Ubiquiti removed keytool (and java) from recent releases of Unifi OS. This moves from keytool to openssl's native pkcs12.
Tested on Unifi Dream Machine which runs Unifi OS and a built-in Unifi controller.
Also added backup of existing files prior to change in case anything goes wrong, and update system configuration with compatible ciphers.
Checks if a subdomain already exists before creating one. The loopia API clears all records for a subdomain when adding it again.
Adding TXT-records instead of updating the existing record when using the add method. Wildcard certificates require multiple TXT-records for the same subdomain.
Now you can create wildcard certificates using:
`acme.sh --issue -d example.com -d '*.example.com' --dns dns_loopia`
Double quoting variables