64-linux"] (system:
+    let
+      pkgs = import nixpkgs { inherit system; overlays = []; };
+      version = (builtins.fromJSON (builtins.readFile ./flake.lock)).nodes.etherpad-lite.original.ref;
+      inherit (pkgs) callPackage;
+    in rec {
+      packages.etherpad-lite = callPackage ./. { inherit (mypackages.mylibs) nodeEnv; src = etherpad-lite // { inherit version; }; };
+      defaultPackage = packages.etherpad-lite;
+      legacyPackages.etherpad-lite = packages.etherpad-lite;
+      checks = {
+        build = defaultPackage;
+      };
+    }
+  ) // rec {
+    overlays = {
+      etherpad-lite = final: prev: {
+        etherpad-lite = self.defaultPackage."${final.system}";
+      };
+    };
+    overlay = overlays.etherpad-lite;
+    nixosModule = { lib, pkgs, config, ... }:
+      let
+        name = "etherpad-lite";
+        cfg = config.services.etherpad-lite;
+      in
+        {
+          options.services.etherpad-lite = {
+            enable = lib.mkEnableOption "Enable Etherpad lite’s service";
+            user = lib.mkOption {
+              type = lib.types.str;
+              default = name;
+              description = "User account under which Etherpad lite runs";
+            };
+            group = lib.mkOption {
+              type = lib.types.str;
+              default = name;
+              description = "Group under which Etherpad lite runs";
+            };
+            dataDir = lib.mkOption {
+              type = lib.types.path;
+              default = "/var/lib/${name}";
+              description = ''
+                The directory where Etherpad lite stores its data.
+              '';
+            };
+            socketsDir = lib.mkOption {
+              type = lib.types.path;
+              default = "/run/${name}";
+              description = ''
+                The directory where Etherpad lite stores its sockets.
+              '';
+            };
+            configFile = lib.mkOption {
+              type = lib.types.path;
+              description = ''
+                The config file path for Etherpad lite.
+                '';
+            };
+            sessionKeyFile = lib.mkOption {
+              type = lib.types.path;
+              description = ''
+                The Session key file path for Etherpad lite.
+                '';
+            };
+            apiKeyFile = lib.mkOption {
+              type = lib.types.path;
+              description = ''
+                The API key file path for Etherpad lite.
+                '';
+            };
+            package = lib.mkOption {
+              type = lib.types.package;
+              default = pkgs.etherpad-lite;
+              description = ''
+                Etherpad lite package to use.
+                '';
+              example = lib.literalExample ''
+                pkgs.webapps.etherpad-lite.withModules (p: [ p.ep_align ]);
+              '';
+            };
+            modules = lib.mkOption {
+              type = lib.types.listOf lib.types.package;
+              default = [];
+              description = ''
+                Etherpad lite modules to use.
+                DEPRECATED: use package directly
+                '';
+            };
+            # Output variables
+            workdir = lib.mkOption {
+              type = lib.types.package;
+              default = cfg.package.withModules (_: cfg.modules);
+              description = ''
+              Adjusted Etherpad lite package with plugins
+              '';
+              readOnly = true;
+            };
+            systemdStateDirectory = lib.mkOption {
+              type = lib.types.str;
+              # Use ReadWritePaths= instead if varDir is outside of /var/lib
+              default = assert lib.strings.hasPrefix "/var/lib/" cfg.dataDir;
+                lib.strings.removePrefix "/var/lib/" cfg.dataDir;
+              description = ''
+              Adjusted Etherpad lite data directory for systemd
+              '';
+              readOnly = true;
+            };
+            systemdRuntimeDirectory = lib.mkOption {
+              type = lib.types.str;
+              # Use ReadWritePaths= instead if socketsDir is outside of /run
+              default = assert lib.strings.hasPrefix "/run/" cfg.socketsDir;
+                lib.strings.removePrefix "/run/" cfg.socketsDir;
+              description = ''
+              Adjusted Etherpad lite sockets directory for systemd
+              '';
+              readOnly = true;
+            };
+            sockets = lib.mkOption {
+              type = lib.types.attrsOf lib.types.path;
+              default = {
+                node  = "${cfg.socketsDir}/etherpad-lite.sock";
+              };
+              readOnly = true;
+              description = ''
+                Etherpad lite sockets
+                '';
+            };
+          };
+
+          config = lib.mkIf cfg.enable {
+            nixpkgs.overlays = [ self.overlay ];
+            systemd.services.etherpad-lite-cleanup = {
+              description = "Etherpad-lite cleanup old mypads";
+              after = [ "network.target" "postgresql.service" ];
+              wants = [ "postgresql.service" ];
+
+              environment.NODE_ENV = "production";
+              environment.HOME = cfg.workdir;
+
+              path = [ cfg.workdir.nodejs ];
+
+              script = ''
+                exec ${cfg.workdir.nodejs}/bin/node ${cfg.workdir}/node_modules/ep_mypads/scripts/mypads-jobqueue-minion.js \
+                  --settings ${cfg.configFile} \
+                  --oneshot
+              '';
+
+              serviceConfig = {
+                DynamicUser = true;
+                User = cfg.user;
+                Group = cfg.group;
+                WorkingDirectory = "%T";
+                PrivateTmp = true;
+                NoNewPrivileges = true;
+                PrivateDevices = true;
+                ProtectHome = true;
+                ProtectControlGroups = true;
+                ProtectKernelModules = true;
+                Type = "oneshot";
+              };
+            };
+            systemd.services.etherpad-lite = {
+              description = "Etherpad-lite";
+              wantedBy = [ "multi-user.target" ];
+              after = [ "network.target" "postgresql.service" ];
+              wants = [ "postgresql.service" ];
+
+              environment.NODE_ENV = "production";
+              environment.HOME = cfg.workdir;
+
+              path = [ cfg.workdir.nodejs ];
+
+              script = ''
+                exec ${cfg.workdir.nodejs}/bin/node ${cfg.workdir}/src/node/server.js \
+                  --sessionkey ${cfg.sessionKeyFile} \
+                  --apikey ${cfg.apiKeyFile} \
+                  --settings ${cfg.configFile}
+              '';
+
+              postStart = ''
+                while [ ! -S ${cfg.sockets.node} ]; do
+                  sleep 0.5
+                done
+                chmod a+w ${cfg.sockets.node}
+                '';
+              serviceConfig = {
+                DynamicUser = true;
+                User = cfg.user;
+                Group = cfg.group;
+                WorkingDirectory = cfg.workdir;
+                PrivateTmp = true;
+                NoNewPrivileges = true;
+                PrivateDevices = true;
+                ProtectHome = true;
+                ProtectControlGroups = true;
+                ProtectKernelModules = true;
+                Restart = "always";
+                Type = "simple";
+                TimeoutSec = 60;
+                RuntimeDirectory = cfg.systemdRuntimeDirectory;
+                StateDirectory= cfg.systemdStateDirectory;
+                ExecStartPre = [
+                  "+${pkgs.coreutils}/bin/install -d -m 0755 -o ${cfg.user} -g ${cfg.group} ${cfg.dataDir}/var ${cfg.dataDir}/ep_initialized"
+                  "+${pkgs.coreutils}/bin/chown -R ${cfg.user}:${cfg.group} ${cfg.dataDir} ${cfg.configFile} ${cfg.sessionKeyFile} ${cfg.apiKeyFile}"
+                ];
+              };
+            };
+
+          };
+        };
+      };
+}
+
+