This is a workshop done on codemonsters.pro technological conference. It illustrates how you can create and deal with vm and container virtual infrastructures and combine them in a useful way.

1. From OpenStack to Docker
swarm
Nikolay Milovanov
New Bulgarian University
nmilovanov@nbu.bg

2. OpenStack facts and figures
• Cloud IAAS automation stack
• Began 2010 as a project between NASA &
RackSpace
• First Component is the hypervisor Nebula which
now is called Nova
• Distributed under Apache license
• Developed by a community of around 1800 active
committers (increased from 400 to 1500 for less
than an year…)

3. OpenStack facts and figures
• Managed by OpenStack Foundation
• Evolves based on a coordinated 6-month
release cycle with frequent development
milestones
• Currently has 14 releases
– 15th Ocata is scheduled for Feb 2017 (Apr 2017)

4. OpenStack releases and component evolution
Austin 21-Oct-10 Nova, Swift
Bexar 3-Feb-11 Nova, Glance, Swift
Cactus 15-Apr-11 Nova, Glance, Swift
Diablo 22-Sep-11 Nova, Glance, Swift
Essex 5-Apr-12 Nova, Glance, Swift, Horizon, Keystone
Folsom 27-Sep-12 Nova, Glance, Swift, Horizon, Keystone, Quantum, Cinder
Grizzly 4-Apr-13 Nova, Glance, Swift, Horizon, Keystone, Quantum, Cinder
Havana
17-Oct-13
Nova, Glance, Swift, Horizon, Keystone, Neutron, Cinder,
Heat, Ceilometer
Icehouse
17-Apr-14
Nova, Glance, Swift, Horizon, Keystone, Neutron, Cinder,
Heat, Ceilometer, Trove
Juno
16-Oct-14
Nova, Glance, Swift, Horizon, Keystone, Neutron, Cinder,
Heat, Ceilometer, Trove, Sahara
Kilo
Apr-15
Nova, Glance, Swift, Horizon, Keystone, Neutron, Cinder,
Heat, Ceilometer, Trove, Sahara, Ironic, Zaqar, Manila,
Designate, Barbican
Liberty Oct-15
Mitaka Apr-16
Newton Oct-15
MAGNUM, designate
Focus has shifted towards improving the existing once

5. OpenStack high level arch diagram

6. Docker
• Docker is an open-source project that automates
the deployment of Linux applications inside
software containers
• Docker is a wrapper on top of liblxc/libcontainer
which are wrappers of a couple of key kernel
features
– namespaces, originally developed by IBM, wrap a set
of system resources and present them to a process to
make it look like they are dedicated to that process.
– cgroups, originally developed by Google, govern the
isolation and usage of system resources, such as CPU
and memory, for a group of processes

7. Docker Swarm
• Native clustering for Docker
• Turns a pool of Docker hosts into a single,
virtual Docker host
• Allows us to do clusters of docker containers

8. NBU
• First and largest private university in Bulgaria
• First to introduce credit system
• Has started from two apartments
• Now has about 14000 students
• Mostly humanitarian university
• Clear separation between administration and academic
• Technology programs are in
– Telecommunications
– Informatics
• OpenStack lab is hosted by Telecommunications
department in Building 2, lab 701a

9. TIME FOR FUN

10. Scenario
• In an OpenStack tenant we will :
– create virtual network, subnet and a router
– play a bit with the native OpenStack security
functionalities such as keys and access-groups
– deploy a VM from an cloud image

11. That’s what we have to achieve

12. Second part
• inject user-data and do fun with the VM
• deploy automatically docker& docker swarm
into an OpenStack VM
• If we do all that, we are a real heroes and will
play with some containers on top of the
swarm cluster

13. To do the exercise you will need
OpenStack clients
• Those will hit straight OpenStack REST APIs
• You need to install:
– pip install python-novaclient
– pip install python-neutronclient
– pip install python-glanceclient
• Credentials
– User: ….
– Tenant: ….
– Password: ….
– GUI (you won’t need it but anyway)
– http://java2days.telecom.nbu.bg/dashboard
• Slides and workshop scripts
– https://goo.gl/sA2xmt

14. From OpenStack to Docker swarm
nmilovanov@nbu.bg