inaugust.com/src/three-minute-demo

3 Minute Demo of OpenStack Public Clouds

This is all the Ansible needed for the 3 minute public cloud demo.

It uses docker containers to avoid the need to install things on the local computer. The Dockerfile uses the base python docker image regardless of other distro since it's just a container for installing ansible.

Note

There is nothing docker-specific about the demo, it's just being used as a convenient way to bundle actions without polluting the user's computer. The playbooks themselves can be used directly for people who have the pre-reqs of ansible, shade and diskimage-builder installed or who do not mind installing them globally.

Building Docker Image

Step one is building the docker image:

docker build -t three-minute-demo .

A convenience script, build-docker-image.sh is provided that runs that command.

Wrapper Script

Once the three-minute-demo image exists, the ansible-playbook.sh script will user it to run ansible-playbook. By default it will run the run.yaml playbook, but that can be overridden by passing parameters to the script.

The ansible-playbook.sh script will also bind-mount the current directory as the main work dir and ~/.config/openstack into /etc/openstack in the container so that clouds.yaml is available.

Note

If ~/.config/openstack doesn't exist but /etc/openstack does, ansible-playbook.sh will mount /etc/openstack instead. If a different setup is desired, you can always run docker commands.

Building and Uploading Images

The demo depends on base images existing. The prep.yaml playbook will create the images and upload them to all of the cloud regions.

./ansible-playbook.sh prep.yaml

By default it will create a minimal ubuntu image. That can be changed by setting distro on the ansible-playbook command line to something else, such as fedora or centos.

./ansible-playbook.sh -edistro=fedora prep.yaml

The Demo

ansible-playbook.sh defaults to running demo.yaml, which will create a server in each cloud region, install Apache on that server, write out a json file for apache to serve, fetch the contents into a variable and print out the FQDN.

If you're thinking "wow, that's not useful" - you're right! This isn't intended to be a demo of doing useful things with Ansible. It's intended to be a demo of getting servers on a set of cloud regions across multiple public clouds and then doing something with them.

Once you can perform a single task on the remote server with Ansible, you can do anything with Ansible you want to do.