+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"
+
+# If you going to provide your own certificates for Arvados, the provision script can
+# help you deploy them. In order to do that, you need to set `USE_LETSENCRYPT=no` above,
+# and copy the required certificates under the directory specified in the next line.
+# The certs will be copied from this directory by the provision script.
+CUSTOM_CERTS_DIR="./certs"
+# The script expects cert/key files with these basenames (matching the role except for
+# keepweb, which is split in both downoad/collections):
+# "controller"
+# "websocket"
+# "workbench"
+# "workbench2"
+# "webshell"
+# "download" # Part of keepweb
+# "collections" # Part of keepweb
+# "keep" # Keepproxy
+# Ie., 'keep', the script will lookup for
+# ${CUSTOM_CERTS_DIR}/keep.crt
+# ${CUSTOM_CERTS_DIR}/keep.key