Cheatsheet created from Cybera blog.

  • 2 x 10gb Nics
  • 2 x CPU Cores
  • 1 GB RAM
  • 6 x 1 TB drives

Partitionning of the first four drives

Partition Size Type
Partition 1 300 mb Linux RAID
Partition 2 20 gb Linux RAID
Partition 3 900 gb Linux RAID

Remaining two drives

Partition Size Type
Partition 1 300 mb Linux RAID
Partition 2 20 gb Linux Swap
Partition 3 900 gb Linux RAID

NOTE:: Similar partitions are grouped together to form RAID arrays. Grouping depends on node role (see below)

  • Ubuntu 12.04 (de-facto OpenStack)
  • KVM

Cloud Controller Node

  • Host all the non-compute OpenStack components:
    • nova-api
    • nova-cert
    • nova-consoleauth
    • nova-network
    • nova-objectstore
    • nova-scheduler
    • Keystone
    • Glance
    • Horizon
  • They all use very little resources and can all comfortably fit on one server

RAID Configuration

RAID Device RAID Type Mount Point Partitions
/dev/md0 RAID 1 /boot Disk 1 Partition 1, Disk 2 Partition 2
/dev/md1 RAID10 unused D1P2, D2P2, D3P2, D4P2
/dev/md2 RAID10 / D1P3, D2P3, D3P3, D4P3, D5P3, D6P3

Compute Node

  • Host nova-compute
  • dedicated LVM partition named nova-volumes

RAID Configuration

RAID Device RAID Type Mount Point Partitions
/dev/md0 RAID 1 /boot Disk 1 Partition 1, Disk 2 Partition 2
/dev/md1 RAID10 / D1P2, D2P2, D3P2, D4P2
/dev/md2 RAID10 LVM Nova-volumes D1P3, D2P3, D3P3, D4P3, D5P3, D6P3

Network configuration example

One 100 mb Nic dedicated to PXE, IPMI on only one switch, here is an example network configuration:

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
    address 192.168.255.1
    netmask 255.255.255.0
auto eth3
iface eth3 inet manual
    bond-master bond0
auto eth2
iface eth2 inet manual
    bond-master bond0
auto bond0
iface bond0 inet manual
    bond-slaves none
    bond-mode 802.3ad
    bond-miimon 100
auto vlan422
iface vlan422 inet static
    address 10.0.0.2
    netmask 255.255.255.0
    gateway 10.0.0.1
    dns-nameservers 8.8.8.8
     dns-search private.edu.cybera.ca
    vlan-raw-device bond0
auto vlan423
iface vlan423 inet static
    address 192.168.1.1
    netmask 255.255.255.0
    vlan-raw-device bond0