Why I did it
Platform interface doesn't provide all sensors and using it isn't effective
How I did it
Request sensors via http from BMC server and parse the result
How to verify it
Related daemon in pmon populates redis db, run this command to view the contents
Why I did it
SIGTERM takes more than 10 seconds to be processed, so psud is stopped by SIGKILL, this causes unexpected behavior since data base is not cleared
How I did it
Decorate get_presence api to cancel it on SIGTERM signal in order to avoid long processing.
How to verify it
test_pmon_psud_stop_and_start_status
test_pmon_psud_term_and_start_status
#### Why I did it
On our platforms syncd must be up while using the sonic_platform.
The issue is warm-reboot script first disables syncd then instantiate Chassis, which tries to connect syncd in __init__.
#### How I did it
Refactor Chassis to lazy initialize components.
Signed-off-by: Volodymyr Boyko <volodymyrx.boiko@intel.com>
#### Why I did it
To fix the following:
```
# psuutil status
Traceback (most recent call last):
File "/usr/local/bin/psuutil", line 8, in <module>
sys.exit(cli())
File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 764, in __call__
return self.main(*args, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 717, in main
rv = self.invoke(ctx)
File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/psuutil/main.py", line 93, in status
psu_name = psu.get_name()
File "/usr/local/lib/python3.7/dist-packages/sonic_platform_base/device_base.py", line 28, in get_name
raise NotImplementedError
NotImplementedError
```
#### How I did it
Implemented get_name
Signed-off-by: Volodymyr Boyko <volodymyrx.boiko@intel.com>
