FreeBSD 12.0 OpenStack image creation

This was adapted from this document

ISO image creation

Download ISO image, then run:

openstack image create --file ~/Downloads/FreeBSD-12.0-RELEASE-amd64-disc1.iso --disk-format iso --container-format bare "FreeBSD-12.0-RELEASE-amd64-disc1.iso"

Set image_id using id of created image.

Installation

# The minimal FreeBSD installation requires around 600MB
openstack volume create --size 1 "FreeBSD-12.0-RELEASE-root"

Set volume_id using id of created volume.

Next, boot the installer:

openstack server create --image=$image_id --key-name $ssh_key --flavor m1.small --network $network_id --block-device-mapping "vdb=$volume_id:::0" "FreeBSD-12.0-RELEASE-install"

Set install_vm_id using id of created VM.

Now go to the OpenStack console for this VM, and run through the installation sequence:

Perform standard FreeBSD install
Distribution select: No package sets (keep minimal)
Partitioning: Auto (ZFS)
Partition: Set swap partition to 0, use stripe
Root password: toor (temporary)
Network configuration: vtnet0, IPv4 DHCP, IPv6 SLAAC, default resolver setup
Clock: UTC
Timezone: UTC
System configuration: sshd, dumpdev
System hardening: Clean /tmp, Disable remote syslog, Disable sendmail
Add user accounts: None
Open shell
- run shutdown -p now

Now stop and remove the installation VM, retaining the volume:

# Seems pointless if already stopped; can be skipped
openstack server stop $install_vm_id

openstack server remove volume $install_vm_id" "$volume_id

openstack server delete $install_vm_id

Post-installation

Make the volume bootable using Horizion UI
Start up a new VM using our installation volume using Horizon UI

Configure the console for OpenStack

cat <<EOF >>/boot/loader.conf
console="comconsole,vidconsole"
autoboot_delay="1"
EOF

Install cloud-init

pkg install py26-cloud-init ca_root_nss
echo "cloudinit_enable="YES" >> /etc/rc.conf

Configure dual-stack network with DHCP

Install dual-dhclient

pkg install dual-dhclient

Configure /etc/rc.conf accordingly

dhclient_program="/usr/local/sbin/dual-dhclient"
ifconfig_vtnet0="DHCP"
ifconfig_vtnet0_ipv6="inet6 accept_rtadv"
rtsold_enable="YES"

Clean up

# Remove cloud-init configured settings from rc.conf
grep -v hostname= /etc/rc.conf |grep -v ifconfig_vtnet0= > /x && mv /x /etc/rc.conf
truncate -s0 /etc/resolv.conf

set history = 0
history -c
rm -rf /root/.ssh /root/.history
rm -rf /var/log/*

# Remove SSH keys
rm /etc/sshd/ssh_host*

# Remove temporary root password (only do this once you verified your setup!)
vipw # Exchange the password hash for root with *, analogue to the other system users

# Remove cloud-init configuration
rm -rf /run/cloud-init /var/lib/cloud

# In case you logged in using the default cloud-init user, make sure to remove the user as well
rmuser freebsd

# Shutdown the system
shutdown -p now

Remove the configuration VM:

openstack server delete "$configure_vm_id"

Create OpenStack image

Finally, create an OpenStack image from this volume:

openstack image create --volume $volume_id FreeBSD-12.0-RELEASE

This will be used to create new VMs.

bobhenkel/freebsd-image.md