AWS-将云信息堆栈与VPC合并

Question

I am trying to create a stack in AWS CloudFormation, My template basically consists of Ec2 instance, RDS instance for DB (MySQL engine) and a S3 bucket. but, its throwing error stating (db.t2.micro) this DB instance class cannot be created without a VPC, then I changed the DB instance class to (db.m1.small) again am getting same error. I even created a VPC too, but not sure how do I create my stack within the VPC which I created. I work in my company's AWS account. where already few other VPCs are available.

Thanks in advance :)

Modified the JSON script after getting answers. This script is in working condition and could create stack. TESTED!

Updated Code

    {  
    "AWSTemplateFormatVersion": "2010-09-09",   
    "Resources": {  
        "DBSubnetGroup": {  
            "Type": "AWS::RDS::DBSubnetGroup",   
            "Properties": {  
                "DBSubnetGroupDescription": "This subnet belongs to Abdul's VPC",   
                "DBSubnetGroupName": "somename",   
                "SubnetIds": [  
                    "subnet-f6b15491",   
                    "subnet-b154569e"  
                ]  
            }  
        },   
        "DB": {  
            "Type": "AWS::RDS::DBInstance",   
            "Properties": {  
                "AllocatedStorage": "5",   
                "StorageType": "gp2",   
                "DBInstanceClass": "db.m1.small",   
                "DBName": "wordpress",   
                "Engine": "MySQL",   
                "MasterUsername": "wordpress",   
                "MasterUserPassword": "Word12345",   
                "DBSubnetGroupName": {  
                    "Ref": "DBSubnetGroup"  
                }  
            }  
        },   
        "EC2": {  
            "Type": "AWS::EC2::Instance",   
            "Properties": {  
                "ImageId": "ami-c481fad3",     
                "InstanceType": "t2.micro",
                "SubnetId": "subnet-b154569e"               
            }  
        },   
        "S3": {  
            "Type": "AWS::S3::Bucket",   
            "Properties": {  
                "BucketName": "wp-abdultestbuck"  
            }  
        }  
    }  
}

Answer 1

You need to create an AWS::RDS::DBSubnetGroup and then reference in the AWS::RDS::DBInstance

  {
    "Resources": { 
        "DBSubnetGroup": {
            "Type": "AWS::RDS::DBSubnetGroup",
            "Properties": {
            "DBSubnetGroupDescription": "",
            "SubnetIds": [ "<Subnet ID 1","<Subnet ID 2>" ],
            }
        },
        "DB": {
            "Type": "AWS::RDS::DBInstance",
            "Properties": {
                ....
                "DBSubnetGroupName": { "Ref": "DBSubnetGroup" }
            }
        },
        "EC2": {
            "Type": "AWS::EC2::Instance",
            "Properties": {
              "ImageId": "ami-c481fad3",
              "InstanceType": "t2.micro",
              "SubnetId": "<SubnetID>"
            }
          }
    }
}