OpenStack101 vBrownBagLatAm 2016

ALVARO SOTO @2016 OPENSTACK & CEPH ENGINEER

OPENSTACK 101 / VBROWNBAG LATAM

WHOAMI

▸ Software developer (python lover).

▸ Full Linux sysadmin stack.

▸ Fan of “Design for Failure” architectures.

▸ Cepher / Stacker



AGENDA

▸ Open what?

▸ The born of…

▸ Core components

▸ Release history

▸ OpenStack architecture

▸ Where to start

▸ Where to go next


OPEN WHAT?

OpenStack is a free and open-source software platform for cloud computing, mostly deployed as an infrastructure-as-a-service (IaaS).

The software platform consists of interrelated components that control hardware pools of processing, storage, and networking resources throughout a data center. Users either manage it through a web-based dashboard, through command-line tools, or through a RESTful API. (From https://wikipedia.org)


THE BORN OF…


SUPPORTING COMPANIES (SOME OF)


ONE OF THE FASTEST GROWING OPEN SOURCE COMMUNITIES IN THE WORLD.


CORE COMPONENTS

NOVA

▸ Compute / IaaS.

▸ Relies on Keystone for authentication and authorization of all API requests.

▸ Handle pool of computer resources.

▸ Hypervisor agnostic.

▸ Designed to scale horizontally on standard hardware.

▸ Nova interacts heavily with other OpenStack services like Keystone for performing authentication, Horizon for its Web interface and Glance for supplying its images.


NEUTRON

▸ Networking component managing IP addresses.

▸ Relies on Keystone for authentication and authorization of all API requests.

▸ Nova interacts with Neutron through API calls. As part of creating an instance, nova-compute communicates with the Neutron API to plug each virtual NIC.

▸ Horizon has a basic integration with the Neutron API, and allows tenants to create networks and subnets.

▸ There are two categories of networks that can be created within Neutron: Provider Networks, Tenant Networks.


CINDER

▸ Block Storage provides persistent block-level storage devices for use with OpenStack compute instances.

▸ Manages the creation, attaching and detaching of the block devices to servers.

▸ Permits organisations that deploy it to make available a catalog of block-based storage devices with differing characteristics (tiers).

▸ Basic storage capabilities such as snapshot management and volume clones, which are often enhanced through vendor-specific drivers.


KEYSTONE

▸ Provides a central directory of users mapped to the OpenStack services they can access.

▸ Architecturally, Keystone is simple. It processes all the API requests, providing Identity, Token, Catalog, and Policy services. It is organized as a group of front-end services exposed via the API network.


GLANCE

▸ Provides discovery, registration, and delivery services for disk and server images.

▸ Stored images can be used as a template.

▸ It can also be used to store and catalog an unlimited number of backups.

▸ Glance can store disk and server images in a variety of back-ends


SWIFT

▸ Is a scalable redundant storage system.

▸ Objects and files are written to multiple disk drives spread throughout servers in the data center.

▸ Storage clusters scale horizontally simply by adding new servers.

▸ If a server of disk fail, swift replicates its content from other active nodes to new locations in the cluster.

▸ Because OpenStack uses software logic to ensure data replication and distribution across different devices, commodity hardware can be used.


HORIZON

▸ Provides administrators and users a graphical interface to access, provision, and automate cloud-based resources.

▸ The dashboard is also brandable for service providers.

▸ It not provides all the power of the API or CLI.

▸ Not state whatsoever.

▸ Fully developed in Django and the design provides and easy way to accommodate third party products and services.


HEAT

▸ Service to orchestrate multiple composite cloud applications using templates.

▸ YAML templates.

▸ Uses OpenStack-native REST API.

▸ Useful to create HA architectures or specific deploy of instances.


OTHER PROJECTS

▸ Database (Trove)

▸ Elastic Map Reduce (Sahara)

▸ Bare Metal (Ironic)

▸ Messaging (Zaqar)

▸ Shared File System (Manila)

▸ DNS (Designate)

▸ Search (Searchlight)

▸ Key Manager (Barbican)

▸ Containers (Magnum)


RELEASE HISTORY


OPENSTACK ARCHITECTURE


WHERE TO START

▸ DevStack:

▸ http://docs.openstack.org/developer/devstack/

▸ Deploy tools:

▸ JUJU

▸ Ansible

▸ Puppet

▸ Chef


http://docs.openstack.org/developer/devstack/

WHERE TO GO NEXT


THANKS!!!!

Q & A


CONTACT INFO

▸ Twitter: @alsotoes

▸ E-Mail: [email protected] / [email protected]

▸ Web / Blog: http://headup.ws

▸ IRC: khyron

▸ Code: https://github.com/alsotoes


mailto:[email protected]

mailto:[email protected]

http://headup.ws

https://github.com/alsotoes

OpenStack101 vBrownBagLatAm 2016

Technology

Transcript of OpenStack101 vBrownBagLatAm 2016