openstack/os-refresh-config
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Restart services and coordinate data migration on Heat config changes.
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Takashi Kajinami d7b04cf441 Run pyupgrade to clean up Python 2 syntaxes 
Update all .py source files by
 $ pyupgrade --py3-only $(git ls-files | grep ".py$")
to modernize the code according to Python 3 syntaxes.

Change-Id: Ic6336f745f65161bb05defca797480bc03f7fea7
2024-10-19 23:34:41 +09:00
os_refresh_config Run pyupgrade to clean up Python 2 syntaxes 2024-10-19 23:34:41 +09:00
releasenotes/notes Stop testing python2.7 2020-03-13 14:47:47 -05:00
tests Initial commit 2013-02-06 16:59:40 -08:00
tools Vendor dib-run-parts 2024-02-29 17:49:13 +09:00
zuul.d Vendor dib-run-parts 2024-02-29 17:49:13 +09:00
.coveragerc Change ignore-errors to ignore_errors 2015-09-21 14:41:56 +00:00
.gitignore Ignore .eggs directory 2023-12-19 21:05:28 +09:00
.gitreview OpenDev Migration Patch 2019-04-19 19:36:18 +00:00
.stestr.conf Vendor dib-run-parts 2024-02-29 17:49:13 +09:00
LICENSE Adding setup.py to make for an easier installation 2013-02-12 07:04:28 -08:00
README.rst Update links in README 2018-03-02 18:05:11 +08:00
requirements.txt Vendor dib-run-parts 2024-02-29 17:49:13 +09:00
setup.cfg Declare Python 3.12 support 2024-10-09 22:52:02 +09:00
setup.py Cleanup py27 support 2020-04-05 10:16:09 +02:00
test-requirements.txt Bump hacking 2024-01-17 01:43:00 +09:00
tox.ini Fix outdated tox minversion 2024-10-13 21:38:18 +09:00

README.rst

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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.