2d1397b468
/opt/stack as the default base directory is not very friendly to non-OpenStack users, so this changes the default base directory to reside in /usr/libexec. The /opt/stack path will continue to work for now so any existing users will not be broken by the change. Also changes the directory name from os-config-refresh to os-refresh-config to better align with the os-apply-config naming. Change-Id: I98e93d91685ae25ae74a5470483a1cc8b97da4e5
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 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:
- Quiesce(pre-configure.d),
- Configure(configure.d),
- Activate(post-configure.d).
- Migrate(migration.d),
It runs through all the phases above to ensure configuration is applied and enabled on a machine. It will exit with an error 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.