Docker Plugin for Heat
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This document discusses integrating Docker containers with OpenStack Heat for orchestration. It describes Docker and Heat separately, then introduces a Docker plugin for Heat that allows Heat templates to directly control Docker containers. The plugin enables Heat to orchestrate Docker containers similarly to how it orchestrates virtual machines. A demo is provided of launching a WordPress+MySQL stack on Docker containers using Heat's orchestration capabilities.
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Something changed in job ads over the last few years: everyone wants the DevOps Unicorn. What is that and why did this happen? You probably have a good amount of what is in that description, but is there an easy way to fill in the rest of the 100%? It turns out that it is possible to fake your way to being a DevOps Unicorn. All that you need is a way to know which metrics are the most important. And to know that you need a framework that applies everywhere. No really, it's easier than you think. There is some work needed on your part, but just a few minutes is enough to get started. In this 20 minute session, we will cover what changed in the market, what the framework looks like, and how to apply it to all of the containerized applications you need to monitor.
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Similar to Docker Plugin for Heat
Docker Plugin for Heat II
This document discusses Docker plugin for Heat, which allows orchestrating Docker containers with OpenStack Heat templates. It describes how to install the Docker plugin for Heat, provides an example Heat template to launch a WordPress and MySQL stack, and points to the GitHub project page for more information. Users can deploy Docker containers instead of virtual machines through Heat and leverage the full Docker API through Heat templates.
Docker Basics
Docker is an open source containerization platform that allows applications to be easily deployed and run across various operating systems and cloud environments. It allows applications and their dependencies to be packaged into standardized executable units called containers that can be run anywhere. Containers are more portable and provide better isolation than virtual machines, making them useful for microservices architecture, continuous integration/deployment, and cloud-native applications.
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http://www.amazon.in/Docker-Book-Containerization-new-virtualization-ebook/dp/B00LRROTI4/ref=sr_1_1?ie=UTF8&qid=1422003961&sr=8-1&keywords=docker+book
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Docker Plugin for Heat
- 1. Docker plugin for Heat Orchestrate containers with OpenStack Heat by Sam Alba @sam_alba sam@docker.com November 2013
- 2. What is Docker? “Docker is an open-source project to easily create lightweight, portable, self-sufficient containers from any application.” Source: http://www.docker.io
- 3. Example: run a container Docker: ● downloaded the base image from the public docker index ● created a new Linux Container ● allocated a filesystem for it ● allocated a virtual network interface with a new IP address ● executed a process and captured the output $ docker run ubuntu /bin/echo hello world Pulling repository ubuntu 8dbd9e392a96: Download complete hello world
- 4. 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)
- 5. What is Heat? “Heat implements an orchestration engine to launch multiple composite cloud applications based on templates.” Source: https://wiki.openstack.org/wiki/Heat
- 6. The Docker plugin for Heat By using the plugin, Heat can talk directly to Docker
- 7. Why using Heat directly? ● Heat as a standalone project for orchestration ● 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
- 8. Pros & Cons Nova driver Heat plugin Integration with other services Nova features (quota, auth, etc...) Abstraction layer for other hypervisor Closer to the Docker workflow Easier maintenance over time Easier deployment ➔ Both approaches are simply different ➔ One does not replace the other
- 9. 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
- 10. Demo time! Example with Wordpress+MySQL
- 11. Demo time! Horizon UI > Orchestration > Stacks
- 12. Demo time! Configure the Stack (parameters of the Heat template)
- 14. Demo time!
- 15. What’s next? Design session: “Docker support in OpenStack” ➔ Friday, 11am - AWE Level 2, Room 204-205 Project home page: https://github.com/dotcloud/openstack-heat-docker