fix(maas): clean up node state before removal - #902
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Preserve the FQDN returned by MAAS so downstream removal steps can distinguish it from the short cluster node name. Partial-Bug: LP: #2163212 Signed-off-by: Seyeong Kim <seyeong.kim@canonical.com>
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Remove Nova services and Neutron agents by the MAAS FQDN after the target MicroOVN unit is gone. Verify that the control-plane records no longer exist so retrying node removal cannot silently leave stale state. Partial-Bug: LP: #2163212 Signed-off-by: Seyeong Kim <seyeong.kim@canonical.com>
Disable matching cinder-volume services before removing the Juju unit. Use a healthy Cinder control-plane unit to remove the records afterward and require an empty exact-host postcondition. Partial-Bug: LP: #2163212 Signed-off-by: Seyeong Kim <seyeong.kim@canonical.com>
Remove DB-backed MicroCeph OSDs before deleting their Juju unit. Stop removal when MicroCeph and CRUSH state disagree so unsupported orphan recovery remains visible. Closes-Bug: LP: #2163212 Signed-off-by: Seyeong Kim <seyeong.kim@canonical.com>
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MAAS node removal used the short hostname to clean up services that may be registered with the machine FQDN.
It could also remove Juju units without cleaning up their Cinder service records or MicroCeph OSDs.
This left stale state after the node was removed.
Preserve the FQDN returned by MAAS and use it to remove Nova services and Neutron agents after the target MicroOVN unit has stopped. Verify that no exact-host records remain.
Disable matching Cinder volume services before removing the
cinder-volumeunit. Remove their service records through a healthy Cinder control-plane unit afterward, matching both the short hostname and FQDN.Remove DB-backed MicroCeph OSDs before removing the MicroCeph unit.
Compare the MicroCeph database with the CRUSH tree before making changes and stop removal when the two sources disagree.
Force removal passes the supported MicroCeph safety flags without hiding cleanup failures.
Closes-Bug: LP: #2163212