found this
ubuntu@hyper11:~$ sunbeam generate-preseed
addons:
# MetalLB address allocation range
metallb: 10.20.21.10-10.20.21.20
user:
# Populate OpenStack cloud with demo user, default images, flavors etc
run_demo_setup: True
# Username to use for access to OpenStack
username: demo
# Password to use for access to OpenStack
password: fT6y9CKIWAAN
# Network range to use for project network
cidr: 192.168.122.0/24
# Enable ping and SSH access to instances?
security_group_rules: True
# Local or remote access to VMs
remote_access_location: local
# Local Access
external_network:
# CIDR of OpenStack external network - arbitrary but must not be in use
cidr: 10.20.20.0/24
# Start of IP allocation range for external network
start:
# End of IP allocation range for external network
end:
# Network type for access to external network
network_type: flat
# VLAN ID to use for external network
segmentation_id:
# # Remote Access
# external_network:
# # CIDR of network to use for external networking
# cidr: 10.20.20.0/24
# # IP address of default gateway for external network
# gateway:
# # Start of IP allocation range for external network
# start:
# # End of IP allocation range for external network
# end:
# # Network type for access to external network
# network_type: flat
# # VLAN ID to use for external network
# segmentation_id:
# # Free network interface that will be configured for external traffic
# nic:
# MicroCeph config
microceph_config:
hyper11:
# Disks to attach to MicroCeph
osd_devices: