OpenStack Heat slides
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Transcript of OpenStack Heat slides
![Page 1: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/1.jpg)
orchestrating multiple cloud applications
![Page 2: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/2.jpg)
Agenda
• Standards used in Heat
• Heat Overview & Roadmap
• Heat basic architecture & CLI
• JeOS & Heat-jeos CLI
• Heat installation & running
• CloudFormation Template
![Page 3: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/3.jpg)
Standards used in Heat
• AWS CloudFormation
• TOSCA
Topology and Orchestration Specification for Cloud Applications
![Page 4: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/4.jpg)
Heat Overview
• Orchestrating (by stacks, updating running stacks)
• Resource management
• CloudFormation templates
• Integrates well with Puppet and Chef
• Very active community of 9 developers from Red Hat
![Page 5: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/5.jpg)
Heat Roadmap (Folsom)
• Complete integration with Common, Glance, Keystone, Swift, and Nova
• Complete implementation of the AWS CloudFormation and CloudWatch API
• Instance and application HA
• Autoscaling
• Nested Stacks
![Page 6: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/6.jpg)
Heat basic architecture
AMPQ
Heat API
Heat Metadata Heat Engine
DB
OpenStack
Stack
VM VM VM
RPC
![Page 7: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/7.jpg)
Heat basic architecture
AMPQ
Heat API
Heat Metadata Heat Engine
DB
OpenStack
Stack
VM VM VM
RPC
![Page 8: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/8.jpg)
Heat basic architecture
AMPQ
Heat API
Heat Metadata Heat Engine
DB
OpenStack
Stack
VM VM VM
RPC
![Page 9: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/9.jpg)
Heat basic architecture
AMPQ
Heat API
Heat Metadata Heat Engine
DB
OpenStack
Stack
VM VM VM
RPC
![Page 10: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/10.jpg)
Heat command line
heat <command> [options] [args]
• create
• delete
• describe
• update
• event-list
• list
• gettemplate
• estimate-template-cost
• validate
• resource
• resource-list
• resource-list-details
![Page 11: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/11.jpg)
JeOS
• Typically, a JeOS consist of the following: OS core OS Minimum maintenance tools Minimum user space tools Packages repository
Heat-jeos tool builds virtual machine images to use with Heat. git clone git://github.com/
heat-api/heat-jeos.git
cd heat-jeos
sudo python setup.py install.sh
![Page 12: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/12.jpg)
Heat-jeos command line
heat-jeos <command> [options] [args]
• create
• list
• tdl
• image
• register
![Page 13: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/13.jpg)
Heat installation on Ubuntu (DevStack)
• Configure DevStack to enable Heat (localrc) ENABLED_SERVICES+=,heat,h-api-cfn,\
h-api-cw,h-eng,\
h-meta
IMAGE_URLS+=",some_image“ (specific ones) https://github.com/heat-api/prebuilt-
jeos-images/downloads
./stack.sh
![Page 14: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/14.jpg)
Running Heat
source openrc heat service
heat list
<ListStacksResponse>
<ListStacksResult>
<StackSummaries/>
</ListStacksResult>
</ListStacksResponse>
![Page 15: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/15.jpg)
Preparing Nova for running stacks
nova keypair-add heat_key
Launching a stack
heat -d create teststack
--template-file=WordPress_SI.template
--parameters="InstanceType=m1.large;
DBUsername=wp;
DBPassword=password;
KeyName=heat_key;
LinuxDistribution=F16"
![Page 16: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/16.jpg)
If everything is nice
<CreateStackResponse>
<CreateStackResult>
<StackId>arn:openstack:heat:\
:service:stacks/teststack/1</StackId>
</CreateStackResult>
</CreateStackResponse>
----------------------------------------
heat describe teststack <a lot of info…>
![Page 17: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/17.jpg)
If something goes wrong
<StackStatusReason>
Resource Instance "WikiDatabase"
failed with:
nova reported unexpected
instance[WikiDatabase]
status[ERROR]
</StackStatusReason>
…
<StackStatus>
CREATE_FAILED
</StackStatus>
![Page 18: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/18.jpg)
Anatomy of a CloudFormation Template
• Description
• Parameters
• Mappings
• Resources
• Outputs
![Page 19: OpenStack Heat slides](https://reader035.fdocuments.net/reader035/viewer/2022081400/554c0c55b4c9053f078b57f8/html5/thumbnails/19.jpg)
Useful links
• http://heat-api.org/
• https://github.com/heat-api/heat/wiki
• https://github.com/heat-api/heat-jeos