This server implements lego's httpreq RAW API, and uses lego itself to then create or remove ACME challenges from one of its supported DNS providers.
This was built to work around the fact that Traefik 1.7 was built against a now old version of lego, which means you can't use many of the DNS providers that have been added to lego in the meantime.
DO NOT EXPOSE THIS SERVER TO THE INTERNET
This server provides no security to speak of, and as such, should not be exposed to the internet. If you need authentication, put a reverse proxy in front of it that handles that for you.
The server is configured entirely through environment variables.
The address the server will listen on. See go's net.Dial documentation.
Defaults to: :8080.
Example values:
:8080: listen on all IP's, on port 8080127.0.0.1:3000: listen on localhost, on port 3000[::1]:3000: listen on localhost's IPv6 address, on port 3000
The name of the DNS provider to use when handling requests. See lego's documentation for the list of supported providers.
Just in case you didn't know: lego's providers are also configured through environment variables. Odds are you'll need to add credentials somehow. Refer to lego's documentation to find out what variables apply to your provider.
[acme.dnschallenge]
provider = "httpreq"HTTPREQ_ENDPOINT=<URL to lego-httpreq-server>HTTPREQ_MODE=RAW: lego-httpreq-server does not support the default mode