Spot Fleet Instance

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AWS

目录：

1. 申请Spot Fleet Instance

通过AWS Client申请。

$ aws ec2 request-spot-fleet --spot-fleet-request-config file://test.json --region us-west-2
返回
{
    "SpotFleetRequestId": "sfr-6f5f82e5-3d2c-4422-81c7-xxxxx"
}

其中，test.json是关于Fleet Request的配置文件，一个样例为：

{
  "IamFleetRole": "arn:aws:iam::xxxxx:role/aws-ec2-spot-fleet-tagging-role",
  "AllocationStrategy": "lowestPrice",
  "TargetCapacity": 2,
  "SpotPrice": "0.1225",
  "ValidFrom": "2017-09-11T09:50:00Z",
  "ValidUntil": "2018-09-11T09:50:00Z",
  "TerminateInstancesWithExpiration": true,
  "Type": "maintain",
  "LaunchSpecifications": [
    {
      "ImageId": "ami-xxxxxx",
      "InstanceType": "m1.xlarge",
      "SubnetId": "subnet-xxxxx",
      "KeyName": "akka_oregon",
      "WeightedCapacity": 4,
      "SpotPrice": "0.0875",
      "IamInstanceProfile": {
        "Arn": "arn:aws:iam::xxxxxxxxx:instance-profile/akka-web"
      },
      "SecurityGroups": [
        {
          "GroupId": "sg-xxxxx"
        }
      ],
      "UserData": "bWtkaXIgdGFv",
      "TagSpecifications": [
        {
          "ResourceType": "instance",
          "Tags": [
            {
              "Key": "Name",
              "Value": "XiaoTao"
            }
          ]
        }
      ]
    },
    {
      "ImageId": "ami-yyyyy",
      "InstanceType": "m2.4xlarge",
      "SubnetId": "subnet-yyyyy",
      "KeyName": "akka_oregon",
      "WeightedCapacity": 8,
      "SpotPrice": "0.1225",
      "IamInstanceProfile": {
        "Arn": "arn:aws:iam::yyyyyyyy:instance-profile/akka-web"
      },
      "SecurityGroups": [
        {
          "GroupId": "sg-yyyyyy"
        }
      ],
      "UserData": "bWtkaXIgdGFv",
      "TagSpecifications": [
        {
          "ResourceType": "instance",
          "Tags": [
            {
              "Key": "Name",
              "Value": "XiaoTao"
            }
          ]
        }
      ]
    }
  ]
}

2. 描述一个Fleet Request

$ aws ec2 describe-spot-fleet-instances --spot-fleet-request-id sfr-6f5f82e5-3d2c-4422-xxxxx --region us-west-2
返回
{
    "ActiveInstances": [
        {
            "InstanceId": "i-xxxxx",
            "InstanceType": "m1.small", 
            "SpotInstanceRequestId": "sir-xxxx"
        }, 
        {
            "InstanceId": "i-yyyyy", 
            "InstanceType": "m1.small", 
            "SpotInstanceRequestId": "sir-yyyyy"
        }
    ], 
    "SpotFleetRequestId": "sfr-6f5f82e5-3d2c-4422-xxxxx"
}

3. 终止Spot Fleet Request/Instance

$ aws ec2 cancel-spot-fleet-requests --spot-fleet-request-ids sfr-6f5f82e5-3d2c-4422-81c7-xxxx --terminate-instances --region us-west-2
返回
{
    "SuccessfulFleetRequests": [
        {
            "PreviousSpotFleetRequestState": "active", 
            "CurrentSpotFleetRequestState": "cancelled_terminating", 
            "SpotFleetRequestId": "sfr-6f5f82e5-3d2c-4422-81c7-xxxx"
        }
    ], 
    "UnsuccessfulFleetRequests": []
}

注意，必须加上--terminate-instances，否则只是cancel spot fleet request, 正在运行的spot fleet instances不会被terminate。