643 lines
17 KiB
Nix
643 lines
17 KiB
Nix
{ lib, ... }:
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let
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inherit (lib)
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all any attrNames concatMapStringsSep concatStringsSep const filter flip
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genid_uint31 hasSuffix head isInt isString length mergeOneOption mkOption
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mkOptionType optional optionalAttrs optionals range splitString
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stringLength substring test testString typeOf;
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inherit (lib.types)
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attrsOf bool either enum int listOf nullOr path str submodule;
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in
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rec {
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host = submodule ({ config, ... }: {
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options = {
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name = mkOption {
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type = label;
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default = config._module.args.name;
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};
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cores = mkOption {
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type = uint;
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};
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nets = mkOption {
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type = attrsOf net;
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default = {};
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};
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binary-cache.pubkey = mkOption {
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type = nullOr binary-cache-pubkey;
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default = null;
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};
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ci = mkOption {
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description = ''
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If true, then the host wants to be tested by some CI system.
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See ‹stockholm/krebs/2configs/buildbot-all.nix›
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'';
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type = bool;
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default = false;
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};
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external = mkOption {
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description = ''
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Whether the host is defined externally (in contrast to being defined
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in ‹stockholm›). This is useful e.g. when legacy and/or adopted
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hosts should be part of retiolum or some other component.
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'';
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type = bool;
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default = false;
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};
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monitoring = mkOption {
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description = ''
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Whether the host should be monitored by monitoring tools like Prometheus.
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'';
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type = bool;
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default = false;
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};
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owner = mkOption {
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type = user;
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};
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extraZones = mkOption {
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default = {};
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# TODO: string is either MX, NS, A or AAAA
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type = attrsOf str;
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};
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secure = mkOption {
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type = bool;
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default = false;
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description = ''
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If true, then the host is capable of keeping secret information.
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TODO define minimum requirements for secure hosts
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'';
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};
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ssh.pubkey = mkOption {
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type = nullOr ssh-pubkey;
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default = null;
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};
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ssh.privkey = mkOption {
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type = nullOr ssh-privkey;
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default = null;
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};
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syncthing.id = mkOption {
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# TODO syncthing id type
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type = nullOr str;
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default = null;
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};
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};
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});
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net = submodule ({ config, ... }: {
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options = {
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name = mkOption {
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type = label;
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default = config._module.args.name;
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};
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via = mkOption {
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type =
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# XXX break infinite recursion when generating manuals
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if config._module.args.name == "‹name›" then
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mkOptionType {
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name = "‹net›";
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}
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else
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nullOr net;
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default = null;
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};
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addrs = mkOption {
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type = listOf (either addr str);
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default =
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optional (config.ip4 != null) config.ip4.addr ++
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optional (config.ip6 != null) config.ip6.addr;
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};
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aliases = mkOption {
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# TODO nonEmptyListOf hostname
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type = listOf hostname;
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default = [];
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};
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mac = mkOption {
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type = nullOr str;
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default = null;
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};
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ip4 = mkOption {
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type = nullOr (submodule {
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options = {
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addr = mkOption {
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type = addr4;
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};
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prefix = mkOption ({
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type = cidr4;
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} // {
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retiolum.default = "10.243.0.0/16";
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wiregrill.default = "10.244.0.0/16";
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}.${config._module.args.name} or {});
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};
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});
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default = null;
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};
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ip6 = mkOption {
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type = nullOr (submodule {
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options = {
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addr = mkOption {
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type = addr6;
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apply = lib.normalize-ip6-addr;
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};
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prefix = mkOption ({
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type = cidr6;
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} // {
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retiolum.default = "42:0::/32";
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wiregrill.default = "42:1::/32";
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}.${config._module.args.name} or {});
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};
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});
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default = null;
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};
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ssh = mkOption {
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type = submodule {
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options = {
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port = mkOption {
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type = int;
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default = 22;
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};
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};
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};
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default = {};
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};
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tinc = mkOption {
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type = let net = config; in nullOr (submodule ({ config, ... }: {
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options = {
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config = mkOption {
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type = str;
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default = concatStringsSep "\n" (
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(optionals (net.via != null)
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(map (a: "Address = ${a} ${toString config.port}") net.via.addrs))
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++
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(map (a: "Subnet = ${a}") net.addrs)
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++
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(map (a: "Subnet = ${a}") config.subnets)
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++
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[config.extraConfig]
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++
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[config.pubkey]
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++
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optional (config.weight != null) "Weight = ${toString config.weight}"
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);
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defaultText = ''
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Address = ‹addr› ‹port› # for each ‹net.via.addrs›
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Subnet = ‹addr› # for each ‹net.addrs›
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‹extraConfig›
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‹pubkey›
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'';
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};
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pubkey = mkOption {
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type = tinc-pubkey;
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};
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pubkey_ed25519 = mkOption {
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type = nullOr tinc-pubkey;
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default = null;
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};
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extraConfig = mkOption {
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description = "Extra Configuration to be appended to the hosts file";
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default = "";
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type = str;
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};
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port = mkOption {
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type = int;
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description = "tinc port to use to connect to host";
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default = 655;
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};
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subnets = mkOption {
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type = listOf cidr;
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description = "tinc subnets";
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default = [];
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};
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weight = mkOption {
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type = nullOr int;
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description = ''
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global tinc weight (latency in ms) of this particular node.
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can be set to some high value to make it unprobable to be used as router.
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if set to null, tinc will autogenerate the value based on latency.
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'';
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default = if net.via != null then null else 300;
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};
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};
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}));
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default = null;
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};
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wireguard = mkOption {
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type = nullOr (submodule ({ config, ... }: {
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options = {
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port = mkOption {
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type = int;
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description = "tinc port to use to connect to host";
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default = 51820;
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};
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pubkey = mkOption {
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type = wireguard-pubkey;
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};
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subnets = mkOption {
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type = listOf cidr;
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description = ''
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wireguard subnets,
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this defines how routing behaves for hosts that can't reach each other.
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'';
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default = [];
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};
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};
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}));
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default = null;
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};
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};
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});
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positive = mkOptionType {
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name = "positive integer";
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check = x: isInt x && x > 0;
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merge = mergeOneOption;
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};
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uint = mkOptionType {
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name = "unsigned integer";
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check = x: isInt x && x >= 0;
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merge = mergeOneOption;
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};
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secret-file = submodule ({ config, ... }: {
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options = {
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name = mkOption {
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type = pathname;
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default = config._module.args.name;
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};
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path = mkOption {
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type = absolute-pathname;
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default = "/run/keys/${config.name}";
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defaultText = "/run/keys/‹name›";
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};
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mode = mkOption {
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type = file-mode;
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default = "0400";
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};
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owner = mkOption {
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type = user;
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};
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group-name = mkOption {
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type = str;
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default = "root";
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};
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service = mkOption {
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type = systemd.unit-name;
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default = "secret-${lib.systemd.encodeName config.name}.service";
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defaultText = "secret-‹name›.service";
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};
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source-path = mkOption {
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type = str;
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default = toString <secrets> + "/${config.name}";
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defaultText = "‹secrets/‹name››";
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};
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};
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});
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source = submodule ({ config, ... }: {
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options = {
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type = let
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known-types = attrNames source-types;
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type-candidates = filter (k: config.${k} != null) known-types;
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in mkOption {
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default = if length type-candidates == 1
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then head type-candidates
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else throw "cannot determine type";
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type = enum known-types;
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};
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file = mkOption {
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apply = x:
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if absolute-pathname.check x
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then { path = x; }
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else x;
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default = null;
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type = nullOr (either absolute-pathname source-types.file);
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};
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git = mkOption {
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default = null;
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type = nullOr source-types.git;
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};
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pass = mkOption {
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default = null;
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type = nullOr source-types.pass;
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};
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pipe = mkOption {
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apply = x:
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if absolute-pathname.check x
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then { command = x; }
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else x;
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default = null;
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type = nullOr (either absolute-pathname source-types.pipe);
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};
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symlink = mkOption {
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type = nullOr (either pathname source-types.symlink);
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default = null;
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apply = x:
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if pathname.check x
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then { target = x; }
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else x;
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};
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};
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});
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source-types = {
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file = submodule {
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options = {
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path = mkOption {
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type = absolute-pathname;
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};
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};
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};
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git = submodule {
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options = {
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ref = mkOption {
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type = str; # TODO types.git.ref
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};
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url = mkOption {
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type = str; # TODO types.git.url
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};
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};
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};
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pass = submodule {
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options = {
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dir = mkOption {
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type = absolute-pathname;
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};
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name = mkOption {
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type = pathname; # TODO relative-pathname
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};
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};
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};
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pipe = submodule {
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options = {
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command = mkOption {
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type = absolute-pathname;
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};
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};
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};
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symlink = submodule {
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options = {
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target = mkOption {
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type = pathname; # TODO relative-pathname
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};
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};
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};
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};
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suffixed-str = suffs:
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mkOptionType {
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name = "string suffixed by ${concatStringsSep ", " suffs}";
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check = x: isString x && any (flip hasSuffix x) suffs;
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merge = mergeOneOption;
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};
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user = submodule ({ config, ... }: {
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options = {
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home = mkOption {
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type = absolute-pathname;
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default = "/home/${config.name}";
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defaultText = "/home/‹name›";
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};
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mail = mkOption {
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type = nullOr str;
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default = null;
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};
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name = mkOption {
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type = username;
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default = config._module.args.name;
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};
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pgp.pubkeys = mkOption {
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type = attrsOf pgp-pubkey;
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default = {};
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description = ''
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Set of user's PGP public keys.
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Modules supporting PGP may use well-known key names to define
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default values for options, in which case the well-known name
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should be documented in the respective option's description.
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'';
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};
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pubkey = mkOption {
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type = nullOr ssh-pubkey;
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default = null;
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};
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uid = mkOption {
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type = int;
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default = genid_uint31 config.name;
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defaultText = "genid_uint31 ‹name›";
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};
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};
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});
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group = submodule ({ config, ... }: {
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options = {
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name = mkOption {
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type = username;
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default = config._module.args.name;
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defaultText = "genid_uint31 ‹name›";
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};
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gid = mkOption {
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type = int;
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default = genid_uint31 config.name;
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defaultText = "genid_uint31 ‹name›";
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};
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};
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});
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addr = either addr4 addr6;
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addr4 = mkOptionType {
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name = "IPv4 address";
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check = let
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IPv4address = let d = "([1-9]?[0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])"; in
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concatMapStringsSep "." (const d) (range 1 4);
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in
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test IPv4address;
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merge = mergeOneOption;
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};
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addr6 = mkOptionType {
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name = "IPv6 address";
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check = let
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# TODO check IPv6 address harder
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IPv6address = "[0-9a-f.:]+";
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in
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test IPv6address;
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merge = mergeOneOption;
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};
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cidr = either cidr4 cidr6;
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cidr4 = mkOptionType {
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name = "CIDRv4 address";
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check = let
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CIDRv4address = let d = "([1-9]?[0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])"; in
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concatMapStringsSep "." (const d) (range 1 4) + "(/([1-2]?[0-9]|3[0-2]))?";
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in
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test CIDRv4address;
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merge = mergeOneOption;
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};
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cidr6 = mkOptionType {
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name = "CIDRv6 address";
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check = let
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# TODO check IPv6 address harder
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CIDRv6address = "[0-9a-f.:]+(/([0-9][0-9]?|1[0-2][0-8]))?";
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in
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test CIDRv6address;
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merge = mergeOneOption;
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};
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binary-cache-pubkey = str;
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pgp-pubkey = str;
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sitemap.entry = submodule ({ config, ... }: {
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options = {
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desc = mkOption {
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default = null;
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type = nullOr str;
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};
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href = mkOption {
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${if testString "https?://.*" config._module.args.name
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then "default" else null} = config._module.args.name;
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type = nullOr str; # TODO nullOr uri?
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};
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};
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});
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ssh-pubkey = str;
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ssh-privkey = submodule {
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options = {
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bits = mkOption {
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type = nullOr (enum ["4096"]);
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default = null;
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};
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path = mkOption {
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type = either path str;
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apply = x: {
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path = toString x;
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string = x;
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}.${typeOf x};
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};
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type = mkOption {
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type = enum ["rsa" "ed25519"];
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default = "ed25519";
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};
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};
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};
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tinc-pubkey = str;
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krebs.file-location = submodule {
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options = {
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# TODO user
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host = mkOption {
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type = host;
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};
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# TODO merge with ssl.privkey.path
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path = mkOption {
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type = either path str;
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apply = x: {
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path = toString x;
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string = x;
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}.${typeOf x};
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};
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};
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};
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file-mode = mkOptionType {
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name = "file mode";
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check = test "[0-7]{4}";
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merge = mergeOneOption;
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};
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haskell.conid = mkOptionType {
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name = "Haskell constructor identifier";
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check = test "[[:upper:]][[:lower:]_[:upper:]0-9']*";
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merge = mergeOneOption;
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};
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haskell.modid = mkOptionType {
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name = "Haskell module identifier";
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check = x: isString x && all haskell.conid.check (splitString "." x);
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merge = mergeOneOption;
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};
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systemd.unit-name = mkOptionType {
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name = "systemd unit name";
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check = x:
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test "^[0-9A-Za-z:_.\\-]+@?\\.(service|socket|device|mount|automount|swap|target|path|timer|slice|scope)$" x &&
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stringLength x <= 256;
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merge = mergeOneOption;
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};
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|
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# RFC952, B. Lexical grammar, <hname>
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hostname = mkOptionType {
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name = "hostname";
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check = x: isString x && all label.check (splitString "." x);
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merge = mergeOneOption;
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};
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|
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# RFC952, B. Lexical grammar, <name>
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# RFC1123, 2.1 Host Names and Numbers
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label = mkOptionType {
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name = "label";
|
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# TODO case-insensitive labels
|
||
check = test "[0-9A-Za-z]([0-9A-Za-z-]*[0-9A-Za-z])?";
|
||
merge = mergeOneOption;
|
||
};
|
||
|
||
# POSIX.1‐2017, 3.190 Group Name
|
||
groupname = mkOptionType {
|
||
name = "POSIX group name";
|
||
check = filename.check;
|
||
merge = mergeOneOption;
|
||
};
|
||
|
||
# POSIX.1‐2017, 3.281 Portable Filename
|
||
filename = mkOptionType {
|
||
name = "POSIX portable filename";
|
||
check = test "[0-9A-Za-z._][0-9A-Za-z._-]*";
|
||
merge = mergeOneOption;
|
||
};
|
||
|
||
# POSIX.1‐2017, 3.2 Absolute Pathname
|
||
absolute-pathname = mkOptionType {
|
||
name = "POSIX absolute pathname";
|
||
check = x: isString x && substring 0 1 x == "/" && pathname.check x;
|
||
merge = mergeOneOption;
|
||
};
|
||
|
||
# POSIX.1-2017, 3.271 Pathname
|
||
pathname = mkOptionType {
|
||
name = "POSIX pathname";
|
||
check = x:
|
||
let
|
||
# The filter is used to normalize paths, i.e. to remove duplicated and
|
||
# trailing slashes. It also removes leading slashes, thus we have to
|
||
# check for "/" explicitly below.
|
||
xs = filter (s: stringLength s > 0) (splitString "/" x);
|
||
in
|
||
isString x && (x == "/" || (length xs > 0 && all filename.check xs));
|
||
merge = mergeOneOption;
|
||
};
|
||
|
||
# POSIX.1-2017, 3.216 Login Name
|
||
username = mkOptionType {
|
||
name = "POSIX login name";
|
||
check = filename.check;
|
||
merge = mergeOneOption;
|
||
};
|
||
|
||
wireguard-pubkey = str;
|
||
}
|