support several DNS providers at once about lego

[ldez]

Hello,

The topic has been already discussed several times: #1342, #1232, #605, #331, #1736, and traefik/traefik#5472

But I see nothing preventing this to exist.

The env vars are not really configurable in the way you're thinking: some providers are more complex to handle configuration than env vars inside lego.

This is not trivial, and for now, I don't have a solution (I already spend a lot of time on this)

Duplicate of #1342

[ldez]

Just a note:

A solution can be to use CNAME: you add CNAMEs redirecting to only one domain, and you will only need one account.

If you have example.org (account foo) and example.com (account bar) you can create a CNAME on example.org called _acme-challenge.example.org pointing to challenge.example.com.
So you need only one account (foo) to handle the challenge for all the accounts/providers.

https://letsencrypt.org/2019/10/09/onboarding-your-customers-with-lets-encrypt-and-acme.html#the-advantages-of-a-cname

[toxic0berliner]

Wow, sorry, 7 issues on the same yes, my bad. At least I'm the 5th to overlook that it had already been requested 🤣

I haven't looked at all providers so I can understand that some might need more than env vars, but I also see that env vars are enough for many, and they don't overlap between providers.
But reading the other issues it also appears to me the simple solution I had in mind won't work for those wanting to use 2 different accounts on the same DNS provider...

Anyhow, I still believe many people want this, and in my case the CName is not practical sadly so I 'm left with repeating my routers twice to change their certresolver... Hope these other issues find a solution 😁