Secrets, netinstall, ldap and stuff

2 years ago · b418fce1bf
26 changed files with 631 additions and 174 deletions
--- a/.envrc
+++ b/.envrc
@ -2,3 +2,5 @@ use flake

 watch_file "flake.nix"
 watch_file "flake.lock"
+watch_file "machines.nix"
+watch_file "sops.nix"
--- a/.gitignore
+++ b/.gitignore
@ -1,3 +1,6 @@
 /.pre-commit-config.yaml
 .gcroots
 .direnv
+
+# nixago: ignore-linked-files
+/.sops.yaml
--- a/.sops.yaml
+++ b/.sops.yaml
@ -1,13 +0,0 @@
-keys:
-  - &admin_fooker 3237CA7A1744B4DCE96B409FB4C3BF012D9B26BE
-  - &server_manager age1ys5pskgkjsgqfy2lr0afcnl2edry8jmryhymkwtked2se74e9g4s23gunn
-  - &server_node-00 age1q3tqh4w7yeae4xs0cxevtp5tn4gm8xthc39fsht2kv9rq7xm4q3qxqt9sh
-
-creation_rules:
- key_groups:
-  - pgp:
-    - *admin_fooker
-    age:
-    - *server_manager
-    - *server_node-00
-  path_regex: ^(secrets\.yaml|secrets/.+)$
--- a/deployment.nix
+++ b/deployment.nix
@ -0,0 +1,41 @@
+{ nixpkgs, disko, sops, gather, ... }@inputs:
+
+let
+  deploymentPkgs = import nixpkgs {
+    localSystem.system = "x86_64-linux";
+  };
+
+  machines = deploymentPkgs.callPackage ./machines.nix { };
+
+in
+with deploymentPkgs.lib; let
+
+  mkMachine = machine: { lib, ... }: {
+    imports = [
+      ./shared
+      ./modules
+
+      (import /${machine.path} machine.opts)
+
+      disko.nixosModules.disko
+      sops.nixosModules.sops
+      gather.nixosModules.gather
+    ];
+
+    _module.args = {
+      inherit machine;
+    };
+  };
+
+in
+{
+  meta = {
+    nixpkgs = deploymentPkgs;
+
+    specialArgs = {
+      inherit inputs;
+    };
+  };
+} // (listToAttrs (map
+  (machine: nameValuePair machine.name (mkMachine machine))
+  machines))
--- a/flake.lock
+++ b/flake.lock
@ -30,11 +30,11 @@
        ]
      },
      "locked": {
-        "lastModified": 1685450011,
-        "narHash": "sha256-/Az50GoWePZHL+Pkxy2ZuKW9zwIk+oVdzkR9xWomnpo=",
+        "lastModified": 1687747614,
+        "narHash": "sha256-KXspKgtdO2YRL12Jv0sUgkwOwHrAFwdIG/90pDx8Ydg=",
        "owner": "nix-community",
        "repo": "disko",
-        "rev": "0d270372b21818eba342954220c1a30a7bdaba19",
+        "rev": "fef67a1ddc293b595d62a660f57deabbcb70ff95",
        "type": "github"
      },
      "original": {
@ -201,6 +201,22 @@
        "type": "github"
      }
    },
+    "ldap-sync": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1688052624,
+        "narHash": "sha256-tQ0C/0zMgOYTSxzIy9koED4jzGNZygknrsC9Q6RtaJE=",
+        "ref": "refs/heads/main",
+        "rev": "69ce1d4f1a41ee313f5cb484a0bfecad9a545694",
+        "revCount": 11,
+        "type": "git",
+        "url": "https://gogs.informatik.hs-fulda.de/fooker/ldap-sync.git"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://gogs.informatik.hs-fulda.de/fooker/ldap-sync.git"
+      }
+    },
    "nixago": {
      "inputs": {
        "flake-utils": [
@ -384,6 +400,7 @@
        "colmena": "colmena",
        "disko": "disko",
        "gather": "gather",
+        "ldap-sync": "ldap-sync",
        "nixago": "nixago",
        "nixpkgs": "nixpkgs",
        "pre-commit-hooks": "pre-commit-hooks",
--- a/flake.nix
+++ b/flake.nix
@ -60,16 +60,26 @@
      owner = "fooker";
      repo = "gather.nix";
    };
+
+    ldap-sync = {
+      type = "git";
+      url = "https://gogs.informatik.hs-fulda.de/fooker/ldap-sync.git";
+      flake = false;
+    };
  };

-  outputs = { nixpkgs, utils, ... }@inputs: {
-    colmena = import ./machines.nix inputs;
+  outputs = { nixpkgs, utils, disko, ... }@inputs: {
+    colmena = import ./deployment.nix inputs;

    devShell = utils.lib.eachSystemMap utils.lib.allSystems (system:
      let
        pkgs = nixpkgs.legacyPackages.${system};

-        colmena = inputs.colmena.defaultPackage.${system};
+        colmena = inputs.colmena.defaultPackage.${system}.overrideAttrs (final: prev: {
+          patches = (prev.patches or [ ]) ++ [
+            ./patches/colmena-disable-ssh-master.patch
+          ];
+        });

        pre-commit-hooks = inputs.pre-commit-hooks.lib.${system}.run {
          src = ./.;
@ -80,6 +90,12 @@
          };
        };

+        sops-hooks = inputs.nixago.lib.${system}.make {
+          data = (pkgs.callPackage ./sops.nix { }).config;
+          output = ".sops.yaml";
+          format = "yaml";
+        };
+
        gather = pkgs.writeShellScript "gather" ''
          ROOT=${toString ./.}

@ -108,6 +124,7 @@

        shellHook = ''
          ${pre-commit-hooks.shellHook}
+          ${sops-hooks.shellHook}
        '';
      });
  };
--- a/gathered/node-00/ssh_host_ed25519_key.pub
+++ b/gathered/node-00/ssh_host_ed25519_key.pub
@ -1 +1 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIcyF+SJiS1f1j2Waa0Af2Mx4zxPHl6J3u9gaDMhE9Yv root@nixos
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPjQy/rUZUmLjTAP2+IdkVzGS/VNLqn3bvRpNN8ouS04 root@node-00
--- a/machines.nix
+++ b/machines.nix
@ -1,48 +1,33 @@
-{ nixpkgs, disko, sops, gather, ... }@inputs:
+{ lib, ... }:

-let
-  deploymentPkgs = import nixpkgs {
-    localSystem.system = "x86_64-linux";
-  };
+with lib;

+let
  nrNodes = 1;

-in
-with deploymentPkgs.lib; let
-
-  mkMachine = type: opts: { lib, ... }:
-    let
-      machine = import ./machines/${type} opts;
-    in
-    {
-      imports = [
-        ./shared
-        ./modules
-
-        machine
-
-        disko.nixosModules.disko
-        sops.nixosModules.sops
-        gather.nixosModules.gather
-      ];
-    };
-
-  machines = {
-    manager = mkMachine "manager" { };
-  } // (listToAttrs (genList
-    (i: nameValuePair
-      "node-${fixedWidthNumber 2 i}"
-      (mkMachine "node" { id = i; })
-    )
-    nrNodes));
+  mkMachine = { name, type, opts ? { } }: rec {
+    inherit name type opts;

-in
-{
-  meta = {
-    nixpkgs = deploymentPkgs;
+    path = ./machines/${type};

-    specialArgs = {
-      inherit inputs;
-    };
+    gather = ./gathered/${name};
  };
-} // machines
+
+  manager = mkMachine {
+    name = "manager";
+    type = "manager";
+  };
+
+  nodes = genList
+    (i: mkMachine {
+      name = "node-${fixedWidthNumber 2 i}";
+      type = "node";
+      opts = { id = i; };
+    })
+    nrNodes;
+
+in
+concatLists [
+  [ manager ]
+  nodes
+]
--- a/machines/manager/beegfs.nix
+++ b/machines/manager/beegfs.nix
@ -1,4 +1,4 @@
-{ pkgs, config, lib, ... }: 
+{ pkgs, config, lib, ... }:

 with lib;

@ -25,5 +25,7 @@ in
    storage.enable = true;
  };

-  sops.secrets."beegfs/connection" = {};
-}
+  sops.secrets."beegfs/connection" = {
+    sopsFile = ../../shared/secrets.yaml;
+  };
+}
--- a/machines/manager/disk.nix
+++ b/machines/manager/disk.nix
@ -8,7 +8,6 @@
        format = "gpt";
        partitions = [
          {
-            index = 1;
            name = "root";
            start = "100MiB";
            end = "-4GB";
@ -22,7 +21,6 @@
            };
          }
          {
-            index = 2;
            name = "swap";
            start = "-4G";
            end = "100%";
@ -34,7 +32,6 @@
            };
          }
          {
-            index = 3;
            name = "ESP";
            start = "1MiB";
            end = "100MiB";
--- a/machines/manager/ldap.nix
+++ b/machines/manager/ldap.nix
@ -1,16 +1,68 @@
-{ lib, config, ... }:
+{ pkgs, lib, config, inputs, mkCert, ... }:

 with lib;

 let
+  ldap-sync =
+    let
+      wrapped = pkgs.callPackage inputs.ldap-sync { };
+      env = pkgs.runCommand "ldap-sync-env" { } ''
+        mkdir -p $out
+        ln -s ${config.sops.secrets."ldap/sync/config".path} $out/ldap-sync.properties
+      '';
+    in
+    pkgs.runCommand "ldap-sync-wrapper"
+      {
+        nativeBuildInputs = [ pkgs.makeWrapper ];
+      } ''
+      mkdir -p $out/bin
+      makeWrapper "${wrapped}/bin/ldap-sync" $out/bin/ldap-sync \
+        --chdir "${env}"
+    '';
+
  baseDN = concatMapStringsSep ","
    (part: "dc=${part}")
    (splitString "." config.networking.domain);
+
+  cert = mkCert "ldap.${config.networking.domain}";
+
+  cyrus_sasl = pkgs.cyrus_sasl.override {
+    enableLdap = true;
+  };
 in
 {
  services.openldap = {
    enable = true;
+    package = (pkgs.openldap.overrideAttrs (final: prev: {
+      configureFlags = prev.configureFlags ++ [
+        "--enable-overlays"
+        "--enable-remoteauth"
+        "--enable-spasswd"
+        "--with-cyrus-sasl"
+      ];
+    })).override {
+      inherit cyrus_sasl;
+    };
+
+    urlList = [ "ldap:///" "ldaps:///" ];
+
    settings = {
+      attrs = {
+        olcLogLevel = "config ACL stats stats2 trace";
+
+        olcTLSCACertificateFile = "${cert}/ca.pem";
+        olcTLSCertificateFile = "${cert}/cert.pem";
+        olcTLSCertificateKeyFile = "${cert}/key.pem";
+        olcTLSCRLCheck = "none";
+        olcTLSVerifyClient = "never";
+        olcTLSProtocolMin = "3.1";
+
+        #olcSecurity = "tls=1";
+
+        olcSaslHost = "localhost";
+        olcSaslSecProps = "none";
+      };
+
      children = {
        "cn=schema".includes = [
          "${config.services.openldap.package}/etc/schema/core.ldif"
@ -33,24 +85,87 @@ in
            olcAccess = [
              # Custom access rules for userPassword attributes
              ''{0}to attrs=userPassword
-                  by self write
+                  by self read
                  by anonymous auth
-                  by * none''
+                  by * none
+              ''

-              # Allow read on anything else
-              ''{1}to *
-                  by * read''
+              # Synced is managed by sync
+              ''{1}to dn.subtree="ou=synced,ou=users,dc=hpc,dc=informatik,dc=hs-fulda,dc=de"
+                  by dn.base="cn=sync,dc=hpc,dc=informatik,dc=hs-fulda,dc=de" manage
+                  by * break
+              ''
+
+              # Allow login to read users
+              ''{2}to dn.subtree="ou=users,dc=hpc,dc=informatik,dc=hs-fulda,dc=de"
+                  by dn.base="cn=login,dc=hpc,dc=informatik,dc=hs-fulda,dc=de" read
+                  by self read
+                  by * break
+              ''
+
+              # Prevent access
+              ''{3}to *
+                  by * none
+              ''
            ];
          };
+
+          children = {
+            "olcOverlay={0}remoteauth" = {
+              attrs = {
+                objectClass = [ "olcOverlayConfig" "olcRemoteAuthCfg" ];
+
+                olcOverlay = "{0}remoteauth";
+
+                olcRemoteAuthTLS = "starttls=yes tls_cacert=\"/etc/ssl/certs/ca-certificates.crt\"";
+                olcRemoteAuthDNAttribute = "seeAlso";
+                olcRemoteAuthDomainAttribute = "associatedDomain";
+                olcRemoteAuthDefaultDomain = "upstream";
+                olcRemoteAuthDefaultRealm = "file://${config.sops.secrets."ldap/upstream/list".path}";
+                olcRemoteAuthRetryCount = "3";
+                olcRemoteAuthStore = "false";
+              };
+            };
+          };
        };
      };
    };
  };

+  systemd.services.openldap = {
+    environment = {
+      SASL_PATH = pkgs.writeTextFile {
+        name = "openldap-sasl-path";
+        destination = "/slapd.conf";
+        text = ''
+          pwcheck_method: saslauthd
+          saslauthd_path: /var/run/saslauthd/mux
+          mech_list: GSSAPI EXTERNAL PLAIN NTLM
+        '';
+      };
+    };
+  };
+
+  systemd.services."ldap-sync" = {
+    script = "${ldap-sync}/bin/ldap-sync";
+    startAt = "hourly";
+  };
+
  sops.secrets."ldap/root/password" = {
    owner = "openldap";
  };

+  sops.secrets."ldap/sync/config" = {
+    format = "binary";
+    sopsFile = ./secrets/ldap-sync.conf;
+  };
+
+  sops.secrets."ldap/upstream/list" = {
+    format = "binary";
+    sopsFile = ./secrets/ldap-upstream.list;
+    owner = "openldap";
+  };
+
  hpc.hostFile.aliases = [
    "ldap.${config.networking.domain}"
  ];
--- a/machines/manager/netinstall/default.nix
+++ b/machines/manager/netinstall/default.nix
@ -20,50 +20,51 @@ let
    }
  ];

-  api = pkgs.linkFarm "pixiecore-api" (mapAttrs'
-    (mac: name: nameValuePair
-      "v1/boot/${mac}"
-      (pkgs.writeText "pixieboot-api-${name}" (
+  commands = pkgs.symlinkJoin {
+    name = "pxeboot";
+    paths = mapAttrsToList
+      (mac: name:
        let
-          boot = installer.config.system.build;
          node = nodes.${name}.config.system.build;
+          boot = installer.config.system.build;
+
+          install = pkgs.writers.writeBash "install-${name}" ''
+            set -o errexit
+            set -o nounset
+            set -o pipefail
+
+            "${node.diskoScript}"
+
+            "${node.nixos-install}/bin/nixos-install" \
+              --root /mnt \
+              --system "${node.toplevel}" \
+              --no-channel-copy \
+              --no-root-password \
+              --verbose
+
+            reboot
+          '';
+
        in
-        builtins.toJSON {
-          kernel = "file://${boot.kernel}/bzImage";
-          initrd = "file://${boot.netbootRamdisk}/initrd";
-          cmdline = concatStringsSep "\n" [
-            "init=${boot.toplevel}/init"
-            "loglevel=4"
-            "nixos.install=${node.toplevel}"
-          ];
-          message = "NixOS Automatic Installer for ${name}";
-        }
-      )))
-    targets);
+        pkgs.writers.writeBashBin "pxe-install-${name}" ''
+          exec ${pkgs.pixiecore}/bin/pixiecore \
+            boot "${boot.kernel}/bzImage" "${boot.netbootRamdisk}/initrd" \
+            --cmdline "init=${boot.toplevel}/init loglevel=4 nixos.install=${install}" \
+            --debug \
+            --dhcp-no-bind \
+            --port 64172 \
+            --status-port 64172 \
+            "$@"
+        '')
+      targets;
+  };
+
 in
 {
-  services.pixiecore = {
-    enable = true;
-    mode = "api";
-    dhcpNoBind = true;
-    debug = true;
-    openFirewall = true;
-    port = 5080;
-    statusPort = 6080;
-    apiServer = "http://boot.${config.networking.domain}/pixiecore";
-  };
+  environment.systemPackages = [ commands ];

-  services.nginx = {
-    virtualHosts = {
-      "boot.${config.networking.domain}" = {
-        locations."/".proxyPass = "http://localhost:${toString config.services.pixiecore.port}";
-        locations."/status".proxyPass = "http://localhost:${toString config.services.pixiecore.statusPort}";
-        locations."/pixiecore".root = api;
-      };
-    };
+  networking.firewall = {
+    allowedTCPPorts = [ 4011 64172 ];
+    allowedUDPPorts = [ 67 69 ];
  };
-
-  hpc.hostFile.aliases = [
-    "boot.${config.networking.domain}"
-  ];
 }
--- a/machines/manager/netinstall/installer.nix
+++ b/machines/manager/netinstall/installer.nix
@ -3,13 +3,29 @@
 with lib;

 let
-  auto-install = pkgs.writeShellScript "nixos-install" ''
+  auto-install = pkgs.writers.writeBash "auto-install" ''
+    set -o errexit
+    set -o nounset
+    set -o pipefail
+
+    set -x
+
    if [[ "$(cat /proc/cmdline)" =~ nixos\.install=([^ ]+) ]]; then
      INSTALL="''${BASH_REMATCH[1]}"
    else
      echo "No install derivation found" >&2
      exit 1
    fi
+
+    ${pkgs.retry}/bin/retry \
+      --times 10 \
+      --delay 15 \
+      -- ${pkgs.nix}/bin/nix-store \
+          --realize \
+          --add-root /tmp/install \
+          "$INSTALL"
+
+    exec /tmp/install
  '';
 in
 {
@ -31,8 +47,12 @@ in
      wants = [ "network-online.target" ];
      after = [ "network-online.target" ];

+      conflicts = [ "getty@tty1.service" ];
+
      wantedBy = [ "multi-user.target" ];

+      path = [ pkgs.bash pkgs.nix ];
+
      unitConfig = {
        AssertKernelCommandLine = "nixos.install";

--- a/machines/manager/secrets.yaml
+++ b/machines/manager/secrets.yaml
@ -0,0 +1,39 @@
+ldap:
+    root:
+        username: ENC[AES256_GCM,data:aXIFdQ==,iv:tdC7GFit0LrO4DJL3vbI6uKCDXeYAOwDGwvOqrvn9mM=,tag:x1mBwe+K+UKjCpGO5qKMuQ==,type:str]
+        password: ENC[AES256_GCM,data:Q42VVdHaPZuvLR4HJ11CICpx61qTpw/v,iv:GhsXDsWxRinPOG+uMzy/uvxvMB1G8OKu4yH0a8achJc=,tag:yEWD4slZu/kDEV8ZJs43Hg==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1ys5pskgkjsgqfy2lr0afcnl2edry8jmryhymkwtked2se74e9g4s23gunn
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSA0anVoM3dITTB3SnN5OEZF
+            VWpLTzg1cXZUTlhkZFl2dm8yWCtSWlRwRW5rCkRNK24wTHFkQk5WdVhEQjVGRTVh
+            Vy9pazNwZGRWblJVVHJSa1E1OWN4RTgKLS0tIElZc3BncTFwbEhjRjFickdWWXNY
+            Sms0RWZ0RUhwNGVvbFk1dDBVZHcvZTQKEeTTP2Ked+C9XgKxVug/KIcJ/ES9nLRc
+            n5DsivfiAsoALxTsIRJvjPt/PNZimIeO3nobFPNuvQLb7Q27++My/g==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2023-06-27T09:57:35Z"
+    mac: ENC[AES256_GCM,data:QpMkI/w+J49DeQ0EDrz+6WtbtvJrgNChI1Z4PNNjdD2cik9wvtZNMUhjJVV18dUxWRH3dkhwX7Jt4mPhlDjhDspbkKsNjKaSApOS8AACybs8FqodvlUCU2mF+xG4beblQn3n8oPcqc5kjbAFc2r+mPSb4b7rcoS+xrB3rKUJTng=,iv:xsjx8Gz5UfpAXMEDEzMA4Kau4BI0vq3xvgfFvHS4uFo=,tag:aiFD1PXsHtiXFrx+legUhw==,type:str]
+    pgp:
+        - created_at: "2023-06-27T09:57:24Z"
+          enc: |
+            -----BEGIN PGP MESSAGE-----
+
+            hQEMA5ntoryXZPD4AQgAivbPI9NjQLAaIi4wE62yy1snYbzsZxsV4fktk4ebhYBQ
+            buvDARS3ZGQV9Tqi2xfmGx7SF3QHHWkqcYNMuBrjKSLIsgnLYW0sKd3fTU0/yux4
+            7b+duZO66r2gjlFwf7dFKBwn62ln4eLtvHREZbB0UWACaRdwQnmQdRL2v9hQXbcU
+            /TQiq0msqCfSRLao3wWWl4LvyVY8Uv31K9Kt8NGJYL0yWYuIUMXJhx+ioIbqEBOL
+            XOEl4JVmR4nZ6Y/aQ3FIeW/+QjXiqenVect7i52+Bv6kVzc10Zeu0qYRI1o6hpLL
+            iS+/cNaNfu6QZRrypQpkzTjY3kzWWgLI9WhC40pxdtJcASZvVAQqtn3eR5FBs2/N
+            oRC9WrVE/b8NhgmpJXtbJkTwNLDKZ5rX0/k1lBpqmSKUgfc4Sr9HMzlHsmmIc91F
+            p5WpSSH0uHoebg6QnNqQXcRRk4Zh7SU4YSEJHNY=
+            =gHvl
+            -----END PGP MESSAGE-----
+          fp: 3237CA7A1744B4DCE96B409FB4C3BF012D9B26BE
+    unencrypted_suffix: _unencrypted
+    version: 3.7.3
--- a/machines/manager/secrets/ldap-sync.conf
+++ b/machines/manager/secrets/ldap-sync.conf
@ -0,0 +1,30 @@
+{
+	"data": "ENC[AES256_GCM,data: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,iv:f1ZwZgu9UyzGnxE3qKPl4K6tlnqvk9jPLAYVXP7W+jI=,tag:iAXKNN/EFh4Z5HjDQogNPQ==,type:str]",
+	"sops": {
+		"kms": null,
+		"gcp_kms": null,
+		"azure_kv": null,
+		"hc_vault": null,
+		"age": [
+			{
+				"recipient": "age1ys5pskgkjsgqfy2lr0afcnl2edry8jmryhymkwtked2se74e9g4s23gunn",
+				"enc": "-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBvS3l2MU4ycE9idHIwREU0\nM3k0c05idmNqVlB5anVONCtXRWNzckROYVI0CmdhVDkyVGtyczYzTGREVmpyR2g1\ncGtWeDc0Y1lqSVVWV3plZHU2cXVNZzgKLS0tIE1nYWxQL204SFNyTEVGQytJdk12\nQ3NVNHRIMTAyalBoSVBuVkNKWEhzdTgKd5b9zzarSyxl8CAugOVVJzEAG0N2mn70\nxB0PPSzXFv0fILb1h8A5bdDf1snxsbdIAfUWucSX3arCoU5l6LmHRQ==\n-----END AGE ENCRYPTED FILE-----\n"
+			},
+			{
+				"recipient": "age1s3evxsdz6zly5qn4fjfl4py8z35n8penm63uwmq0ge2kx0u4rsdq07cn90",
+				"enc": "-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBHOUsrS2tyTUVEUEZaN3pR\nR0drZ3JDdUtMRHhJaGtONWtwK2Ftc1JsUFRJCjZtYXFubmlpTWtHNVpRU1ZhdThl\nUFVXUERDazdvSGtDOXc1VFNqeTRKRGcKLS0tIDhTdWhWU0dCUUYrZkdSRkVxbGFE\nYkg2Nk42VnUwZFhZVXdsWHFKYnUrMVEK0Aj6aON/QIFT2fsv2D9Ajvu+f6mHT4Q3\nm5uo99snnGEl3VIcvhC2yKGEtw3XOVpCfk5xHYLV2nlSs4WCc2DrkA==\n-----END AGE ENCRYPTED FILE-----\n"
+			}
+		],
+		"lastmodified": "2023-06-29T15:34:22Z",
+		"mac": "ENC[AES256_GCM,data:T4RlkuFsOJflLOkuvfRnhtnAp5iytfSPEla+Tf4v2zvdo1Gvh3wBmCItBdxhL8mGAl7JZCtJ5InGEccxsjBi+rgNrw9iQwYJMk4hLi6NrUYRCObhzk06JyMW3XM5N4yOQZBUEg/KWUuFR9oQhIP5A0pPdYqctalTg2GKTyusERo=,iv:dErVyHcD9A3elIZcOa0S5kryC6jmYeW4xxvfjHHviZ4=,tag:OupqMXrY147GxxEow7Hkjw==,type:str]",
+		"pgp": [
+			{
+				"created_at": "2023-06-26T09:22:36Z",
+				"enc": "-----BEGIN PGP MESSAGE-----\n\nhQEMA5ntoryXZPD4AQf/f7WlPOXFZGMzz/XKT0wU5HyzkdAkZg6uzSWMYeFzuzyL\nFjuAL3b1gQ5ACXwxUaoUtAN4iXdHdVtJDZxqgYiDHoqd4KBG0DtWZUzvgpT+nbcr\nkE1nQnV0Y7GIgpoJFblQKAsCYikbYGhzptHhsYRY7jB5wseOEyaEV1nS4Bh0E8rc\ndAVI8G7XreIU04cMixIqPd7f1gND/E1y1XhqoT8eQXsa43Ozi9BEobjaAXPnCjsd\nOiMcGvIYW+w+kdY2Q0R4SN3GNRt3KJnBVnL/PCuffz5xQxlnwEvS0palQNioGvrN\nfhXG5JO6cdxgExhjcw/HJEdHjl8iCG15NN6Z0ZDhD9JeAUPRivJeq1CvGJlrkD3U\nAANHHBAyQgpti23908tOsvePujOrYu2+OyG4SN5pdPvNCroDPoKTDGBik7ZvK6J8\n6TowTtKHE0xlhgRcKNNT0qYk02kmbbwtgvLuliBodw==\n=BlGq\n-----END PGP MESSAGE-----\n",
+				"fp": "3237CA7A1744B4DCE96B409FB4C3BF012D9B26BE"
+			}
+		],
+		"unencrypted_suffix": "_unencrypted",
+		"version": "3.7.3"
+	}
+}
--- a/machines/manager/secrets/ldap-upstream.list
+++ b/machines/manager/secrets/ldap-upstream.list
@ -0,0 +1,30 @@
+{
+	"data": "ENC[AES256_GCM,data:u6XAULb0jpux4kvwJipsX0rMTQ5oLP5UtPZNNOJ7ujuv,iv:HuowckOTkBG0NOM6aRJUmJA3f9L0SxVm/w9WAXG4l6Q=,tag:2OKpVjxvFA0nELtWhPcSPQ==,type:str]",
+	"sops": {
+		"kms": null,
+		"gcp_kms": null,
+		"azure_kv": null,
+		"hc_vault": null,
+		"age": [
+			{
+				"recipient": "age1ys5pskgkjsgqfy2lr0afcnl2edry8jmryhymkwtked2se74e9g4s23gunn",
+				"enc": "-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBzRXhlTTBXRG01clZSTFpV\na1pTOGVac3JlOVdDRzFyd0xGeWFPbmN6empvClpJa2N5Ui9NVlNoNnFHUHBlSGl3\nVnpGd21zYVBlUGpIR2hrQk5MSXdHYlEKLS0tIFcrS0NpaERzbVdZQlVWY3dSUG1u\nMnQzWVVrOGd5TWJxYUZPZVFsTmlvWDQK44uh8H1soJ14eUxtCfcFpKf91zzYuwke\n6LZD0ugNeU61vGNltdI573Vz5e12+t7rxSd/Jdl9ADlGN1Mvnw4SUw==\n-----END AGE ENCRYPTED FILE-----\n"
+			},
+			{
+				"recipient": "age1s3evxsdz6zly5qn4fjfl4py8z35n8penm63uwmq0ge2kx0u4rsdq07cn90",
+				"enc": "-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSAxZkJBY1ZIdXYwblFmTHYy\nelZkbEFDU3Z4T05KdWtQVFQrTEc5NUFhdUZJCjd0Ri9rV2V4cmxXVFJUbHQxVG9r\naTZLemhlQnBIdEh3Z0oyV3pPa1JhL2cKLS0tIGVhdkV3d2lEQ3MzanpNVnQrQS92\nL2VZdVpSZjlCQzJQTWY1V1EzSzZvL2sKu4UPoUmkuU60oIKlDgly1D8UjWuKVwnF\nBSUFf+m7ssAg1OK2uYbjWC6/XBo4nmmltKac1sEwALxadU2/kBDu3w==\n-----END AGE ENCRYPTED FILE-----\n"
+			}
+		],
+		"lastmodified": "2023-06-29T14:33:42Z",
+		"mac": "ENC[AES256_GCM,data:ZDmRDxJPSmWmZL/daV37H1s9kTp5j8/WK0GbQ6JZef9OHWTXrlpUyZWSkh/mCVbIs9bD96WVos4rLX5rDOlIcMiMXEKcsw63M9KcMlLWvjqkK/D+fnhIqAiNwNPwd4aAV4SaS+3UVlucKgQIaSl06ibrEX1/dTg4by17xEIx43c=,iv:V5mN7N1dewLwqnIWKih6Uu/ocKZ1hU5wcoNW1KSF5x0=,tag:7m3KSBREQSK5ch5PZhPLgA==,type:str]",
+		"pgp": [
+			{
+				"created_at": "2023-06-29T08:41:58Z",
+				"enc": "-----BEGIN PGP MESSAGE-----\n\nhQEMA5ntoryXZPD4AQf/QTiDvYzIo69KMIL2Q4zfpusal9NWTdIuHGV9UmgcuwvP\nhfPa4HTXlNWoE/YBBh8AvwQemrup6toH7V+mbsNlUWJXN+Pwj/+0OMe1Cl+X/VUf\nojE5Rkr2PJBcSRW2sEa2RlVhjPALxR8UR6NKc4HkJVvBnJUng7lxOPXSQOE5M245\n3G44tKDIrQIId7naQNh9fcGJksrtJnbYufMdBOJlwwNueeEJ/ovlGvN8dU/s8OzU\nTML0QD+nRM+vz/hKOAU9R4pYO1qxViVhgeOyms5MRgSyWYLy+HsYx4xByGXNcv8I\nJ58NEYgqICkYYUNeVDr3ONsEYN0hL4VSksX2RacqbdJeAVaUtSRUH1kknrN1gAlA\nx2LB/PFFCR2aGsQWYWnBPhjtdVAVy4flUDtTkquQp837hQZZre+xEP4snY05RYdv\nhqzm7g3iZbDO/nRnsEWj13dygzHwGHruVk3T7XqQxw==\n=BGBU\n-----END PGP MESSAGE-----\n",
+				"fp": "3237CA7A1744B4DCE96B409FB4C3BF012D9B26BE"
+			}
+		],
+		"unencrypted_suffix": "_unencrypted",
+		"version": "3.7.3"
+	}
+}
--- a/machines/manager/secrets/saslauthd.conf
+++ b/machines/manager/secrets/saslauthd.conf
@ -0,0 +1,30 @@
+{
+	"data": "ENC[AES256_GCM,data:pekng5DHyeza16XqzFIxKWKktRUZ8mMDnjMGln47d2K6ojzl7KetDwDeyjq25RRTL8ssev/hbHI/7jZo56KI8rKjJ4AsQrECNUu8djjek6yfwPonzSP58nKYllufQiQGPq6yIc7VxMX5wBARh03/2KtObOmiPvGmyFasSVv9Vfg0rCgTG7kD3D6Xvha8fd17I8cl9fFZJH5SsDuzFgyGanwaol7FumXzBwDq4HbQG43aC/YctjwgZaVA7Y9Gah3IULies2r54Le5DCd+Maysg3mJ+3uwEOxqtwumVX4KyGnZ7MpJSwu574xgVj5xFSCAt5W97IoeOWHV+Xru6JQCR/p6UC1VSnJzNFL9TjqW39qNOKgrpsN9b5KciPiLBTTpJF7ij23rYZ0jBkuYeEH7jCzIiaW/P08G2RU/gg==,iv:u7YpDyqO/61JLk5AmBLzgtfkzoJs4I1CIew99lAgXzM=,tag:JXCYrT92t0n7TMtYbe1iEQ==,type:str]",
+	"sops": {
+		"kms": null,
+		"gcp_kms": null,
+		"azure_kv": null,
+		"hc_vault": null,
+		"age": [
+			{
+				"recipient": "age1ys5pskgkjsgqfy2lr0afcnl2edry8jmryhymkwtked2se74e9g4s23gunn",
+				"enc": "-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBQcFA3bTVxNnRJREtqU2dN\nSFFtUzVyVjdxclFwSHhibEJLMjZXNDZYQ1ZVCnFOVE9sY01QWXlBNlViRDJpb3Z5\nSVBTamR2V1lPVTNUSktRVTloc2hyU2MKLS0tIG5rdm9TYlpHS2JWMTVEUlYvUm1T\nN2Y4UDB6K2VqbFRSSVpKSXUzaFNqYXMK1FtROF7wMlwtKNIN55fWS+OXovVfwzML\n9uObWRxuI2ePJz6pTIhDGJ3m9azGepG02ynX/ZpZ3ggkTnULL+pV3w==\n-----END AGE ENCRYPTED FILE-----\n"
+			},
+			{
+				"recipient": "age1s3evxsdz6zly5qn4fjfl4py8z35n8penm63uwmq0ge2kx0u4rsdq07cn90",
+				"enc": "-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBMdGM0Z2VPdEs2VWd4a1lU\nN25XdUFXMkt6cHBNeHBUMUNPc1pBYXRKTmxNClI1UGZYZEROTTF6YUVMQ1JhZ3hZ\nRzk3bHBhS1Yvamh4eDZDajVCUWxUQ1EKLS0tIDVodVpIYkVsSnhJZTM4WkxTbnNz\nTTRESnlSZVdndVR0UGJRSkRvTVo5b3MK5ncgqt7iq5C2WSskWK4Aqy8lONpEgHbA\ncRXaXwO9dbRd9Qo9Am1VeKHyPXVOga/pJONPt6SNBjWhvpBiwStzDQ==\n-----END AGE ENCRYPTED FILE-----\n"
+			}
+		],
+		"lastmodified": "2023-06-28T12:21:14Z",
+		"mac": "ENC[AES256_GCM,data:IbNlGRnejcbpN8JkHZZ5S0brF7HxJnB9+scAZ4lStO0HuUG32TFmdbCC5mIY8Ci7M91kT4+ikqKJ3dMWiwhBrAQh766tSVHlyKw81P2kQGGD13Fe+pujPIPBTum9jAwhKDEgNA8Jgm+4NiOUq1n0mksFkbDqNj5vdvNAn0i5I/Y=,iv:e6VEUgGX51STIZdbKobyN/vwPgKwnrDNM/vA80EAtl4=,tag:zv+meM5/gJ8Ry4VtkBDTnQ==,type:str]",
+		"pgp": [
+			{
+				"created_at": "2023-06-28T12:20:31Z",
+				"enc": "-----BEGIN PGP MESSAGE-----\n\nhQEMA5ntoryXZPD4AQf+PR9rAWJHzPWF4LZ+/2yNTzMG0qbgiPevLCNcJCUp4DZ6\nCbBuHrEJVrOdQuCb/rKcgYtnr2Ec4cWZ5kk+wZVKNR6+GsloA1n4C7cY+5aWr7Oo\nKOpuZICUxMLgf/PlSUq5NBAG0oDfT71+N3uQJJhclaPs+P1EcjceX45s48t+A36v\nks8WMqgVMDw5TRxI377WzR7olS99eMAVaLISlu04OIIZw+J7cfaRAgA6gegF2rZZ\nNDYOBXlH4mqKGjmQ6SWyQODUUoAsk5hBWDV7LXyjGIh6Tld+wLlddjC5Abwp9H0m\n2FIDMbIokr72i9c1F1lRp+0PsQsF09UU1Mtg2iBjBdJeAd61RpZQ++a9VziqP1Ex\nMB4FPrsU4qgT3VsvvjYZzPyews5XHOczA/aocUFVf4r1QPFOwt/6wbSLnJ8g472c\nFfBuv+KTjKWLwJYtQDoHTKuiLcQDX5acbLLmT6GDxg==\n=GRPn\n-----END PGP MESSAGE-----\n",
+				"fp": "3237CA7A1744B4DCE96B409FB4C3BF012D9B26BE"
+			}
+		],
+		"unencrypted_suffix": "_unencrypted",
+		"version": "3.7.3"
+	}
+}
--- a/machines/node/disk.nix
+++ b/machines/node/disk.nix
@ -5,10 +5,16 @@
      type = "disk";
      content = {
        type = "table";
-        format = "msdos";
+        format = "gpt";
        partitions = [
          {
-            index = 1;
+            name = "boot";
+            start = "0";
+            end = "1M";
+            part-type = "primary";
+            flags = [ "bios_grub" ];
+          }
+          {
            name = "root";
            start = "1MB";
            end = "-4GB";
@ -22,7 +28,6 @@
            };
          }
          {
-            index = 2;
            name = "swap";
            start = "-4G";
            end = "100%";
--- a/patches/colmena-disable-ssh-master.patch
+++ b/patches/colmena-disable-ssh-master.patch
@ -0,0 +1,13 @@
+diff --git a/src/nix/host/ssh.rs b/src/nix/host/ssh.rs
+index 1622007..5824494 100644
+--- a/src/nix/host/ssh.rs
+++ b/src/nix/host/ssh.rs
+@@ -345,6 +345,8 @@ impl Ssh {
+             "StrictHostKeyChecking=accept-new",
+             "-o",
+             "BatchMode=yes",
+             "-T",
+            "-o", "ControlMaster=no",
+            "-o", "ControlPath=/var/empty/non-existant",
+         ]
+         .iter()
--- a/secrets.yaml
+++ b/secrets.yaml
@ -1,51 +0,0 @@
-ldap:
-    root:
-        password: ENC[AES256_GCM,data:bYuw+9ywfRDNVt0nrLDmWE8+f8aHQvGd,iv:JHU3MxmNdxI2a62Dcky8xhHhjhcxyjM0Z0xLEnLxJwU=,tag:3VW0zTlRFxLDI8WxGu1lew==,type:str]
-    login:
-        password: ENC[AES256_GCM,data:IFPwehOGSYore+HEv7MyymCKaOKn5XEH,iv:JTrZucSL/MohMgUdWqalpgjCCh7ueXd3cgNB0FuJo/U=,tag:o/1nvTrfojYsXYeuvxKfNg==,type:str]
-beegfs:
-    connection: ENC[AES256_GCM,data:YTHMg76+5Azb+ex5ArUHt4xP+YYWr9Ph,iv:TEf8i+yezPsaW12Lg5jRnhds9uW9WhV6duZPdxeW9co=,tag:bPGsl7ofwE1Jh+FTyHJqzQ==,type:str]
-sops:
-    kms: []
-    gcp_kms: []
-    azure_kv: []
-    hc_vault: []
-    age:
-        - recipient: age1ys5pskgkjsgqfy2lr0afcnl2edry8jmryhymkwtked2se74e9g4s23gunn
-          enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBSVVdBd0hvWG0zT3BTRGVh
-            NWxtdlJocy8wSnIvMUdoOVZYM0owMW9TWGxnCmZLcStDdzVvNlh3dzVQN0NvVUJw
-            S1l5aG9ocVp3RWNJbWl5bjVxT3U3WjQKLS0tIEZkdHk4dGM4YnloR2FZSkNWOWxo
-            cXg2OTd4OTRzN1MxWmtIczRleXdBU0UKID449Ln3KBshJVgn2RyZS5M73WGDWMs8
-            HxrSlpf8HajxtU/iPpgkIRHLNIVa0C/1NlQOTvxPyDhEvuV31xm/JQ==
-            -----END AGE ENCRYPTED FILE-----
-        - recipient: age1q3tqh4w7yeae4xs0cxevtp5tn4gm8xthc39fsht2kv9rq7xm4q3qxqt9sh
-          enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBkM0ErekJGUlVRZDFQMFpN
-            UlBOdUpIMENSbEVMZnhKcFRLelBFZUlFdjFjCk9ucFExMmFGSjVnT0Mxdml0MVRI
-            NWNzeHM3cVpSMzE1STlHQkdKUW9NTm8KLS0tIDFSS2VWbHN4ckpCc3p0YXV3Mitp
-            T2h5bStSVFQ1YXM2TXgyQnk2amdQKzgKzncSU2ryAYQHlsSeFejE2NfHxoR9WJDm
-            jy2ALBMAInl7e5TP89QAEvthUrfyos3f8jV4GOQm7TIerYTr/5kctA==
-            -----END AGE ENCRYPTED FILE-----
-    lastmodified: "2023-06-01T13:46:17Z"
-    mac: ENC[AES256_GCM,data:Uei7c4/hHSqtv0bN2dLrF3mh6MYrx85N0KXO2R/Eu+78MTlwKPmCeD1H4tfyMTS4hJdjGYmk6H8Hj5K5B7irmb39BKnGWq86eFj9AxhODr4/nS0n1f+F4lX5R/3v5JJ4J54y0IymfQj/iN5QZsOGmVw9z8cFs5a9tUD118yYq3E=,iv:OXt5e854thU/SWFhoiy/YzDBqzF3M3GRXXIFaAX+Vrs=,tag:KuuxsINhybfd274v3z63qA==,type:str]
-    pgp:
-        - created_at: "2023-06-01T13:41:20Z"
-          enc: |
-            -----BEGIN PGP MESSAGE-----
-
-            hQEMA5ntoryXZPD4AQf/X1yiMrb68+TJkcOH010pRLVUu6Wlsr51nFsuObSx+8Vs
-            I43EPxiFEHa5fQvi6KMqUgfc50aYfjcS8ZKy67B6Hf4F7h5kB2dGCkOjjmBLYX2W
-            dc20han6qDfPUFnp+owoNEspMvHjcGAhm1CKKFXS7cr4VgdRZCQPfmQwhHSnMk/B
-            ii4j1sgCNoOnzXUuEfZ0InN+VVKCxGtidAiFXjBtaoqordlFllje4znxXDjIHM8/
-            APzRYtP1TcZG6c/WorgkOpwSIX4tz8ZNePmXdkbg9wxvg0lAb+ACX8vRGXBnbZ8d
-            oQ1dHcGfIaA+GWVF5uTuabShbHqL7cg2D+TJUWh1CdJeAYBQqSl/8mE2N9i8Vojx
-            shSnO2hCF2cTKU/gzSy8VYmvHiZTPKUcyffDRoTqBj77gmCwLUE0aIF2R7YkQor5
-            SNe+HeQ6WxIJD2D09wvhDg+TD+jNskxEcjI8EMueZQ==
-            =l0Nv
-            -----END PGP MESSAGE-----
-          fp: 3237CA7A1744B4DCE96B409FB4C3BF012D9B26BE
-    unencrypted_suffix: _unencrypted
-    version: 3.7.3
--- a/shared/default.nix
+++ b/shared/default.nix
@ -1,4 +1,4 @@
-{ pkgs, config, modulesPath, ... }:
+{ pkgs, config, modulesPath, machine, ... }:

 {
  imports = [
@ -6,13 +6,14 @@
    ./users.nix
    ./ssh.nix
    ./rdma.nix
+    ./ssl.nix

    "${modulesPath}/profiles/headless.nix"
    "${modulesPath}/profiles/all-hardware.nix"
  ];

  sops = {
-    defaultSopsFile = ../secrets.yaml;
+    defaultSopsFile = /${machine.path}/secrets.yaml;
    defaultSopsFormat = "yaml";

    age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
--- a/shared/network.nix
+++ b/shared/network.nix
@ -8,7 +8,7 @@
  ];

  networking.nameservers = [
-    "10.0.0.52"
+    "10.0.0.53"
    "10.1.1.10"
  ];

--- a/shared/secrets.yaml
+++ b/shared/secrets.yaml
@ -0,0 +1,49 @@
+ldap:
+    login:
+        password: ENC[AES256_GCM,data:IFPwehOGSYore+HEv7MyymCKaOKn5XEH,iv:JTrZucSL/MohMgUdWqalpgjCCh7ueXd3cgNB0FuJo/U=,tag:o/1nvTrfojYsXYeuvxKfNg==,type:str]
+beegfs:
+    connection: ENC[AES256_GCM,data:YTHMg76+5Azb+ex5ArUHt4xP+YYWr9Ph,iv:TEf8i+yezPsaW12Lg5jRnhds9uW9WhV6duZPdxeW9co=,tag:bPGsl7ofwE1Jh+FTyHJqzQ==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1ys5pskgkjsgqfy2lr0afcnl2edry8jmryhymkwtked2se74e9g4s23gunn
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBUUGZ5RXVyV3g3cXBMSmtt
+            d2tvL0ZhL01ISHE0RVB1alZDVFZ3RHRtZndVCnVGWDIrSmdsa055THdld0lUeEVq
+            NWxRUllKQkdhdkFvZkI5MEVXV212ZVkKLS0tIFlPWE84M2U1dUlLTGlLc2N1UXJV
+            UlV1UEs3cE9Bc0VqdWRSYmtOd3V1bTgK0q1nj4z4Tnso5ts4sCEn0jEunhFuuk+W
+            5d3ktEhBY6vC/eNMmv0B9+Z9/Tw3dbmou/VATObWAvprIVR143oIIw==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1s3evxsdz6zly5qn4fjfl4py8z35n8penm63uwmq0ge2kx0u4rsdq07cn90
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB3S2dqcXM5UUNvWjZxU3pW
+            dytFeStXNUdaV3YxSXlKUkZuUFp6ajNTOGpRCkF0TzQ4U25lamZRUGhNeDE4blN5
+            S2t3ZTVrWWVmSkN5V1VmVzdGcS9Za1kKLS0tIEE4azlPdTZoK09xTHNzc3dQNUIv
+            T0hhOHIxRXB0Y2g5M1BIK0R5cjBCcncKwZHZHnQN0GGnzOXFGDFhUqx8Nzxk3Vx2
+            Gr+6Z/OjxFREPzDlrLS5No4huQiNMhMjacw2uqmcVLOVSVy8HaCHXg==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2023-06-27T09:58:35Z"
+    mac: ENC[AES256_GCM,data:pPgwJnUdwQegqaCXdh7lweQq2Kos6szvo/mfBul+2TruUSSRXlGwKmNVLM2BuodMNZpTan2vCyvVlXvN4zBfW6nVWPzlBrCTbgtyBNodB+k3OJsfgUElQ32T9KccsMVuUsfKDzjhlFnV3NA9A7DVnrYz+jf1NcNSsz4yOjHudzA=,iv:ciFHyXhIcNFlB9fhzcAX8LICIsGPWDe29fxtjmJ0G+s=,tag:oldhGvm8vfPnuhpIXIpVWw==,type:str]
+    pgp:
+        - created_at: "2023-06-26T09:22:14Z"
+          enc: |
+            -----BEGIN PGP MESSAGE-----
+
+            hQEMA5ntoryXZPD4AQgAi8lqhO1SXvABXXZGNTaU+T4Z/9KWqGltg7nq4qhU44cN
+            Ge3zstD887gUsxoUEWCSUXoTHSoV6nilgs0KdIs1Jul6MVrK9xFqL9aQMfS4pTMS
+            oXRbkhtvzbNrxN091sh8rDxzG8OlCU+aE4IyPt4scdDMNviq8vebtmiQjOEv9M00
+            HDngyFHVMPsCzWW/cD1D/N/2xQFE9kt1GLbZsOoO41/muyiXVA6uoL8nFXlFZ5MR
+            H9hJRyfjH5XbGBguKzSPW9rtdbcZZfMark91JCodQQxnA+Tq15cUtM0lOTP6UZvt
+            7EQ/ayD6T+wziYXR0iuc7m9uCKTJoY83PK3xkt02hNJeAWU6A33sEe5bPnepTHR+
+            4kT+YxJY5etwYt5KbLCNtVRcL5cCc7jCyYq4m9kRn30evUyMJdmq02fjAi3JgVpW
+            DZeuooaR6CAQiT8O/BLfNIxRyebAKLJoo6l7szotTA==
+            =3PbD
+            -----END PGP MESSAGE-----
+          fp: 3237CA7A1744B4DCE96B409FB4C3BF012D9B26BE
+    unencrypted_suffix: _unencrypted
+    version: 3.7.3
--- a/shared/ssl.nix
+++ b/shared/ssl.nix
@ -0,0 +1,65 @@
+{ pkgs, lib, config, ... }:
+
+with lib;
+
+let
+  ca = pkgs.stdenv.mkDerivation {
+    name = "hpc-ca";
+
+    nativeBuildInputs = [ pkgs.minica ];
+
+    phases = [ "buildPhase" "installPhase" ];
+
+    buildPhase = ''
+      minica \
+        -ca-key ca.key.pem \
+        -ca-cert ca.cert.pem \
+        -domains "ca.${config.networking.domain}"
+    '';
+
+    installPhase = ''
+      mkdir -p $out
+
+      mv ca.key.pem $out/
+      mv ca.cert.pem $out/
+    '';
+  };
+
+  ca-cert = pkgs.runCommandNoCCLocal "hpc-ca.cert" { } ''
+    cp "${ca}/ca.cert.pem" $out
+  '';
+
+  mkCert = domain: pkgs.stdenv.mkDerivation {
+    name = "hpc-ca:${domain}";
+
+    nativeBuildInputs = [ pkgs.minica ];
+
+    phases = [ "buildPhase" "installPhase" ];
+
+    buildPhase = ''
+      minica \
+        -ca-key "${ca}/ca.key.pem" \
+        -ca-cert "${ca}/ca.cert.pem" \
+        -domains "${domain}"
+    '';
+
+    installPhase = ''
+      mkdir -p $out
+      
+      mv "${domain}/key.pem" $out/
+      mv "${domain}/cert.pem" $out/
+
+      ln -s "${ca}/ca.cert.pem" $out/ca.pem
+    '';
+  };
+
+in
+{
+  security.pki.certificateFiles = [
+    ca-cert
+  ];
+
+  _module.args = {
+    inherit mkCert;
+  };
+}
--- a/shared/users.nix
+++ b/shared/users.nix
@ -6,6 +6,7 @@ let
  baseDN = concatMapStringsSep ","
    (part: "dc=${part}")
    (splitString "." config.networking.domain);
+
 in
 {
  users.mutableUsers = false;
@ -21,13 +22,15 @@ in
  users.ldap = {
    enable = true;

-    server = "ldap://ldap.${config.networking.domain}/";
-    base = baseDN;
+    useTLS = true;
+
+    server = "ldaps://ldap.${config.networking.domain}/";
+    base = "ou=users,${baseDN}";

    daemon.enable = true;

    bind = {
-      distinguishedName = "cn=root,${baseDN}";
+      distinguishedName = "cn=login,${baseDN}";
      passwordFile = config.sops.secrets."ldap/login/password".path;
    };
  };
@ -42,6 +45,6 @@ in

  sops.secrets."ldap/login/password" = {
    owner = "nslcd";
-    key = "ldap/root/password";
+    sopsFile = ./secrets.yaml;
  };
 }
--- a/sops.nix
+++ b/sops.nix
@ -0,0 +1,56 @@
+{ lib
+, callPackage
+, runCommandNoCCLocal
+, ssh-to-age
+, ...
+}:
+
+with lib;
+
+let
+  adminKeys = [
+    ''3237CA7A1744B4DCE96B409FB4C3BF012D9B26BE''
+  ];
+
+  machines = callPackage ./machines.nix { };
+
+  sshToKey = name: path: runCommandNoCCLocal "sops-key-${name}.pub" { } ''
+    ${ssh-to-age}/bin/ssh-to-age < ${path} > $out
+  '';
+
+  # Map machine name to its key
+  machineKeys = listToAttrs (map
+    (machine:
+      let
+        keyFile = sshToKey "machine-${machine.name}" /${machine.gather}/ssh_host_ed25519_key.pub;
+      in
+      {
+        inherit (machine) name;
+        value = removeSuffix "\n" (readFile keyFile);
+      })
+    machines);
+
+  pattern = path: "^${escapeRegex path}/(${escapeRegex "secrets.yaml"}|secrets/.+)$";
+
+  machine_rules = map
+    (machine: {
+      "path_regex" = pattern "/machines/${machine.type}";
+      "key_groups" = [{
+        "age" = singleton (getAttr machine.name machineKeys);
+        "pgp" = adminKeys;
+      }];
+    })
+    machines;
+
+in
+{
+  config = {
+    "creation_rules" = machine_rules ++ [{
+      "relPath" = pattern "shared";
+      "key_groups" = [{
+        "age" = attrValues machineKeys;
+        "pgp" = adminKeys;
+      }];
+    }];
+  };
+}