Cluster as a Service Demonstration

Contents

Cluster as a Service Demonstration

Demonstration Sequence

TThis very simple demonstration will show you how users can build an openstack cloud with CaaS (Cluster as a Service) and the nova deployment tool. It has the following sessions:

Launch LXC(Linux Container) for ComputeNode, API, Volume, Network and so on.
Run nova deployment tool
Confirm nova resource (compute node)
Launch LXC for ComputeNode
Re-run nova deployment tool
Confirm increase in nova resource (compute nodes)

You can take a look at the nova deployment tool at http://wiki.openstack.org/NovaInstall/NovaDeploymentTool

Network Configuration

Each cluster is isolated with a tagged VLAN that is handled with NATBox.

NATBox is a gateway for LXC containers.

Out-bound: Eliminate VLANID
In-bound: Append VLANID to transfer packets to the tagged VLAN network

Layers

CaaS(Physical)
- Physical layer. OS is installed on physical machines.
CaaS(LXC)
- LXC layer. A Tagged VLAN isolates LXC containers.
IaaS
- Cloud layer. OpenStack(nova).

Initially, One LXC container is launched on a server and nova is deployed on it by using the nova deployment tool. Finally, Nova is deployed on two physical servers.

Assumption

Ubuntu10.04 is installed on two physical machines
- hostname: host1
- ipaddress: 192.168.2.25
- hostname: host2
- ipaddress: 192.168.2.26
NATBox
- VLAN100 gateway for 192.168.10.0/24
- ipaddress: 192.168.10.1
User
- ubuntu
DeployTool server
- hostname: host1
- ipaddress: 192.168.2.25
LXC Container(for every nova component node)
- hostname: ubuntu011
ipaddress: 192.168.10.50
LXCContainer(for ComputeNode)
- hostname: ubuntu012
- ipaddress: 192.168.10.51