RDS:

db:
  fields:
    - db_instance_identifier
    - engine
    - allocated_storage
    - db_instance_status

ElastiCache:

cache:
  fields:
    - cache_cluster_id
    - engine
    - cache_node_type
maxmemory:
  cache.t1.micro:       142606336
  cache.t2.micro:       581959680
  cache.t2.small:      1665138688
  cache.t2.medium:     3461349376
  cache.m1.small:       943718400
  cache.m1.medium:     3093299200
  cache.m1.large:      7025459200
  cache.m1.xlarge:    14889779200
  cache.m2.xlarge:    17091788800
  cache.m2.2xlarge:   35022438400
  cache.m2.4xlarge:   70883737600
  cache.m3.medium:     2988441600
  cache.m3.large:      6501171200
  cache.m3.xlarge:    14260633600
  cache.m3.2xlarge:   29989273600
  cache.m4.large:      6892593152
  cache.m4.xlarge:    15328501760
  cache.m4.2xlarge:   31889126359
  cache.m4.4xlarge:   65257290629
  cache.m4.10xlarge: 166047614239
  cache.c1.xlarge:     6501171200
  cache.r3.large:     14470348800
  cache.r3.xlarge:    30513561600
  cache.r3.2xlarge:   62495129600
  cache.r3.4xlarge:  126458265600
  cache.r3.8xlarge:  254384537600
  cache.r4.large:     13201781556
  cache.r4.xlarge:    26898228839
  cache.r4.2xlarge:   54197537997
  cache.r4.4xlarge:  108858546586
  cache.r4.8xlarge:  218255432090
  cache.r4.16xlarge: 437021573120

ElasticsearchService:

domain_status:
  fields:
    - domain_id
    - domain_name