+USE_LETSENCRYPT_IAM_USER="yes"
+# For collections, we need to obtain a wildcard certificate for
+# '*.collections.<cluster>.<domain>'. This is only possible through a DNS-01 challenge.
+# For that reason, you'll need to provide AWS credentials with permissions to manage
+# RRs in the route53 zone for the cluster.
+# WARNING!: If AWS credentials files already exist in the hosts, they won't be replaced.
+LE_AWS_REGION="us-east-1"
+LE_AWS_ACCESS_KEY_ID="AKIABCDEFGHIJKLMNOPQ"
+LE_AWS_SECRET_ACCESS_KEY="thisistherandomstringthatisyoursecretkey"