---
AWSTemplateFormatVersion: "2010-09-09"
Description: >
  DependsOn
Conditions:
  defaultRegion: !Equals [!Ref "AWS::Region", "us-east-1"]
Resources:
  myInstance1:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: String
  myInstance2:
    DependsOn: badInstance
    Type: AWS::EC2::Instance
    Properties:
      ImageId: String
  myInstance3:
    DependsOn:
    - badInstance
    Type: AWS::EC2::Instance
    Properties:
      ImageId: String
  myInstance4:
    DependsOn:
    - Resource: badInstance
    Type: AWS::EC2::Instance
    Properties:
      ImageId: String
  myInstance5:
    Type: AWS::EC2::Instance
    DependsOn: myInstance4
    Properties:
      ImageId: String
      Tags:
        - Key: "Dependency"
          Value: !Ref "myInstance4"
        - Key: "GetAtt"
          Value: !GetAtt [ myInstance4, AvailabilityZone ]
  myInstance6:
    Type: AWS::EC2::Instance
    Condition: defaultRegion
    Properties:
      ImageId: String
  myInstance7:
    Type: AWS::EC2::Instance
    DependsOn:
        - myInstance6
    Properties:
      ImageId: String