99b055b423
It is found that the inter-leaving of lock when a update-replace of a resource is needed is the reason for new traversal not being triggered. Consider the order of events below: 1. A server is being updated. The worker locks the server resource. 2. A rollback is triggered because some one cancelled the stack. 3. As part of rollback, new update using old template is started. 4. The new update tries to take the lock but it has been already acquired in (1). The new update now expects that the when the old resource is done, it will re-trigger the new traversal. 5. The old update decides to create a new resource for replacement. The replacement resource is initiated for creation, a check_resource RPC call is made for new resource. 6. A worker, possibly in another engine, receives the call and then it bails out when it finds that there is a new traversal initiated (from 2). Now, there is no progress from here because it is expected (from 4) that there will be a re-trigger when the old resource is done. This change takes care of re-triggering the new traversal from worker when it finds that there is a new traversal and an update-replace. Note that this issue will not be seen when there is no update-replace because the old resource will finish (either fail or complete) and in the same thread it will find the new traversal and trigger it. Closes-Bug: #1625073 Change-Id: Icea5ba498ef8ca45cd85a9721937da2f4ac304e0 |
||
|---|---|---|
| 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 | ||
| openstack-common.conf | ||
| pylintrc | ||
| requirements.txt | ||
| setup.cfg | ||
| setup.py | ||
| test-requirements.txt | ||
| tox.ini | ||
| uninstall.sh | ||
README.rst
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
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)