cft_parameters.template

{
"Parameters": {
  "LatestAmiId": {
    "Type": "AWS::SSM::Parameter::Value<AWS::EC2::Image::Id>",     
    "Default": "/aws/service/ami-amazon-linux-latest/amzn2-ami-hvm-x86_64-ebs"
},
  "myKeyPair" : {
    "Description" : "Amazon EC2 Key Pair",
    "Type" : "AWS::EC2::KeyPair::KeyName"
  },
  "mySubnetIDs" : {
    "Description" : "Subnet IDs",
    "Type" : "List<AWS::EC2::Subnet::Id>"
  },
     "Oksoftaccess":{  
         "Type":"AWS::SSM::Parameter::Value<String>",
         "Default":"myEC2TypeDev"
      },
      "Oksoftsecret":{  
         "Type":"String",
         "Default":"mysecret1"
      }
},

   "Resources":{
      "MySpotFleet":{
         "Type":"AWS::EC2::SpotFleet",
         "Properties":{
            "SpotFleetRequestConfigData":{

  "IamFleetRole": "arn:aws:iam::513469704633:role/aws-ec2-spot-fleet-tagging-role",
  "AllocationStrategy": "lowestPrice",
  "TargetCapacity": 1,
  "SpotPrice": "1.105",
  "LaunchSpecifications": [
    {
      "ImageId": !Ref LatestAmiId,
      "InstanceType": "c3.large",
      "SpotPrice": "0.105",
      "SubnetId": !Join [ " , ",  !Ref mySubnetIDs ],
      "KeyName": !Ref myKeyPair,
      "BlockDeviceMappings": [
        {
          "DeviceName": "/dev/xvda",
          "Ebs": {
            "DeleteOnTermination": true,
            "VolumeType": "standard",
            "VolumeSize": 400
          }
        }
      ],

                   "UserData": {
 "Fn::Base64": {
 "Fn::Sub": 
          "#!/bin/bash -xe\n
           yum install -y docker mysql git python-pip\n  
           pip install aws-ec2-assign-elastic-ip\n 
           sudo amazon-linux-extras install -y docker\n
           service docker start\n
           docker run -d -p 8887:8888 -v /tmp:/tmp shantanuo/notebook\n
           /usr/local/bin/aws-ec2-assign-elastic-ip --access-key !Ref Oksoftaccess --secret-key !Ref Oksoftsecret --valid-ips 18.210.57.140\n"
                    }
 },
    }
  ],
  "Type": "request"
}
}}}}