crossstack-output-sender-securitygroup.yml

AWSTemplateFormatVersion: 2010-09-09
Description: Creating security group and passing it cross stack.
Parameters:
  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.
Resources:
  InstanceSecurityGroup:
    Type: 'AWS::EC2::SecurityGroup'
    Properties:
      GroupDescription: Enable SSH access via port 22
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: '22'
          ToPort: '22'
          CidrIp: !Ref SSHLocation
Outputs:
  EC2SecurityGroup:
    Description: Security Group to be used in EC2
    Value: !GetAtt 
      - InstanceSecurityGroup
      - GroupId
    Export:
      Name: !Sub '${AWS::StackName}-SecurityGroupId'