Nginx Proxy

This provides an Nginx based Docker image that can be used to proxy requests to given endpoints (based on server name).

Usage

The image requires both the desired LISTEN_PORT of the Nginx service, and the PROXY_HOSTS endpoint configuration - both supplied as enviornemnt variables. The configuration is supplied as a Base64-encoded JSON array conforming to the following template:

[
  {
    "name": "name-of-endpoint",
    "server_name": "www.server-name.com",
    "proxy_url": "https://www.proxy-url.com",
    "proxy_host": "www.proxy-host.com",
    "resolver": "1.1.1.1",
    "timeout": 29,
    "location_extra": "proxy_set_header x-api-key KEY;"
  }
]

Example

Below is an example which highlights defining a static, regex-based and catch-all endpoint proxy service.

With a configuration stored in a file entitled config.json.

[
  {
    "name": "google",
    "server_name": "www.my-google-proxy.com",
    "proxy_url": "https://www.google.com",
    "proxy_host": "www.google.com",
    "resolver": "1.1.1.1",
    "timeout": 29,
    "location_extra": ""
  },
  {
    "name": "yahoo",
    "server_name": "~^www\\.(?<subdomain>.+)-yahoo\\.com$",
    "proxy_url": "https://$subdomain.yahoo.com",
    "proxy_host": "$subdomain.yahoo.com",
    "resolver": "1.1.1.1",
    "timeout": 29,
    "location_extra": ""
  },
  {
    "name": "default",
    "server_name": "_",
    "proxy_url": "https://www.mybuilder.com",
    "proxy_host": "www.mybuilder.com",
    "resolver": "1.1.1.1",
    "timeout": 29,
    "location_extra": ""
  }
]

docker run --rm -it \
  -p 80:80 \
  -e LISTEN_PORT=80 \
  -e PROXY_HOSTS=$(cat config.json | base64) \
    ghcr.io/mybuilder/nginx-proxy