[code sync] Merge code from sonic-net/sonic-platform-daemons:202605 to 202607 - #84
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Aug 31, 2026
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…Host --> BMC (#885) #### Why I did it Bmcctld improvements & thermalctld: push thermals from Switch-Host --> BMC ##### Work item tracking - Microsoft ADO **(number only)**: N/A #### How I did it **sonic-bmcctld/scripts/bmcctld** - Conditional SWITCH_HOST_POWER_ON_DELAY - applied only on REBOOT_CAUSE_POWER_LOSS; skipped on warm/fast/soft reboot. - GracefulShutdownHandler.execute() cleaned up - Event-log de-duplication across handler functions - Rack manager alert : skip when incoming alert matches to existing alert level, prevents unnecessary pub/sub events - chassis module admin_status : skip when admin_status don't change, prevents unnecessary pub/sub events - Uses self.chassis.is_liquid_cooled() platform API. - Update the init_host_state API to derive the device_power_state from get_oper_status platform API which will either ONLINE/OFFLINE. - Set the default graceful_shutdown_timeout = 0 till we support GNOI graceful shutdown **sonic-thermalctld/scripts/thermalctld** - EventLogger class added - stores critical events to syslog and /host/bmc/event.log. - Switch-Host ↔ BMC, thermals are pushed to BMC, via TEMPERATURE_INFO_STATE_DB table - critical temperature breaches logged into BMC event log. - LiquidCoolingUpdater improvements: - writes SYSTEM_LEAK_STATUS only on transitions - Per-sensor state updates also only on transitions - Added the Leak severity escalation logic (MINOR → CRITICAL after max_minor_duration_sec). - Critical leaks logged via event_logger. - Add logic to use self.chassis.is_liquid_cooled() also to identify liquid cooled platforms" #### How to verify it All Unit tests pass and sonic-mgmt tests for bmcctld and thermalctld pass #### Which release branch to backport (provide reason below if selected) - [ ] 201811 - [ ] 201911 - [ ] 202012 - [ ] 202106 - [ ] 202111 - [ ] 202205 - [ ] 202211 - [ ] 202305 - [ ] 202311 - [ ] 202405 - [ ] 202411 - [ ] 202505 - [ ] 202511 - [x] 202605 Signed-off-by: Sonic Build Admin <sonicbld@microsoft.com>
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