Merge pull request #67213 from mmahut/jormungandr

nixos: adding jormungandr service

nixos/modules/module-list.nix

@@ -609,6 +609,7 @@
   ./services/networking/iodine.nix
   ./services/networking/iperf3.nix
   ./services/networking/ircd-hybrid/default.nix
+  ./services/networking/jormungandr.nix
   ./services/networking/iwd.nix
   ./services/networking/keepalived/default.nix
   ./services/networking/keybase.nix

nixos/modules/services/networking/jormungandr.nix

@@ -0,0 +1,97 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.services.jormungandr;
+
+  inherit (lib) mkEnableOption mkIf mkOption;
+  inherit (lib) optionalString types;
+
+  dataDir = "/var/lib/jormungandr";
+
+  # Default settings so far, as the service matures we will
+  # move these out as separate settings
+  configSettings = {
+    storage = dataDir;
+    p2p = {
+      public_address = "/ip4/127.0.0.1/tcp/8606";
+      messages = "high";
+      blocks = "high";
+    };
+    rest = {
+      listen = "127.0.0.1:8607";
+    };
+  };
+
+  configFile = if cfg.configFile == null then
+    pkgs.writeText "jormungandr.yaml" (builtins.toJSON configSettings)
+  else cfg.configFile;
+
+in {
+
+  options = {
+
+    services.jormungandr = {
+      enable = mkEnableOption "jormungandr service";
+
+      configFile = mkOption {
+       type = types.nullOr types.path;
+       default = null;
+       example = "/var/lib/jormungandr/node.yaml";
+       description = ''
+         The path of the jormungandr blockchain configuration file in YAML format.
+         If no file is specified, a file is generated using the other options.
+       '';
+     };
+
+      secretFile = mkOption {
+       type = types.nullOr types.path;
+       default = null;
+       example = "/etc/secret/jormungandr.yaml";
+       description = ''
+         The path of the jormungandr blockchain secret node configuration file in
+         YAML format. Do not store this in nix store!
+       '';
+     };
+
+      genesisBlockHash = mkOption {
+        type = types.nullOr types.string;
+        default = null;
+        example = "d70495af81ae8600aca3e642b2427327cb6001ec4d7a0037e96a00dabed163f9";
+        description = ''
+          Set the genesis block hash (the hash of the block0) so we can retrieve
+          the genesis block (and the blockchain configuration) from the existing
+          storage or from the network.
+        '';
+      };
+
+      genesisBlockFile = mkOption {
+        type = types.nullOr types.path;
+        default = null;
+        example = "/var/lib/jormungandr/block-0.bin";
+        description = ''
+          The path of the genesis block file if we are hosting it locally.
+        '';
+      };
+
+    };
+  };
+
+  config = mkIf cfg.enable {
+
+    systemd.services.jormungandr = {
+      description = "jormungandr server";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network-online.target" ];
+      serviceConfig = {
+        DynamicUser = true;
+        StateDirectory = baseNameOf dataDir;
+        ExecStart = ''
+          ${pkgs.jormungandr}/bin/jormungandr --config ${configFile} \
+            ${optionalString (cfg.secretFile != null) " --secret ${cfg.secretFile}"} \
+            ${optionalString (cfg.genesisBlockHash != null) " --genesis-block-hash ${cfg.genesisBlockHash}"} \
+            ${optionalString (cfg.genesisBlockFile != null) " --genesis-block ${cfg.genesisBlockFile}"}
+        '';
+      };
+    };
+  };
+}

nixos/tests/all-tests.nix

@@ -127,6 +127,7 @@ in
   jackett = handleTest ./jackett.nix {};
   jellyfin = handleTest ./jellyfin.nix {};
   jenkins = handleTest ./jenkins.nix {};
+  jormungandr = handleTest ./jormungandr.nix {};
   kafka = handleTest ./kafka.nix {};
   kerberos = handleTest ./kerberos/default.nix {};
   kernel-latest = handleTest ./kernel-latest.nix {};

nixos/tests/jormungandr.nix

@@ -0,0 +1,49 @@
+import ./make-test.nix ({ pkgs, ... }: {
+  name = "jormungandr";
+  meta = with pkgs.stdenv.lib.maintainers; {
+    maintainers = [ mmahut ];
+  };
+
+  nodes = {
+    bft = { ... }: {
+      environment.systemPackages = [ pkgs.jormungandr ];
+
+      services.jormungandr.enable = true;
+      services.jormungandr.genesisBlockFile = "/var/lib/jormungandr/block-0.bin";
+      services.jormungandr.secretFile = "/etc/secrets/jormungandr.yaml";
+    };
+  };
+
+  testScript = ''
+    startAll;
+
+    # Let's wait for the StateDirectory
+    $bft->waitForFile("/var/lib/jormungandr/");
+
+    # First, we generate the genesis file for our new blockchain
+    $bft->succeed("jcli genesis init > /root/genesis.yaml");
+
+    # We need to generate our secret key
+    $bft->succeed("jcli key generate --type=Ed25519 > /root/key.prv");
+
+    # We include the secret key into our services.jormungandr.secretFile
+    $bft->succeed("mkdir -p /etc/secrets");
+    $bft->succeed("echo -e \"bft:\\n signing_key:\" \$(cat /root/key.prv) > /etc/secrets/jormungandr.yaml");
+
+    # After that, we generate our public key from it
+    $bft->succeed("cat /root/key.prv | jcli key to-public > /root/key.pub");
+
+    # We add our public key as a consensus leader in the genesis configration file
+    $bft->succeed("sed -ie \"s/ed25519_pk1vvwp2s0n5jl5f4xcjurp2e92sj2awehkrydrlas4vgqr7xzt33jsadha32/\$(cat /root/key.pub)/\" /root/genesis.yaml");
+
+    # Now we can generate the genesis block from it
+    $bft->succeed("jcli genesis encode --input /root/genesis.yaml --output /var/lib/jormungandr/block-0.bin");
+
+    # We should have everything to start the service now
+    $bft->succeed("systemctl restart jormungandr");
+    $bft->waitForUnit("jormungandr.service");
+
+    # Now we can test if we are able to reach the REST API
+    $bft->waitUntilSucceeds("curl -L http://localhost:8607/api/v0/node/stats | grep uptime");
+  '';
+})