fc614c37c6
most modules can be evaluated for their documentation in a very restricted environment that doesn't include all of nixpkgs. this evaluation can then be cached and reused for subsequent builds, merging only documentation that has changed into the cached set. since nixos ships with a large number of modules of which only a few are used in any given config this can save evaluation a huge percentage of nixos options available in any given config. in tests of this caching, despite having to copy most of nixos/, saves about 80% of the time needed to build the system manual, or about two second on the machine used for testing. build time for a full system config shrank from 9.4s to 7.4s, while turning documentation off entirely shortened the build to 7.1s.
152 lines
5 KiB
Nix
152 lines
5 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.powerdns-admin;
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configText = ''
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${cfg.config}
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''
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+ optionalString (cfg.secretKeyFile != null) ''
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with open('${cfg.secretKeyFile}') as file:
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SECRET_KEY = file.read()
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''
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+ optionalString (cfg.saltFile != null) ''
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with open('${cfg.saltFile}') as file:
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SALT = file.read()
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'';
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in
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{
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options.services.powerdns-admin = {
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enable = mkEnableOption "the PowerDNS web interface";
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extraArgs = mkOption {
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type = types.listOf types.str;
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default = [ ];
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example = literalExpression ''
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[ "-b" "127.0.0.1:8000" ]
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'';
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description = ''
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Extra arguments passed to powerdns-admin.
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'';
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};
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config = mkOption {
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type = types.str;
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default = "";
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example = ''
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BIND_ADDRESS = '127.0.0.1'
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PORT = 8000
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SQLALCHEMY_DATABASE_URI = 'postgresql://powerdnsadmin@/powerdnsadmin?host=/run/postgresql'
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'';
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description = ''
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Configuration python file.
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See <link xlink:href="https://github.com/ngoduykhanh/PowerDNS-Admin/blob/v${pkgs.powerdns-admin.version}/configs/development.py">the example configuration</link>
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for options.
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'';
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};
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secretKeyFile = mkOption {
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type = types.nullOr types.path;
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example = "/etc/powerdns-admin/secret";
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description = ''
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The secret used to create cookies.
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This needs to be set, otherwise the default is used and everyone can forge valid login cookies.
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Set this to null to ignore this setting and configure it through another way.
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'';
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};
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saltFile = mkOption {
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type = types.nullOr types.path;
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example = "/etc/powerdns-admin/salt";
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description = ''
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The salt used for serialization.
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This should be set, otherwise the default is used.
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Set this to null to ignore this setting and configure it through another way.
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'';
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};
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};
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config = mkIf cfg.enable {
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systemd.services.powerdns-admin = {
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description = "PowerDNS web interface";
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wantedBy = [ "multi-user.target" ];
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after = [ "networking.target" ];
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environment.FLASK_CONF = builtins.toFile "powerdns-admin-config.py" configText;
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environment.PYTHONPATH = pkgs.powerdns-admin.pythonPath;
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serviceConfig = {
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ExecStart = "${pkgs.powerdns-admin}/bin/powerdns-admin --pid /run/powerdns-admin/pid ${escapeShellArgs cfg.extraArgs}";
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ExecStartPre = "${pkgs.coreutils}/bin/env FLASK_APP=${pkgs.powerdns-admin}/share/powerdnsadmin/__init__.py ${pkgs.python3Packages.flask}/bin/flask db upgrade -d ${pkgs.powerdns-admin}/share/migrations";
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
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ExecStop = "${pkgs.coreutils}/bin/kill -TERM $MAINPID";
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PIDFile = "/run/powerdns-admin/pid";
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RuntimeDirectory = "powerdns-admin";
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User = "powerdnsadmin";
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Group = "powerdnsadmin";
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AmbientCapabilities = "CAP_NET_BIND_SERVICE";
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BindReadOnlyPaths = [
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"/nix/store"
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"-/etc/resolv.conf"
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"-/etc/nsswitch.conf"
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"-/etc/hosts"
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"-/etc/localtime"
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]
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++ (optional (cfg.secretKeyFile != null) cfg.secretKeyFile)
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++ (optional (cfg.saltFile != null) cfg.saltFile);
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CapabilityBoundingSet = "CAP_NET_BIND_SERVICE";
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# ProtectClock= adds DeviceAllow=char-rtc r
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DeviceAllow = "";
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# Implies ProtectSystem=strict, which re-mounts all paths
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#DynamicUser = true;
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LockPersonality = true;
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MemoryDenyWriteExecute = true;
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NoNewPrivileges = true;
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PrivateDevices = true;
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PrivateMounts = true;
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# Needs to start a server
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#PrivateNetwork = true;
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PrivateTmp = true;
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PrivateUsers = true;
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ProcSubset = "pid";
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ProtectClock = true;
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ProtectHome = true;
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ProtectHostname = true;
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# Would re-mount paths ignored by temporary root
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#ProtectSystem = "strict";
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ProtectControlGroups = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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ProtectProc = "invisible";
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RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
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RestrictNamespaces = true;
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RestrictRealtime = true;
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RestrictSUIDSGID = true;
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SystemCallArchitectures = "native";
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# gunicorn needs setuid
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SystemCallFilter = [
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"@system-service"
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"~@privileged @resources @keyring"
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# These got removed by the line above but are needed
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"@setuid @chown"
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];
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TemporaryFileSystem = "/:ro";
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# Does not work well with the temporary root
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#UMask = "0066";
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};
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};
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users.groups.powerdnsadmin = { };
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users.users.powerdnsadmin = {
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description = "PowerDNS web interface user";
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isSystemUser = true;
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group = "powerdnsadmin";
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};
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};
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# uses attributes of the linked package
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meta.buildDocsInSandbox = false;
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}
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