k 3 hidden-ssh: init

krebs/3modules/default.nix

@@ -20,6 +20,7 @@ let
       ./github-hosts-sync.nix
       ./git.nix
       ./go.nix
+      ./hidden-ssh.nix
       ./htgen.nix
       ./iptables.nix
       ./kapacitor.nix

krebs/3modules/hidden-ssh.nix

@@ -0,0 +1,53 @@
+{ config, lib, pkgs, ... }:
+
+with import <stockholm/lib>;
+let
+  cfg = config.krebs.hidden-ssh;
+
+  out = {
+    options.krebs.hidden-ssh = api;
+    config = lib.mkIf cfg.enable imp;
+  };
+
+  api = {
+    enable = mkEnableOption "hidden SSH announce";
+  };
+
+  imp = let
+    torDirectory = "/var/lib/tor"; # from tor.nix
+    hiddenServiceDir = torDirectory + "/ssh-announce-service";
+  in {
+    services.tor = {
+      enable = true;
+      extraConfig = ''
+        HiddenServiceDir ${hiddenServiceDir}
+        HiddenServicePort 22 127.0.0.1:22
+      '';
+      client.enable = true;
+    };
+    systemd.services.hidden-ssh-announce = {
+      description = "irc announce hidden ssh";
+      after = [ "tor.service" ];
+      wants = [ "tor.service" ];
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        # ${pkgs.tor}/bin/torify
+        ExecStart = pkgs.writeDash "irc-announce-ssh" ''
+          set -efu
+          until test -e ${hiddenServiceDir}/hostname; do
+            echo "still waiting for ${hiddenServiceDir}/hostname"
+            sleep 1
+          done
+          ${pkgs.irc-announce}/bin/irc-announce \
+            irc.freenode.org 6667 ${config.krebs.build.host.name}-ssh \
+            \#krebs-announce \
+            "SSH Hidden Service at $(cat ${hiddenServiceDir}/hostname)"
+        '';
+        PrivateTmp = "true";
+        User = "tor";
+        Type = "oneshot";
+      };
+    };
+  };
+in
+out