introduction to openstack heat

keeps the clouds up ;)

Agenda

• Overview • Architecture • Bootstrap Methods • Heat JEOS • Oz • CloudFormation Scripts • Template Dissection • Advanced Services • Status & Roadmap • Next Steps

13-10-2012 keeps the clouds up ;) 2

Copyright © PicGifs.com - 2008 / 2011 - All rights reserved

Overview

• REST API to orchestrate multiple composite cloud applications • AWS CloudFormation implementation for OpenStack API • Orchestrates apps, called as stack, by executing a CloudFormation template • Allows creation of resource types - instances, floating IPs, volumes, security

groups, users, etc. • Some advanced services - HA, auto-scaling and nested stacks • Compatible with AWS CloudFormation legacy (CLI based on boto and compatible

API) • Integrates well with Puppet and Chef • OpenStack style project

– Tight integration with other OpenStack projects – Python 2, matching OpenStack design principals – ASL V2 License and hosted on Github – Integrated with Stackforce (OpenStack workflow gerrit/jenkins)

• Started in March, 2012 • Active community of 9 developers (All from Red Hat)

13-10-2012 keeps the clouds up ;) 3

@sdake

Architecture

13-10-2012 keeps the clouds up ;) 4

Source: http://heat-api.org

User Interface

13-10-2012 keeps the clouds up ;) 5

Source: http://heat-api.org

Heat Engine

13-10-2012 keeps the clouds up ;) 6

Source: http://heat-api.org

Bootstrap Methods

• Golden Image – everything some scratch

• CloudFormation + cloud-init as startup script

• CloudFormation metadata + helper scripts

• Use Chef or Puppet

13-10-2012 keeps the clouds up ;) 7

Heat JEOS

• Build Just Enough Operating System images

• Will be setup with cloud-init and cfn-tools

• Optionally, register with glance

13-10-2012 keeps the clouds up ;) 8

Oz… (The wizard!)

13-10-2012 keeps the clouds up ;) 9

• Automated installation of guest OS

• Create TDL files to feed as input into the building process

SAMPLE TDL file: <template> <name>NAME</name> <os> <name>DISTRO</name> <version>VERSION</version> <arch>ARCH</arch> <install type='iso'> <iso>PATH TO ISO</iso> </install> </os> <description>DESCRIPTION</description> </template>

CloudFormation helper scripts

• cfn-init - Reads instance resource, installs packages, and starts services

• cfn-signal - Waits for an application to be ready before continuing with stack creation

• cfn-hup - Handle updates to metadata and execute custom hooks

• cfn-get-metadata - Retrieve all metadata defined for a resource or a specific key or subtree of the resource's metadata

• cfn-update-stack - Updates metadata content • Stack synchronization and rollback through

WaitCondition

13-10-2012 keeps the clouds up ;) 10

Template Dissection

• Templates - JSON files which define your stack • Stacks - Collection of resources to manage together • Parameters - Values defined in the template • Mappings - Conditional parameter values • Pseudo Parameters – Pre declared values • Resources – Features which declare a stack • Resource Properties – Values for resources • References – Any named item • Intrinsic Functions – Accomplish complex operations • Outputs – Return values back to the template user

13-10-2012 keeps the clouds up ;) 11

Source: AWS CloudFormation Documentation

Advanced Services

• Not just a resource brokering service

• Autoscaling

• CloudWatch

13-10-2012 keeps the clouds up ;) 12

Current Status

• Integration with Common, Glance, Keystone, Swift, and Nova

• Implementation of the AWS CloudFormation API

• Usable implementation of AWS CloudWatch API

• Complete implementation for all non-VPC related resource types in CloudFormation

• Instance and application high availability

• Autoscaling

• Nested Stacks

13-10-2012 keeps the clouds up ;) 13

13-10-2012 keeps the clouds up ;) 14

Roadmap

G Release F Release

13-10-2012 keeps the clouds up ;) 15

• Hardening of source tree • Improving source tree to

meet OpenStack design principles

• Promotion to OpenStack core

• Project Incubation • Optimizing project governance to match

OpenStack standards • Complete implementation of AWS • CloudWatch API, contributing

appropriate technology into Ceilometer • Complete integration with Quantum,

providing complete VPC feature coverage

TOSCA - Topology and Orchestration Specification for Cloud Applications

Where to go

• http://wiki.openstack.org/Heat • http://heat-api.org • https://github.com/heat-api/heat

– Code, Wiki, Tracker

• References – http://docs.amazonwebservices.com/AWSCloudFormation/lates

t/APIReference/API_CreateStack.html – http://docs.amazonwebservices.com/AWSCloudFormation/lates

t/UserGuide/create-stack.html – http://docs.amazonwebservices.com/AWSCloudFormation/lates

t/UserGuide/aws-template-resource-type-ref.html – http://www.oasis-

open.org/committees/tc_home.php?wg_abbrev=tosca

13-10-2012 keeps the clouds up ;) 16

Related Projects

• http://wiki.openstack.org/Donabe

– multi-tier Application Container Service

• http://wiki.openstack.org/DatabaseAsAService

– could be used to provide AWS::RDS::DBInstance

• http://wiki.openstack.org/QueueService

– could be used to provide AWS::SQS::Queue

13-10-2012 keeps the clouds up ;) 17

OpenStack Summit 2012

• October 15th – 18th in San Diego

• http://www.openstack.org/summit/san-diego-2012/openstack-summit-sessions/

• https://www.openstack.org/blog/2012/10/participating-remotely-to-openstack-summit-2012/

13-10-2012 keeps the clouds up ;) 18

Thank You

@kiranmurari

linkedin.com/in/kiranmurari

slideshare.net/kiranmurari

13-10-2012 keeps the clouds up ;) 19