From f866389c28e053441db17fa20c108737c6a85fdb Mon Sep 17 00:00:00 2001
From: Gabriel Ebner <gebner@gebner.org>
Date: Tue, 15 Oct 2019 21:45:01 +0200
Subject: [PATCH] aplysia: first version of transmission container

---
 aplysia.nix | 92 ++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 81 insertions(+), 11 deletions(-)

diff --git a/aplysia.nix b/aplysia.nix
index bea162d..9fb9b23 100644
--- a/aplysia.nix
+++ b/aplysia.nix
@@ -1,5 +1,8 @@
 { config, pkgs, ... }:
 
+let
+  trnsmssnIface = "wg-trnsmssn";
+in
 {
   imports =
     [
@@ -59,25 +62,92 @@
     };
   };
 
-  services.transmission = {
-    # enable = true;
-    settings = {
-      download-dir = "/mnt/aplysia/torrents";
-      incomplete-dir = "/mnt/aplysia/torrents";
+  containers.trnsmssn =
+  let
+    homeDir = "/mnt/aplysia/torrents";
+  in rec {
+    config = {
+      services.transmission = {
+        # enable = true;
+        settings = {
+          download-dir = homeDir;
+          incomplete-dir = homeDir;
 
-      speed-limit-down = 5000;
-      speed-limit-down-enabled = true;
-      speed-limit-up = 800;
-      speed-limit-up-enabled = true;
+          speed-limit-down = 5000;
+          speed-limit-down-enabled = true;
+          speed-limit-up = 800;
+          speed-limit-up-enabled = true;
 
-      peer-port = 51415;
+          peer-port = 51415;
+        };
+      };
+
+      networking.firewall = {
+        enable = true;
+        allowedTCPPorts = [
+          config.services.transmission.settings.peer-port
+        ];
+      };
+
+      networking.nameservers = [ "193.138.218.74" ];
+
+      networking.interfaces.${trnsmssnIface} = {
+        ipv4.addresses = [ { address = "10.64.157.93"; prefixLength = 32; } ];
+        ipv6.addresses = [ { address = "fc00:bbbb:bbbb:bb01::1:9d5c"; prefixLength = 128; } ];
+        ipv4.routes = [ { address = "0.0.0.0"; prefixLength = 0; } ];
+        ipv6.routes = [ { address = "::"; prefixLength = 0; } ];
+      };
+
+      environment.systemPackages = with pkgs; [ wireguard ];
+    };
+
+    privateNetwork = true;
+
+    interfaces = [ trnsmssnIface ];
+
+    autoStart = true;
+
+    bindMounts.${homeDir} = {
+      hostPath = homeDir;
+      isReadOnly = false;
     };
   };
 
+  networking.wireguard = {
+    enable = true;
+    interfaces.${trnsmssnIface} = {
+      privateKeyFile = "/etc/wgkeys/mullvad";
+      peers = [
+        {
+          allowedIPs = ["0.0.0.0/0" "::/0"];
+          publicKey = "pKcMMeC4jMUxSU5pH1orvp4//GrY8is+y9JRfVP3+BY=";
+          endpoint = "se6-wireguard.mullvad.net:51820";
+        }
+      ];
+      allowedIPsAsRoutes = false;
+    };
+  };
+  systemd.services."container@trnsmssn" = {
+    requires = [ "wireguard-${trnsmssnIface}.service" ];
+    after = [ "wireguard-${trnsmssnIface}.service" ];
+  };
+
+  users.users = [
+    { name = "transmission";
+      group = "transmission";
+      uid = config.ids.uids.transmission;
+    }
+  ];
+
+  users.groups = [
+    { name = "transmission";
+      gid = config.ids.gids.transmission;
+    }
+  ];
+
   networking.firewall = {
     allowedTCPPorts = [
       445 139 # samba
-      config.services.transmission.settings.peer-port
     ];
     allowedUDPPorts = [
       137 138 # samba