fix: add trusted proxy to mealie so Gunicorn trusts X-Forwarded-* headers, fix kanidm mealie groups

hosts/ward/guests/kanidm.nix

@@ -169,14 +169,8 @@ in
           "openid"
           "email"
           "profile"
+          "groups"
         ];
-        claimMaps.groups = {
-          joinType = "array";
-          valuesByGroup = {
-            "mealie.access" = [ "user" ];
-            "mealie.admins" = [ "admin" ];
-          };
-        };
       };
 
       # Paperless

hosts/ward/guests/mealie.nix

@@ -52,24 +52,24 @@ in
   services.mealie = {
     enable = true;
     settings = rec {
-      ALLOW_SIGNUP = "false";
       BASE_URL = "https://${mealieDomain}";
       TZ = config.time.timeZone;
       TOKEN_TIME = 87600; # 10 years session time - this is only internal so who cares
 
+      ALLOW_SIGNUP = "false";
       OIDC_AUTH_ENABLED = "true";
       OIDC_SIGNUP_ENABLED = "true";
       OIDC_AUTO_REDIRECT = "true";
       OIDC_REMEMBER_ME = "true";
 
       OIDC_CLIENT_ID = "mealie";
-      OIDC_SIGNING_ALGORITHM = "ES256";
       OIDC_USER_CLAIM = "preferred_username";
       OIDC_PROVIDER_NAME = "Kanidm";
       OIDC_CONFIGURATION_URL = "https://${globals.services.kanidm.domain}/oauth2/openid/${OIDC_CLIENT_ID}/.well-known/openid-configuration";
-      OIDC_USER_GROUP = "user";
-      OIDC_ADMIN_GROUP = "admin";
+      OIDC_USER_GROUP = "mealie.access@${globals.services.kanidm.domain}";
+      OIDC_ADMIN_GROUP = "mealie.admins@${globals.services.kanidm.domain}";
     };
+    trustedProxies = [ nodes.ward-web-proxy.config.wireguard.proxy-home.ipv4 ];
     credentialsFile = config.age.secrets.oauth2-client-secret.path;
   };
 

modules/default.nix

@@ -1,4 +1,7 @@
 {
+  disabledModules = [
+    "services/web-apps/mealie.nix"
+  ];
   imports = [
     ./acme-wildcard.nix
     ./backups.nix
@@ -6,6 +9,7 @@
     ./distributed-config.nix
     ./ente.nix
     ./globals.nix
+    ./mealie.nix
     ./meta.nix
     ./nginx-upstream-monitoring.nix
     ./oauth2-proxy.nix

modules/mealie.nix

@@ -0,0 +1,128 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  cfg = config.services.mealie;
+  pkg = cfg.package;
+in
+{
+  options.services.mealie = {
+    enable = lib.mkEnableOption "Mealie, a recipe manager and meal planner";
+
+    package = lib.mkPackageOption pkgs "mealie" { };
+
+    listenAddress = lib.mkOption {
+      type = lib.types.str;
+      default = "0.0.0.0";
+      description = "Address on which the service should listen.";
+    };
+
+    port = lib.mkOption {
+      type = lib.types.port;
+      default = 9000;
+      description = "Port on which to serve the Mealie service.";
+    };
+
+    settings = lib.mkOption {
+      type = with lib.types; attrsOf anything;
+      default = { };
+      description = ''
+        Configuration of the Mealie service.
+
+        See [the mealie documentation](https://nightly.mealie.io/documentation/getting-started/installation/backend-config/) for available options and default values.
+      '';
+      example = {
+        ALLOW_SIGNUP = "false";
+      };
+    };
+
+    extraOptions = lib.mkOption {
+      type = lib.types.listOf lib.types.str;
+      default = [ ];
+      example = [ "--forwarded-allow-ips=10.44.0.11" ];
+      description = ''
+        Specifies extra command line arguments to pass to mealie (Gunicorn).
+      '';
+    };
+
+    credentialsFile = lib.mkOption {
+      type = with lib.types; nullOr path;
+      default = null;
+      example = "/run/secrets/mealie-credentials.env";
+      description = ''
+        File containing credentials used in mealie such as {env}`POSTGRES_PASSWORD`
+        or sensitive LDAP options.
+
+        Expects the format of an `EnvironmentFile=`, as described by {manpage}`systemd.exec(5)`.
+      '';
+    };
+
+    database = {
+      createLocally = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = ''
+          Configure local PostgreSQL database server for Mealie.
+        '';
+      };
+    };
+
+    trustedProxies = lib.mkOption {
+      type = lib.types.listOf lib.types.str;
+      default = [ ];
+      description = "A list of trusted proxies. You must set this when you are using OIDC behind https, otherwise the generated redirect url will have the wrong url scheme.";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    systemd.services.mealie = {
+      description = "Mealie, a self hosted recipe manager and meal planner";
+
+      after = [ "network-online.target" ] ++ lib.optional cfg.database.createLocally "postgresql.service";
+      requires = lib.optional cfg.database.createLocally "postgresql.service";
+      wants = [ "network-online.target" ];
+      wantedBy = [ "multi-user.target" ];
+
+      environment = {
+        PRODUCTION = "true";
+        API_PORT = toString cfg.port;
+        BASE_URL = "http://localhost:${toString cfg.port}";
+        DATA_DIR = "/var/lib/mealie";
+        NLTK_DATA = pkgs.nltk-data.averaged_perceptron_tagger_eng;
+      } // (builtins.mapAttrs (_: toString) cfg.settings);
+
+      serviceConfig = {
+        DynamicUser = true;
+        User = "mealie";
+        ExecStartPre = "${pkg}/libexec/init_db";
+        ExecStart = "${lib.getExe pkg} -b ${cfg.listenAddress}:${builtins.toString cfg.port} ${lib.escapeShellArgs cfg.extraOptions}";
+        EnvironmentFile = lib.mkIf (cfg.credentialsFile != null) cfg.credentialsFile;
+        StateDirectory = "mealie";
+        StandardOutput = "journal";
+      };
+    };
+
+    services.mealie.settings = lib.mkIf cfg.database.createLocally {
+      DB_ENGINE = "postgres";
+      POSTGRES_URL_OVERRIDE = "postgresql://mealie:@/mealie?host=/run/postgresql";
+    };
+
+    services.mealie.extraOptions = lib.mkIf (cfg.trustedProxies != [ ]) [
+      "--forwarded-allow-ips=${lib.concatStringsSep "," cfg.trustedProxies}"
+    ];
+
+    services.postgresql = lib.mkIf cfg.database.createLocally {
+      enable = true;
+      ensureDatabases = [ "mealie" ];
+      ensureUsers = [
+        {
+          name = "mealie";
+          ensureDBOwnership = true;
+        }
+      ];
+    };
+  };
+}