amazon-ec2-net-utils: init at 2.5.1

nixos/doc/manual/release-notes/rl-2505.section.md

@@ -12,7 +12,7 @@
 
 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->
 
-- Create the first release note entry in this section!
+- [amazon-ec2-net-utils](https://github.com/amazonlinux/amazon-ec2-net-utils), a set of utilities for managing elastic network interfaces on Amazon EC2. Available as [services.amazon-ec2-net-utils](#opt-services.amazon-ec2-net-utils.enable).
 
 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->
 

nixos/modules/module-list.nix

@@ -984,6 +984,7 @@
   ./services/networking/acme-dns.nix
   ./services/networking/adguardhome.nix
   ./services/networking/alice-lg.nix
+  ./services/networking/amazon-ec2-net-utils.nix
   ./services/networking/amuled.nix
   ./services/networking/aria2.nix
   ./services/networking/asterisk.nix

nixos/modules/services/networking/amazon-ec2-net-utils.nix

@@ -0,0 +1,84 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+let
+  cfg = config.services.amazon-ec2-net-utils;
+in
+{
+  options.services.amazon-ec2-net-utils = {
+    enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      description = ''
+        Whether to enable amazon-ec2-net-utils.
+
+        This service needs systemd-networkd so `systemd.network.enable` must also be `true`.
+      '';
+      example = true;
+    };
+    package = lib.mkPackageOption pkgs "amazon-ec2-net-utils" { };
+  };
+
+  config =
+    lib.mkIf
+      (
+        cfg.enable
+        # amazon-ec2-net-utils needs systemd-networkd.
+        && config.systemd.network.enable
+      )
+      {
+        # See https://github.com/amazonlinux/amazon-ec2-net-utils/tree/v2.5.1/systemd/system.
+        systemd = {
+          services = {
+            "refresh-policy-routes@" = {
+              description = "Refresh policy routes for %I";
+              serviceConfig = {
+                Type = "oneshot";
+                PrivateTmp = "yes";
+                AmbientCapabilities = "CAP_NET_ADMIN";
+                NoNewPrivileges = "yes";
+                User = "root";
+                ExecStart = "${cfg.package}/bin/setup-policy-routes %i refresh";
+                SuccessExitStatus = "SIGTERM";
+                KillMode = "process";
+              };
+            };
+
+            "policy-routes@" = {
+              description = "Set up policy routes for %I";
+              startLimitIntervalSec = 10;
+              startLimitBurst = 5;
+              wants = [ "refresh-policy-routes@%i.timer" ];
+              # TODO: Need [Install] for Also = "refresh-policy-routes@%i.timer". systemd.services.<name> has no installConfig attribute.
+              serviceConfig = {
+                Type = "oneshot";
+                RemainAfterExit = "yes";
+                PrivateTmp = "yes";
+                AmbientCapabilities = "CAP_NET_ADMIN";
+                NoNewPrivileges = "yes";
+                User = "root";
+                ExecStart = "${cfg.package}/bin/setup-policy-routes %i start";
+                Restart = "on-failure";
+                RestartSec = 1;
+                KillMode = "process";
+              };
+            };
+          };
+
+          timers = {
+            "refresh-policy-routes@" = {
+              OnActiveSec = 30;
+              OnUnitInactiveSec = 60;
+              RandomizedDelaySec = 5;
+            };
+          };
+        };
+
+        services.udev.packages = [ cfg.package ];
+      };
+
+  meta.maintainers = pkgs.amazon-ec2-net-utils.meta.maintainers;
+}

pkgs/by-name/am/amazon-ec2-net-utils/package.nix

@@ -0,0 +1,105 @@
+{
+  lib,
+  bash,
+  coreutils,
+  curl,
+  fetchFromGitHub,
+  gnugrep,
+  gnused,
+  installShellFiles,
+  iproute2,
+  makeWrapper,
+  nix-update-script,
+  stdenv,
+  systemd,
+}:
+
+stdenv.mkDerivation rec {
+  pname = "amazon-ec2-net-utils";
+  version = "2.5.1";
+
+  src = fetchFromGitHub {
+    owner = "amazonlinux";
+    repo = "amazon-ec2-net-utils";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-Nmrhu3j3JZA7GeJsLwOfdFKfyPYl1vFiH5Zr372eAXk=";
+  };
+
+  strictDeps = true;
+
+  nativeBuildInputs = [
+    installShellFiles
+    makeWrapper
+  ];
+
+  buildInputs = [
+    bash
+  ];
+
+  outputs = [
+    "out"
+    "man"
+  ];
+
+  # See https://github.com/amazonlinux/amazon-ec2-net-utils/blob/v2.5.1/GNUmakefile#L26-L37.
+  installPhase = ''
+    mkdir $out
+
+    for file in bin/*.sh; do
+      install -D -m 755 "$file" $out/bin/$(basename --suffix ".sh" "$file")
+      substituteInPlace $out/bin/$(basename --suffix ".sh" "$file") \
+        --replace-fail AMAZON_EC2_NET_UTILS_LIBDIR $out/share/amazon-ec2-net-utils
+    done
+
+    substituteInPlace $out/bin/setup-policy-routes \
+      --replace-fail /lib/systemd ${systemd}/lib/systemd
+
+    wrapProgram $out/bin/setup-policy-routes \
+      --prefix PATH : ${
+        lib.makeBinPath [
+          coreutils
+          # bin/setup-policy-roots.sh sources lib/lib.sh which needs these.
+          #
+          # lib/lib.sh isn't executable so we can't use it with wrapProgram.
+          curl
+          gnugrep
+          gnused
+          iproute2
+          systemd
+        ]
+      }
+
+    for file in lib/*.sh; do
+      install -D -m 644 -t $out/share/amazon-ec2-net-utils "$file"
+    done
+
+    substituteInPlace $out/share/amazon-ec2-net-utils/lib.sh \
+      --replace-fail /usr/lib/systemd $out/lib/systemd
+
+    for file in udev/*.rules; do
+      install -D -m 644 -t $out/lib/udev/rules.d "$file"
+    done
+
+    substituteInPlace $out/lib/udev/rules.d/99-vpc-policy-routes.rules \
+      --replace-fail /usr/bin/systemctl ${systemd}/bin/systemctl
+
+    for file in systemd/network/*.network; do
+      install -D -m 644 -t $out/lib/systemd/network "$file"
+    done
+
+    installManPage doc/*.8
+  '';
+
+  passthru = {
+    updateScript = nix-update-script { };
+  };
+
+  meta = {
+    description = "Contains a set of utilities for managing elastic network interfaces on Amazon EC2";
+    homepage = "https://github.com/amazonlinux/amazon-ec2-net-utils";
+    license = lib.licenses.asl20;
+    platforms = lib.platforms.linux;
+    # TODO: Find maintainer(s).
+    maintainers = with lib.maintainers; [ ];
+  };
+}