cooking with openstack heat
TRANSCRIPT
OpenStack’s Orchestration Service
Cookin’ with Heat
Eric WilliamsDevOps Specialist
Rackspace Ltd., UK
DevOps Exchange London18 February 2015
9 WorldwideData Centers
5,000+ Rackers
Global Footprint
Customers in 120+ Countries
Annualized RevenueOver $1B
3www.rackspace.com
About Rackspace
60% 100OF
THE
We Serve FORTUNE®
OV
ER
200,000+
90,000+ Servers
26,000+ VM
≅70 PB Stored
Customers
Portfolio of Hosted SolutionsDedicated - Cloud - Hybrid
OpenStack
OPEN SOURCE
APACHE 2.0 LICENCE
OPEN DESIGN
ANYONE CAN HELP DEFINE CORE ARCHITECTURE
OPEN
DEVELOPMENT
ANYONE CAN INVOLVE DEVELOPMENT PROCESS VIA LAUNCHPAD & GITHUB
OPEN COMMUNITY
www.rackspace.com 5
Heat
“Managing the entire lifecycle of infrastructure and applications within OpenStackclouds”
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Heat: Who’s Involved
Source: Stackalytics.com
Heat contributions• Public Cloud Providers
• Operating System Vendors
• Systems Integrators
• Telecommunications
• A replacement for configuration management
• Hipster-DevOps
Heat: What it isn’t
Where does Heat fit in?
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Orchestration Configuration Management
Heat
Chef
SaltStack
Ansible
Vagrant
Puppet
What’s Included
Heat Service
Infrastructure
Cloud Networks
Cloud Block Storage
Cloud Databases
Cloud Servers
Object Storage (Swift)
Service Management
Autoscaling
Chef::Solo
Cloud Monitoring
Auxiliary Services
Cloud Load Balancers
Cloud DNS
Message Queues
What does it look like?
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Infrastructure as Code
resources:
db:
type: ”OS::Nova::Server"
properties:
name: rs-ehwio-db
image: Ubuntu 14.04 LTS
flavor: 4 GB Performance
key_name: ewmb
app:
type: Rackspace::AutoScale::Group
…
$ heat stack-create –f test.yaml TestStack01
DB
APPAPP APP
LB
CACHE
TestStack01
Repeatability
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DB
APPAPP APP
LB
CACHE
TestStack02
DB
APPAPP APP
LB
CACHE
TestStack03
DB
APPAPP APP
LB
CACHE
TestStack04
DB
APPAPP APP
LB
CACHE
TestStack01
$ for i in 0{1..4}; do
> !!:s/01/$i
>done
Parameterization
heat stack-create \
–f multiserver.yaml \
–P “num_servers=2” GoodStack01
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DB
APP APP
LB
CACHE
GoodStack01
Parameterization
heat stack-create \
–f multiserver.yaml \
–P “num_servers=1000” YoloStackLOLOL
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DB
APP
APP
LB
CACHE
YoloStackLOLOL
APPAPP
APPAPP
APP
APP
APP
APP
APPAPP APP
APP
APP
APP APP
APP APPAPP
APP
APP APP
APP
CACHE
APPAPP
APPAPP
APP
APP
APP
APPAPP APP
APPAPP APP
APP
APP APP
Heat Templates
• Resources
– Servers
– Databases
– Load Balancers
– Scaling Groups
• Parameters
– SSH Keys
– Chef secrets
– Name or Number of Resources
• Outputs
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description:
resources:
parameters:
Command Line
$ heat stack-create wp_stack \
–f lb-app-db.yaml
$ heat stack-list
$ heat stack-update wp_stack \
-f lb-app-db-fixed.yaml
Rackspace Cloud Portal
Predefined Stacks
Rackspace Cloud Portal (continued)
Custom Stacks
OpenStack Dashboard
OpenStack Dashboard (continued)
OpenStack Dashboard (continued)
Opportunities for Improvement
• Better integration with external services
• Dealing with Failure
• That logo*
SRSLY?
Get involved
Rackspace Developer+ : http://developer.rackspace.com/
DevStack : http://devstack.org
Rackspace Orchestration Templates: http://git.io/Nj4e
THANK YOU
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