---
AWSTemplateFormatVersion: "2010-09-09"
Description: >
  Test Split
Parameters:
  delimiter:
    Type: String
    Default: ','
Resources:
  myInstance1:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: String
      AvailabilityZone: !Select
      - 0
      - !Split [ !Ref delimiter, 'us-east-1a, us-east-2b' ]
  myInstance2:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: String
      AvailabilityZone: !Select
      - 0
      - Fn::Split:
        - ','
        - !GetAZs ""
        - !Ref AWS::Region
  myInstance3:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: String
      AvailabilityZone: !Select
      - 0
      - Fn::Split: {Ref: AWS::Region}
  myInstance4:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: String
      AvailabilityZone: !Select
      - 0
      - !Split [":", "{{resolve:ssm:/vpc/subnets/private}}"]