Install pihole

Eventially it'll replace dnsmasq, but not today

ansible/roles/docker/files/pihole/docker-compose.yml

@@ -0,0 +1,24 @@
+version: "2.3"
+
+services:
+  pihole:
+    container_name: pihole
+    image: pihole/pihole:v4.4
+    ports:
+      - "{{ wireguard.clients.intersect.ip }}:5353:53/tcp"
+      - "{{ wireguard.clients.intersect.ip }}:5353:53/udp"
+    environment:
+      - TZ=Europe/London'
+      - VIRTUAL_HOST=pihole.jakehoward.tech
+      - WEBPASSWORD={{ pihole_password }}
+    volumes:
+      - ./etc-pihole/:/etc/pihole/
+      - ./etc-dnsmasq.d/:/etc/dnsmasq.d/
+    restart: unless-stopped
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.pihole.rule=Host(`pihole.jakehoward.tech`)"
+      - "traefik.http.routers.pihole.tls=true"
+      - "traefik.http.routers.pihole.tls.certresolver=le"
+      - "traefik.http.routers.pihole.middlewares=internal-only@file"
+      - "traefik.http.services.pihole-pihole.loadbalancer.server.port=80"