Additional justification for inclusion in 8.6.  We've discovered a few agents internally that had issues (and we are fixing), but this indicates to me that there may be many customer agents that have similar issues and will break when customers try to add them on 8.6.  I think it's best to just warn the user, but continuing functioning normally until 9.0 (where we currently require --force).

Upstream fix + tests: https://github.com/ClusterLabs/pcs/commit/50f4f1baaf221bfa63e7980792fdd7ef047e9653

For a reproducer, see comment 0

DevTestResults:

[root@r8-node-01 ~]# rpm -q pcs
pcs-0.10.12-6.el8.x86_64

[root@r8-node-01 ~]# cp /usr/lib/ocf/resource.d/pacemaker/Dummy{,.bak}
[root@r8-node-01 ~]# sed -i "s/<version>1.1<\/version>/<version>2022<\/version>/" /usr/lib/ocf/resource.d/pacemaker/Dummy
[root@r8-node-01 ~]# sed -n "/<version>.*<\/version>/p" /usr/lib/ocf/resource.d/pacemaker/Dummy
<version>2022</version>

[root@r8-node-01 ~]# pcs resource describe ocf:pacemaker:Dummy
Warning: Agent 'ocf:pacemaker:Dummy' implements unsupported OCF version '2022', supported versions are: '1.0', '1.1'; assumed version '1.0'
Warning: Agent 'ocf:pacemaker:Dummy' is not installed or does not provide valid metadata: Invalid attribute unique-group for element parameter, line 14
ocf:pacemaker:Dummy - Example stateless resource agent

This is a dummy OCF resource agent. It does absolutely nothing except keep track
of whether it is running or not, and can be configured so that actions fail or
take a long time. Its purpose is primarily for testing, and to serve as a
template for resource agent writers.

Resource options:
  state: Location to store the resource state in.
  passwd: Fake password field
  fake: Fake attribute that can be changed to cause an agent reload
  op_sleep: Number of seconds to sleep during operations. This can be used to test how the cluster reacts to operation timeouts.
  fail_start_on: Start, migrate_from, and reload-agent actions will return failure if running on the host specified here, but the resource will run successfully anyway (future monitor calls will find it running). This can be used to test
                 on-fail=ignore.
  envfile: If this is set, the environment will be dumped to this file for every call.

Default operations:
  start: interval=0s timeout=20s
  stop: interval=0s timeout=20s
  monitor: interval=10s timeout=20s
  reload: interval=0s timeout=20s
  reload-agent: interval=0s timeout=20s
  migrate_to: interval=0s timeout=20s
  migrate_from: interval=0s timeout=20s


[root@r8-node-01 ~]# pcs resource create dummy ocf:pacemaker:Dummy
Warning: Agent 'ocf:pacemaker:Dummy' implements unsupported OCF version '2022', supported versions are: '1.0', '1.1'; assumed version '1.0'
Warning: Agent 'ocf:pacemaker:Dummy' is not installed or does not provide valid metadata: Invalid attribute unique-group for element parameter, line 14

[root@r8-node-01 ~]# pcs resource update dummy passwd=pass
Warning: Agent 'ocf:pacemaker:Dummy' implements unsupported OCF version '2022', supported versions are: '1.0', '1.1'; assumed version '1.0'
Warning: Agent 'ocf:pacemaker:Dummy' is not installed or does not provide valid metadata: Invalid attribute unique-group for element parameter, line 14

BEFORE:
=======

[root@virt-485 ~]# rpm -q pcs
pcs-0.10.12-5.el8.x86_64


## Set version for dummy to not conform OCF schema

[root@virt-485 ~]# sed -i "s/<version>1.1<\/version>/<version>0.155.0<\/version>/" /usr/lib/ocf/resource.d/pacemaker/Dummy
[root@virt-485 ~]# cat /usr/lib/ocf/resource.d/pacemaker/Dummy | grep \<version\>
<version>0.155.0</version>


## Trying to create the changed dummy 

[root@virt-485 ~]# pcs resource create dummy ocf:pacemaker:Dummy
Error: Unable to process agent 'ocf:pacemaker:Dummy' as it implements unsupported OCF version '0.155.0', supported versions are: '1.0', '1.1', use --force to override
Error: Errors have occurred, therefore pcs is unable to continue
[root@virt-485 ~]# echo $?
1
[root@virt-485 ~]# pcs resource
NO resources configured

[root@virt-485 ~]# pcs resource describe ocf:pacemaker:Dummy
Error: Unable to process agent 'ocf:pacemaker:Dummy' as it implements unsupported OCF version '0.155.0', supported versions are: '1.0', '1.1'
Error: Errors have occurred, therefore pcs is unable to continue
[root@virt-485 ~]# echo $?
1


AFTER:
======

[root@virt-485 ~]# rpm -q pcs
pcs-0.10.12-6.el8.x86_64


## Set version for Dummy to not conform OCF schema

[root@virt-485 ~]# sed -i "s/<version>1.1<\/version>/<version>0.155.0<\/version>/" /usr/lib/ocf/resource.d/pacemaker/Dummy
[root@virt-485 ~]# cat /usr/lib/ocf/resource.d/pacemaker/Dummy | grep \<version\>
<version>0.155.0</version>


## Trying to create, describe and update the changed Dummy

[root@virt-485 ~]# pcs resource create dummy ocf:pacemaker:Dummy
Warning: Agent 'ocf:pacemaker:Dummy' implements unsupported OCF version '0.155.0', supported versions are: '1.0', '1.1'; assumed version '1.0'
Warning: Agent 'ocf:pacemaker:Dummy' is not installed or does not provide valid metadata: Invalid attribute unique-group for element parameter, line 14
[root@virt-485 ~]# echo $?
0
[root@virt-485 ~]# pcs resource
  * dummy	(ocf::pacemaker:Dummy):	 Started virt-485

> OK: The resource can be created, but the warning about the OCF version is still present


[root@virt-485 ~]# pcs resource describe ocf:pacemaker:Dummy
Warning: Agent 'ocf:pacemaker:Dummy' implements unsupported OCF version '0.155.0', supported versions are: '1.0', '1.1'; assumed version '1.0'
Warning: Agent 'ocf:pacemaker:Dummy' is not installed or does not provide valid metadata: Invalid attribute unique-group for element parameter, line 14
ocf:pacemaker:Dummy - Example stateless resource agent
{...}
[root@virt-485 ~]# echo $?
0

[root@virt-485 ~]# pcs resource update dummy passwd=1234
Warning: Agent 'ocf:pacemaker:Dummy' implements unsupported OCF version '0.155.0', supported versions are: '1.0', '1.1'; assumed version '1.0'
Warning: Agent 'ocf:pacemaker:Dummy' is not installed or does not provide valid metadata: Invalid attribute unique-group for element parameter, line 14
[root@virt-485 ~]# echo $?
0
[root@virt-485 ~]# pcs resource config
 Resource: dummy (class=ocf provider=pacemaker type=Dummy)
  Attributes: passwd=1234
  Operations: migrate_from interval=0s timeout=20s (dummy-migrate_from-interval-0s)
              migrate_to interval=0s timeout=20s (dummy-migrate_to-interval-0s)
              monitor interval=10s timeout=20s (dummy-monitor-interval-10s)
              reload interval=0s timeout=20s (dummy-reload-interval-0s)
              reload-agent interval=0s timeout=20s (dummy-reload-agent-interval-0s)
              start interval=0s timeout=20s (dummy-start-interval-0s)
              stop interval=0s timeout=20s (dummy-stop-interval-0s)

> OK


Marking as VERIFIED for pcs-0.10.12-6.el8

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (pcs bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2022:1978