I am new to Traefik and i'm trying to deploy portainer with a reverse proxy and letsencrypt: i used the same configuration on the starting guide (Deploying Portainer behind Traefik Proxy - Portainer Documentation). The server where i'm deploying it has a wildcard domain like *.mydomain.it
After being started, Traefik does the initial configuration, but after a while throws an error 400 in the logs.
Here is the error (mydomain.it is my root domain):
time="2022-04-04T23:19:39Z" level=error msg="Unable to obtain ACME certificate for domains "portainer.mydomain.it": unable to generate a certificate for the domains [portainer.mydomain.it]: error: one or more domains had a problem:\n[portainer.mydomain.it] acme: error: 400 :: urn:ietf:params:acme:error:dns :: DNS problem: NXDOMAIN looking up A for portainer.mydomain.it - check that a DNS record exists for this domain; DNS problem: NXDOMAIN looking up AAAA for portainer.mydomain.it - check that a DNS record exists for this domain\n" providerName=le.acme ACME CA="###" routerName=frontend@docker rule="Host(
Can anyone help me with this error? I think its something really trivial but i'm stuck, and after 5 errors i need to wait an hour because i get an error 429 for too many failed attempts so its getting really long.
Thanks in advance!!