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It is possible to lock controller-0 on a DX system before controller-1 has been configured/enabled. Due to the following recent updates this can lead to SM disabling all controller services on that now locked controller-0 thereby preventing any subsequent controller-0 unlock attempts. https://review.opendev.org/c/starlingx/metal/+/907620 https://review.opendev.org/c/starlingx/ha/+/910227 This update modifies the mtce node locked flag file management so that the non-volatile node locked file (/etc/mtc/tmp/.node_locked) is only created on a locked host after controller-1 is installed, provisioned and configured. This prevents SM from shutting down if the administrator locks controller-0 before controller-1 is configured. Test Plan: PASS: Verify AIO DX Install. PASS: Verify Standard System Install. PASS: Verify Swact back and forth. PASS: Verify lock/unlock of controller-0 prior to controller-1 config PASS: Verify the non-volatile node locked flag file is not created while the /etc/platform/simplex file exists on the active controller. PASS: Verify lock and delete of controller-1 puts the system back into simplex mode where the non-volatile node locked flag file is once again not created if controller-0 is then unlocked. PASS: Verify an existing non-volatile node locked flag file is removed if present on a node that is locked without new persist option. PASS: Verify original reported issue is resolved for DX systems. Closes-Bug: 2051578 Change-Id: I40e9dd77aa3e5b0dc03dca3b1d3d73153d8816be Signed-off-by: Eric MacDonald <eric.macdonald@windriver.com>