castopod in docker-compose

castopod.subdomain.conf

## Version 2022/10/06
# make sure that your dns has a cname set for castopod and that your castopod container is not using a base url
server {
    listen 443 ssl;
    listen [::]:443 ssl;

    server_name castopod.*;

    include /config/nginx/ssl.conf;

    client_max_body_size 0;
    
    # enable for ldap auth (requires ldap-location.conf in the location block)
    #include /config/nginx/ldap-server.conf;

    # enable for Authelia (requires authelia-location.conf in the location block)
    #include /config/nginx/authelia-server.conf;
    
    location / {
        # enable the next two lines for http auth
        #auth_basic "Restricted";
        #auth_basic_user_file /config/nginx/.htpasswd;

        # enable for ldap auth (requires ldap-server.conf in the server block)
        #include /config/nginx/ldap-location.conf;

        # enable for Authelia (requires authelia-server.conf in the server block)
        #include /config/nginx/authelia-location.conf;

        include /config/nginx/proxy.conf;
        include /config/nginx/resolver.conf;
        set $upstream_app castopod;
        set $upstream_port 80;
        set $upstream_proto http;
        proxy_pass $upstream_proto://$upstream_app:$upstream_port;

    }
}    

docker-compose.yml

version: "3.7"

services:
  app:
    image: castopod/app:develop
    container_name: "castopod-app1"
    volumes:
      - ./castopod-media:/opt/castopod/public/media
    environment:
      MYSQL_DATABASE: castopod1
      MYSQL_USER: castopod1
      MYSQL_PASSWORD: changeme1
      CP_BASEURL: "http://castopod.mydomain.com"
      CP_ANALYTICS_SALT: changeme20001
      CP_CACHE_HANDLER: redis
      CP_REDIS_HOST: redis
      CP_DISABLE_HTTPS: 1
      PUID: 1000
      PGID: 1000
    restart: unless-stopped

  web-server:
    image: castopod/web-server:develop
    container_name: "castopod-web-server1"
    volumes:
      - ./castopod-media:/var/www/html/media
    environment:
      PUID: 1000
      PGID: 1000
    ports:
      - 8087:80
    restart: unless-stopped

  mariadb:
    image: mariadb:10.5
    container_name: "castopod-mariadb1"
    volumes:
      - ./castopod-db:/var/lib/mysql
    environment:
      MYSQL_ROOT_PASSWORD: changeme01
      MYSQL_DATABASE: castopod1
      MYSQL_USER: castopod1
      MYSQL_PASSWORD: changeme1
      PUID: 1000
      PGID: 1000
    restart: unless-stopped

  redis:
    image: redis:7.0-alpine
    container_name: "castopod-redis1"
    volumes:
      - ./castopod-cache:/data
    environment:
      PUID: 1000
      PGID: 1000

  swag:
    image: lscr.io/linuxserver/swag
    container_name: swag
    cap_add:
      - NET_ADMIN
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=US/Eastern
      - URL=mydomain.com
      - SUBDOMAINS=castopod
      - VALIDATION=http
    volumes:
      - ./swag:/config
    ports:
      - 443:443
      - 80:80
    restart: unless-stopped

volumes:
  castopod-media:
  castopod-db:
  castopod-cache:

I finally got castopod working in Docker! Here's what I needed to do (and I'm not sure if there was a better way)

• CP_BASEURL in the app service needs to be the http version with the subdomain, without the port
• Removed all of the custom network declarations
• URL in the swag service is the domain without an http prefix, with SUBDOMAINS being the relevant subdomain (in this case castopod)

With these changes in place, I did not have to modify the castopod.subdomain.conf supplied in the swag container.