openstack/heat
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OpenStack Orchestration (Heat)
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Zane Bitter 53137cb228 Avoid loading nested stacks in memory where possible 
Prior to changing StackResource to do stack operations over RPC, we made
liberal use of the StackResource.nested() method to access the nested stack
that was likely always loaded in memory. Now that that is no longer
required, it adds additional memory overhead that we need not have. We can
now obtain the stack identifier without loading the stack, and that is
sufficient for performing operations over RPC.

The exceptions are prepare_abandon(), which cannot be done over RPC at
present, and get_output(), which may be addressed in a separate patch. The
gratuitous loading of the nested stack in TemplateResource.get_attribute()
is eliminated, so although it still ends up loading the nested stack in
many cases, it will no longer do so once get_output() stops doing it.

Change-Id: I669d2a077381d7e4e913f6ad1a86fb3f094da6c5
Co-Authored-By: Thomas Herve <therve@redhat.com>
Related-Bug: #1626675
(cherry picked from commit df889488ed)
2016-10-14 09:50:30 +02:00
api-ref/source Merge "[api-ref] Remove temporary block in conf.py" 2016-09-13 13:41:37 +00:00
bin Fix heat-keystone-setup-domain 2016-05-16 07:38:46 +00:00
contrib Merge "Add version keyword argument to RAX glanceclient" 2016-08-15 23:55:50 +00:00
devstack Merge "Don't run neutron tests before upgrade" 2016-09-02 10:16:30 +00:00
doc Merge "Allows condition name using boolean or function" 2016-09-15 05:11:02 +00:00
etc/heat Add http_proxy_to_wsgi middleware to Heat CFN endpoint 2016-10-13 06:01:43 +00:00
heat Avoid loading nested stacks in memory where possible 2016-10-14 09:50:30 +02:00
heat_integrationtests Increase the timeout for the stop_stack message 2016-09-23 09:20:18 -04:00
heat_upgradetests In-tree grenade support for Heat 2015-07-02 17:23:22 +05:30
install-guide/source Install Guide: Set bug project 2016-06-24 15:34:11 +02:00
rally-scenarios Rally tests plugins for Heat 2016-03-02 12:20:37 -05:00
releasenotes Merge "Add releasenotes for OS::Cinder::QoSSpecs" 2016-09-15 03:53:46 +00:00
tools Don't raise error in custom guidelines on IOError 2016-08-24 09:36:02 +00:00
.coveragerc Change ignore-errors to ignore_errors 2015-09-21 14:26:58 +00:00
.gitignore Create integration tests requirements on the fly 2016-03-25 13:40:50 +00:00
.gitreview Update .gitreview for stable/newton 2016-09-15 10:27:12 -04:00
.testr.conf Add separate requirements.txt to integration tests 2015-04-01 09:02:13 +00:00
babel.cfg Add setup.py and friends 2012-03-14 09:25:54 +11:00
bandit.yaml tox environment for bandit 2015-07-08 09:13:35 -04:00
config-generator.conf Move heat_keystoneclient to clients package 2016-06-01 16:27:01 +05:30
CONTRIBUTING.rst Workflow documentation is now in infra-manual 2014-12-05 03:30:36 +00:00
HACKING.rst Restrict use of iteritems, iterkeys and itervalues 2016-03-23 10:05:54 +00:00
install.sh install.sh: stop using deprecated option group for rabbit 2015-09-01 19:01:34 +02:00
LICENSE Initial commit (basics copied from glance) 2012-03-13 21:48:07 +11:00
openstack-common.conf Switch to oslo.service 2015-06-23 08:30:39 +02:00
pylintrc Directives to not use variable names that conflict with pdb 2012-03-20 07:16:16 -04:00
README.rst Add aodh client plugin 2016-06-24 09:07:51 +00:00
requirements.txt Updated from global requirements 2016-09-20 13:11:06 +00:00
setup.cfg Add cinder qos specs constraint 2016-08-31 01:03:11 +08:00
setup.py Updated from global requirements 2015-09-22 10:40:48 +00:00
test-requirements.txt Updated from global requirements 2016-08-31 18:24:23 +00:00
tox.ini Update UPPER_CONSTRAINTS_FILE for stable/newton 2016-09-19 15:08:48 +00:00
uninstall.sh use stderr for error echo message 2016-01-17 05:20:40 +00:00

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

Python client

https://git.openstack.org/cgit/openstack/python-heatclient

References

We have integration with