From c1328d39aa6d3c4480d685ea9010d97cb9fd3ba7 Mon Sep 17 00:00:00 2001
From: nostoromo root <root@nostromo.fudo.org>
Date: Fri, 16 Oct 2020 09:09:44 -0700
Subject: [PATCH] added netinfo, etc

---
 config/fudo/netinfo-email.nix | 93 +++++++++++++++++++++++++++++++++++
 config/local.nix              |  1 +
 fudo/sites/seattle.nix        | 23 ++++++++-
 hosts/nostromo.nix            | 12 ++---
 static/send-netinfo.rb        | 32 ++++++++++++
 5 files changed, 154 insertions(+), 7 deletions(-)
 create mode 100644 config/fudo/netinfo-email.nix
 create mode 100755 static/send-netinfo.rb

diff --git a/config/fudo/netinfo-email.nix b/config/fudo/netinfo-email.nix
new file mode 100644
index 0000000..4dcc3a2
--- /dev/null
+++ b/config/fudo/netinfo-email.nix
@@ -0,0 +1,93 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.fudo.netinfo-email;
+
+  make-script = server: port: target: pkgs.writeText "netinfo-script.rb" ''
+    #!${pkgs.ruby}/bin/ruby
+
+    require 'net/smtp'
+
+    raise RuntimeError.new("NETINFO_SMTP_USERNAME not set!") if not ENV['NETINFO_SMTP_USERNAME']
+    user = ENV['NETINFO_SMTP_USERNAME']
+
+    raise RuntimeError.new("NETINFO_SMTP_PASSWD not set!") if not ENV['NETINFO_SMTP_PASSWD']
+    passwd = ENV['NETINFO_SMTP_PASSWD']
+
+    hostname = `${pkgs.inetutils}/bin/hostname -f`.strip
+    date = `${pkgs.coreutils}/bin/date +%Y-%m-%d`.strip
+    email_date = `${pkgs.coreutils}/bin/date`
+    ipinfo = `${pkgs.iproute}/bin/ip addr`
+
+    message = <<EOM
+    From: #{user}@fudo.org
+    To: ${target}
+    Subject: #{hostname} network info for #{date}
+    Date: #{email_date}
+
+    #{ipinfo}
+    EOM
+
+    smtp = Net::SMTP.new("${server}", ${toString port})
+    smtp.enable_starttls
+
+    smtp.start('localhost', user, passwd) do |server|
+      server.send_message(message, "#{user}@fudo.org", ["${target}"])
+    end
+  '';
+
+in {
+
+  options.fudo.netinfo-email = {
+    enable = mkEnableOption "Enable netinfo email (hacky way to keep track of a host's IP";
+
+    smtp-server = mkOption {
+      type = types.str;
+      default = "mail.fudo.org";
+    };
+
+    smtp-port = mkOption {
+      type = types.port;
+      default = 587;
+    };
+
+    env-file = mkOption {
+      type = types.str;
+      description = "Path to file containing NETINFO_SMTP_USERNAME and NETINFO_SMTP_PASSWD";
+    };
+
+    target-email = mkOption {
+      type = types.str;
+      default = "network-info@fudo.link";
+      description = "Email to which to send network info report.";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd = {
+      timers.netinfo = {
+        enable = true;
+        description = "Send network info to ${cfg.target-email}";
+        partOf = ["netinfo.service"];
+        wantedBy = [ "timers.target" ];
+        requires = [ "network-online.target" ];
+        timerConfig = {
+          OnCalendar = "daily";
+        };
+      };
+
+      services.netinfo = {
+        enable = true;
+        serviceConfig = {
+          Type = "oneshot";
+          StandardOutput = "journal";
+          EnvironmentFile = cfg.env-file;
+        };
+        script = ''
+          ${pkgs.ruby}/bin/ruby ${make-script cfg.smtp-server cfg.smtp-port cfg.target-email}
+        '';
+      };
+    };
+  };
+}
diff --git a/config/local.nix b/config/local.nix
index a3e43b2..b1f2ec5 100644
--- a/config/local.nix
+++ b/config/local.nix
@@ -16,6 +16,7 @@ with lib;
     ./fudo/mail.nix
     ./fudo/mail-container.nix
     ./fudo/minecraft-server.nix
+    ./fudo/netinfo-email.nix
     ./fudo/node-exporter.nix
     ./fudo/postgres.nix
     ./fudo/prometheus.nix
diff --git a/fudo/sites/seattle.nix b/fudo/sites/seattle.nix
index 3a48232..289166f 100644
--- a/fudo/sites/seattle.nix
+++ b/fudo/sites/seattle.nix
@@ -127,6 +127,7 @@ in {
         hole = "nostromo";
         pihole = "nostromo";
         dns-hole = "nostromo";
+        mon-1 = "srv-1";
       };
 
       network = "10.0.0.0/16";
@@ -188,10 +189,18 @@ in {
           ip-address = "10.0.0.2";
           mac-address = "00:23:7d:e6:d9:ea";
         };
+        lambda = {
+          ip-address = "10.0.0.3";
+          mac-address = "02:50:f6:52:9f:9d";
+        };
         switch-master = {
           ip-address = "10.0.0.5";
           mac-address = "00:14:1C:B6:BB:40";
         };
+        google-wifi = {
+          ip-address = "10.0.0.7";
+          mac-address = "7C:D9:5C:9F:6F:E9";
+        };
         # lm = {
         #   ip-address = "10.0.0.21";
         #   mac-address = "52:54:00:D8:34:92";
@@ -256,6 +265,10 @@ in {
           ip-address = "10.0.0.126";
           mac-address = "04:18:d6:20:48:fb";
         };
+        generator-wireless = {
+          ip-address = "10.0.0.130";
+          mac-address = "B8:27:EB:A6:32:26";
+        };
         brother-wireless = {
           ip-address = "10.0.0.160";
           mac-address = "c0:38:96:64:49:65";
@@ -298,7 +311,11 @@ in {
         };
 
 
-        # Storage network
+        # Ceph network
+        srv-1 = {
+          ip-address = "10.0.10.1";
+          mac-address = "02:65:d7:00:7d:1b";
+        };
         node-1 = {
           ip-address = "10.0.10.101";
           mac-address = "00:1e:06:36:81:cf";
@@ -311,6 +328,10 @@ in {
           ip-address = "10.0.10.103";
           mac-address = "00:1e:06:36:ec:4b";
         };
+        node-4 = {
+          ip-address = "10.0.10.104";
+          mac-address = "00:1e:06:36:dd:8c";
+        };
       };
     };
   };
diff --git a/hosts/nostromo.nix b/hosts/nostromo.nix
index fc8967b..4779a37 100644
--- a/hosts/nostromo.nix
+++ b/hosts/nostromo.nix
@@ -39,6 +39,7 @@ in {
   };
 
   fudo.slynk = {
+    # NOTE: for now, had to do: XDG_RUNTIME_DIR=/run/user/$UID systemctl start --user slynk
     enable = true;
   };
 
@@ -111,6 +112,11 @@ in {
       ];
       bootstrap-dns = "1.1.1.1";
     };
+
+    netinfo-email = {
+      enable = true;
+      env-file = "/srv/netinfo/secure/env";
+    };
   };
 
   environment.systemPackages = with pkgs; [
@@ -162,12 +168,6 @@ in {
   services = {
     dhcpd6.enable = false;
 
-    # glusterfs = {
-    #   enable = true;
-    #   enableGlustereventsd = true;
-    #   useRpcbind = true;
-    # };
-
     nginx = {
       enable = true;
 
diff --git a/static/send-netinfo.rb b/static/send-netinfo.rb
new file mode 100755
index 0000000..69f2019
--- /dev/null
+++ b/static/send-netinfo.rb
@@ -0,0 +1,32 @@
+#!/usr/bin/env ruby
+# coding: utf-8
+
+require 'net/smtp'
+
+error "usage: #{$0} <smtp-server> <smtp-user>" if not (ARGV[0] and ARGV[1])
+server = ARGV[0]
+user = ARGV[1]
+
+error "NETINFO_SMTP_PASSWD not set!" if not ENV['NETINFO_SMTP_PASSWD']
+passwd = ENV['NETINFO_SMTP_PASSWD']
+
+hostname = `hostname -f`.strip
+date = `date +%Y-%m-%d`.strip
+email_date = `date`
+ipinfo = `ip addr`
+
+message = <<EOM
+From: #{user}@fudo.org
+To: network-info@fudo.link
+Subject: #{hostname} network info for #{date}
+Date: #{email_date}
+
+#{ipinfo}
+EOM
+
+smtp = Net::SMTP.new(server, 587)
+smtp.enable_starttls
+
+smtp.start('localhost', user, passwd) do |server|
+  server.send_message(message, "#{user}@fudo.org", ["network-info@fudo.link"])
+end