Paws::CloudFormation::ResourceChangeDetail
This class represents one of two things:
Use the attributes of this class as arguments to methods. You shouldn't make instances of this class. Each attribute should be used as a named argument in the calls that expect this type of object.
As an example, if Att1 is expected to be a Paws::CloudFormation::ResourceChangeDetail object:
$service_obj->Method(Att1 => { CausingEntity => $value, ..., Target => $value });
Use accessors for each attribute. If Att1 is expected to be an Paws::CloudFormation::ResourceChangeDetail object:
$result = $service_obj->Method(...); $result->Att1->CausingEntity
For a resource with Modify as the action, the ResourceChange structure describes the changes AWS CloudFormation will make to that resource.
Modify
ResourceChange
The identity of the entity that triggered this change. This entity is a member of the group that is specified by the C<ChangeSource> field. For example, if you modified the value of the C<KeyPairName> parameter, the C<CausingEntity> is the name of the parameter (C<KeyPairName>).
If the ChangeSource value is DirectModification, no value is given for CausingEntity.
ChangeSource
DirectModification
CausingEntity
The group to which the C<CausingEntity> value belongs. There are five entity groups:
ResourceReference entities are Ref intrinsic functions that refer to resources in the template, such as { "Ref" : "MyEC2InstanceResource" }.
ResourceReference
Ref
{ "Ref" : "MyEC2InstanceResource" }
ParameterReference entities are Ref intrinsic functions that get template parameter values, such as { "Ref" : "MyPasswordParameter" }.
ParameterReference
{ "Ref" : "MyPasswordParameter" }
ResourceAttribute entities are Fn::GetAtt intrinsic functions that get resource attribute values, such as { "Fn::GetAtt" : [ "MyEC2InstanceResource", "PublicDnsName" ] }.
ResourceAttribute
Fn::GetAtt
{ "Fn::GetAtt" : [ "MyEC2InstanceResource", "PublicDnsName" ] }
DirectModification entities are changes that are made directly to the template.
Automatic entities are AWS::CloudFormation::Stack resource types, which are also known as nested stacks. If you made no changes to the AWS::CloudFormation::Stack resource, AWS CloudFormation sets the ChangeSource to Automatic because the nested stack's template might have changed. Changes to a nested stack's template aren't visible to AWS CloudFormation until you run an update on the parent stack.
Automatic
AWS::CloudFormation::Stack
Indicates whether AWS CloudFormation can determine the target value, and whether the target value will change before you execute a change set.
For Static evaluations, AWS CloudFormation can determine that the target value will change, and its value. For example, if you directly modify the InstanceType property of an EC2 instance, AWS CloudFormation knows that this property value will change, and its value, so this is a Static evaluation.
Static
InstanceType
For Dynamic evaluations, cannot determine the target value because it depends on the result of an intrinsic function, such as a Ref or Fn::GetAtt intrinsic function, when the stack is updated. For example, if your template includes a reference to a resource that is conditionally recreated, the value of the reference (the physical ID of the resource) might change, depending on if the resource is recreated. If the resource is recreated, it will have a new physical ID, so all references to that resource will also be updated.
Dynamic
A C<ResourceTargetDefinition> structure that describes the field that AWS CloudFormation will change and whether the resource will be recreated.
This class forms part of Paws, describing an object used in Paws::CloudFormation
The source code is located here: https://github.com/pplu/aws-sdk-perl
Please report bugs to: https://github.com/pplu/aws-sdk-perl/issues
To install Paws::SDK::Config, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Paws::SDK::Config
CPAN shell
perl -MCPAN -e shell install Paws::SDK::Config
For more information on module installation, please visit the detailed CPAN module installation guide.