The document describes the integration of Docker with OpenStack Heat, an orchestration engine for launching composite cloud applications. It explains how to use Heat directly with Docker, installing necessary components, and provides a demonstration using WordPress and MySQL. Resources for further assistance and project information are also included.

1. Docker plugin for Heat
Orchestrate containers with OpenStack Heat
by Sam Alba
@sam_alba
sam@dotcloud.com
Oct 2013

2. What is Heat?
“Heat implements an orchestration engine to
launch multiple composite cloud applications
based on templates.
”
Source: https://wiki.openstack.org/wiki/Heat
Oct 2013

3. Docker in OpenStack Havana
Nova supports Docker as a new hypervisor starting with the
Havana release
➔ Deploy containers instead of VM with the same API (Nova)
Oct 2013

4. Why using Heat directly?
● This is not a replacement to the Nova driver!
● It allows to use the whole Docker API from a Heat
template
Resources:
Blog:
Type: OS::Heat::Docker
Properties:
Image: samalba/wordpress
Env:
- DB_PORT=42
Oct 2013

5. How to use it?
1.
Install Heat with DevStack: https://wiki.openstack.
org/wiki/Heat/GettingStartedUsingDevstack
2.
Install the Docker plugin
# Clone the repos
git clone git@github.com:dotcloud/openstack-heat-docker.git
# Link the plugin so Heat can find it
ln -sf $(cd openstack-heat-docker/plugin; pwd) /usr/lib/heat/docker
Oct 2013

6. Demo time!
Example with Wordpress+MySQL

7. Demo time!
Horizon UI > Orchestration > Stacks
Oct 2013

8. Demo time!
Configure the Stack (parameters of the Heat template)
Oct 2013

9. Demo time!
Launch it
Oct 2013

10. Demo time!
Oct 2013

11. Run it yourself!
Project home page:
https://github.com/dotcloud/openstack-heat-docker
… and please ask for help:
#docker on irc.freenode.org
Oct 2013

12. Questions?
Oct 2013