services: mealie: use postgres

services/mealie.nix

@@ -37,9 +37,48 @@ in {
 
       settings = {
         ALLOW_SIGNUP = "false";
+        BASE_URL = "https://mealie.${domain}";
+        TZ = config.time.timeZone;
+
+        # Use PostgreSQL
+        DB_ENGINE = "postgres";
+
+        # Settings for Mealie 1.2
+        POSTGRES_USER = "mealie";
+        POSTGRES_PASSWORD = "";
+        POSTGRES_SERVER = "/run/postgresql";
+        # Pydantic and/or mealie doesn't handle the URI correctly, hijack it
+        # with query parameters...
+        POSTGRES_DB = "mealie?host=/run/postgresql&dbname=mealie";
+
+        # Settings for Mealie 1.7+, when that gets into NixOS stable
+        # POSTGRES_URL_OVERRIDE = "postgresql://mealie:@/mealie?host=/run/postgresql";
+      };
+    };
+
+    systemd.services = {
+      mealie = {
+        after = [ "postgresql.service" ];
+        requires = [ "postgresql.service" ];
       };
     };
 
+    # Set-up database
+    services.postgresql = {
+      enable = true;
+      ensureDatabases = [ "mealie" ];
+      ensureUsers = [
+        {
+          name = "mealie";
+          ensureDBOwnership = true;
+        }
+      ];
+    };
+
+    services.postgresqlBackup = {
+      databases = ["mealie"];
+    };
+
     services.nginx.virtualHosts."mealie.${domain}" = {
       forceSSL = true;
       useACMEHost = fqdn;