Parse the get-state output into a hierarchical dictionary and then process

[shtripat]

Currently the output of gluster get-state command is read from a file. This file is in ini format and we just read that into json. Each section in the file becomes one dictionary with entries as keys in dictionary. It would be better parseable/processable if we create a proper hierarchical dictionary as below out of this data and then update the detail into central store

{
  'Global': {
    'MYUUID': '3780fd01-8047-402c-81df-e361a1935bb8',
    'op-version': '30900'
  },
  'Peers': [
   .....
  ],
  'Volumes': [
    {
      'name': 'vol1',
      'id': 'ff0bceae-9901-46b0-9464-7fa4836d2535',
      ............
      'Bricks': [
        'Brick1': {
          'hostname': '<FQDN>',
          'path': '<FQDN>:<mounth path>',
          ..........
        },
        ..........
      ],
      'Options': {
        'option1': 'val1',
        'option2': 'val2',
        .........
      },
      ...............
    },
    ........
  ],  
  'Services': [
    {
      'name': 'glustershd',
      'online_status': "Offline",
    },
    ...............
  ],
  'Misc': {
    'Base Port': 49152,
    'Last allocated port': 49153
  }
]
}

This would make looping through the details and updation in central store more predictable and errors can be handled more effectively (as in case a KeyError for one volume doesnt cause other volume details updation failures and the error could be logged for that specific volume only)