Sample for using appliance Monitoring

[karaatanassov]

This sample shows how to use the appliance Monitoring interface.

The sample calls:

1. Monitoring.list() API to obtain list of counters.
2. Monitoring.query() API to obtain CPU and Memory statistics for the
   last 5 days

Sample output (table with formatted time series data):

vcenter server = sc2-rdops-vm06-dhcp-192-66.eng.vmware.com
vc username = [email protected]
Example: Query Monitoring for Timeseries Data:
-------------------

Metric                   2021-01-11              2021-01-12              2021-01-13              
cpu.totalfrequency       4788.91000000003        4788.910000000093       4788.910000000022       
cpu.systemload           0.6416814159292042      0.567210599721061       0.5591065830721007      
mem.util                 12477816.737463126      12260877.439330544      12179708.608150471      
mem.total                16413756.0              16413756.0              16413756.0              
mem.usage                76.02048390059609       74.69879191167777       74.20427480553785       
cpu.util                 13.568788627868807      12.823087055205912      11.284068845256204      
cpu.steal                0.0                     0.0                     0.0                     
swap.pageRate            1.3171504645318802e-05  1.1718624350229224e-05  1.166378552013087e-05 

[vmwclabot]

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[anusha94]

LGTM!