dns-01 go-acme le-go
This dns method provides dns challenge solving for dozens of dns providers, and is therefore one of the most likely to be the provider used if you want to use dns-01.
go-acme le-go is a Go library that provides a full implementation of ACME (RFC8555). Cert Warden ignores the bulk of the code and leverages go-acme le-go simply for its wide breadth of dns provider support.
go-acme le-go natively supports the DNS record API of dozens of DNS providers. Cert Warden leverages this power to use go-acme le-go to create dns records on any of the supported providers. Doing this allows the use of dns-01 challenge solving on any of these providers without having to code support of each into Cert Warden.
go-acme le-go will make dns queries to a wide variety of dns servers as it tries to find the root servers for domains. If you're experiencing confusing errors, ensure your dns queries aren't being blocked or otherwise tampered with on your network.
Configuration
As with all providers, domains that should use this provider must be
specified. One wildcard provider can be configured with a sole
domain of * which will be used if Cert Warden doesn't find a domain
name on any other provider.
Provider's CLI flag name (aka Code)
The primary config option for this provider is the 'Code'. Look up the Code for your specific dns provider. (e.g. 'cloudflare').
Environment Variables
Environment variables are generally used to authenticate access
to your dns provider. To know what variables you need, again go
here,
select your provider, but then review the tables listing Environment Variable Names and add the ones you need.
The format for each environment variable must be the variable
name, equals sign, and the variable value (e.g. variable_name=1234)
Do NOT include the word 'export'.
