[InstanceHA] Error:Unable to read /etc/corosync/corosync.conf: Is a directory

[Jose Luis Franco]

Bug based on https://bugzilla.redhat.com/show_bug.cgi?id=1899935

When upgrading from queens to train an InstanceHA compute node, any pcs command executed on the already upgraded environment fails with:

Error:Unable to read /etc/corosync/corosync.conf: Is a directory

When the /etc/corosync directory was checked we could see that /etc/corosync/corosync.conf was really a directory.

This directory was present also on all the other computes which were not upgraded yet, however in queens it seems this wasn't a problem for pacemaker.

Therefore, we need to add an upgrade task that checks if the directory exists and remove it if it's empty or back it up if it isn't.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/train
Review: https://review.opendev.org/763556

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-heat-templates 11.4.0 release.

[Marios Andreou (marios-b)]

Bug status has been set to 'Fix-Released' based on the discussion and/or patches above. If you disagree please re-set 'Triaged' and reach out to us on freenode #tripleo thank you!