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Documentation/training-labs

< Documentation
Revision as of 00:37, 19 January 2016 by Bernd Bausch (talk | contribs) (Dependencies)

About training labs

Openstack Lab scripts installs a working OpenStack cluster on your computer. They are faster, reproducible and automated way of following OpenStack [install guides] to install a cluster into VirtualBox/KVM and should run on most common hardware (Desktops/Laptops) out of the box.

Supported Platforms

The scripts support Linux, Mac OS X, and Windows as host operating systems. They currently install the Kilo, Juno and Icehouse release of OpenStack on Ubuntu 14.04 LTS.

Dependencies

On all supported platforms, you need to have VirtualBox installed.

You also need git in order to download the training labs repo, for example:

git clone git://git.openstack.org/openstack/training-labs.git

Additional requirements for Windows:

  • access to a POSIX environment (Linux, OS X, UNIX, Cygwin, ...) to run a bash script to generate DOS batch files.
  • the distribution ISO image in the labs/img directory. If the file is not there, the DOS batch program won't be downloaded automatically; rather, it will print the download URL and exit.
  • an ssh client such as Putty, or the openssh client in Cygwin.

Building the cluster

Expect the base disk build to take between 15 and 30 minutes; building the node VMs takes another 15 to 30 minutes.

On all platforms, log files are written to the labs/log directory while the cluster is building.

Linux and Mac OS X

Change to the labs directory and enter this command:

./osbash -b cluster

The command builds a base disk which contains the operating system and the software needed for the OpenStack cluster. After the base disk, the command builds three node VMs (controller, compute, network).

If you execute the same command again, the existing node VMs are deleted and recreated based on the existing base disk. If you want to rebuild the base disk, too, either delete the disk file in the labs/img directory, or use this command:

./osbash -b basedisk

Windows

Generate DOS batch files

The batch files that create the cluster need to be generated once. You need to do this in a POSIX environment that contains bash - a Linux or UNIX installation is fine, but also Cygwin.

In a POSIX environment, go to .../training-labs/labs/osbash and run

cd training-labs/labs/osbash
./osbash.sh -w cluster

The DOS batch files are created in a new directory named wbatch. Transfer them to Windows.

Creating the cluster under Windows

create_hostnet.bat
Creates the host-only networks used by the node VMs to communicate. The script asks for elevated privileges which are needed for that task. You only need to run this script once, the network configuration is saved by VirtualBox. You can verify the configured networks in the VirtualBox GUI: File->Preferences->Network->Host-only Networks.
create_base.bat
Creates the base disk. You only need to run this once (and every time you want to update the base disk).
create_ubuntu_cluster_node.bat
Creates the node VMs.

Note: The Windows batch scripts still have some limitations. For instance, if they find an existing node VM of the same name, they print an error and exit. Do not start a batch script if another one is still running.

Using the cluster

By default, the cluster is built in headless mode. In that case, the way to access your node VMs is a secure shell (ssh). The localhost's TCP ports 2230 through 2232 are forwarded to the node VMs' ssh daemons.

To get a shell on the controller VM, for instance, use (the password is osbash):

ssh -p 2230 osbash@localhost

If you would like console windows for your VirtualBox VMs, stop the VMs and start them again from the VirtualBox GUI.

Alternatively, in order to have the console always on, even during the build, add the "-g gui" option to your osbash commands. For instance:

./osbash -g gui -b cluster
./osbash -g gui -b basedisk
./osbash -g gui -w cluster

Horizon is also accessed via a forwarded port. Use this URL to access the GUI:

http://127.0.0.1:8888/horizon

Two accounts are configured: admin/admin_pass and demo/demo_pass.

Quick Links

Meeting Information

Team Members

  • Pranav Salunke, IRC: dguitarbite
  • Roger Luethi, IRC: rluethi
  • Bernd Bausch, IRC: berndbausch
  • Name, IRC: Nick, role/interests.