WIP

base.nix

@@ -133,46 +133,6 @@
     extraConfig = "return 444;";
   };
 
-  # source: https://github.com/logrotate/logrotate/blob/main/examples/logrotate.service
-  systemd.services.logrotate = {
-    documentation = [ "man:logrotate(8)" "man:logrotate.conf(5)" ];
-    unitConfig.RequiresMountsFor = "/var/log";
-    serviceConfig = {
-      Nice = 19;
-      IOSchedulingClass = "best-effort";
-      IOSchedulingPriority = 7;
-
-      ReadWritePaths = [ "/var/log" ];
-
-      AmbientCapabilities = [ "" ];
-      CapabilityBoundingSet = [ "" ];
-      DeviceAllow = [ "" ];
-      LockPersonality = true;
-      MemoryDenyWriteExecute = true;
-      NoNewPrivileges = true; # disable for third party rotate scripts
-      PrivateDevices = true;
-      PrivateNetwork = true; # disable for mail delivery
-      PrivateTmp = true;
-      ProtectClock = true;
-      ProtectControlGroups = true;
-      ProtectHome = true; # disable for userdir logs
-      ProtectHostname = true;
-      ProtectKernelLogs = true;
-      ProtectKernelModules = true;
-      ProtectKernelTunables = true;
-      ProtectProc = "invisible";
-      ProtectSystem = "full";
-      RestrictNamespaces = true;
-      RestrictRealtime = true;
-      RestrictSUIDSGID = true; # disable for creating setgid directories
-      SocketBindDeny = [ "any" ];
-      SystemCallArchitectures = "native";
-      SystemCallFilter = [
-        "@system-service"
-      ];
-    };
-  };
-
   networking.firewall.allowedTCPPorts = lib.mkIf config.services.nginx.enable [ 80 443 ];
 
   security.acme = {

flake.lock

@@ -1,5 +1,26 @@
 {
   "nodes": {
+    "dibbler": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1693682284,
+        "narHash": "sha256-FvVCkHH80YyUiqQlnGNr49rZRBniihF6YRpytguEkFQ=",
+        "ref": "refs/heads/master",
+        "rev": "8a6a0c12ba37e239684d2de1be12fd73903cfb2c",
+        "revCount": 193,
+        "type": "git",
+        "url": "https://git.pvv.ntnu.no/Projects/dibbler.git"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://git.pvv.ntnu.no/Projects/dibbler.git"
+      }
+    },
     "disko": {
       "inputs": {
         "nixpkgs": [
@@ -22,7 +43,7 @@
     },
     "fix-python": {
       "inputs": {
-        "flake-utils": "flake-utils",
+        "flake-utils": "flake-utils_2",
         "nixpkgs": [
           "grzegorz",
           "nixpkgs"
@@ -46,6 +67,24 @@
       "inputs": {
         "systems": "systems"
       },
+      "locked": {
+        "lastModified": 1692799911,
+        "narHash": "sha256-3eihraek4qL744EvQXsK1Ha6C3CR7nnT8X2qWap4RNk=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "f9e7cf818399d17d347f847525c5a5a8032e4e44",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
       "locked": {
         "lastModified": 1689068808,
         "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
@@ -229,6 +268,7 @@
     },
     "root": {
       "inputs": {
+        "dibbler": "dibbler",
         "disko": "disko",
         "grzegorz": "grzegorz",
         "grzegorz-clients": "grzegorz-clients",
@@ -276,6 +316,21 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -17,6 +17,9 @@
     pvv-calendar-bot.url = "git+https://git.pvv.ntnu.no/Projects/calendar-bot.git";
     pvv-calendar-bot.inputs.nixpkgs.follows = "nixpkgs";
 
+    dibbler.url = "git+https://git.pvv.ntnu.no/Projects/dibbler.git";
+    dibbler.inputs.nixpkgs.follows = "nixpkgs";
+
     matrix-next.url = "github:dali99/nixos-matrix-modules/v0.6.0";
     matrix-next.inputs.nixpkgs.follows = "nixpkgs";
 
@@ -124,6 +127,13 @@
         ];
       };
       buskerud = stableNixosConfig "buskerud" { };
+      skrott = stableNixosConfig "skrott" {
+        system = "aarch64-linux";
+        modules = [
+          (nixpkgs + "/nixos/modules/installer/sd-card/sd-image-aarch64.nix")
+          inputs.dibbler.nixosModules.default
+        ];
+      };
     };
 
     nixosModules = {
@@ -147,6 +157,7 @@
 
         simplesamlphp = pkgs.callPackage ./packages/simplesamlphp { };
 
+        skrot = self.nixosConfigurations.skrott.config.system.build.sdImage;
       } //
       (nixlib.pipe null [
         (_: pkgs.callPackage ./packages/mediawiki-extensions { })

hosts/bekkalokk/configuration.nix

@@ -11,7 +11,6 @@
     ./services/kerberos
     ./services/mediawiki
     ./services/nginx.nix
-    ./services/phpfpm.nix
     ./services/vaultwarden.nix
     ./services/webmail
     ./services/website

hosts/bekkalokk/services/gitea/default.nix

@@ -6,8 +6,7 @@ let
 in {
   imports = [
     ./ci.nix
-    ./import-users
+    ./import-users.nix
-    ./web-secret-provider
   ];
 
   sops.secrets = {

hosts/bekkalokk/services/gitea/web-secret-provider/default.nix

@@ -1,114 +0,0 @@
-{ config, pkgs, lib, ... }:
-let
-  organizations = [
-    "Drift"
-    "Projects"
-    "Kurs"
-  ];
-
-  giteaCfg = config.services.gitea;
-
-  giteaWebSecretProviderScript = pkgs.writers.writePython3 "gitea-web-secret-provider" {
-    libraries = with pkgs.python3Packages; [ requests ];
-    flakeIgnore = [
-      "E501" # Line over 80 chars lol
-      "E201" # "whitespace after {"
-      "E202" # "whitespace after }"
-      "E251" # unexpected spaces around keyword / parameter equals
-      "W391" # Newline at end of file
-    ];
-    makeWrapperArgs = [
-      "--prefix PATH : ${(lib.makeBinPath [ pkgs.openssh ])}"
-    ];
-  } (builtins.readFile ./gitea-web-secret-provider.py);
-in
-{
-  users.groups."gitea-web" = { };
-  users.users."gitea-web" = {
-    group = "gitea-web";
-    isSystemUser = true;
-  };
-
-  sops.secrets."gitea/web-secret-provider/token" = {
-    owner = "gitea-web";
-    group = "gitea-web";
-    restartUnits = [
-      "gitea-web-secret-provider@"
-    ] ++ (map (org: "gitea-web-secret-provider@${org}") organizations);
-  };
-
-  systemd.slices.system-giteaweb = {
-    description = "Gitea web directories";
-  };
-
-  # https://www.freedesktop.org/software/systemd/man/latest/systemd.unit.html#Specifiers
-  # %i - instance name (after the @)
-  # %d - secrets directory
-  systemd.services."gitea-web-secret-provider@" = {
-    description = "Ensure all repos in %i has an SSH key to push web content";
-    requires = [ "gitea.service" "network.target" ];
-    serviceConfig = {
-      Slice = "system-giteaweb.slice";
-      Type = "oneshot";
-      ExecStart = let
-        args = lib.cli.toGNUCommandLineShell { } {
-          org = "%i";
-          token-path = "%d/token";
-          api-url = "${giteaCfg.settings.server.ROOT_URL}api/v1";
-          key-dir = "/var/lib/gitea-web/keys/%i";
-          authorized-keys-path = "/var/lib/gitea-web/authorized_keys.d/%i";
-          rrsync-script = pkgs.writeShellScript "rrsync-chown" ''
-            ${lib.getExe pkgs.rrsync} -wo "$1"
-            ${pkgs.coreutils}/bin/chown -R gitea-web:gitea-web "$1"
-          '';
-          web-dir = "/var/lib/gitea-web/web";
-        };
-      in "${giteaWebSecretProviderScript} ${args}";
-
-      User = "gitea-web";
-      Group = "gitea-web";
-
-      StateDirectory = "gitea-web";
-      StateDirectoryMode = "0750";
-      LoadCredential = [
-        "token:${config.sops.secrets."gitea/web-secret-provider/token".path}"
-      ];
-
-      NoNewPrivileges = true;
-      PrivateTmp = true;
-      PrivateDevices = true;
-      ProtectSystem = true;
-      ProtectHome = true;
-      ProtectControlGroups = true;
-      ProtectKernelModules = true;
-      ProtectKernelTunables = true;
-      RestrictAddressFamilies = [ "AF_INET" "AF_INET6" ];
-      RestrictRealtime = true;
-      RestrictSUIDSGID = true;
-      MemoryDenyWriteExecute = true;
-      LockPersonality = true;
-    };
-  };
-
-  systemd.timers."gitea-web-secret-provider@" = {
-    description = "Ensure all repos in %i has an SSH key to push web content";
-    timerConfig = {
-      RandomizedDelaySec = "1h";
-      Persistent = true;
-      Unit = "gitea-web-secret-provider@%i.service";
-      OnCalendar = "daily";
-    };
-  };
-
-  systemd.targets.timers.wants = map (org: "gitea-web-secret-provider@${org}.timer") organizations;
-
-  services.openssh.authorizedKeysFiles = map (org: "/var/lib/gitea-web/authorized_keys.d/${org}") organizations;
-
-  users.users.nginx.extraGroups = [ "gitea-web" ];
-  services.nginx.virtualHosts."pages.pvv.ntnu.no" = {
-    kTLS = true;
-    forceSSL = true;
-    enableACME = true;
-    root = "/var/lib/gitea-web/web";
-  };
-}

hosts/bekkalokk/services/gitea/web-secret-provider/gitea-web-secret-provider.py

@@ -1,112 +0,0 @@
-import argparse
-import hashlib
-import os
-import requests
-import subprocess
-from pathlib import Path
-
-
-def parse_args():
-    parser = argparse.ArgumentParser(description="Generate SSH keys for Gitea repositories and add them as secrets")
-    parser.add_argument("--org", required=True, type=str, help="The organization to generate keys for")
-    parser.add_argument("--token-path", metavar='PATH', required=True, type=Path, help="Path to a file containing the Gitea API token")
-    parser.add_argument("--api-url", metavar='URL', type=str, help="The URL of the Gitea API", default="https://git.pvv.ntnu.no/api/v1")
-    parser.add_argument("--key-dir", metavar='PATH', type=Path, help="The directory to store the generated keys in", default="/run/gitea-web-secret-provider")
-    parser.add_argument("--authorized-keys-path", metavar='PATH', type=Path, help="The path to the resulting authorized_keys file", default="/etc/ssh/authorized_keys.d/gitea-web-secret-provider")
-    parser.add_argument("--rrsync-script", metavar='PATH', type=Path, help="The path to a rrsync script, taking the destination path as its single argument")
-    parser.add_argument("--web-dir", metavar='PATH', type=Path, help="The directory to sync the repositories to", default="/var/www")
-    parser.add_argument("--force", action="store_true", help="Overwrite existing keys")
-    return parser.parse_args()
-
-
-def add_secret(args: argparse.Namespace, token: str, repo: str, name: str, secret: str):
-    result = requests.put(
-        f"{args.api_url}/repos/{args.org}/{repo}/actions/secrets/{name}",
-        json = { 'data': secret },
-        headers = { 'Authorization': 'token ' + token },
-    )
-    if result.status_code not in (201, 204):
-        raise Exception(f"Failed to add secret: {result.json()}")
-
-
-def get_org_repo_list(args: argparse.Namespace, token: str):
-    result = requests.get(
-        f"{args.api_url}/orgs/{args.org}/repos",
-        headers = { 'Authorization': 'token ' + token },
-    )
-    return [repo["name"] for repo in result.json()]
-
-
-def generate_ssh_key(args: argparse.Namespace, repository: str):
-    keyname = hashlib.sha256(args.org.encode() + repository.encode()).hexdigest()
-    key_path = args.key_dir / keyname
-    if not key_path.is_file() or args.force:
-        subprocess.run(
-            [
-                "ssh-keygen",
-                *("-t", "ed25519"),
-                *("-f", key_path),
-                *("-N", ""),
-                *("-C", f"{args.org}/{repository}"),
-            ],
-            check=True,
-            stdin=subprocess.DEVNULL,
-            stdout=subprocess.PIPE,
-            stderr=subprocess.PIPE,
-        )
-        print(f"Generated SSH key for `{args.org}/{repository}`")
-
-    with open(key_path, "r") as f:
-        private_key = f.read()
-
-    pub_key_path = args.key_dir / (keyname + '.pub')
-    with open(pub_key_path, "r") as f:
-        public_key = f.read()
-
-    return private_key, public_key
-
-
-SSH_OPTS = ",".join([
-    "restrict",
-    "no-agent-forwarding",
-    "no-port-forwarding",
-    "no-pty",
-    "no-X11-forwarding",
-])
-
-
-def generate_authorized_keys(args: argparse.Namespace, repo_public_keys: list[tuple[str, str]]):
-    lines = []
-    for repo, public_key in repo_public_keys:
-        command = f"{args.rrsync_script} {args.web_dir}/{args.org}/{repo}"
-        lines.append(f'command="{command}",{SSH_OPTS} {public_key}')
-
-    with open(args.authorized_keys_path, "w") as f:
-        f.writelines(lines)
-
-
-def main():
-    args = parse_args()
-
-    with open(args.token_path, "r") as f:
-        token = f.read().strip()
-
-    os.makedirs(args.key_dir, 0o700, exist_ok=True)
-    os.makedirs(args.authorized_keys_path.parent, 0o700, exist_ok=True)
-
-    repos = get_org_repo_list(args, token)
-    print(f'Found {len(repos)} repositories in `{args.org}`')
-
-    repo_public_keys = []
-    for repo in repos:
-        print(f"Locating key for `{args.org}/{repo}`")
-        private_key, public_key = generate_ssh_key(args, repo)
-        add_secret(args, token, repo, "WEB_SYNC_SSH_KEY", private_key)
-        repo_public_keys.append((repo, public_key))
-
-    generate_authorized_keys(args, repo_public_keys)
-    print(f"Wrote authorized_keys file to `{args.authorized_keys_path}`")
-
-
-if __name__ == "__main__":
-    main()

hosts/bekkalokk/services/phpfpm.nix

@@ -1,51 +0,0 @@
-{ lib, ... }:
-let
-  pools = map (pool: "phpfpm-${pool}") [
-    "idp"
-    "mediawiki"
-    "pvv-nettsiden"
-    "roundcube"
-    "snappymail"
-  ];
-in
-{
-  # Source: https://www.pierreblazquez.com/2023/06/17/how-to-harden-apache-php-fpm-daemons-using-systemd/
-  systemd.services = lib.genAttrs pools (_: {
-    serviceConfig = let
-      caps = [
-        "CAP_NET_BIND_SERVICE"
-        "CAP_SETGID"
-        "CAP_SETUID"
-        "CAP_CHOWN"
-        "CAP_KILL"
-        "CAP_IPC_LOCK"
-        "CAP_DAC_OVERRIDE"
-      ];
-    in {
-      AmbientCapabilities = caps;
-      CapabilityBoundingSet = caps;
-      DeviceAllow = [ "" ];
-      LockPersonality = true;
-      MemoryDenyWriteExecute = false;
-      NoNewPrivileges = true;
-      PrivateMounts = true;
-      ProtectClock = true;
-      ProtectControlGroups = true;
-      ProtectHome = true;
-      ProtectHostname = true;
-      ProtectKernelLogs = true;
-      ProtectKernelModules = true;
-      ProtectKernelTunables = true;
-      RemoveIPC = true;
-      UMask = "0077";
-      RestrictNamespaces = "~mnt";
-      RestrictRealtime = true;
-      RestrictSUIDSGID = true;
-      SystemCallArchitectures = "native";
-      KeyringMode = "private";
-      SystemCallFilter = [
-        "@system-service"
-      ];
-    };
-  });
-}

hosts/bekkalokk/services/vaultwarden.nix

@@ -65,40 +65,4 @@ in {
       proxyWebsockets = true;
     };
   };
-
-  systemd.services.vaultwarden = lib.mkIf cfg.enable {
-    serviceConfig = {
-      AmbientCapabilities = [ "" ];
-      CapabilityBoundingSet = [ "" ];
-      DeviceAllow = [ "" ];
-      LockPersonality = true;
-      NoNewPrivileges = true;
-      # MemoryDenyWriteExecute = true;
-      PrivateMounts = true;
-      PrivateUsers = true;
-      ProcSubset = "pid";
-      ProtectClock = true;
-      ProtectControlGroups = true;
-      ProtectHostname = true;
-      ProtectKernelLogs = true;
-      ProtectKernelModules = true;
-      ProtectKernelTunables = true;
-      ProtectProc = "invisible";
-      RestrictAddressFamilies = [
-        "AF_INET"
-        "AF_INET6"
-        "AF_UNIX"
-      ];
-      RemoveIPC = true;
-      RestrictNamespaces = true;
-      RestrictRealtime = true;
-      RestrictSUIDSGID = true;
-      SystemCallArchitectures = "native";
-      SystemCallFilter = [
-        "@system-service"
-        "~@privileged"
-      ];
-      UMask = "0007";
-    };
-  };
 }

hosts/bicep/services/postgres.nix

@@ -1,4 +1,7 @@
 { config, pkgs, ... }:
+let
+  sslCert = config.security.acme.certs."postgres.pvv.ntnu.no";
+in
 {
   services.postgresql = {
     enable = true;
@@ -76,16 +79,12 @@
 
   systemd.services.postgresql.serviceConfig = {
     LoadCredential = [
-      "cert:/etc/certs/postgres.crt"
+      "cert:${sslCert.directory}/cert.pem"
-      "key:/etc/certs/postgres.key"
+      "key:${sslCert.directory}/key.pem"
     ];
   };
 
-  environment.snakeoil-certs."/etc/certs/postgres" = {
+  users.groups.acme.members = [ "postgres" ];
-    owner = "postgres";
-    group = "postgres";
-    subject = "/C=NO/O=Programvareverkstedet/CN=postgres.pvv.ntnu.no/emailAddress=drift@pvv.ntnu.no";
-  };
 
   networking.firewall.allowedTCPPorts = [ 5432 ];
   networking.firewall.allowedUDPPorts = [ 5432 ];

hosts/skrott/configuration.nix

@@ -0,0 +1,10 @@
+{ lib, values, ... }: {
+  system.stateVersion = "22.05";
+
+  systemd.network.networks."30-all" = values.defaultNetworkConfig // {
+    matchConfig.Name = "eth0";
+    address = with values.hosts.skrott; [ (ipv4 + "/25") (ipv6 + "/64") ];
+  };
+
+  networking.hostName = lib.mkForce "skrot";
+}

modules/snakeoil-certs.nix

@@ -50,7 +50,7 @@ in
       serviceConfig.Type = "oneshot";
       script = let
         openssl = lib.getExe pkgs.openssl;
-      in lib.concatMapStringsSep "\n" ({ name, value }: ''
+      in lib.concatMapStringsSep "\n----------------\n" ({ name, value }: ''
         mkdir -p $(dirname "${value.certificate}") $(dirname "${value.certificateKey}")
         if ! ${openssl} x509 -checkend 86400 -noout -in ${value.certificate}
         then
@@ -69,8 +69,6 @@ in
         chown "${value.owner}:${value.group}" "${value.certificateKey}"
         chmod "${value.mode}" "${value.certificate}"
         chmod "${value.mode}" "${value.certificateKey}"
-
-        echo "\n-----------------\n"
       '') (lib.attrsToList cfg);
     };
     systemd.timers."generate-snakeoil-certs" = {

secrets/bekkalokk/bekkalokk.yaml

@@ -1,6 +1,4 @@
 gitea:
-    web-secret-provider:
-        token: ENC[AES256_GCM,data:pHmBKxrNcLifl4sjR44AGEElfdachja35Tl/InsqvBWturaeTv4R0w==,iv:emBWfXQs2VNqtpDp5iA5swNC+24AWDYYXo6nvN+Fwx4=,tag:lkhSVSs6IqhHpfDPOX0wQA==,type:str]
     password: ENC[AES256_GCM,data:hlNzdU1ope0t50/3aztyLeXjMHd2vFPpwURX+Iu8f49DOqgSnEMtV+KtLA==,iv:qljRnSnchL5cFmaUAfCH9GQYQxcy5cyWejgk1x6bFgI=,tag:tIhboFU5kZsj5oAQR3hLbw==,type:str]
     database: ENC[AES256_GCM,data:UlS33IdCEyeSvT6ngpmnkBWHuSEqsB//DT+3b7C+UwbD8UXWJlsLf1X8/w==,iv:mPRW5ldyZaHP+y/0vC2JGSLZmlkhgmkvXPk4LazkSDs=,tag:gGk6Z/nbPvzE1zG+tJC8Sw==,type:str]
     email-password: ENC[AES256_GCM,data:KRwC+aL1aPvJuXt91Oq1ttATMnFTnuUy,iv:ats8TygB/2pORkaTZzPOLufZ9UmvVAKoRcWNvYF1z6w=,tag:Do0fA+4cZ3+l7JJyu8hjBg==,type:str]
@@ -92,8 +90,8 @@ sops:
             UHpLRkdQTnhkeGlWVG9VS1hkWktyckEKAdwnA9URLYZ50lMtXrU9Q09d0L3Zfsyr
             4UsvjjdnFtsXwEZ9ZzOQrpiN0Oz24s3csw5KckDni6kslaloJZsLGg==
             -----END AGE ENCRYPTED FILE-----
-    lastmodified: "2024-08-13T19:49:24Z"
+    lastmodified: "2024-05-26T02:07:41Z"
-    mac: ENC[AES256_GCM,data:AeJ53D+8A8mHYRmVHdqhcS1ZTbqVe5gQqJsJjMk4T/ZlNX8/V4M9mqAW2FB9m/JSdj234gDu+PBHcW70ZrCqeVsoUW/ETVgUX3W2gBmBgYJiRETp8I7/eks/5YEV6vIIxQsZNP/9dZTNX4T2wD74ELl23NSTXA/6k2tyzBlTMYo=,iv:DABafHvw+5w0PHCKqLgpwmQnv0uHOTyj+s8gdnHFTZ4=,tag:SNZ7W+6zdyuuv2AB9ir8eg==,type:str]
+    mac: ENC[AES256_GCM,data:CRaJefV1zcJc6eyzyjTLgd0+Wv46VT8o4iz2YAGU+c2b/Cr97Tj290LoEO6UXTI3uFwVfzii2yZ2l+4FK3nVVriD4Cx1O/9qWcnLa5gfK30U0zof6AsJx8qtGu1t6oiPlGUCF7sT0BW9Wp8cPumrY6cZp9QbhmIDV0o0aJNUNN4=,iv:8OSYV1eG6kYlJD4ovZZhcD1GaYnmy7vHPa/+7egM1nE=,tag:OPI13rpDh2l1ViFj8TBFWg==,type:str]
     pgp:
         - created_at: "2024-08-04T00:03:28Z"
           enc: |-
@@ -116,4 +114,4 @@ sops:
             -----END PGP MESSAGE-----
           fp: F7D37890228A907440E1FD4846B9228E814A2AAC
     unencrypted_suffix: _unencrypted
-    version: 3.9.0
+    version: 3.8.1

values.nix

@@ -63,6 +63,10 @@ in rec {
       ipv4 = pvv-ipv4 231;
       ipv6 = pvv-ipv6 231;
     };
+    skrott = {
+      ipv4 = pvv-ipv4 235;
+      ipv6 = pvv-ipv6 235;
+    };
   };
 
   defaultNetworkConfig = {