---
AWSTemplateFormatVersion: '2010-09-09'
Description: Demo CloudFormation stack that creates EC2 Instance and a Security Group
Parameters:
  InstanceType:
    Default: t3.micro
    Type: String
  KeyName:
    Type: String
Mappings:
  AmiMap:
    ap-northeast-1:
      Ami: ami-0f9ae750e8274075b
    ap-northeast-2:
      Ami: ami-047f7b46bd6dd5d84
    ap-south-1:
      Ami: ami-0889b8a448de4fc44
    ap-southeast-1:
      Ami: ami-0b419c3a4b01d1859
    ap-southeast-2:
      Ami: ami-04481c741a0311bbb
    ca-central-1:
      Ami: ami-03338e1f67dae0168
    eu-central-1:
      Ami: ami-09def150731bdbcc2
    eu-north-1:
      Ami: ami-d16fe6af
    eu-west-1:
      Ami: ami-07683a44e80cd32c5
    eu-west-2:
      Ami: ami-09ead922c1dad67e4
    eu-west-3:
      Ami: ami-0451ae4fd8dd178f7
    sa-east-1:
      Ami: ami-0669a96e355eac82f
    us-east-1:
      Ami: ami-0de53d8956e8dcf80
    us-east-2:
      Ami: ami-02bcbb802e03574ba
    us-west-1:
      Ami: ami-0019ef04ac50be30f
    us-west-2:
      Ami: ami-061392db613a6357b
Resources:
  Instance:
    Type: AWS::EC2::Instance
    Properties:
      ImageId:
        Fn::FindInMap:
        - AmiMap
        - Ref: AWS::Region
        - Ami
      InstanceType:
        Ref: InstanceType
      KeyName:
        Ref: KeyName
      Monitoring: true
      SecurityGroupIds:
      - Fn::GetAtt:
        - SecurityGroup
        - GroupId
      UserData:
        Fn::Base64:
          Fn::Sub:
          - |
            #!/bin/bash
            /opt/aws/bin/cfn-init -v --stack ${AWS::StackName} --resource Instance --region ${AWS::Region}
          - {}
  SecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: demo security group
      SecurityGroupIngress:
      - CidrIp: 0.0.0.0/0
        FromPort: 22
        IpProtocol: tcp
        ToPort: 22