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How to Create Template for CloudFormation

To use Cloud Formation stack , we have to create the Template which may be in JSON or YAMI format.

Task :

Create the JSON template for VPC.
Create the JSON template for Subnets
Create the JSON template for Internet gateway
Create the JSON template for NAT gateway

Steps:

Format for VPC:

{
"Type" : "AWS::EC2::VPC",
"Properties" : {
"CidrBlock" : String,
"EnableDnsSupport" : Boolean,
"EnableDnsHostnames" : Boolean,
"InstanceTenancy" : String,
"Tags" : [ Resource Tag, ... ]
}
}

Values to be supplied in VPC Template:

Example:

{
"AWSTemplateFormatVersion" : "2010-09-09",
"Resources" : {
"VPCTesting" : {
"Type" : "AWS::EC2::VPC",
"Properties" : {
"CidrBlock" : "10.1.0.0/16",
"EnableDnsSupport" : "false", "EnableDnsHostnames" : "false", "InstanceTenancy" : "dedicated",
"Tags" : [ {"Key" : "Name", "Value" : “VPC-Dev"} ]
}
}
}
}

Format for Subnet Creation:

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How to Create Template for CloudFormation