title: CloudFormation placement group partition count
body: <p>I am trying to create and specify partitions for placement groups in a CloudFormation template. I tried creating resources like:</p>
  
  <pre><code>"PlacementGroup" : {
    "Type" : "AWS::EC2::PlacementGroup",
    "Properties" : {
    "Strategy" : "partition",
    "PartitionCount": 3
    }
  }
  </code></pre>
  
  <p>But partition count, only seems to be available in the CLI and AWS Console. The same applies for EC2 CF properties; PartitionNumber does not seem to be available in CF, only in the CLI and AWS Console.</p>
  
  <p>Has anyone else run across this?</p>