Add pihole docker container

modules/containers.nix

@@ -0,0 +1,36 @@
+{ config, lib, pkgs, ... }:
+
+{
+  # Enable Docker
+  virtualisation.docker = {
+    enable = true;
+    storageDriver = "overlay2";
+  };
+
+  # Container setup
+  docker-containers = {
+    pihole = {
+      image = "pihole/pihole:latest";
+      ports = [
+        "53:53/tcp"
+        "53:53/udp"
+        "3080:80"
+        "30443:443"
+      ];
+      volumes = [
+        "/var/lib/pihole/:/etc/pihole/"
+        "/var/lib/dnsmasq/.d:/etc/dnsmasq.d/"
+      ];
+      environment = {
+        ServerIP = "192.168.1.2";
+      };
+      extraDockerOptions = [
+        "--cap-add=NET_ADMIN"
+        "--dns=127.0.0.1"
+        "--dns=1.1.1.1"
+      ];
+      workdir = "/var/lib/pihole/";
+    };
+  };
+
+}