Caddy Docker Proxy caddy wildcard hosts

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1

1. The problem I’m having:

I am wondering if I am allowed to specify double wildcard for caddy server context. I want to match any subdomain of any domain. I know I can do *.domain.tld, but I want to match any subdomain of any tld. I don’t have an easy way to test if this is allowed as this is in production and I want to make sure this will work

caddy: "http://*.*"

I also want to know if it is possible to match on url parts instead of domain name. For example below matches for domains phppointofsale.com and phppos.com, but I just watch the match on the path portion of url. Below is what I have now.

 caddy: "http://*.phppointofsale.com/index.php/ecommerce/cron, http://*.phppos.com/index.php/ecommerce/cron, http://*.phppointofsale.com/index.php/ecommerce/manual_sync, http://*.phppos.com/index.php/ecommerce/manual_sync, http://*.phppointofsale.com/index.php/cron/*, http://*.phppos.com/index.php/cron/*, http://*.phppointofsale.com/PHP-Point-Of-Sale-Prev/index.php/ecommerce/cron, http://*.phppos.com/PHP-Point-Of-Sale-Prev/index.php/ecommerce/cron, http://*.phppointofsale.com/PHP-Point-Of-Sale-Prev/index.php/ecommerce/manual_sync, http://*.phppos.com/PHP-Point-Of-Sale-Prev/index.php/ecommerce/manual_sync, http://*.phppointofsale.com/PHP-Point-Of-Sale-Prev/index.php/cron/*, http://*.phppos.com/PHP-Point-Of-Sale-Prev/index.php/cron/*"

2. Error messages and/or full log output:

3. Caddy version:

v2.6.4 h1:2hwYqiRwk1tf3VruhMpLcYTg+11fCdr8S3jhNAdnPy8=

4. How I installed and ran Caddy:

docker caddy proxy (GitHub - lucaslorentz/caddy-docker-proxy: Caddy as a reverse proxy for Docker )

a. System environment:

ubuntu using docker

b. Command:

c. Service/unit/compose file:

  production_php_point_of_sale_app:
    logging:
      driver: "local"
    deploy:
      mode: global
      restart_policy:
        condition: any
      placement:
        constraints: [node.labels.phppos_app == true]
      labels:
        caddy: "http://*.*"
        caddy.reverse_proxy.trusted_proxies: "private_ranges"
        caddy.reverse_proxy: "{{upstreams}}"
    image: phppointofsale/production-app
    build:
      context: "production_php_point_of_sale_app"
    restart: always
    env_file:
      - production_php_point_of_sale_app/.env
      - .env
    networks:
      - app_network
      - mail

d. My complete Caddy config:

This does not apply as this is a configuration question

5. Links to relevant resources:

2

Nope. Wildcards are only valid on the left-most label.

Just use http:// instead to match all hosts.

We used to allow it, but it’s now deprecated. It was buggy and misleading. I strongly recommend avoiding that. Use request matchers with the path matcher instead.

That’s a pretty old version at this point. Please upgrade.

You should use the trusted_proxies global option instead. See the docs. Using the global option instead unlocks some new features.

3

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