Acme Certs for multiple domain (1 provider, 1 account)

Traefik Traefik v3 (latest)
1

I successfully use Traefik 3.1.2 configured to serve request for domain01 using DNS challenge with gandi API (with personal access token) .

Part of my configuration :

  rule = "Host(`www.domain01`) 
  ...
    certResolver = "gandi-resolver"
    [[http.routers.www-https.tls.domains]]
      main = "domain01"
      sans = ["*.domain01"]

and

...
[certificatesResolvers.clairac-fr.acme]
email = "my EMail"
storage = "/etc/traefik/acme/acme.json"
[certificatesResolvers.gandi-resolver.acme.dnsChallenge]
provider = "gandiv5"
delayBeforeCheck = 90

I have a second domain domain02(with gandi and the same account. Token is configured to access both domains) and add to the conf:

  rule = "Host(`www.domain02`)" 
  ...
    certResolver = "gandi-resolver"
    [[http.routers.other-https.tls.domains]]
      main = "domain02"
      sans = ["*.domain02"]

I have following error:

Unable to obtain ACME certificate for domains
error presenting token: unable to create TXT record for domain domain-02.com and name _acme-challenge: 400: request failed

I add _acme-challenge.domain01CNAME to challenge.domain02as proposed in traefik documentation on Multiple DNS Challenge provider but still have the same error

If someone have an idea to help me.

To be clear:

  • domain01and domain02are both managed on Gandi, with 1 account.
  • The generated token on gandi have access to both domain configuration
  • I have only 1 traefik instance (docker latest => 3.1.2)
  • I want to generate wildcard certificate for both domain

Thanks

2

Solved.

Problem was from Gandi.
My domain was attached to a "link zone" (Gandi way to create a configuration and share it on multiple domain). Due to this attachment, API can't create TXT or CNAME directly on the domain.

Works fine with domain detached

3

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