hosts split in folders

hosts/mail/default.nix

@@ -0,0 +1,201 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  generatedAliases = pkgs.writeText "generated-aliases" (
+    lib.concatStringsSep "\n" (
+      lib.mapCartesianProduct
+        ({ aliases, domain }: "${aliases}@${domain}  root@test.htw.stura-dresden.de")
+        {
+          aliases = [
+            "abuse"
+            "hostmaster"
+            "noreply"
+            "postmaster"
+            "webmaster"
+          ];
+          domain = config.mailserver.domains;
+        }
+    )
+  );
+
+in
+{
+  imports = [
+    ./hardware-configuration.nix
+  ];
+
+  security.pam.loginLimits = [
+    {
+      domain = "*";
+      type = "soft";
+      item = "nofile";
+      value = "8192";
+    }
+  ];
+  # nix.settings.trusted-users = [ "administration" ];
+  # nix.settings.download-buffer-size = 6710886400;
+  # boot.loader.grub.enable = true;
+  # boot.loader.grub.device = "/dev/sda"; # or "nodev" for efi only
+  # boot.loader.grub.enable = true;
+  # boot.loader.grub.efiSupport = true;
+  # boot.loader.grub.efiInstallAsRemovable = true;
+
+  networking.hostName = "mail";
+  networking.extraHosts = ''
+    127.0.0.1 auth.test.htw.stura-dresden.de
+  '';
+  networking.domain = "test.htw.stura-dresden.de";
+  networking.interfaces.ens18.ipv4.addresses = [
+    {
+      address = "167.235.225.23";
+      prefixLength = 32;
+    }
+  ];
+
+  networking.interfaces.ens18.ipv6.addresses = [
+    {
+      address = "2a01:4f8:c012:6bd7::1";
+      prefixLength = 32;
+    }
+  ];
+  networking.defaultGateway.address = "172.31.1.1";
+  networking.nameservers = [
+    "9.9.9.9"
+    "1.1.1.1"
+  ];
+
+  services.nginx.virtualHosts."lists.${config.networking.domain}" = {
+    enableACME = true;
+    forceSSL = true;
+    # locations."/" = {
+    #   proxyPass = "http://127.0.0.1:18507";
+    # };
+  };
+  services.mailman = {
+    enable = true;
+    hyperkitty = {
+      enable = true;
+    };
+    serve.enable = true;
+    webHosts = [
+      "lists.${config.networking.domain}"
+    ];
+  };
+
+  services.mailman.siteOwner = "mailman@${config.networking.domain}";
+  mailserver = {
+    enable = true;
+    fqdn = "mail.${config.networking.domain}";
+    domains = [
+      "${config.networking.domain}"
+      "lists.${config.networking.domain}"
+    ];
+    ldap = {
+      enable = true;
+      bind = {
+        dn = "cn=dovecot,ou=users,DC=test,DC=htw,DC=stura-dresden,DC=de";
+        passwordFile = "/var/lib/dovecot_ldap_passwd";
+      };
+      dovecot = {
+        userFilter = "(&(objectClass=posixAccount)(mail=%u))";
+        passFilter = "(&(objectClass=posixAccount)(mail=%u))";
+        userAttrs = "cn";
+      };
+      postfix = {
+        filter = "(|(&(objectClass=posixAccount)(mail=%s))(&(objectClass=posixAccount)(cn=%s)))";
+        mailAttribute = "mail";
+        uidAttribute = "cn";
+      };
+      searchBase = "DC=test,DC=htw,DC=stura-dresden,DC=de";
+      uris = [
+        "ldap://auth.test.htw.stura-dresden.de:3389"
+      ];
+    };
+
+    certificateScheme = "acme-nginx";
+    enableImap = true;
+    enableImapSsl = true;
+    enableManageSieve = true;
+    enableSubmission = true;
+    enableSubmissionSsl = true;
+    extraVirtualAliases = { };
+    lmtpSaveToDetailMailbox = "no"; # DOS potential
+    mailboxes = {
+      Drafts = {
+        auto = "subscribe";
+        specialUse = "Drafts";
+      };
+      Sent = {
+        auto = "subscribe";
+        specialUse = "Sent";
+      };
+      Spam = {
+        auto = "subscribe";
+        specialUse = "Junk";
+      };
+      Trash = {
+        auto = "subscribe";
+        specialUse = "Trash";
+      };
+    };
+    maxConnectionsPerUser = 10;
+    messageSizeLimit = 10 * 1000 * 1024; # 10 MiB
+
+  };
+
+  # services.dovecot2.mailLocation = lib.mkForce "maildir:/var/vmail/%n";
+  services.postfix =
+    let
+      submissionOptions = {
+        # hash:/etc/postfix/virtual,
+        smtpd_sender_login_maps = lib.mkForce "ldap:/run/postfix/ldap-sender-login-map.cf";
+        smtpd_client_restrictions = "permit_sasl_authenticated,reject";
+      };
+    in
+    {
+      masterConfig = {
+        submission = {
+          args = [ "-v" ];
+        };
+        submissions = {
+          args = [ "-v" ];
+        };
+      };
+      config = {
+        unknown_local_recipient_reject_code = 550;
+        relay_domains = [
+          "hash:/var/lib/mailman/data/postfix_domains"
+        ];
+        transport_maps = [
+          "hash:/var/lib/mailman/data/postfix_lmtp"
+        ];
+        local_recipient_maps = [
+          "hash:/var/lib/mailman/data/postfix_lmtp"
+        ];
+      };
+      # mapFiles = {
+      #   "valias" = lib.mkForce "/var/lib/postfix/valias";
+      #   "virtual" = lib.mkForce "/var/lib/postfix/virtual";
+      # };
+      submissionOptions = submissionOptions;
+      submissionsOptions = submissionOptions;
+    };
+
+  # virtualisation.docker.enable = true;
+  security.acme.acceptTerms = true;
+  security.acme.defaults.email = "cert@stura.htw-dresden.de";
+
+  networking.firewall.allowedTCPPorts = [
+    25
+    80
+    443
+    597
+  ];
+
+  system.stateVersion = "24.11";
+
+}