Some pointers on win-acme and load balancing.
It really depends if you’re using a separate appliance to offload HTTPS or if it’s handled by the servers in the pool themselves. In the latter case you should probably use the Central Certificate Store feature of IIS. Instructions on how to configure win-acme to use it can be found here.
settings.jsonof win-acme to somewhere on your SAN, so that any member of the pool can potentially renew the certificates.
The encryption for the config files will have to be disabled via
settings.json so that all machines
in the cluster can read the passwords.
If you are using an appliance then you have to use their API and call into that from a
using an installation script.