We currently use some wildcard certificates for our SSL encryption. So example.com, sub.example.com and example2.com show the data of the purchased SSL certificate. Routing is established via Docker Swarm service discovery with labels on the services for the domain name.
tls:
options:
default:
minVersion: VersionTLS12
certificates:
- certFile: /data/traefik/certs/example.com.crt
keyFile: /data/traefik/certs/example.com.key
- certFile: /data/traefik/certs/example2.com.crt
keyFile: /data/traefik/certs/example2.com.key
Is it possible to enable LetsEncrypt in parallel, so it only creates certificates for domains that do not have a purchased certificate already installed (like example-test.com)?