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os-refresh-config
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Restart services and coordinate data migration on Heat config changes.
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Andreas Jaeger e6f3b30ed5 Remove -U from pip install 
'pip install -U' ugrades specified packages, this is not necessary
since we use constraints, remove the parameter '-U' from the line.

With tools/tox_install.sh - which a previous change of mine removed -
the -U was not harmful, but with the current set up, it might cause
upgrades, so remove it.

Change-Id: Ia27e31299490771dcf3460bf5581ef50dfea7b34
 		2017-12-02 19:20:06 +01:00
os_refresh_config Adjust test suite for new psutil versions 2017-01-18 20:19:36 +01:00
tests Initial commit 2013-02-06 16:59:40 -08:00
zuul.d Migrate os-refresh-config to zuul v3 jobs 2017-11-17 20:11:19 +00:00
.coveragerc Change ignore-errors to ignore_errors 2015-09-21 14:41:56 +00:00
.gitignore Coverage report was't created 2014-09-26 16:09:51 +09:00
.gitreview Update stackforge references to openstack 2013-08-17 23:00:11 -04:00
.testr.conf Coverage report was't created 2014-09-26 16:09:51 +09:00
LICENSE Adding setup.py to make for an easier installation 2013-02-12 07:04:28 -08:00
README.rst Show team and repo badges on README 2016-11-25 14:21:32 +01:00
requirements.txt Updated from global requirements 2017-09-27 17:18:26 +00:00
setup.cfg Support building wheels (PEP-427) 2013-11-19 10:33:09 +01:00
setup.py Updated from global requirements 2017-03-06 01:16:55 +00:00
test-requirements.txt Updated from global requirements 2017-11-16 11:20:09 +00:00
tox.ini Remove -U from pip install 2017-12-02 19:20:06 +01:00

README.rst

Team and repository tags

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os-refresh-config

os-refresh-config uses dib-run-parts to run scripts in a pre-defined set of directories:

/opt/stack/os-config-refresh/pre-configure.d
/opt/stack/os-config-refresh/configure.d
/opt/stack/os-config-refresh/post-configure.d
/opt/stack/os-config-refresh/migration.d
/opt/stack/os-config-refresh/error.d

/opt/stack/os-config-refresh is the default base directory. You can set OS_REFRESH_CONFIG_BASE_DIR environment variable to override the default one.

Its intended purpose is to separate scripts execution into 4 phases:

  1. Quiesce(pre-configure.d),
  2. Configure(configure.d),
  3. Activate(post-configure.d).
  4. Migrate(migration.d),

It runs through all the phases above to ensure configuration is applied and enabled on a machine. It will run the scripts in error.d and then exit with a non-zero exit status if any phase has a problem. The scripts in each phase should not depend on each other having worked properly.

Note: Earlier versions of os-refresh-config ran migration before post-configure. This was an oversight in the initial design, as migrations are intended to be online migrations after the host is fully configured.

For things which must happen while the service is quiesced, that should be done in the post-configure scripts which control the service state.