spotfleet-good.template.json

{
    "AWSTemplateFormatVersion": "2010-09-09",
    "Description": "Builds an ECS Cluster",
    "Parameters": {},
    "Resources": {
        "SpotFleet": {
            "Type": "AWS::EC2::SpotFleet",
            "Properties": {
                "SpotFleetRequestConfigData": {
                    "AllocationStrategy": "diversified",
                    "ExcessCapacityTerminationPolicy": "default",
                    "IamFleetRole": {
                        "Fn::GetAtt": [
                            "IAMFleetRole",
                            "Arn"
                        ]
                    },
                    "SpotPrice": "2",
                    "TargetCapacity": "5",
                    "LaunchSpecifications": [
                        {
                            "InstanceType": "m3.xlarge",
                            "SecurityGroups": [],
                            "Monitoring": {
                                "Enabled": "true"
                            },
                            "ImageId": "ami-6bb2d67c",
                            "BlockDeviceMappings": [
                                {
                                    "VirtualName": "ephemeral0",
                                    "DeviceName": "/dev/xvdb"
                                },
                                {
                                    "VirtualName": "ephemeral1",
                                    "DeviceName": "/dev/xvdc"
                                }
                            ],
                            "UserData": {
                                "Fn::Base64": {
                                    "Fn::Join": [
                                        "\n",
                                        [
                                            "#!/bin/bash",
                                            "set -ex",
                                            "exec > >(tee /var/log/user-data.log | logger -t user-data -s 2> /dev/console) 2>&1"
                                        ]
                                    ]
                                }
                            }
                        }
                    ]
                }
            }
        },
        "IAMFleetRole": {
            "Type": "AWS::IAM::Role",
            "Properties": {
                "AssumeRolePolicyDocument": {
                    "Statement": [
                        {
                            "Effect": "Allow",
                            "Principal": {
                                "Service": [
                                    "spotfleet.amazonaws.com"
                                ]
                            },
                            "Action": [
                                "sts:AssumeRole"
                            ]
                        }
                    ]
                },
                "Policies": [
                    {
                        "PolicyName": "fleet",
                        "PolicyDocument": {
                            "Statement": [
                                {
                                    "Effect": "Allow",
                                    "Action": [
                                        "ec2:TerminateInstances",
                                        "ec2:RequestSpotInstances",
                                        "ec2:DescribeImages",
                                        "ec2:DescribeSubnets"
                                    ],
                                    "Resource": "*"
                                },
                                {
                                    "Effect": "Allow",
                                    "Action": "iam:PassRole",
                                    "Resource": "*"
                                }
                            ]
                        }
                    }
                ]
            }
        }
    }
}