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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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Doug Hellmann 33096222a6 fix tox python3 overrides 
We want to default to running all tox environments under python 3, so
set the basepython value in each environment.

We do not want to specify a minor version number, because we do not
want to have to update the file every time we upgrade python.

We do not want to set the override once in testenv, because that
breaks the more specific versions used in default environments like
py35 and py36.

Change-Id: I4e3c8a76cee08a327c1e648605e70f5e58eb9490
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
 		2018-09-26 19:04:00 -04:00
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 add python 3.6 unit test job 2018-08-24 05:01:13 +00:00
.coveragerc Change ignore-errors to ignore_errors 2015-09-21 14:41:56 +00:00
.gitignore Switch to stestr 2018-07-10 18:41:32 +07:00
.gitreview Update stackforge references to openstack 2013-08-17 23:00:11 -04:00
.stestr.conf Switch to stestr 2018-07-10 18:41:32 +07:00
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 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 Switch to stestr 2018-07-10 18:41:32 +07:00
tox.ini fix tox python3 overrides 2018-09-26 19:04:00 -04:00

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.