Initial version of the faucet

default.nix

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+let pkgs = import ./nix {}; in pkgs.packages

jormugandr_api.js

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+const axios = require("axios");
+
+async function getAccountStatus(hostUrl, accountId) {
+  const response = await axios.get(`${hostUrl}/account/${accountId}`);
+  return response.data;
+}
+
+async function getNodeSettings(hostUrl) {
+  const response = await axios.get(`${hostUrl}/settings`);
+  return response.data;
+}
+
+async function postMsg(hostUrl, msg) {
+  axios.post(`${hostUrl}/message`, msg, {
+    headers: {
+      "content-type": "application/octet-stream"
+    }
+  });
+}
+
+module.exports = {
+  getAccountStatus,
+  getNodeSettings,
+  postMsg
+};

nix/default.nix

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+{ sources ? import ./sources.nix }:
+with {
+  mozilla-overlay = import sources.nixpkgs-mozilla;
+
+  overlay = self: super: {
+    inherit (import sources.niv { }) niv;
+    nodejs = super.nodejs-slim-11_x;
+    inherit (import sources.yarn2nix { pkgs = self; }) mkYarnPackage yarn2nix;
+    packages = self.callPackages ./packages.nix { };
+    iohkNix = import sources.iohk-nix {
+      application = "jormungandr-faucet";
+      nixpkgsOverride = self;
+    };
+
+    rustc = super.latest.rustChannels.stable.rust.override {
+      targets = [ "wasm32-unknown-unknown" ];
+    };
+  };
+};
+import sources.nixpkgs {
+  overlays = [ mozilla-overlay overlay ];
+  config = { };
+}

nix/nixos/default.nix

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+{
+  imports = import ./module-list.nix;
+}

nix/nixos/jormungandr-faucet-options.nix

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+{ config, lib, pkgs, ... }:
+
+let
+  jormungandr-faucet = (import ../. { }).packages.jormungandr-faucet;
+  cfg = config.services.jormungandr-faucet;
+  inherit (lib) mkOption types;
+in {
+  options.services.jormungandr-faucet = {
+    package = mkOption {
+      type = types.package;
+      default = (import ../. {}).packages.jormungandr-faucet-js;
+      defaultText = "jormungandr-faucet";
+      description = ''
+        The jormungandr-faucet package to be used
+      '';
+    };
+
+    jormungandrApi = mkOption {
+      type = types.str;
+      default = "http://localhost:8443/api/v0";
+    };
+
+    secretKeyPath = mkOption {
+      type = types.str;
+      default = "/var/lib/private/jormungandr-faucet/private.key";
+    };
+
+    port = mkOption {
+      type = types.port;
+      default = 3008;
+    };
+
+    lovelacesToGive = mkOption {
+      type = types.int;
+      default = 1;
+    };
+  };
+}

nix/nixos/jormungandr-faucet-service.nix

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+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.services.jormungandr-faucet;
+  inherit (lib) mkOption types mkIf;
+in {
+  options.services.jormungandr-faucet.enable = mkOption {
+    type = types.bool;
+    default = false;
+    description = ''
+      Enable the Jormungandr Faucet, an HTTP service that talks to Jormungandr
+      to spread ADA love.
+    '';
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.jormungandr-faucet = {
+      description = "jormungandr-faucet daemon";
+      after = [ "jormungandr.service"];
+      wantedBy = [ "multi-user.target" ];
+
+      serviceConfig = {
+        DynamicUser = true;
+        Restart = "always";
+        User = "jormungandr-faucet";
+        RestartSec = "10s";
+        StartLimitBurst = 50;
+        StateDirectory = "jormungandr-faucet";
+      };
+
+      environment = {
+        JORMUNGANDR_API = cfg.jormungandrApi;
+        PORT = toString cfg.port;
+        LOVELACES_TO_GIVE = toString cfg.lovelacesToGive;
+      };
+
+      serviceConfig.PermissionsStartOnly = true;
+      preStart = ''
+        ls -la /var/lib
+        cp /var/lib/keys/jormungandr-faucet.key /var/lib/private/jormungandr-faucet/private.key
+      '';
+
+      script = ''
+        export SECRET_KEY="$(< /var/lib/private/jormungandr-faucet/private.key)"
+        ${cfg.package}/bin/faucet
+      '';
+    };
+  };
+}

nix/nixos/module-list.nix

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+[
+  ./jormungandr-faucet-options.nix
+  ./jormungandr-faucet-service.nix
+]

nix/nixos/tests/default.nix

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+{ pkgs, supportedSystems ? [ "x86_64-linux" ] }:
+
+let
+  inherit (pkgs) lib;
+  inherit (lib) genAttrs hydraJob;
+
+  forAllSystems = genAttrs supportedSystems;
+
+  importTest = fn: args: system:
+    let
+      imported = import fn;
+      test = import (pkgs.path + "/nixos/tests/make-test.nix") imported;
+    in test ({ inherit system; } // args);
+
+  callTest = fn: args:
+    forAllSystems (system: hydraJob (importTest fn args system));
+in rec {
+  simple = callTest ./simple.nix { };
+}

nix/nixos/tests/simple.nix

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+{ pkgs , ... }:
+
+{
+  name = "jormungandr-faucet-test";
+  nodes = {
+    machine = { config, pkgs, ... }: {
+      imports = [
+        ../.
+      ];
+      services = {
+        jormungandr-faucet = {
+          enable = true;
+        };
+
+        jormungandr = {
+          enable = true;
+        };
+      };
+    };
+  };
+  testScript = ''
+    startAll
+    $machine->execute("mkdir -p /var/lib/keys");
+    $machine->execute("echo SECRET_KEY=key > /var/lib/keys/jormungandr-faucet.key");
+    $machine->waitForUnit("jormungandr-faucet.service");
+    $machine->waitForOpenPort(3008);
+  '';
+
+}

nix/packages.nix

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+{ stdenv, mkYarnPackage, yarn2nix, callPackage }:
+
+{
+  jormungandr-faucet-js = mkYarnPackage {
+    name = "jormungandr-faucet";
+    src = ../.;
+    packageJSON = ../package.json;
+    yarnLock = ../yarn.lock;
+  };
+
+  jormungandr-faucet-tests = callPackage ./nixos/tests {};
+}

nix/sources.json

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+{
+    "gitignore": {
+        "branch": "master",
+        "description": "Nix function for filtering local git sources",
+        "homepage": "",
+        "owner": "hercules-ci",
+        "repo": "gitignore",
+        "rev": "31860d428b0d6cc03fb7ca9eca8b99dc3750ee5e",
+        "sha256": "1km1nryf41f0xc7n632vqc8p7wgx5lz7nmz3qm5zj1dr6260jk3m",
+        "type": "tarball",
+        "url": "https://github.com/hercules-ci/gitignore/archive/31860d428b0d6cc03fb7ca9eca8b99dc3750ee5e.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
+    "iohk-nix": {
+        "branch": "jormungandr-master",
+        "description": "nix scripts shared across projects",
+        "homepage": null,
+        "owner": "input-output-hk",
+        "repo": "iohk-nix",
+        "rev": "689cf245da41f5178246802d3318ca610529ed56",
+        "sha256": "0fn3p94iblgi366vr6773h8i6i7b7p1gjcsb7005rsf6z2h71khb",
+        "type": "tarball",
+        "url": "https://github.com/input-output-hk/iohk-nix/archive/689cf245da41f5178246802d3318ca610529ed56.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
+    "niv": {
+        "branch": "master",
+        "description": "Easy dependency management for Nix projects",
+        "homepage": "https://github.com/nmattia/niv",
+        "owner": "nmattia",
+        "repo": "niv",
+        "rev": "c57098815e542b3a345d6f3fa821ea87c75b751d",
+        "sha256": "0q4xjg2nkzcvh62m92d1d2xzxf6xhfr512yndaklqp6qy8vz29jx",
+        "type": "tarball",
+        "url": "https://github.com/nmattia/niv/archive/c57098815e542b3a345d6f3fa821ea87c75b751d.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
+    "nixpkgs": {
+        "branch": "nixpkgs-unstable",
+        "description": "A read-only mirror of NixOS/nixpkgs tracking the released channels. Send issues and PRs to",
+        "homepage": "https://github.com/NixOS/nixpkgs",
+        "owner": "NixOS",
+        "repo": "nixpkgs-channels",
+        "rev": "e19054ab3cd5b7cc9a01d0efc71c8fe310541065",
+        "sha256": "0b92yhkj3pq58svyrx7jp0njhaykwr29079izqn6qs638v8zvhl2",
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs-channels/archive/e19054ab3cd5b7cc9a01d0efc71c8fe310541065.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
+    "nixpkgs-mozilla": {
+        "branch": "master",
+        "description": "mozilla related nixpkgs (extends nixos/nixpkgs repo)",
+        "homepage": null,
+        "owner": "mozilla",
+        "repo": "nixpkgs-mozilla",
+        "rev": "b52a8b7de89b1fac49302cbaffd4caed4551515f",
+        "sha256": "1np4fmcrg6kwlmairyacvhprqixrk7x9h89k813safnlgbgqwrqb",
+        "type": "tarball",
+        "url": "https://github.com/mozilla/nixpkgs-mozilla/archive/b52a8b7de89b1fac49302cbaffd4caed4551515f.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
+    "yarn2nix": {
+        "branch": "master",
+        "description": "Generate nix expressions from a yarn.lock file",
+        "homepage": null,
+        "owner": "moretea",
+        "repo": "yarn2nix",
+        "rev": "7effadded30d611a460e212cb73614506ef61c52",
+        "sha256": "0r4ww3mjx3n7bn2v1iav33liyphyr2x005ak6644qs15bp4bn3cr",
+        "type": "tarball",
+        "url": "https://github.com/moretea/yarn2nix/archive/7effadded30d611a460e212cb73614506ef61c52.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    }
+}