使用云表单为ec2实例添加弹性IP

Question

我在哪里可以从我的cloudformation模板附加弹性ip？

{
"Description" : "Staging single instance",
"Outputs": {
    "InstanceID": {
        "Description": "The WWW instance id",
        "Value": { "Ref": "StageInstance" }
    }
},
"Parameters": {
    "AMI": {
        "Description": "The Amazon Ubuntu AMI",
        "Type": "String",
        "Default": "ami-009110a2bf8d7dd0a"
    },
    "EBSVolumeSize": {
        "Description": "The size of the EBS volume for the transcoder",
        "Type": "String",
        "Default": "20"
    },
    "InstanceType": {
        "AllowedValues": [
            "t2.micro",
            "t2.small",
            "t2.medium",
            "t2.large",
            "c4.large",
            "c4.xlarge",
            "c4.2xlarge",
            "c4.4xlarge",
            "c4.8xlarge",
            "t3.medium"
        ],
        "ConstraintDescription": "must be a valid EC2 instance type",
        "Default": "t2.micro",
        "Description": "EC2 instance type",
        "Type": "String"
    },
    "KeyName": {
        "Description" : "Name of an existing EC2 KeyPair to enable SSH access to NAT instances.",
                    "Type": "AWS::EC2::KeyPair::KeyName",
                    "ConstraintDescription" : "Must be the name of an existing EC2 KeyPair."        }

},
"Resources": {
     "InstanceProfile" : {
         "Type" : "AWS::IAM::InstanceProfile",
                "Properties" : {
                        "Path" : "/",
                                "Roles" : ["Ec2CloudDeploy"]
                                        }
                                            },
    "StageSecurityGroup": {
        "Type": "AWS::EC2::SecurityGroup",
        "Properties": {
            "GroupDescription": "Allow SSH, HTTP, and HTTPS access",
            "SecurityGroupIngress": [
                {
                    "IpProtocol": "tcp",
                    "FromPort": "22",
                    "ToPort": "22",
                    "CidrIp": "0.0.0.0/0"
                },
                {
                    "IpProtocol": "tcp",
                    "FromPort": "80",
                    "ToPort": "80",
                    "CidrIp": "0.0.0.0/0"
                },
                {
                    "IpProtocol": "tcp",
                    "FromPort": "443",
                    "ToPort": "443",
                    "CidrIp": "0.0.0.0/0"
                }
            ]
        }
    },
 "StageInstance": {
        "Type" : "AWS::EC2::Instance",

        "Properties": {
            "SecurityGroupIds": [{"Ref": "StageSecurityGroup"}],
            "KeyName": {"Ref": "KeyName" },
            "ImageId": {"Ref": "AMI"},
            "InstanceType": {"Ref": "InstanceType"},
            "IamInstanceProfile" : {"Ref" : "InstanceProfile"},
            "Tags": [
                {"Key" : "Staging", "Value" : "Staging"}
            ]

 }
  }
 }
}

有没有什么配置可以给这个实例启动的实例附加弹性ip，我知道可以通过cli命令buT来附加，我想通过我的cloudformation模板来添加。

Answer 1

您将使用AWS::EC2::EIPAssociation

{
  "Type" : "AWS::EC2::EIPAssociation",
  "Properties" : {
      "AllocationId" : String,
      "EIP" : String,
      "InstanceId" : String,
      "NetworkInterfaceId" : String,
      "PrivateIpAddress" : String
    }
}

Answer 2

好的。如AWS::EC2::EIP中所述：

亚马逊指定弹性IP (

)地址，并可以选择将其与亚马逊EC2实例相关联。

通过设置InstanceId，您可以将弹性公网EIP关联到CloudFormation的EC2实例。

对于您的情况，下面的代码片段应该可以解决这个问题：

"Resources": {
    ...,
    "ElasticIP": {
        "Type": "AWS::EC2::EIP",
        "Properties": {
            "InstanceId": {"Ref" : "StageInstance"}
        }
    }
}