48fb66bdf3
The facade_resource intrinsic function needs to access the parent resource of a stack, which it does via the stack.parent_resource property. Accessing this for the first time loads the parent stack and all of its resources if they were not already. This made sense when all nested stacks in a tree were handled in-memory at the same time, but now that they are processed by separate engines it is inefficient. This change moves responsibility for lazy-loading the parent stack to a separate ParentResourceProxy class, and makes access more efficient again by avoiding the loading of resources if the stack was not already in memory. It also resolves a circular reference between nested stacks and their parent stacks. We now have a well-defined API behind which we can potentially make further efficiency improvements while giving third-party Function plugin developers confidence that we won't break them without notice. Change-Id: Ibfd80544889778f3499bcbe421b83f0a5aa6a7f7 Partially-Implements: blueprint stack-definition |
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| api-ref/source | ||
| bin | ||
| contrib | ||
| devstack | ||
| doc | ||
| etc/heat | ||
| heat | ||
| heat_integrationtests | ||
| heat_upgradetests | ||
| install-guide/source | ||
| rally-scenarios | ||
| releasenotes | ||
| tools | ||
| .coveragerc | ||
| .gitignore | ||
| .gitreview | ||
| .testr.conf | ||
| CONTRIBUTING.rst | ||
| HACKING.rst | ||
| LICENSE | ||
| README.rst | ||
| babel.cfg | ||
| bandit.yaml | ||
| config-generator.conf | ||
| install.sh | ||
| requirements.txt | ||
| setup.cfg | ||
| setup.py | ||
| test-requirements.txt | ||
| tox.ini | ||
| uninstall.sh | ||
README.rst
Team and repository tags
Heat
Heat is a service to orchestrate multiple composite cloud applications using templates, through both an OpenStack-native REST API and a CloudFormation-compatible Query API.
Why heat? It makes the clouds rise and keeps them there.
Getting Started
If you'd like to run from the master branch, you can clone the git repo:
git clone https://git.openstack.org/openstack/heat
- Wiki: http://wiki.openstack.org/Heat
- Developer docs: http://docs.openstack.org/developer/heat
- Template samples: https://git.openstack.org/cgit/openstack/heat-templates
- Agents: https://git.openstack.org/cgit/openstack/heat-agents
Python client
https://git.openstack.org/cgit/openstack/python-heatclient
References
- http://docs.amazonwebservices.com/AWSCloudFormation/latest/APIReference/API_CreateStack.html
- http://docs.amazonwebservices.com/AWSCloudFormation/latest/UserGuide/create-stack.html
- http://docs.amazonwebservices.com/AWSCloudFormation/latest/UserGuide/aws-template-resource-type-ref.html
- http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=tosca
We have integration with
- https://git.openstack.org/cgit/openstack/python-novaclient (instance)
- https://git.openstack.org/cgit/openstack/python-keystoneclient (auth)
- https://git.openstack.org/cgit/openstack/python-swiftclient (s3)
- https://git.openstack.org/cgit/openstack/python-neutronclient (networking)
- https://git.openstack.org/cgit/openstack/python-ceilometerclient (metering)
- https://git.openstack.org/cgit/openstack/python-aodhclient (alarming service)
- https://git.openstack.org/cgit/openstack/python-cinderclient (storage service)
- https://git.openstack.org/cgit/openstack/python-glanceclient (image service)
- https://git.openstack.org/cgit/openstack/python-troveclient (database as a Service)
- https://git.openstack.org/cgit/openstack/python-saharaclient (hadoop cluster)
- https://git.openstack.org/cgit/openstack/python-barbicanclient (key management service)
- https://git.openstack.org/cgit/openstack/python-designateclient (DNS service)
- https://git.openstack.org/cgit/openstack/python-magnumclient (container service)
- https://git.openstack.org/cgit/openstack/python-manilaclient (shared file system service)
- https://git.openstack.org/cgit/openstack/python-mistralclient (workflow service)
- https://git.openstack.org/cgit/openstack/python-zaqarclient (messaging service)
- https://git.openstack.org/cgit/openstack/python-monascaclient (monitoring service)
- https://git.openstack.org/cgit/openstack/python-senlinclient (clustering service)