Running Docker with OpenStack | Docker workshop #1

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Presentation of the Docker hypervisor for OpenStack Nova for the Havana release

Tecnologia

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

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 sam@dotcloud.com 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

10. Questions? 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

Running Docker with OpenStack | Docker workshop #1

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