Merge pull request 'colmena + multi location' (#64) from colmena into main

Reviewed-on: #64

flake.lock

@@ -26,23 +26,20 @@
     "deploy-rs": {
       "inputs": {
         "flake-compat": "flake-compat_2",
-        "nixpkgs": [
+        "nixpkgs": "nixpkgs_2",
-          "nixpkgs"
+        "utils": "utils_3"
-        ],
-        "utils": "utils_2"
       },
       "locked": {
-        "lastModified": 1653594315,
+        "lastModified": 1648475189,
-        "narHash": "sha256-kJ0ENmnQJ4qL2FeYKZba9kvv1KmIuB3NVpBwMeI7AJQ=",
+        "narHash": "sha256-gAGAS6IagwoUr1B0ohE3iR6sZ8hP4LSqzYLC8Mq3WGU=",
         "owner": "serokell",
         "repo": "deploy-rs",
-        "rev": "184349d8149436748986d1bdba087e4149e9c160",
+        "rev": "83e0c78291cd08cb827ba0d553ad9158ae5a95c3",
         "type": "github"
       },
       "original": {
-        "owner": "serokell",
+        "id": "deploy-rs",
-        "repo": "deploy-rs",
+        "type": "indirect"
-        "type": "github"
       }
     },
     "flake-compat": {
@@ -203,7 +200,7 @@
         "nixpkgs": [
           "nixpkgs"
         ],
-        "utils": "utils_3"
+        "utils": "utils_2"
       },
       "locked": {
         "lastModified": 1659144434,
@@ -222,7 +219,7 @@
     "nix": {
       "inputs": {
         "lowdown-src": "lowdown-src",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs_3"
       },
       "locked": {
         "lastModified": 1633098935,
@@ -240,7 +237,7 @@
     "nix_2": {
       "inputs": {
         "lowdown-src": "lowdown-src_2",
-        "nixpkgs": "nixpkgs_3"
+        "nixpkgs": "nixpkgs_4"
       },
       "locked": {
         "lastModified": 1633098935,
@@ -273,17 +270,18 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1632864508,
+        "lastModified": 1648219316,
-        "narHash": "sha256-d127FIvGR41XbVRDPVvozUPQ/uRHbHwvfyKHwEt5xFM=",
+        "narHash": "sha256-Ctij+dOi0ZZIfX5eMhgwugfvB+WZSrvVNAyAuANOsnQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "82891b5e2c2359d7e58d08849e4c89511ab94234",
+        "rev": "30d3d79b7d3607d56546dd2a6b49e156ba0ec634",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
+        "owner": "NixOS",
-        "ref": "nixos-21.05-small",
+        "ref": "nixpkgs-unstable",
-        "type": "indirect"
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "nixpkgs_3": {
@@ -301,10 +299,24 @@
         "type": "indirect"
       }
     },
+    "nixpkgs_4": {
+      "locked": {
+        "lastModified": 1632864508,
+        "narHash": "sha256-d127FIvGR41XbVRDPVvozUPQ/uRHbHwvfyKHwEt5xFM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "82891b5e2c2359d7e58d08849e4c89511ab94234",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-21.05-small",
+        "type": "indirect"
+      }
+    },
     "root": {
       "inputs": {
         "colmena": "colmena",
-        "deploy-rs": "deploy-rs",
         "minecraft-servers": "minecraft-servers",
         "nixpkgs": "nixpkgs",
         "serokell-nix": "serokell-nix",
@@ -313,9 +325,7 @@
     },
     "serokell-nix": {
       "inputs": {
-        "deploy-rs": [
+        "deploy-rs": "deploy-rs",
-          "deploy-rs"
-        ],
         "flake-compat": "flake-compat_3",
         "flake-utils": "flake-utils_2",
         "gitignore-nix": "gitignore-nix",
@@ -370,21 +380,6 @@
       }
     },
     "utils_2": {
-      "locked": {
-        "lastModified": 1648297722,
-        "narHash": "sha256-W+qlPsiZd8F3XkzXOzAoR+mpFqzm3ekQkJNa+PIh1BQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "0f8662f1319ad6abf89b3380dd2722369fc51ade",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "utils_3": {
       "inputs": {
         "flake-utils": "flake-utils"
       },
@@ -402,6 +397,21 @@
         "type": "github"
       }
     },
+    "utils_3": {
+      "locked": {
+        "lastModified": 1648297722,
+        "narHash": "sha256-W+qlPsiZd8F3XkzXOzAoR+mpFqzm3ekQkJNa+PIh1BQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "0f8662f1319ad6abf89b3380dd2722369fc51ade",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "vault-secrets": {
       "inputs": {
         "flake-compat": "flake-compat_4",

flake.nix

@@ -8,15 +8,11 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 
-    deploy-rs.url = "github:serokell/deploy-rs";
-    deploy-rs.inputs.nixpkgs.follows = "nixpkgs";
-
     colmena.url = "github:zhaofengli/colmena";
     colmena.inputs.nixpkgs.follows = "nixpkgs";
 
     serokell-nix.url = "github:serokell/serokell.nix";
     serokell-nix.inputs.nixpkgs.follows = "nixpkgs";
-    serokell-nix.inputs.deploy-rs.follows = "deploy-rs";
 
     vault-secrets.url = "github:serokell/vault-secrets";
     vault-secrets.inputs.nixpkgs.follows = "nixpkgs";
@@ -26,87 +22,73 @@
   };
 
   outputs =
-    { self, nixpkgs, deploy-rs, vault-secrets, serokell-nix, ... }@inputs:
+    { self, nixpkgs, vault-secrets, serokell-nix, minecraft-servers, colmena, ... }@inputs:
     let
       inherit (nixpkgs) lib;
-      inherit (builtins) filter mapAttrs;
+      inherit (builtins) filter mapAttrs attrValues concatLists;
       system = "x86_64-linux";
-      hosts = import ./hosts.nix;
+      # import and add location qualifier to all hosts
+      hosts = mapAttrs (location: lhosts: map ({ tags ? [ ], ... }@x: x // { tags = [ location ] ++ tags; inherit location; }) lhosts) (import ./nixos/hosts);
+      # flatten hosts to single list
+      flat_hosts = concatLists (attrValues hosts);
+      # Filter all nixos host definitions that are actual nix machines
+      nixHosts = filter ({ nix ? true, ... }: nix) flat_hosts;
+      # Define args each module gets access to (access to hosts is useful for DNS/DHCP)
+      specialArgs = { inherit hosts flat_hosts inputs; };
 
-      # Create a nixosConfiguration based on a foldername (nixname) and if the host is an LXC container or a VM.
+      # Resolve imports based on a foldername (nixname) and if the host is an LXC container or a VM.
-      mkConfig = { hostname, profile ? hostname, lxc ? true, ... }: {
+      resolveImports = { hostname, location, profile ? hostname, lxc ? true, ... }: [
-        "${profile}" = lib.nixosSystem {
+        ./nixos/common
-          inherit system;
+        "${./.}/nixos/hosts/${location}/${profile}/configuration.nix"
-          modules = [
+      ] ++ (if lxc then [
-            ./nixos/common
+        "${nixpkgs}/nixos/modules/virtualisation/lxc-container.nix"
-            "${./.}/nixos/hosts/${profile}/configuration.nix"
+        ./nixos/common/generic-lxc.nix
-          ] ++ (if lxc then [
+      ]
-            "${nixpkgs}/nixos/modules/virtualisation/lxc-container.nix"
+      else [ ./nixos/common/generic-vm.nix ]);
-            ./nixos/common/generic-lxc.nix
+
-          ] else
+      mkConfig = { hostname, ... }@host: {
-            [ ./nixos/common/generic-vm.nix ]);
+        "${hostname}" = lib.nixosSystem {
-          specialArgs = { inherit hosts inputs; };
+          inherit system specialArgs;
+          modules = resolveImports host;
         };
       };
 
-      # Same as above, but for the nodes part of deploy.
+      mkColmenaHost = { ip, hostname, tags, location, ... }@host: {
-      mkDeploy = { ip, hostname, profile ? hostname, ... }: {
         "${hostname}" = {
-          hostname = ip;
+          imports = resolveImports host;
-          fastConnection = true;
+          networking = {
-          profiles.system = {
+            hostName = hostname;
-            user = "root";
+            domain = location;
-            path = deploy-rs.lib.${system}.activate.nixos self.nixosConfigurations.${profile};
+          };
+          deployment = {
+            inherit tags;
+            targetHost = ip;
+            targetUser = null; # Defaults to $USER
           };
         };
       };
 
-      # Generates hosts.auto.tfvars.json for Terraform
-      genTFVars =
-        let
-          hostToVar = z@{ hostname, mac, ... }: {
-            "${hostname}" = { inherit mac; };
-          };
-          hostSet = lib.foldr (el: acc: acc // hostToVar el) { } hosts;
-          json = builtins.toJSON { hosts = hostSet; };
-        in
-        pkgs.writeScriptBin "gen-tf-vars" ''
-          echo '${json}' | ${pkgs.jq}/bin/jq > terraform/hosts.auto.tfvars.json;
-          echo "Generated Terraform Variables";
-        '';
-
-      # Import all nixos host definitions that are actual nix machines
-      nixHosts = filter ({ nix ? true, ... }: nix) hosts;
-
       pkgs = serokell-nix.lib.pkgsWith nixpkgs.legacyPackages.${system} [ vault-secrets.overlay ];
-
     in
     {
-      # Make the config and deploy sets
+      # Make the nixosConfigurations, mostly for vault-secrets
       nixosConfigurations = lib.foldr (el: acc: acc // mkConfig el) { } nixHosts;
-      deploy.nodes = lib.foldr (el: acc: acc // mkDeploy el) { } nixHosts;
 
-
+      # Make the coleman configuration
-      apps.${system} = rec {
+      colmena = lib.foldr (el: acc: acc // mkColmenaHost el)
-        default = deploy;
+        {
-        deploy = {
+          meta = {
-          type = "app";
+            nixpkgs = import nixpkgs {
-          program = "${deploy-rs.packages.${system}.deploy-rs}/bin/deploy";
+              inherit system;
-        };
+              overlays = [
-        vault-push-approles = {
+                (import ./nixos/pkgs)
-          type = "app";
+                minecraft-servers.overlays.default
-          program = "${pkgs.vault-push-approles self}/bin/vault-push-approles";
+              ];
-        };
+            };
-        vault-push-approle-envs = {
+            inherit specialArgs;
-          type = "app";
+          };
-          program =
+        }
-            "${pkgs.vault-push-approle-envs self}/bin/vault-push-approle-envs";
+        nixHosts;
-        };
-        tfvars = {
-          type = "app";
-          program = "${genTFVars}/bin/gen-tf-vars";
-        };
-      };
 
       # Use by running `nix develop`
       devShells.${system}.default = pkgs.mkShell {
@@ -114,7 +96,7 @@
         # This only support bash so just execute zsh in bash as a workaround :/
         shellHook = "zsh; exit $?";
         buildInputs = with pkgs; [
-          deploy-rs.packages.${system}.deploy-rs
+          colmena.packages.x86_64-linux.colmena
           fluxcd
           k9s
           kubectl
@@ -123,17 +105,9 @@
           nixfmt
           nixUnstable
           vault
-          # (vault-push-approles self { })
+          (vault-push-approle-envs self)
-          # (vault-push-approle-envs self { })
+          (vault-push-approle-approles self)
-          genTFVars
         ];
       };
-
-      # Filter out non-system checks: https://github.com/NixOS/nixpkgs/issues/175875#issuecomment-1152996862
-      checks = lib.filterAttrs
-        (a: _: a == system)
-        (builtins.mapAttrs
-          (system: deployLib: deployLib.deployChecks self.deploy)
-          deploy-rs.lib);
     };
 }

nixos/common/default.nix

@@ -1,4 +1,4 @@
-{ config, inputs, pkgs, ... }:
+{ config, lib, pkgs, inputs, ... }:
 
 {
   imports = [
@@ -24,12 +24,19 @@
         "https://cachix.cachix.org"
         "https://nix-community.cachix.org"
         "https://nixpkgs-review-bot.cachix.org"
+        "https://colmena.cachix.org"
       ];
       trusted-public-keys = [
         "cachix.cachix.org-1:eWNHQldwUO7G2VkjpnjDbWwy4KQ/HNxht7H4SSoMckM="
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
         "nixpkgs-review-bot.cachix.org-1:eppgiDjPk7Hkzzz7XlUesk3rcEHqNDozGOrcLc8IqwE="
+        "colmena.cachix.org-1:7BzpDnjjH8ki2CT3f6GdOk7QAzPOl+1t3LvTLXqYcSg="
       ];
+    # Also use zsh for root;
+    };
+    optimise = {
+      automatic = true;
+      dates = [ "weekly" ];
     };
     extraOptions = ''
       experimental-features = nix-command flakes
@@ -37,10 +44,6 @@
   };
 
   nixpkgs.config.allowUnfree = true;
-  nixpkgs.overlays = [
-    (import ../pkgs)
-    inputs.minecraft-servers.overlays.default
-  ];
 
   # Limit the systemd journal to 100 MB of disk or the
   # last 7 days of logs, whichever happens first.
@@ -56,7 +59,7 @@
     permitRootLogin = "no";
   };
 
-  vault-secrets = {
+  vault-secrets = lib.mkIf (config.networking.domain == "olympus") {
     vaultPrefix = "secrets/nixos";
     vaultAddress = "http://vault.olympus:8200/";
     approlePrefix = "olympus-${config.networking.hostName}";

nixos/common/users/default.nix

@@ -48,13 +48,13 @@
     ];
 
     # Make me admin
-    extraGroups = [ "wheel" ];
+    extraGroups = [ "systemd-journal" "wheel" ];
   };
 
   # Configure the root account
   users.extraUsers.root = {
     # Allow my SSH keys for logging in as root.
-    openssh.authorizedKeys.keys = config.users.users.victor.openssh.authorizedKeys.keys;
+    openssh.authorizedKeys.keys = config.users.extraUsers.victor.openssh.authorizedKeys.keys;
     # Also use zsh for root
     shell = pkgs.zsh;
   };

nixos/hosts/default.nix

@@ -0,0 +1,4 @@
+{
+  hades = import ./hades;
+  olympus = import ./olympus;
+}

nixos/hosts/hades/default.nix

@@ -0,0 +1 @@
+[]

nixos/hosts/olympus/_template/configuration.nix

@@ -7,8 +7,6 @@
 {
   imports = [ ];
 
-  networking.hostName = "template";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/bastion/configuration.nix

@@ -28,8 +28,6 @@ in {
   boot.loader.grub.version = 2;
   boot.loader.grub.device = "/dev/sda";
 
-  networking.hostName = "bastion";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave
@@ -45,7 +43,6 @@ in {
   # Additional packages
   environment.systemPackages = with pkgs; [
     binutils
-    checkov
     fix-vscode
     fluxcd
     k9s

nixos/hosts/olympus/database/configuration.nix

@@ -9,8 +9,6 @@ in
 {
   imports = [ ];
 
-  networking.hostName = "database";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/default.nix

@@ -46,6 +46,7 @@
     ip = "10.42.42.9";
     ip6 = "2001:41f0:9639:1:68c2:89ff:fe85:cfa6";
     mac = "6A:C2:89:85:CF:A6";
+    tags = [ "web" ];
   }
   {
     hostname = "k3s-node1";
@@ -97,7 +98,6 @@
     hostname = "minecraft";
     ip = "10.42.42.21";
     mac = "EA:30:73:E4:B6:69";
-    nix = false;
   }
   {
     hostname = "gitea";

nixos/hosts/olympus/dhcp/configuration.nix

@@ -5,11 +5,12 @@ let
     hostName = hostname;
     ipAddress = ip;
   };
+  localDomain = config.networking.domain;
+  hosts' = hosts.${localDomain};
 in {
   imports = [ ];
 
   networking = {
-    hostName = "dhcp";
     defaultGateway = "10.42.42.1";
     nameservers = [ "10.42.42.15" "10.42.42.16" ];
     interfaces.eth0 = {
@@ -41,12 +42,12 @@ in {
       option broadcast-address 10.42.43.255;
       option routers 10.42.42.1;
       option domain-name-servers 10.42.42.15, 10.42.42.16;
-      option domain-name "olympus";
+      option domain-name "${localDomain}";
-      option domain-search "olympus";
+      option domain-search "${localDomain}";
       subnet 10.42.42.0 netmask 255.255.254.0 {
         range 10.42.43.1 10.42.43.254;
       }
     '';
-    machines = map hostToDhcp hosts;
+    machines = map hostToDhcp hosts';
   };
 }

nixos/hosts/olympus/dns/configuration.nix

@@ -1,18 +1,18 @@
-{ config, pkgs, hosts, ... }:
+{ config, pkgs, hosts, flat_hosts, ... }:
 let
-  inherit (builtins) filter hasAttr;
+  inherit (builtins) filter hasAttr attrNames;
-  localdomain = "olympus";
+  hosts' = flat_hosts;
-  ipv6Hosts = filter (hasAttr "ip6") hosts;
+  domains = attrNames hosts;
 
-  localData = { hostname, ip, ... }: ''"${hostname}.${localdomain}. A ${ip}"'';
+  ipv6Hosts = filter (hasAttr "ip6") hosts';
-  local6Data = { hostname, ip6, ... }: ''"${hostname}.${localdomain}. AAAA ${ip6}"'';
+
-  ptrData = { hostname, ip, ... }: ''"${ip} ${hostname}.${localdomain}"'';
+  localData = { hostname, location, ip, ... }: ''"${hostname}.${location}. A ${ip}"'';
-  ptr6Data = { hostname, ip6, ... }: ''"${ip6} ${hostname}.${localdomain}"'';
+  local6Data = { hostname, location, ip6, ... }: ''"${hostname}.${location}. AAAA ${ip6}"'';
+  ptrData = { hostname, location, ip, ... }: ''"${ip} ${hostname}.${location}"'';
+  ptr6Data = { hostname, location, ip6, ... }: ''"${ip6} ${hostname}.${location}"'';
 in {
   imports = [ ];
 
-  networking.hostName = "dns";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave
@@ -37,15 +37,16 @@ in {
         interface-automatic = "yes";
         interface = [ "0.0.0.0" "::0" ];
 
-        local-zone = ''"${localdomain}." transparent'';
+        local-zone = map (localdomain: ''"${localdomain}}." transparent'') domains;
-        local-data = (map localData hosts) ++ (map local6Data ipv6Hosts);
+        local-data = (map localData hosts') ++ (map local6Data ipv6Hosts);
-        local-data-ptr = (map ptrData hosts) ++ (map ptr6Data ipv6Hosts);
+        local-data-ptr = (map ptrData hosts') ++ (map ptr6Data ipv6Hosts);
 
         access-control = [
           "127.0.0.1/32 allow_snoop"
           "::1 allow_snoop"
           "10.42.0.0/16 allow"
           "127.0.0.0/8 allow"
+          "192.168.0.0/23 allow"
           "192.168.2.0/24 allow"
           "::1/128 allow"
         ];

nixos/hosts/olympus/gitea/configuration.nix

@@ -6,8 +6,6 @@
 {
   imports = [ ];
 
-  networking.hostName = "gitea";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/hedgedoc/configuration.nix

@@ -11,8 +11,6 @@ in
 {
   imports = [ ];
 
-  networking.hostName = "hedgedoc";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/k3s/configuration.nix

@@ -14,8 +14,6 @@
   boot.kernel.sysctl."fs.inotify.max_user_instances" = 2147483647; # INT_MAX, dynamically limited based on available memory
   boot.kernel.sysctl."fs.inotify.max_user_watches" = 1048576;
 
-  networking.hostName = "k3s-node1";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/minecraft/configuration.nix

@@ -6,8 +6,6 @@
 {
   imports = [ ];
 
-  networking.hostName = "minecraft";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave
@@ -24,7 +22,7 @@
   networking.firewall.allowedTCPPorts = [ ];
 
   services.minecraft-server = {
-    enable = true;
+    enable = false;
     package = pkgs.minecraftServers.purpur_1_18;
     jvmOpts = "--add-modules=jdk.incubator.vector -Xmx2048M -Xms2048M";
 

nixos/hosts/olympus/minio/configuration.nix

@@ -10,8 +10,6 @@ let
 in {
   imports = [ ];
 
-  networking.hostName = "minio";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/mosquitto/configuration.nix

@@ -8,8 +8,6 @@ in
 {
   imports = [ ];
 
-  networking.hostName = "mosquitto";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/nginx/configuration.nix

@@ -24,8 +24,6 @@ let
   '';
 in
 {
-  networking.hostName = "nginx";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/synapse/configuration.nix

@@ -11,8 +11,6 @@ in
 {
   imports = [ ];
 
-  networking.hostName = "synapse";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/unifi/configuration.nix

@@ -7,8 +7,6 @@
 {
   imports = [ ];
 
-  networking.hostName = "unifi";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/vault/configuration.nix

@@ -5,8 +5,6 @@
 { config, pkgs, ... }:
 let port = 8200;
 in {
-  networking.hostName = "vault";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/victoriametrics/configuration.nix

@@ -10,8 +10,6 @@ in
 {
   imports = [ ];
 
-  networking.hostName = "victoriametrics";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

nixos/hosts/olympus/wireguard/configuration.nix

@@ -7,8 +7,6 @@ let vs = config.vault-secrets.secrets; in
 {
   imports = [ ];
 
-  networking.hostName = "wireguard";
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave