HAProxy requires the certificate chain and key to be concatenated and placed somewhere (can be anywhere). This script expects a single environment variable with the path where the concatenated PEM file should be written
The _get_records function currently returns the first 100 records. As our TXT is added most recently, if you have > 100 records it will not be returned.
I've changed the function to sort by ID DESC, so it will always return the latest 100 records.