Running a Cloud in a VM Use the cloud to build the cloud! Use your cloud to launch new versions of OpenStack in about 5 minutes. When you break it, start over! The VMs launched in the cloud will be slow as they are running in QEMU (emulation), but their primary use is testing OpenStack development and operation. Speed not required. Prerequisites Cloud & Image Virtual Machine DevStack should run in any virtual machine running a supported Linux release. It will perform best with 2Gb or more of RAM. OpenStack Deployment & cloud-init If the cloud service has an image with cloud-init pre-installed, use it. You can get one from Ubuntu's Daily Build site if necessary. This will enable you to launch VMs with userdata that installs everything at boot time. If you are directly using a hypervisor like Xen, kvm or VirtualBox you can manually kick off the script below in a bare-bones server installation. Installation shake and bake Launching with using Userdata The userdata script grabs the latest version of DevStack via git, creates a minimal localrc file and kicks off stack.sh. #!/bin/sh apt-get update || yum update -y apt-get install -qqy git || yum install -y git git clone https://github.com/openstack-dev/devstack.git cd devstack echo ADMIN_PASSWORD=password > localrc echo MYSQL_PASSWORD=password >> localrc echo RABBIT_PASSWORD=password >> localrc echo SERVICE_PASSWORD=password >> localrc echo SERVICE_TOKEN=tokentoken >> localrc ./stack.sh Launching By Hand Using a hypervisor directly, launch the VM and either manually perform the steps in the script above or copy it into the VM. Using OpenStack At this point you should be able to access the dashboard. Launch VMs and if you give them floating IPs access those VMs from other machines on your network. One interesting use case is for developers working on a VM on their laptop. Once stack.sh has completed once, all of the pre-requisite packages are installed in the VM and the source trees checked out. Setting OFFLINE=True in localrc enables stack.sh to run multiple times without an Internet connection. DevStack, making hacking at the lake possible since 2012!
Wednesday, September 4, 2013
openstack cloud in the cloud
from: http://devstack.org/guides/single-vm.html works fine with ubuntu 12 lts on vmware esx 5.1