SDSTOR-12187 : PartitionUtilization Endpoint (multi volume version)

[shosseinimotlagh]

Expose PartitionUtilization as volume used size divided by AM total size

Testing:

in one terminal, run
bin/test_volume --gtest_filter=VolTest.init_io_test --remove_file_on_shutdown=1 --delete_volume=1 --run_time=10000 --http_port=5000 --max_volume=1 --p_volume_size=100 --max_disk_capacity=1

in another terminal, run the below command to get the volume uuid:
nublox-tools/AM/hs_http_cli_tool.py get_object --name test_files/vol0

run the below API command:
curl http://localhost:5000/api/v1/utilization/[volumeUUID]
curl http://localhost:5000/api/v1/utilization

example output:

curl http://localhost:5000/api/v1/utilization | jq .

{
"14db582f-fd5d-4f0c-996c-3e12d9978867": "0.000000",
"2b4d26f0-e6a6-49c7-8cb5-55d2048c34f7": "0.000000",
"3b229301-7c6f-4ef0-bd9b-9439c76b20af": "0.000001",
"7780c654-5633-4dcd-ad68-4afd1accb15e": "0.000037"
}

curl http://localhost:5000/api/v1/utilization/7780c654-5633-4dcd-ad68-4afd1accb15e | jq .

{
"7780c654-5633-4dcd-ad68-4afd1accb15e": "0.000037"
}

[codecov-commenter]

Codecov Report

Attention: 23 lines in your changes are missing coverage. Please review.

Comparison is base (e0712d5) 45.35% compared to head (5aeb262) 45.33%.

Files	Patch %	Lines
src/homeblks/homeblks_http_server.cpp	14.28%	12 Missing ⚠️
src/homeblks/home_blks.cpp	0.00%	11 Missing ⚠️

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Additional details and impacted files

@@               Coverage Diff               @@
##           stable/v3.x     #277      +/-   ##
===============================================
- Coverage        45.35%   45.33%   -0.03%     
===============================================
  Files              126      126              
  Lines            16374    16385      +11     
  Branches          1943     1945       +2     
===============================================
+ Hits              7427     7428       +1     
- Misses            8244     8256      +12     
+ Partials           703      701       -2     

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[raakella1]

LG!