git.delta.rocks / jrsonnet / refs/commits / fca1ee17e1b0

1# Shared functions for fleet configuration, available as `fleet` module argument2{ lib }:3let4  inherit (lib.trivial) isFunction functionArgs;5  inherit (lib.options) mkOption mergeOneOption;6  inherit (lib.modules) mkOverride;7  inherit (lib.types)8    listOf9    submodule10    attrsOf11    mkOptionType12    ;13  inherit (lib.strings) optionalString hasPrefix removePrefix;14in15rec {16  types = {17    overlay = mkOptionType {18      name = "nixpkgs-overlay";19      description = "nixpkgs overlay";20      check = {21        __functor = _self: isFunction;22        isV2MergeCoherent = true;23      };24      merge = mergeOneOption;25    };26    listOfOverlay = listOf types.overlay;2728    mkHostsType = module: attrsOf (submodule module);29    mkDataType = module: submodule module;30  };3132  options = {33    mkHostsOption =34      module:35      mkOption {36        type = types.mkHostsType module;37      };38    mkDataOption =39      module:40      mkOption {41        type = types.mkDataType module;42      };43  };4445  inherit (options) mkHostsOption;4647  modules = {48    /**49      Use in places, where fleet might know better than nixpkgs defaults to50    */51    mkFleetDefault = mkOverride 999;52    /**53      Some generators use mkDefault, but optionDefault is set by nixpkgs.54    */55    mkFleetGeneratorDefault = mkOverride 1001;56  };5758  inherit (modules) mkFleetDefault mkFleetGeneratorDefault;5960  secrets = {6162    /**63      Generate a random secret password, 32 ascii characters by default6465      Options:66        size: generated password length in ascii characters (bytes).67        noSymbols: by default, character set includes various special characters ($ , ! + * : ~), and might68                   not be accepted in some contexts, this option switches charset to just [A-Za-z0-9].6970      Output:71        Resulting secret has only part: secret, which contains encrypted password.72    */73    mkPassword =74      {75        size ? 32,76      }:77      (78        {79          coreutils,80          mkSecretGenerator,81        }:82        mkSecretGenerator {83          script = ''84            mkdir $out85            gh generate password -o $out/secret --size ${toString size}86          '';87          parts.secret.encrypted = true;88        }89      );9091    /**92      Generate a random ed25519 keypair9394      Options:95        noEmbedPublic: By default, secret key also embeds public key in itself ("extended" format, 64 bytes)96                       When noEmbedPublis is enabled - only the private scalar is included.97        encoding: Encoring of public and secret parts, can be "raw" (default), "base64" or "hex".9899      Output:100        Resulting secret has two parts: public and secret, where the secret part is encrypted.101102      This secret format is used by e.g Garage S3 server103    */104    mkEd25519 =105      {106        noEmbedPublic ? false,107        encoding ? null,108      }:109      (110        { mkSecretGenerator }:111        mkSecretGenerator {112          script = ''113            mkdir $out114            gh generate ed25519 -p $out/public -s $out/secret \115              ${optionalString noEmbedPublic "--no-embed-public"} \116              ${optionalString (encoding != null) "--encoding=${encoding}"}117          '';118          parts.secret.encrypted = true;119          parts.public.encrypted = false;120        }121      );122123    /**124      Generate a random x25519 keypair125126      Options:127        encoding: Encoring of public and secret parts, can be "raw" (default), "base64" or "hex".128129      Output:130        Resulting secret has two parts: public and secret, where the secret part is encrypted.131132      This secret format is used by e.g Wireguard VPN for peers (base64-encoded)133    */134    mkX25519 =135      {136        encoding ? null,137      }:138      (139        { mkSecretGenerator }:140        mkSecretGenerator {141          script = ''142            mkdir $out143            gh generate x25519 -p $out/public -s $out/secret \144              ${optionalString (encoding != null) "--encoding=${encoding}"}145          '';146147          parts.secret.encrypted = true;148          parts.public.encrypted = false;149        }150      );151152    mkAskPass =153      { prompt ? "Secret value", part ? "secret" }:154      (155        {156          kdePackages,157          mkImpureSecretGenerator,158        }:159        mkImpureSecretGenerator {160          # TODO: Escape prompt?161          script = ''162            ${kdePackages.kdialog}/bin/kdialog --inputbox "${prompt}" | gh private -o $out/${part}163          '';164165          parts.${part}.encrypted = true;166        }167      );168169    /**170      Generate a random RSA keypair171172      Options:173        size: RSA key size, 4096 by default174175      Output:176        Resulting secret has two parts: public and secret, where the secret part is encrypted.177        Both parts are PEM encoded.178    */179    mkRsa =180      {181        size ? 4096,182      }:183      (184        {185          openssl,186          mkSecretGenerator,187        }:188        mkSecretGenerator {189          script = ''190            mkdir $out191192            ${openssl}/bin/openssl genrsa -out rsa_private.key ${toString size}193            ${openssl}/bin/openssl rsa -in rsa_private.key -pubout -out rsa_public.key194195            cat rsa_private.key | gh private -o $out/secret196            cat rsa_public.key | gh public -o $out/public197          '';198199          parts.secret.encrypted = true;200          parts.public.encrypted = false;201        }202      );203204    /**205      Generate a random byte sequence206207      Options:208        size: generated password length in bytes, 32 by default.209        encoding: how the generated bytes should be encoded, "raw" (default), "hex" or "base64"210        noNuls: prevent output byte sequence from containing internal \0, useful for some C applications211                that can't handle their strings properly.212213      Output:214        Resulting secret has only part: secret, which contains encrypted bytes.215216      Might be used for e.g. Wireguard VPN PSK keys (base64-encoded)217    */218    mkBytes =219      {220        count ? 32,221        encoding,222        noNuls ? false,223      }:224      (225        { mkSecretGenerator }:226        mkSecretGenerator {227          script = ''228            mkdir $out229            gh generate bytes --count=${toString count} --encoding=${encoding} -o $out/secret \230              ${optionalString noNuls "--no-nuls"}231          '';232          parts.secret.encrypted = true;233        }234      );235    /**236      Shorthand for `mkBytes`, which defaults to "hex" encoding237    */238    mkHexBytes =239      {240        count ? 32,241      }:242      mkBytes {243        inherit count;244        encoding = "hex";245      };246    /**247      Shorthand for `mkBytes`, which defaults to "base64" encoding248    */249    mkBase64Bytes =250      {251        count ? 32,252      }:253      mkBytes {254        inherit count;255        encoding = "base64";256      };257258    # Wireguard259    # mkWireguard = {}: mkX25519 {encoding = "base64";};260    # mkWireguardPsk = {}: mkBase64Bytes {count = 32;};261  };262263  inherit (secrets)264    mkPassword265    mkEd25519266    mkX25519267    mkRsa268    mkBytes269    mkHexBytes270    mkBase64Bytes271    mkAskPass272    ;273274  strings =275    let276      plaintextPrefix = "<PLAINTEXT>";277      plaintextNewlinePrefix = "<PLAINTEXT-NL>";278    in279    {280      /**281        Decode public secret part into string282      */283      decodeRawSecret =284        raw:285        if hasPrefix plaintextPrefix raw then286          removePrefix plaintextPrefix raw287        else if hasPrefix plaintextNewlinePrefix raw then288          removePrefix plaintextNewlinePrefix raw289        else290          throw "decodeRawSecret only works with plaintext-encoded secret public parts, got ${raw}";291    };292293  inherit (strings) decodeRawSecret;294}