Added Caddy instructions to reverse proxies doc

docs/how_to_setup_reverse_proxy.md

@@ -81,4 +81,111 @@ With the above commands entered, the configuration below should work properly.
 </VirtualHost>
 ```
 
+### Caddy
+Here is the minimum Caddy config you will need to front Dawarich with.  Please keep in mind that if you are running Caddy separately from your Dawarich stack, you'll need to have a network that is shared between them.
+
+First, create the Docker network that will be used between the stacks, if needed:
+```
+docker network create frontend
+```
+
+Second, create a Docker network for Dawarich to use as the backend network:
+```
+docker network create dawarich
+```
+
+Adjust your Dawarich docker-compose.yaml so that the web app is exposed to your new network and the backend Dawarich network:
+```
+version: '3'
+networks:
+  dawarich:
+  frontend:
+    external: true
+services:
+  dawarich_redis:
+    image: redis:7.0-alpine
+    command: redis-server
+    networks:
+      - dawarich
+    volumes:
+      - ./dawarich/redis:/var/shared/redis
+  dawarich_db:
+    image: postgres:14.2-alpine
+    container_name: dawarich_db
+    volumes:
+      - ./dawarich/db:/var/lib/postgresql/data
+      - ./dawarich/shared:/var/shared
+    networks:
+      - dawarich
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: password
+  dawarich_app:
+    image: freikin/dawarich:latest
+    container_name: dawarich_app
+    volumes:
+      - ./dawarich/gems:/usr/local/bundle/gems
+      - ./dawarich/public:/var/app/public
+    networks:
+      - dawarich
+      - frontend
+    stdin_open: true
+    tty: true
+    entrypoint: dev-entrypoint.sh
+    command: ['bin/dev']
+    restart: on-failure
+    environment:
+      RAILS_ENV: development
+      REDIS_URL: redis://dawarich_redis:6379/0
+      DATABASE_HOST: dawarich_db
+      DATABASE_USERNAME: postgres
+      DATABASE_PASSWORD: password
+      DATABASE_NAME: dawarich_development
+      MIN_MINUTES_SPENT_IN_CITY: 60
+      APPLICATION_HOST: <YOUR FQDN HERE (ex. dawarich.example.com)>
+      TIME_ZONE: America/New_York
+    depends_on:
+      - dawarich_db
+      - dawarich_redis
+  dawarich_sidekiq:
+    image: freikin/dawarich:latest
+    container_name: dawarich_sidekiq
+    volumes:
+      - ./dawarich/gems:/usr/local/bundle/gems
+      - ./dawarich/public:/var/app/public
+    networks:
+      - dawarich
+    stdin_open: true
+    tty: true
+    entrypoint: dev-entrypoint.sh
+    command: ['sidekiq']
+    restart: on-failure
+    environment:
+      RAILS_ENV: development
+      REDIS_URL: redis://dawarich_redis:6379/0
+      DATABASE_HOST: dawarich_db
+      DATABASE_USERNAME: postgres
+      DATABASE_PASSWORD: password
+      DATABASE_NAME: dawarich_development
+      APPLICATION_HOST: <YOUR FQDN HERE (ex. dawarich.example.com)>
+    depends_on:
+      - dawarich_db
+      - dawarich_redis
+      - dawarich_app
+```
+
+Lastly, edit your Caddy config as needed:
+```
+{
+	http_port 80
+	https_port 443
+}
+
+<YOUR FQDN HERE (ex. dawarich.example.com)> {
+	reverse_proxy dawarich_app:3000
+}
+```
+
+---
+
 Please note that the above configurations are just examples and that they contain the minimum configuration needed to make the reverse proxy work properly. Feel free to adjust the configuration to your own needs.