- When upgrading HA-clustered deployments with pause/resume,
hacluster units need to be paused first so VIP are migrated and
the unit being upgraded does not receive API requests.
- Currently nova-related charms do not support RPC version
pinning or auto-negotiation, so it is not recommended that
nova-compute is upgraded separately than nova-cloud-controller
(should be upgraded immediately after), as RPC version mismatch
will cause internal errors and API unavailability.
Enabling RBD mirroring makes use of the journal feature of RBD's.
This has some significant overheads for write performance so
make sure this is apparent in the documentation for this feature.
Update metadata.yaml snippet for neutron-gateway.
Add 'NICs' column to a table on the install-maas page.
Clarify what 'data-port' is and how to configure all MAAS nodes so that
an unused network interface is left in the 'Unconfigured' state.
It is odd to have the user do this but the alternative was to be invasive in
terms of changes, which would result in a high risk of breakage later on. This
entire guide will be revisited and reviewed at a later date.
There's no .md file in here, so change links. Looking at the used links,
these are all external links and thus sphinx cannot test whether they
work. Use internal links so that all links work - and work even after
This shows up as e.g.:
WARNING: unknown document: install-maas.html
Update tox.ini so that these are hard errors.
Remove dead requirement oslosphinx, it's not needed anymore here since
openstackdocstheme is used.
Ensure its clear that the authorize-charm action should be run
on the lead vault unit in a HA deployment by using the /leader
syntax to auto-identify the lead unit.
Add '--wait' parameter to example to ensure users see any action
Add pre-upgrade step to discover and purge and old compute service
entries; in later openstack releases, the DB model will throw
exceptions for service entries with versions less than the minimum
requirement, causing API requests to error post upgrade.
This change adds a new section to the upgrade appendix to list known
issues at the time that might not be resolvable via charm changes; i.e.
that need operator manual intervention.