I recently migrated Traefik for a single host deployment to a HA cluster backed by consul.
I initially got the permissions wrong and Traefik was unable to claim a lock session needed for cluster leader election, the logs were full of:
Node <uuid> elected worker Leadership elector error Unexpected response code: 403 (rpc error making call: Permission denied)
I fixed the permissions, and it seems to have gone through a successful election, 3 workers, one leader.
Now, after submitting a new ingress object, any node that handles the request, leader or worker, produces the following logs, and never issues a cert:
level=debug msg="Looking for an existing ACME challenge for mydomain.com..." level=debug msg="No provided certificate found for domains mydomain.com, get ACME certificate."
I've cleared the consul lock manually to force a new election. I've rebooted nodes to force them to rejoin the cluster. Verified that mydomain.com is pointed to the cluster and is being served by traefik. No luck. No error logs from ACME about rate limiting or anything, looks like it just never tried to issue it.
Traefik version: 1.7.12
Consul version: 1.5