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Running Docker with OpenStack | Docker workshop #1

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The document discusses new features in the upcoming Havana release of OpenStack Nova that will allow it to deploy and manage containers using Docker instead of just virtual machines. Specifically, it provides instructions for using DevStack to install and test Docker support in Nova, such as cloning the DevStack repository, setting the VIRT_DRIVER variable to Docker, running Docker install and test scripts, launching a Docker container as a Nova instance, and pushing public Docker images to Glance.

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New Nova hypervisor in Havana Deploy Containers instead of VMs by Sam Alba @sam_alba sam@dotcloud.com Sep 2013
What is all of that? ● Nova is a computing controller for OpenStack ● Havana is the name of the next release (10/17/2013) ● Nova already supports several hypervisors: ○ KVM (through qemu), Xen, VMWare, HyperV, PowerVM, etc... ○ Docker Sep 2013 Nova is not just for Virtual Machines... it’s a computing controller!
Under the hood... Sep 2013 Source: https://wiki.openstack.org/wiki/Docker
How to use it? (with DevStack) Sep 2013 Prerequisites: ● Ubuntu Precise 12.04 ● Kernel >3.2 supporting AUFS ● >=1.5 GB of RAM available ● Check that socat and git installed sudo apt-get install socat git
How to use it? (with DevStack) Sep 2013 Install devstack and docker … and test that everything went well git clone https://github.com/openstack-dev/devstack.git cd devstack echo VIRT_DRIVER=docker >> localrc ./tools/docker/install_docker.sh ./stack.sh ./exercises/docker.sh
How to use it? (with DevStack) Sep 2013 Start a container! cd devstack . openrc nova boot --image "docker-busybox:latest" --flavor m1.nano myinstance nova show myinstance docker ps
How to use it? (with DevStack) Sep 2013 Use public images! It requires to duplicate images to Glance (by using docker) cd devstack . openrc docker pull vieux/goplay HOST_IP=$(docker images | grep :5042/docker-busybox | cut -d: -f1) docker tag vieux/goplay $HOST_IP:5042/vieux/goplay docker push $HOST_IP:5042/vieux/goplay
Horizon (web UI) Launch a new instance... Sep 2013
Horizon (web UI) Launch a new instance... Sep 2013
Questions? Sep 2013
Run it yourself! Sep 2013 Read the documentation: https://wiki.openstack.org/wiki/Docker … and please ask for help: #docker on irc.freenode.org

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Running Docker with OpenStack | Docker workshop #1

  • 1. New Nova hypervisor in Havana Deploy Containers instead of VMs by Sam Alba @sam_alba [email protected] Sep 2013
  • 2. What is all of that? ● Nova is a computing controller for OpenStack ● Havana is the name of the next release (10/17/2013) ● Nova already supports several hypervisors: ○ KVM (through qemu), Xen, VMWare, HyperV, PowerVM, etc... ○ Docker Sep 2013 Nova is not just for Virtual Machines... it’s a computing controller!
  • 3. Under the hood... Sep 2013 Source: https://wiki.openstack.org/wiki/Docker
  • 4. How to use it? (with DevStack) Sep 2013 Prerequisites: ● Ubuntu Precise 12.04 ● Kernel >3.2 supporting AUFS ● >=1.5 GB of RAM available ● Check that socat and git installed sudo apt-get install socat git
  • 5. How to use it? (with DevStack) Sep 2013 Install devstack and docker … and test that everything went well git clone https://github.com/openstack-dev/devstack.git cd devstack echo VIRT_DRIVER=docker >> localrc ./tools/docker/install_docker.sh ./stack.sh ./exercises/docker.sh
  • 6. How to use it? (with DevStack) Sep 2013 Start a container! cd devstack . openrc nova boot --image "docker-busybox:latest" --flavor m1.nano myinstance nova show myinstance docker ps
  • 7. How to use it? (with DevStack) Sep 2013 Use public images! It requires to duplicate images to Glance (by using docker) cd devstack . openrc docker pull vieux/goplay HOST_IP=$(docker images | grep :5042/docker-busybox | cut -d: -f1) docker tag vieux/goplay $HOST_IP:5042/vieux/goplay docker push $HOST_IP:5042/vieux/goplay
  • 8. Horizon (web UI) Launch a new instance... Sep 2013
  • 9. Horizon (web UI) Launch a new instance... Sep 2013
  • 11. Run it yourself! Sep 2013 Read the documentation: https://wiki.openstack.org/wiki/Docker … and please ask for help: #docker on irc.freenode.org