Add pushing to hrz allowlist

.sops.yaml

@@ -4,6 +4,7 @@ keys:
 
   - &nyarlathotep age1s99d0vlj5qlm287n98jratql5fypvjrxxal0k5jl2aw9dcc8kyvqw5yyt4
   - &bragi age1lqvgpmlemyg9095ujck64u59ma29656zs7a4yxgz4s6u5cld2ccss69jwe
+  - &lobon age12nz7dtc0m5wasxm4r9crtkgwnzvauyfp0xh0n8z8jld0arn9ea9qe0agvn
 
 creation_rules:
   - path_regex: nixos/machines/nyarlathotep/.*
@@ -18,6 +19,12 @@ creation_rules:
         - *nerf
         - *gonne
         - *bragi
+  - path_regex: nixos/machines/lobon/.*
+    key_groups:
+      - age:
+        - *nerf
+        - *gonne
+        - *lobon
   # this is the catchall clause if nothing above machtes. Encrypt to users but not
   # to machines
   - key_groups:

nixos/machines/lobon/allowlistPass.yaml

@@ -0,0 +1,39 @@
+allowlistPass: ENC[AES256_GCM,data:bb9jXSvWeDnZqqiY/IarwA==,iv:qeFAYvXYdh2uEleg8kpCd77u4PTbwM8ydEkbMhyPz1I=,tag:1/eysyZb2mJ0mYHXIrpihw==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1rasjnr2tlv9y70sj0z0hwpgpxdc974wzg5umtx2pnc6z0p05u3js6r8sln
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSAySVhjV0xXdGE2am85RVJh
+            NXJLRy92blkzeENuWHh3QSsxNHBXcUpibGxnCnVHUEVoYVgxbk5WSmxQRXNzMC9i
+            Y1g4MUFrNEVjVjJWM0xhU0JzTzNZTk0KLS0tIFIrdmhrbXFHb2VaQ1p2dDJMMmlR
+            Um5CcGlZanBBRzJKOVNZeWVPTmsrcVUK905uViHD7uZMVQHPfFraIHXYTHaT+ERl
+            ZvyRDdjjRCyxu0qcIpYVpPAmfGCo0++bXSRUX8rCp48YN20MbPNjgA==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1xv5rfxkxg9jyqx5jg2j82cxv7w7ep4a3795p4yl5fuqf38f3m3eqfnefju
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBLNkNpN2RlcHBuOUxoYmkx
+            QzdOM1E0cFBSc1I0NzVRbmhiUXhjM3dQOWhnCmlOQzJ3b2Q5NFJkb2haMDNGSFBv
+            SkdySWtRUzhic1FNeXhiUFBPRVNoWmcKLS0tIGNaVW5xUmxWOEtXVkRqVEJJSEVv
+            NFBWREFQbnFXclhiNW51M0ZsOEMxdnMKdOPVRbD42q7MRw1CX1M30Xdil7VFLDVD
+            G8j4sjxlDkcwQK/3WjZdBLXAzJcrvAp0okGzw8lymC812CXTSEfmxw==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age12nz7dtc0m5wasxm4r9crtkgwnzvauyfp0xh0n8z8jld0arn9ea9qe0agvn
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBKVVN2THloaU1pVnhtWDhm
+            TWpPaHNLSXlud0RLU3ovS0s4REtUTzQwMHhZClF5OFZQVHB2VG9BeThSYzVSMUFJ
+            VDNkT0Y1Y3RUemkwSmxlM0drUlNDR1UKLS0tIDYrcVhXMWJxR2dhcXhjdTQ3MjV1
+            Y3lWbHdLOGRGamhRY0xoRnVJczc2aFUKWWAflRwoszNw5bEDTSaVI65FtQve/HrC
+            uY1JvYwXLq4m4hu76dyrplDpzb8ant/YAUXpG6F4U7nn9GiLBaoyUQ==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2024-03-31T14:34:54Z"
+    mac: ENC[AES256_GCM,data:sjWiO96NcFUT4L9mdBuQwt6Zl5cS16o73zes30SYJxzM1R3ZBIg9oOmhXxY9BC3yKjEb6bVuemj/bnnopSR/m3RPH7xfaYCBfz97Zgc4SGtoqLIra5OUCRpWnKSsD6Nf09Qss5Pbla9EIrI0kQt7fpf4iKLF7VJwrQryslnvfcM=,iv:ilnbLK6sttweEyqszVHxVnjbTq8jF5ZTO24OEIPMprE=,tag:3XgAlXMl/RIaUfkVwHJeBQ==,type:str]
+    pgp: []
+    unencrypted_suffix: _unencrypted
+    version: 3.8.1

nixos/machines/lobon/configuration.nix

@@ -0,0 +1,20 @@
+{
+  imports = [
+    ./hardware-configuration.nix
+    ../../modules/mailman.nix
+    ../../roles
+    ../../roles/vm.nix
+    ./network.nix
+  ];
+
+  # System configuration here
+
+  services.mathebau-mailman = {
+    enable = true;
+    hostName = "lists.mathebau.de";
+    siteOwner = "root@mathebau.de";
+  };
+
+  networking.hostName = "lobon";
+  system.stateVersion = "23.11";
+}

nixos/machines/lobon/hardware-configuration.nix

@@ -0,0 +1,30 @@
+{
+  lib,
+  pkgs,
+  ...
+}: {
+  imports = [];
+
+  fileSystems."/" = {
+    device = "root";
+    fsType = "tmpfs";
+    options = ["size=512M" "mode=755"];
+  };
+  fileSystems."/persist" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "btrfs";
+    options = ["subvol=persist"];
+    neededForBoot = true;
+  };
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/boot";
+    fsType = "ext4";
+  };
+  fileSystems."/nix" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "btrfs";
+    options = ["subvol=nix"];
+  };
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

nixos/machines/lobon/network.nix

@@ -0,0 +1,16 @@
+# We sohuld put that config somewhere in roles and give it a parameter or something,
+# everyone gets the same nameserver and the same prefixLength and address vs defaultGateway alsways
+# depend on the same thing
+{
+  imports = [];
+  networking = {
+    interfaces.enX0.ipv4.addresses = [
+      {
+        address = "192.168.0.22";
+        prefixLength = 16;
+      }
+    ];
+    defaultGateway = "192.168.0.149";
+    nameservers = ["130.83.2.22" "130.83.56.60" "130.83.22.60" "130.82.22.63"];
+  };
+}

nixos/modules/mailman.nix

@@ -0,0 +1,105 @@
+# Adapted and simplified from https://nixos.wiki/wiki/Mailman
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit
+    (lib)
+    mkIf
+    mkEnableOption
+    mkOption
+    ;
+  inherit (lib.types) str;
+  cfg = config.services.mathebau-mailman;
+in {
+  options.services.mathebau-mailman = {
+    enable = mkEnableOption "mathebau mailman service";
+    hostName = mkOption {
+      type = str;
+    };
+    siteOwner = mkOption {
+      type = str;
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services = {
+      postfix = {
+        enable = true;
+        relayDomains = ["hash:/var/lib/mailman/data/postfix_domains"];
+        sslCert = config.security.acme.certs.${cfg.hostName}.directory + "/full.pem";
+        sslKey = config.security.acme.certs.${cfg.hostName}.directory + "/key.pem";
+        config = {
+          transport_maps = ["hash:/var/lib/mailman/data/postfix_lmtp"];
+          local_recipient_maps = ["hash:/var/lib/mailman/data/postfix_lmtp"];
+          proxy_interfaces = "130.83.2.184";
+          smtputf8_enable = "no"; # HRZ does not know SMTPUTF8
+        };
+        relayHost = "mailout.hrz.tu-darmstadt.de"; # Relay to HRZ (see https://www.hrz.tu-darmstadt.de/services/it_services/email_infrastruktur/index.de.jsp)
+      };
+      mailman = {
+        enable = true;
+        inherit (cfg) siteOwner;
+        hyperkitty.enable = true;
+        webHosts = [cfg.hostName];
+        serve.enable = true; #
+        # Don't include confirmation tokens in reply addresses, because we would need to send them to HRZ otherwise.
+        settings.mta.verp_confirmations = "no";
+      };
+      nginx.virtualHosts.${cfg.hostName} = {
+        enableACME = true; # Get certificates (primarily for postfix)
+        forceSSL = false; # Don't use HTTPS behind the proxy
+      };
+    };
+
+    environment.persistence.${config.impermanence.name} = {
+      directories = [
+        "/var/lib/acme" # Persist TLS keys and account
+        "/var/lib/mailman"
+        "/var/lib/mailman-web"
+      ];
+    };
+
+    security.acme.defaults.email = cfg.siteOwner;
+    security.acme.acceptTerms = true;
+
+    networking.firewall.allowedTCPPorts = [25 80 443];
+
+    # Update HRZ allowlist
+    # For account details see https://www-cgi.hrz.tu-darmstadt.de/mail/
+    # will stop working if no valid TUIDs are associated to our domain.
+    systemd.timers."mailAllowlist" = {
+      wantedBy = ["timers.target"];
+      timerConfig = {
+        OnBootSec = "5m"; # Run every 5 minutes
+        OnUnitActiveSec = "5m";
+        RandomizedDelaySec = "2m"; # prevent overload on regular intervals
+        Unit = "mailAllowlist.service";
+      };
+    };
+    systemd.services."mailAllowlist" = {
+      description = "Allowlist update: Post the mail addresses used by mailman to the HRZ allowllist";
+      script = ''
+        # Get the mail addresses' local-part
+        cut -d '@' -f 1 /var/lib/mailman/data/postfix_lmtp | grep -v '#' | grep "\S" > /tmp/addresses
+        # Post local-parts to HRZ
+        ${pkgs.curl}/bin/curl https://www-cgi.hrz.tu-darmstadt.de/mail/whitelist-update.php -F emaildomain=lists.mathebau.de -F password=$(cat /run/secrets/allowlistPass) -F emailliste=@/tmp/addresses -F meldungen=voll
+        # Cleanup
+        rm /tmp/addresses
+      '';
+      serviceConfig = {
+        Type = "oneshot";
+        User = "mailman";
+        PrivateTmp = true;
+      };
+    };
+    sops.secrets.allowlistPass = {
+      sopsFile = ../machines/lobon/allowlistPass.yaml;
+      owner = "mailman";
+      group = "mailman";
+      mode = "0400";
+    };
+  };
+}