{
  "Type": "AWS::ElastiCache::ReplicationGroup",
  "Properties": {
    "ReplicationGroupDescription" : "my description",
    "NumCacheClusters" : "2",
    "Engine" : "redis",
    "CacheNodeType" : "cache.m3.medium",
    "AutoMinorVersionUpgrade" : "true",
    "AutomaticFailoverEnabled" : "true",
    "CacheSubnetGroupName" : "subnetgroup",
    "EngineVersion" : "2.8.6",
    "PreferredMaintenanceWindow" : "wed:09:25-wed:22:30",
    "SnapshotRetentionLimit" : "4",
    "SnapshotWindow" : "03:30-05:30"
  }
}