block8.

AwesomeEC2Instance:
    Type: AWS::EC2::Instance
    Properties:
      InstanceType: t2.micro
      ImageId: ami-0947d2ba12ee1ff75
      Tags:
        - Key: Name
          Value: Private Instance
      KeyName: !Ref KeyName
      NetworkInterfaces:
        - AssociatePublicIpAddress: true
          DeviceIndex: 0
          GroupSet:
            - !Ref AwesomeSecurityGroup
          SubnetId:
            !Ref SubnetPrivate
  AwesomeSecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      VpcId: !Ref SubnetPrivate
      GroupDescription: Enable SSH access via port 22
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 22
          ToPort: 22
          CidrIp: 0.0.0.0/0