cloudformation/newcloud.json at master · jayant-bhagat/cloudformation · GitHub

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{
    "AWSTemplateFormatVersion" : "2010-09-09",
    "Description" : " First cloud formation Template",
    "Parameters"  : {
        "KeyName": {
            "Description" : "Name of an existing EC2 KeyPair to enable SSH access to the instances",
            "Type": "AWS::EC2::KeyPair::KeyName",
            "ConstraintDescription" : "must be the name of an existing EC2 KeyPair."
          },

          "SSHLocation": {
            "Description": "The IP address range that can be used to SSH to the EC2 instances",
            "Type": "String",
            "MinLength": "9",
            "MaxLength": "18",
            "Default": "0.0.0.0/0",
            "AllowedPattern": "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})/(\\d{1,2})",
            "ConstraintDescription": "must be a valid IP CIDR range of the form x.x.x.x/x."
          },

          "InstanceType": {
            "Type":"String",
            "Default":"t2.medium",
            "AllowedValues":[
              "t2.micro",
              "t2.small",
              "t2.medium"
             ]

        }},

        "Resources": {
        "WebServerSecurityGroup": {
            "Type" : "AWS::EC2::SecurityGroup",
            "Properties" : {
                "GroupDescription" : "Enable HTTP access via port 80 locked down to the load balancer + SSH access",
                "SecurityGroupIngress" : [
                {"IpProtocol" : "tcp", "FromPort" : "80", "ToPort" : "80", "CidrIp" : "0.0.0.0/0"},
                {"IpProtocol" : "tcp", "FromPort" : "22", "ToPort" : "22", "CidrIp" : { "Ref" : "SSHLocation"}}
        ]
      }
        },
        "WebServer": {
            "Type" : "AWS::EC2::Instance",
            "Properties": {
                "ImageId" : "ami-064539632d142f8cd",
                "InstanceType"   : { "Ref" : "InstanceType" },
                "SecurityGroups" : [ {"Ref" : "WebServerSecurityGroup"} ],
                "KeyName"        : { "Ref" : "KeyName" }
                                }
              }

    }

}