2026/06/30 - AWS CloudFormation - 7 updated api methods
Changes AWS CloudFormation adds a DeploymentConfig parameter to enable Express mode, which completes stack operations as soon as resource configuration is applied. Also adds a DisableValidation parameter to skip pre-deployment validation, which now runs automatically on CreateStack and UpdateStak.
{'DeploymentConfig': {'DisableRollback': 'boolean',
'Mode': 'STANDARD | EXPRESS'},
'DisableValidation': 'boolean'}
Creates a list of changes that will be applied to a stack so that you can review the changes before executing them. You can create a change set for a stack that doesn't exist or an existing stack. If you create a change set for a stack that doesn't exist, the change set shows all of the resources that CloudFormation will create. If you create a change set for an existing stack, CloudFormation compares the stack's information with the information that you submit in the change set and lists the differences. Use change sets to understand which resources CloudFormation will create or change, and how it will change resources in an existing stack, before you create or update a stack.
To create a change set for a stack that doesn't exist, for the ChangeSetType parameter, specify CREATE. To create a change set for an existing stack, specify UPDATE for the ChangeSetType parameter. To create a change set for an import operation, specify IMPORT for the ChangeSetType parameter. After the CreateChangeSet call successfully completes, CloudFormation starts creating the change set. To check the status of the change set or to review it, use the DescribeChangeSet action.
When you are satisfied with the changes the change set will make, execute the change set by using the ExecuteChangeSet action. CloudFormation doesn't make changes until you execute the change set.
To create a change set for the entire stack hierarchy, set IncludeNestedStacks to True.
See also: AWS API Documentation
Request Syntax
client.create_change_set(
StackName='string',
TemplateBody='string',
TemplateURL='string',
UsePreviousTemplate=True|False,
Parameters=[
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
Capabilities=[
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM'|'CAPABILITY_AUTO_EXPAND',
],
ResourceTypes=[
'string',
],
RoleARN='string',
RollbackConfiguration={
'RollbackTriggers': [
{
'Arn': 'string',
'Type': 'string'
},
],
'MonitoringTimeInMinutes': 123
},
NotificationARNs=[
'string',
],
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
ChangeSetName='string',
ClientToken='string',
Description='string',
ChangeSetType='CREATE'|'UPDATE'|'IMPORT',
ResourcesToImport=[
{
'ResourceType': 'string',
'LogicalResourceId': 'string',
'ResourceIdentifier': {
'string': 'string'
}
},
],
IncludeNestedStacks=True|False,
OnStackFailure='DO_NOTHING'|'ROLLBACK'|'DELETE',
ImportExistingResources=True|False,
DeploymentMode='REVERT_DRIFT',
DeploymentConfig={
'Mode': 'STANDARD'|'EXPRESS',
'DisableRollback': True|False
},
DisableValidation=True|False
)
string
[REQUIRED]
The name or the unique ID of the stack for which you are creating a change set. CloudFormation generates the change set by comparing this stack's information with the information that you submit, such as a modified template or different parameter input values.
string
A structure that contains the body of the revised template, with a minimum length of 1 byte and a maximum length of 51,200 bytes. CloudFormation generates the change set by comparing this template with the template of the stack that you specified.
Conditional: You must specify only one of the following parameters: TemplateBody, TemplateURL, or set the UsePreviousTemplate to true.
string
The URL of the file that contains the revised template. The URL must point to a template (max size: 1 MB) that's located in an Amazon S3 bucket or a Systems Manager document. CloudFormation generates the change set by comparing this template with the stack that you specified. The location for an Amazon S3 bucket must start with https://. URLs from S3 static websites are not supported.
Conditional: You must specify only one of the following parameters: TemplateBody, TemplateURL, or set the UsePreviousTemplate to true.
boolean
Whether to reuse the template that's associated with the stack to create the change set.
When using templates with the AWS::LanguageExtensions transform, provide the template instead of using UsePreviousTemplate to ensure new parameter values and Systems Manager parameter updates are applied correctly. For more information, see AWS::LanguageExtensions transform.
Conditional: You must specify only one of the following parameters: TemplateBody, TemplateURL, or set the UsePreviousTemplate to true.
list
A list of Parameter structures that specify input parameters for the change set. For more information, see the Parameter data type.
(dict) --
The Parameter data type.
ParameterKey (string) --
The key associated with the parameter. If you don't specify a key and value for a particular parameter, CloudFormation uses the default value that's specified in your template.
ParameterValue (string) --
The input value associated with the parameter.
UsePreviousValue (boolean) --
During a stack update, use the existing parameter value that the stack is using for a given parameter key. If you specify true, do not specify a parameter value.
ResolvedValue (string) --
Read-only. The value that corresponds to a Systems Manager parameter key. This field is returned only for Systems Manager parameter types in the template. For more information, see Specify existing resources at runtime with CloudFormation-supplied parameter types in the CloudFormation User Guide.
list
In some cases, you must explicitly acknowledge that your stack template contains certain capabilities in order for CloudFormation to create the stack.
CAPABILITY_IAM and CAPABILITY_NAMED_IAM Some stack templates might include resources that can affect permissions in your Amazon Web Services account, for example, by creating new IAM users. For those stacks, you must explicitly acknowledge this by specifying one of these capabilities. The following IAM resources require you to specify either the CAPABILITY_IAM or CAPABILITY_NAMED_IAM capability.
If you have IAM resources, you can specify either capability.
If you have IAM resources with custom names, you must specify CAPABILITY_NAMED_IAM.
If you don't specify either of these capabilities, CloudFormation returns an InsufficientCapabilities error.
If your stack template contains these resources, we suggest that you review all permissions associated with them and edit their permissions if necessary.
For more information, see Acknowledging IAM resources in CloudFormation templates.
CAPABILITY_AUTO_EXPAND Some template contain macros. Macros perform custom processing on templates; this can include simple actions like find-and-replace operations, all the way to extensive transformations of entire templates. Because of this, users typically create a change set from the processed template, so that they can review the changes resulting from the macros before actually creating the stack. If your stack template contains one or more macros, and you choose to create a stack directly from the processed template, without first reviewing the resulting changes in a change set, you must acknowledge this capability. This includes the AWS::Include and AWS::Serverless transforms, which are macros hosted by CloudFormation.
(string) --
list
Specifies which resource types you can work with, such as AWS::EC2::Instance or Custom::MyCustomInstance.
If the list of resource types doesn't include a resource type that you're updating, the stack update fails. By default, CloudFormation grants permissions to all resource types. IAM uses this parameter for condition keys in IAM policies for CloudFormation. For more information, see Control CloudFormation access with Identity and Access Management in the CloudFormation User Guide.
(string) --
string
The Amazon Resource Name (ARN) of an IAM role that CloudFormation assumes when executing the change set. CloudFormation uses the role's credentials to make calls on your behalf. CloudFormation uses this role for all future operations on the stack. Provided that users have permission to operate on the stack, CloudFormation uses this role even if the users don't have permission to pass it. Ensure that the role grants least permission.
If you don't specify a value, CloudFormation uses the role that was previously associated with the stack. If no role is available, CloudFormation uses a temporary session that is generated from your user credentials.
dict
The rollback triggers for CloudFormation to monitor during stack creation and updating operations, and for the specified monitoring period afterwards.
RollbackTriggers (list) --
The triggers to monitor during stack creation or update actions.
By default, CloudFormation saves the rollback triggers specified for a stack and applies them to any subsequent update operations for the stack, unless you specify otherwise. If you do specify rollback triggers for this parameter, those triggers replace any list of triggers previously specified for the stack. This means:
To use the rollback triggers previously specified for this stack, if any, don't specify this parameter.
To specify new or updated rollback triggers, you must specify all the triggers that you want used for this stack, even triggers you've specified before (for example, when creating the stack or during a previous stack update). Any triggers that you don't include in the updated list of triggers are no longer applied to the stack.
To remove all currently specified triggers, specify an empty list for this parameter.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALARM state during the stack operation or within the specified monitoring period afterwards, CloudFormation rolls back the entire stack operation.
Arn (string) -- [REQUIRED]
The Amazon Resource Name (ARN) of the rollback trigger.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
Type (string) -- [REQUIRED]
The resource type of the rollback trigger. Specify either AWS::CloudWatch::Alarm or AWS::CloudWatch::CompositeAlarm resource types.
MonitoringTimeInMinutes (integer) --
The amount of time, in minutes, during which CloudFormation should monitor all the rollback triggers after the stack creation or update operation deploys all necessary resources.
The default is 0 minutes.
If you specify a monitoring period but don't specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources after update operations. You can use this monitoring period to perform any manual stack validation desired, and manually cancel the stack creation or update (using CancelUpdateStack, for example) as necessary.
If you specify 0 for this parameter, CloudFormation still monitors the specified rollback triggers during stack creation and update operations. Then, for update operations, it begins disposing of old resources immediately once the operation completes.
list
The Amazon Resource Names (ARNs) of Amazon SNS topics that CloudFormation associates with the stack. To remove all associated notification topics, specify an empty list.
(string) --
list
Key-value pairs to associate with this stack. CloudFormation also propagates these tags to resources in the stack. You can specify a maximum of 50 tags.
(dict) --
The Tag type enables you to specify a key-value pair that can be used to store information about an CloudFormation stack.
Key (string) -- [REQUIRED]
A string used to identify this tag. You can specify a maximum of 128 characters for a tag key. Tags owned by Amazon Web Services have the reserved prefix: aws:.
Value (string) -- [REQUIRED]
A string that contains the value for this tag. You can specify a maximum of 256 characters for a tag value.
string
[REQUIRED]
The name of the change set. The name must be unique among all change sets that are associated with the specified stack.
A change set name can contain only alphanumeric, case sensitive characters, and hyphens. It must start with an alphabetical character and can't exceed 128 characters.
string
A unique identifier for this CreateChangeSet request. Specify this token if you plan to retry requests so that CloudFormation knows that you're not attempting to create another change set with the same name. You might retry CreateChangeSet requests to ensure that CloudFormation successfully received them.
string
A description to help you identify this change set.
string
The type of change set operation. To create a change set for a new stack, specify CREATE. To create a change set for an existing stack, specify UPDATE. To create a change set for an import operation, specify IMPORT.
If you create a change set for a new stack, CloudFormation creates a stack with a unique stack ID, but no template or resources. The stack will be in the REVIEW_IN_PROGRESS state until you execute the change set.
By default, CloudFormation specifies UPDATE. You can't use the UPDATE type to create a change set for a new stack or the CREATE type to create a change set for an existing stack.
list
The resources to import into your stack.
(dict) --
Describes the target resource of an import operation.
ResourceType (string) -- [REQUIRED]
The type of resource to import into your stack, such as AWS::S3::Bucket. For a list of supported resource types, see Resource type support for imports and drift detection in the CloudFormation User Guide.
LogicalResourceId (string) -- [REQUIRED]
The logical ID of the target resource as specified in the template.
ResourceIdentifier (dict) -- [REQUIRED]
A key-value pair that identifies the target resource. The key is an identifier property (for example, BucketName for AWS::S3::Bucket resources) and the value is the actual property value (for example, MyS3Bucket).
(string) --
(string) --
boolean
Creates a change set for the all nested stacks specified in the template. The default behavior of this action is set to False. To include nested sets in a change set, specify True.
string
Determines what action will be taken if stack creation fails. If this parameter is specified, the DisableRollback parameter to the ExecuteChangeSet API operation must not be specified. This must be one of these values:
DELETE - Deletes the change set if the stack creation fails. This is only valid when the ChangeSetType parameter is set to CREATE. If the deletion of the stack fails, the status of the stack is DELETE_FAILED.
DO_NOTHING - if the stack creation fails, do nothing. This is equivalent to specifying true for the DisableRollback parameter to the ExecuteChangeSet API operation.
ROLLBACK - if the stack creation fails, roll back the stack. This is equivalent to specifying false for the DisableRollback parameter to the ExecuteChangeSet API operation.
For nested stacks, when the OnStackFailure parameter is set to DELETE for the change set for the parent stack, any failure in a child stack will cause the parent stack creation to fail and all stacks to be deleted.
boolean
Indicates if the change set auto-imports resources that already exist. For more information, see Import Amazon Web Services resources into a CloudFormation stack automatically in the CloudFormation User Guide.
string
Determines how CloudFormation handles configuration drift during deployment.
REVERT_DRIFT – Creates a drift-aware change set that brings actual resource states in line with template definitions. Provides a three-way comparison between actual state, previous deployment state, and desired state.
For more information, see Using drift-aware change sets in the CloudFormation User Guide.
dict
The deployment configuration for this stack operation, including the deployment mode.
Mode (string) --
Specifies the deployment mode for the stack operation. Possible values are:
STANDARD - Use the standard deployment behavior, ensuring resources are ready to serve traffic before completing the operation. This is the default. You do not need to specify this value explicitly.
EXPRESS - Complete the stack operation when resource configuration is applied, without waiting for resources to become ready to serve traffic. Resources continue becoming ready in the background.
DisableRollback (boolean) --
Specifies whether to disable rollback of the stack if the stack operation fails.
Default: false
boolean
Set to true to disable pre-deployment validations in changeset or stack operations.
Default: false
dict
Response Syntax
{
'Id': 'string',
'StackId': 'string'
}
Response Structure
(dict) --
The output for the CreateChangeSet action.
Id (string) --
The Amazon Resource Name (ARN) of the change set.
StackId (string) --
The unique ID of the stack.
{'DeploymentConfig': {'DisableRollback': 'boolean',
'Mode': 'STANDARD | EXPRESS'},
'DisableValidation': 'boolean'}
Creates a stack as specified in the template. After the call completes successfully, the stack creation starts. You can check the status of the stack through the DescribeStacks operation.
For more information about creating a stack and monitoring stack progress, see Managing Amazon Web Services resources as a single unit with CloudFormation stacks in the CloudFormation User Guide.
See also: AWS API Documentation
Request Syntax
client.create_stack(
StackName='string',
TemplateBody='string',
TemplateURL='string',
Parameters=[
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
DisableRollback=True|False,
RollbackConfiguration={
'RollbackTriggers': [
{
'Arn': 'string',
'Type': 'string'
},
],
'MonitoringTimeInMinutes': 123
},
TimeoutInMinutes=123,
NotificationARNs=[
'string',
],
Capabilities=[
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM'|'CAPABILITY_AUTO_EXPAND',
],
ResourceTypes=[
'string',
],
RoleARN='string',
OnFailure='DO_NOTHING'|'ROLLBACK'|'DELETE',
StackPolicyBody='string',
StackPolicyURL='string',
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
ClientRequestToken='string',
EnableTerminationProtection=True|False,
RetainExceptOnCreate=True|False,
DeploymentConfig={
'Mode': 'STANDARD'|'EXPRESS',
'DisableRollback': True|False
},
DisableValidation=True|False
)
string
[REQUIRED]
The name that's associated with the stack. The name must be unique in the Region in which you are creating the stack.
string
Structure that contains the template body with a minimum length of 1 byte and a maximum length of 51,200 bytes.
Conditional: You must specify either TemplateBody or TemplateURL, but not both.
string
The URL of a file that contains the template body. The URL must point to a template (max size: 1 MB) that's located in an Amazon S3 bucket or a Systems Manager document. The location for an Amazon S3 bucket must start with https://. URLs from S3 static websites are not supported.
Conditional: You must specify either the TemplateBody or the TemplateURL parameter, but not both.
list
A list of Parameter structures that specify input parameters for the stack. For more information, see the Parameter data type.
(dict) --
The Parameter data type.
ParameterKey (string) --
The key associated with the parameter. If you don't specify a key and value for a particular parameter, CloudFormation uses the default value that's specified in your template.
ParameterValue (string) --
The input value associated with the parameter.
UsePreviousValue (boolean) --
During a stack update, use the existing parameter value that the stack is using for a given parameter key. If you specify true, do not specify a parameter value.
ResolvedValue (string) --
Read-only. The value that corresponds to a Systems Manager parameter key. This field is returned only for Systems Manager parameter types in the template. For more information, see Specify existing resources at runtime with CloudFormation-supplied parameter types in the CloudFormation User Guide.
boolean
Set to true to disable rollback of the stack if stack creation failed. You can specify either DisableRollback or OnFailure, but not both.
Default: false
dict
The rollback triggers for CloudFormation to monitor during stack creation and updating operations, and for the specified monitoring period afterwards.
RollbackTriggers (list) --
The triggers to monitor during stack creation or update actions.
By default, CloudFormation saves the rollback triggers specified for a stack and applies them to any subsequent update operations for the stack, unless you specify otherwise. If you do specify rollback triggers for this parameter, those triggers replace any list of triggers previously specified for the stack. This means:
To use the rollback triggers previously specified for this stack, if any, don't specify this parameter.
To specify new or updated rollback triggers, you must specify all the triggers that you want used for this stack, even triggers you've specified before (for example, when creating the stack or during a previous stack update). Any triggers that you don't include in the updated list of triggers are no longer applied to the stack.
To remove all currently specified triggers, specify an empty list for this parameter.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALARM state during the stack operation or within the specified monitoring period afterwards, CloudFormation rolls back the entire stack operation.
Arn (string) -- [REQUIRED]
The Amazon Resource Name (ARN) of the rollback trigger.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
Type (string) -- [REQUIRED]
The resource type of the rollback trigger. Specify either AWS::CloudWatch::Alarm or AWS::CloudWatch::CompositeAlarm resource types.
MonitoringTimeInMinutes (integer) --
The amount of time, in minutes, during which CloudFormation should monitor all the rollback triggers after the stack creation or update operation deploys all necessary resources.
The default is 0 minutes.
If you specify a monitoring period but don't specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources after update operations. You can use this monitoring period to perform any manual stack validation desired, and manually cancel the stack creation or update (using CancelUpdateStack, for example) as necessary.
If you specify 0 for this parameter, CloudFormation still monitors the specified rollback triggers during stack creation and update operations. Then, for update operations, it begins disposing of old resources immediately once the operation completes.
integer
The amount of time that can pass before the stack status becomes CREATE_FAILED; if DisableRollback is not set or is set to false, the stack will be rolled back.
list
The Amazon SNS topic ARNs to publish stack related events. You can find your Amazon SNS topic ARNs using the Amazon SNS console or your Command Line Interface (CLI).
(string) --
list
In some cases, you must explicitly acknowledge that your stack template contains certain capabilities in order for CloudFormation to create the stack.
CAPABILITY_IAM and CAPABILITY_NAMED_IAM Some stack templates might include resources that can affect permissions in your Amazon Web Services account; for example, by creating new IAM users. For those stacks, you must explicitly acknowledge this by specifying one of these capabilities. The following IAM resources require you to specify either the CAPABILITY_IAM or CAPABILITY_NAMED_IAM capability.
If you have IAM resources, you can specify either capability.
If you have IAM resources with custom names, you must specify CAPABILITY_NAMED_IAM.
If you don't specify either of these capabilities, CloudFormation returns an InsufficientCapabilities error.
If your stack template contains these resources, we recommend that you review all permissions associated with them and edit their permissions if necessary.
For more information, see Acknowledging IAM resources in CloudFormation templates.
CAPABILITY_AUTO_EXPAND Some template contain macros. Macros perform custom processing on templates; this can include simple actions like find-and-replace operations, all the way to extensive transformations of entire templates. Because of this, users typically create a change set from the processed template, so that they can review the changes resulting from the macros before actually creating the stack. If your stack template contains one or more macros, and you choose to create a stack directly from the processed template, without first reviewing the resulting changes in a change set, you must acknowledge this capability. This includes the AWS::Include and AWS::Serverless transforms, which are macros hosted by CloudFormation. If you want to create a stack from a stack template that contains macros and nested stacks, you must create the stack directly from the template using this capability.
(string) --
list
Specifies which resource types you can work with, such as AWS::EC2::Instance or Custom::MyCustomInstance.
If the list of resource types doesn't include a resource that you're creating, the stack creation fails. By default, CloudFormation grants permissions to all resource types. IAM uses this parameter for CloudFormation-specific condition keys in IAM policies. For more information, see Control CloudFormation access with Identity and Access Management.
(string) --
string
The Amazon Resource Name (ARN) of an IAM role that CloudFormation assumes to create the stack. CloudFormation uses the role's credentials to make calls on your behalf. CloudFormation always uses this role for all future operations on the stack. Provided that users have permission to operate on the stack, CloudFormation uses this role even if the users don't have permission to pass it. Ensure that the role grants least privilege.
If you don't specify a value, CloudFormation uses the role that was previously associated with the stack. If no role is available, CloudFormation uses a temporary session that's generated from your user credentials.
string
Determines what action will be taken if stack creation fails. This must be one of: DO_NOTHING, ROLLBACK, or DELETE. You can specify either OnFailure or DisableRollback, but not both.
Default: ROLLBACK
string
Structure that contains the stack policy body. For more information, see Prevent updates to stack resources in the CloudFormation User Guide. You can specify either the StackPolicyBody or the StackPolicyURL parameter, but not both.
string
Location of a file that contains the stack policy. The URL must point to a policy (maximum size: 16 KB) located in an S3 bucket in the same Region as the stack. The location for an Amazon S3 bucket must start with https://. URLs from S3 static websites are not supported.
You can specify either the StackPolicyBody or the StackPolicyURL parameter, but not both.
list
Key-value pairs to associate with this stack. CloudFormation also propagates these tags to the resources created in the stack. A maximum number of 50 tags can be specified.
(dict) --
The Tag type enables you to specify a key-value pair that can be used to store information about an CloudFormation stack.
Key (string) -- [REQUIRED]
A string used to identify this tag. You can specify a maximum of 128 characters for a tag key. Tags owned by Amazon Web Services have the reserved prefix: aws:.
Value (string) -- [REQUIRED]
A string that contains the value for this tag. You can specify a maximum of 256 characters for a tag value.
string
A unique identifier for this CreateStack request. Specify this token if you plan to retry requests so that CloudFormation knows that you're not attempting to create a stack with the same name. You might retry CreateStack requests to ensure that CloudFormation successfully received them.
All events initiated by a given stack operation are assigned the same client request token, which you can use to track operations. For example, if you execute a CreateStack operation with the token token1, then all the StackEvents generated by that operation will have ClientRequestToken set as token1.
In the console, stack operations display the client request token on the Events tab. Stack operations that are initiated from the console use the token format Console-StackOperation-ID, which helps you easily identify the stack operation . For example, if you create a stack using the console, each stack event would be assigned the same token in the following format: Console-CreateStack-7f59c3cf-00d2-40c7-b2ff-e75db0987002.
boolean
Whether to enable termination protection on the specified stack. If a user attempts to delete a stack with termination protection enabled, the operation fails and the stack remains unchanged. For more information, see Protect CloudFormation stacks from being deleted in the CloudFormation User Guide. Termination protection is deactivated on stacks by default.
For nested stacks, termination protection is set on the root stack and can't be changed directly on the nested stack.
boolean
When set to true, newly created resources are deleted when the operation rolls back. This includes newly created resources marked with a deletion policy of Retain.
Default: false
dict
The deployment configuration for this stack operation, including the deployment mode.
Mode (string) --
Specifies the deployment mode for the stack operation. Possible values are:
STANDARD - Use the standard deployment behavior, ensuring resources are ready to serve traffic before completing the operation. This is the default. You do not need to specify this value explicitly.
EXPRESS - Complete the stack operation when resource configuration is applied, without waiting for resources to become ready to serve traffic. Resources continue becoming ready in the background.
DisableRollback (boolean) --
Specifies whether to disable rollback of the stack if the stack operation fails.
Default: false
boolean
Set to true to disable pre-deployment validations in changeset or stack operations.
Default: false
dict
Response Syntax
{
'StackId': 'string',
'OperationId': 'string'
}
Response Structure
(dict) --
The output for a CreateStack action.
StackId (string) --
Unique identifier of the stack.
OperationId (string) --
A unique identifier for this stack operation that can be used to track the operation's progress and events.
{'DeploymentConfig': {'DisableRollback': 'boolean',
'Mode': 'STANDARD | EXPRESS'}}
Deletes a specified stack. Once the call completes successfully, stack deletion starts. Deleted stacks don't show up in the DescribeStacks operation if the deletion has been completed successfully.
For more information about deleting a stack, see Delete a stack from the CloudFormation console in the CloudFormation User Guide.
See also: AWS API Documentation
Request Syntax
client.delete_stack(
StackName='string',
RetainResources=[
'string',
],
RoleARN='string',
ClientRequestToken='string',
DeletionMode='STANDARD'|'FORCE_DELETE_STACK',
DeploymentConfig={
'Mode': 'STANDARD'|'EXPRESS',
'DisableRollback': True|False
}
)
string
[REQUIRED]
The name or the unique stack ID that's associated with the stack.
list
For stacks in the DELETE_FAILED state, a list of resource logical IDs that are associated with the resources you want to retain. During deletion, CloudFormation deletes the stack but doesn't delete the retained resources.
Retaining resources is useful when you can't delete a resource, such as a non-empty S3 bucket, but you want to delete the stack.
(string) --
string
The Amazon Resource Name (ARN) of an IAM role that CloudFormation assumes to delete the stack. CloudFormation uses the role's credentials to make calls on your behalf.
If you don't specify a value, CloudFormation uses the role that was previously associated with the stack. If no role is available, CloudFormation uses a temporary session that's generated from your user credentials.
string
A unique identifier for this DeleteStack request. Specify this token if you plan to retry requests so that CloudFormation knows that you're not attempting to delete a stack with the same name. You might retry DeleteStack requests to ensure that CloudFormation successfully received them.
All events initiated by a given stack operation are assigned the same client request token, which you can use to track operations. For example, if you execute a CreateStack operation with the token token1, then all the StackEvents generated by that operation will have ClientRequestToken set as token1.
In the console, stack operations display the client request token on the Events tab. Stack operations that are initiated from the console use the token format Console-StackOperation-ID, which helps you easily identify the stack operation . For example, if you create a stack using the console, each stack event would be assigned the same token in the following format: Console-CreateStack-7f59c3cf-00d2-40c7-b2ff-e75db0987002.
string
Specifies the deletion mode for the stack. Possible values are:
STANDARD - Use the standard behavior. Specifying this value is the same as not specifying this parameter.
FORCE_DELETE_STACK - Delete the stack if it's stuck in a DELETE_FAILED state due to resource deletion failure.
dict
The deployment configuration for this stack operation, including the deployment mode.
Mode (string) --
Specifies the deployment mode for the stack operation. Possible values are:
STANDARD - Use the standard deployment behavior, ensuring resources are ready to serve traffic before completing the operation. This is the default. You do not need to specify this value explicitly.
EXPRESS - Complete the stack operation when resource configuration is applied, without waiting for resources to become ready to serve traffic. Resources continue becoming ready in the background.
DisableRollback (boolean) --
Specifies whether to disable rollback of the stack if the stack operation fails.
Default: false
None
{'DeploymentConfig': {'DisableRollback': 'boolean',
'Mode': 'STANDARD | EXPRESS'}}
Returns the inputs for the change set and a list of changes that CloudFormation will make if you execute the change set. For more information, see Update CloudFormation stacks using change sets in the CloudFormation User Guide.
See also: AWS API Documentation
Request Syntax
client.describe_change_set(
ChangeSetName='string',
StackName='string',
NextToken='string',
IncludePropertyValues=True|False
)
string
[REQUIRED]
The name or Amazon Resource Name (ARN) of the change set that you want to describe.
string
If you specified the name of a change set, specify the stack name or ID (ARN) of the change set you want to describe.
string
The token for the next set of items to return. (You received this token from a previous call.)
boolean
If true, the returned changes include detailed changes in the property values.
dict
Response Syntax
{
'ChangeSetName': 'string',
'ChangeSetId': 'string',
'StackId': 'string',
'StackName': 'string',
'Description': 'string',
'Parameters': [
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
'CreationTime': datetime(2015, 1, 1),
'ExecutionStatus': 'UNAVAILABLE'|'AVAILABLE'|'EXECUTE_IN_PROGRESS'|'EXECUTE_COMPLETE'|'EXECUTE_FAILED'|'OBSOLETE',
'Status': 'CREATE_PENDING'|'CREATE_IN_PROGRESS'|'CREATE_COMPLETE'|'DELETE_PENDING'|'DELETE_IN_PROGRESS'|'DELETE_COMPLETE'|'DELETE_FAILED'|'FAILED',
'StatusReason': 'string',
'StackDriftStatus': 'DRIFTED'|'IN_SYNC'|'UNKNOWN'|'NOT_CHECKED',
'NotificationARNs': [
'string',
],
'RollbackConfiguration': {
'RollbackTriggers': [
{
'Arn': 'string',
'Type': 'string'
},
],
'MonitoringTimeInMinutes': 123
},
'Capabilities': [
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM'|'CAPABILITY_AUTO_EXPAND',
],
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'Changes': [
{
'Type': 'Resource',
'HookInvocationCount': 123,
'ResourceChange': {
'PolicyAction': 'Delete'|'Retain'|'Snapshot'|'ReplaceAndDelete'|'ReplaceAndRetain'|'ReplaceAndSnapshot',
'Action': 'Add'|'Modify'|'Remove'|'Import'|'Dynamic'|'SyncWithActual',
'LogicalResourceId': 'string',
'PhysicalResourceId': 'string',
'ResourceType': 'string',
'Replacement': 'True'|'False'|'Conditional',
'Scope': [
'Properties'|'Metadata'|'CreationPolicy'|'UpdatePolicy'|'DeletionPolicy'|'UpdateReplacePolicy'|'Tags',
],
'ResourceDriftStatus': 'IN_SYNC'|'MODIFIED'|'DELETED'|'NOT_CHECKED'|'UNKNOWN'|'UNSUPPORTED',
'ResourceDriftIgnoredAttributes': [
{
'Path': 'string',
'Reason': 'MANAGED_BY_AWS'|'WRITE_ONLY_PROPERTY'
},
],
'Details': [
{
'Target': {
'Attribute': 'Properties'|'Metadata'|'CreationPolicy'|'UpdatePolicy'|'DeletionPolicy'|'UpdateReplacePolicy'|'Tags',
'Name': 'string',
'RequiresRecreation': 'Never'|'Conditionally'|'Always',
'Path': 'string',
'BeforeValue': 'string',
'AfterValue': 'string',
'BeforeValueFrom': 'PREVIOUS_DEPLOYMENT_STATE'|'ACTUAL_STATE',
'AfterValueFrom': 'TEMPLATE',
'Drift': {
'PreviousValue': 'string',
'ActualValue': 'string',
'DriftDetectionTimestamp': datetime(2015, 1, 1)
},
'AttributeChangeType': 'Add'|'Remove'|'Modify'|'SyncWithActual'
},
'Evaluation': 'Static'|'Dynamic',
'ChangeSource': 'ResourceReference'|'ParameterReference'|'ResourceAttribute'|'DirectModification'|'Automatic'|'NoModification',
'CausingEntity': 'string'
},
],
'ChangeSetId': 'string',
'ModuleInfo': {
'TypeHierarchy': 'string',
'LogicalIdHierarchy': 'string'
},
'BeforeContext': 'string',
'AfterContext': 'string',
'PreviousDeploymentContext': 'string'
}
},
],
'NextToken': 'string',
'IncludeNestedStacks': True|False,
'ParentChangeSetId': 'string',
'RootChangeSetId': 'string',
'OnStackFailure': 'DO_NOTHING'|'ROLLBACK'|'DELETE',
'ImportExistingResources': True|False,
'DeploymentMode': 'REVERT_DRIFT',
'DeploymentConfig': {
'Mode': 'STANDARD'|'EXPRESS',
'DisableRollback': True|False
}
}
Response Structure
(dict) --
The output for the DescribeChangeSet action.
ChangeSetName (string) --
The name of the change set.
ChangeSetId (string) --
The Amazon Resource Name (ARN) of the change set.
StackId (string) --
The Amazon Resource Name (ARN) of the stack that's associated with the change set.
StackName (string) --
The name of the stack that's associated with the change set.
Description (string) --
Information about the change set.
Parameters (list) --
A list of Parameter structures that describes the input parameters and their values used to create the change set. For more information, see the Parameter data type.
(dict) --
The Parameter data type.
ParameterKey (string) --
The key associated with the parameter. If you don't specify a key and value for a particular parameter, CloudFormation uses the default value that's specified in your template.
ParameterValue (string) --
The input value associated with the parameter.
UsePreviousValue (boolean) --
During a stack update, use the existing parameter value that the stack is using for a given parameter key. If you specify true, do not specify a parameter value.
ResolvedValue (string) --
Read-only. The value that corresponds to a Systems Manager parameter key. This field is returned only for Systems Manager parameter types in the template. For more information, see Specify existing resources at runtime with CloudFormation-supplied parameter types in the CloudFormation User Guide.
CreationTime (datetime) --
The start time when the change set was created, in UTC.
ExecutionStatus (string) --
If the change set execution status is AVAILABLE, you can execute the change set. If you can't execute the change set, the status indicates why. For example, a change set might be in an UNAVAILABLE state because CloudFormation is still creating it or in an OBSOLETE state because the stack was already updated.
Status (string) --
The current status of the change set, such as CREATE_PENDING, CREATE_COMPLETE, or FAILED.
StatusReason (string) --
A description of the change set's status. For example, if your attempt to create a change set failed, CloudFormation shows the error message.
StackDriftStatus (string) --
The drift status of the stack when the change set was created. Valid values:
DRIFTED – The stack has drifted from its last deployment.
IN_SYNC – The stack is in sync with its last deployment.
NOT_CHECKED – CloudFormation doesn’t currently return this value.
UNKNOWN – The drift status could not be determined.
Only present for drift-aware change sets.
NotificationARNs (list) --
The ARNs of the Amazon SNS topics that will be associated with the stack if you execute the change set.
(string) --
RollbackConfiguration (dict) --
The rollback triggers for CloudFormation to monitor during stack creation and updating operations, and for the specified monitoring period afterwards.
RollbackTriggers (list) --
The triggers to monitor during stack creation or update actions.
By default, CloudFormation saves the rollback triggers specified for a stack and applies them to any subsequent update operations for the stack, unless you specify otherwise. If you do specify rollback triggers for this parameter, those triggers replace any list of triggers previously specified for the stack. This means:
To use the rollback triggers previously specified for this stack, if any, don't specify this parameter.
To specify new or updated rollback triggers, you must specify all the triggers that you want used for this stack, even triggers you've specified before (for example, when creating the stack or during a previous stack update). Any triggers that you don't include in the updated list of triggers are no longer applied to the stack.
To remove all currently specified triggers, specify an empty list for this parameter.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALARM state during the stack operation or within the specified monitoring period afterwards, CloudFormation rolls back the entire stack operation.
Arn (string) --
The Amazon Resource Name (ARN) of the rollback trigger.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
Type (string) --
The resource type of the rollback trigger. Specify either AWS::CloudWatch::Alarm or AWS::CloudWatch::CompositeAlarm resource types.
MonitoringTimeInMinutes (integer) --
The amount of time, in minutes, during which CloudFormation should monitor all the rollback triggers after the stack creation or update operation deploys all necessary resources.
The default is 0 minutes.
If you specify a monitoring period but don't specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources after update operations. You can use this monitoring period to perform any manual stack validation desired, and manually cancel the stack creation or update (using CancelUpdateStack, for example) as necessary.
If you specify 0 for this parameter, CloudFormation still monitors the specified rollback triggers during stack creation and update operations. Then, for update operations, it begins disposing of old resources immediately once the operation completes.
Capabilities (list) --
If you execute the change set, the list of capabilities that were explicitly acknowledged when the change set was created.
(string) --
Tags (list) --
If you execute the change set, the tags that will be associated with the stack.
(dict) --
The Tag type enables you to specify a key-value pair that can be used to store information about an CloudFormation stack.
Key (string) --
A string used to identify this tag. You can specify a maximum of 128 characters for a tag key. Tags owned by Amazon Web Services have the reserved prefix: aws:.
Value (string) --
A string that contains the value for this tag. You can specify a maximum of 256 characters for a tag value.
Changes (list) --
A list of Change structures that describes the resources CloudFormation changes if you execute the change set.
(dict) --
The Change structure describes the changes CloudFormation will perform if you execute the change set.
Type (string) --
The type of entity that CloudFormation changes.
Resource This change is for a resource.
HookInvocationCount (integer) --
Is either null, if no Hooks invoke for the resource, or contains the number of Hooks that will invoke for the resource.
ResourceChange (dict) --
A ResourceChange structure that describes the resource and action that CloudFormation will perform.
PolicyAction (string) --
The action that will be taken on the physical resource when the change set is executed.
Delete The resource will be deleted.
Retain The resource will be retained.
Snapshot The resource will have a snapshot taken.
ReplaceAndDelete The resource will be replaced and then deleted.
ReplaceAndRetain The resource will be replaced and then retained.
ReplaceAndSnapshot The resource will be replaced and then have a snapshot taken.
Action (string) --
The action that CloudFormation takes on the resource, such as Add (adds a new resource), Modify (changes a resource), Remove (deletes a resource), Import (imports a resource), Dynamic (exact action for the resource can't be determined), or SyncWithActual (resource will not be changed, only CloudFormation metadata will change).
LogicalResourceId (string) --
The resource's logical ID, which is defined in the stack's template.
PhysicalResourceId (string) --
The resource's physical ID (resource name). Resources that you are adding don't have physical IDs because they haven't been created.
ResourceType (string) --
The type of CloudFormation resource, such as AWS::S3::Bucket.
Replacement (string) --
For the Modify action, indicates whether CloudFormation will replace the resource by creating a new one and deleting the old one. This value depends on the value of the RequiresRecreation property in the ResourceTargetDefinition structure. For example, if the RequiresRecreation field is Always and the Evaluation field is Static, Replacement is True. If the RequiresRecreation field is Always and the Evaluation field is Dynamic, Replacement is Conditional.
If you have multiple changes with different RequiresRecreation values, the Replacement value depends on the change with the most impact. A RequiresRecreation value of Always has the most impact, followed by Conditional, and then Never.
Scope (list) --
For the Modify action, indicates which resource attribute is triggering this update, such as a change in the resource attribute's Metadata, Properties, or Tags.
(string) --
ResourceDriftStatus (string) --
The drift status of the resource. Valid values:
IN_SYNC – The resource matches its template definition.
MODIFIED – Resource properties were modified outside CloudFormation.
DELETED – The resource was deleted outside CloudFormation.
NOT_CHECKED – CloudFormation doesn’t currently return this value.
UNKNOWN – Drift status could not be determined.
UNSUPPORTED – Resource type does not support actual state comparison.
Only present for drift-aware change sets.
ResourceDriftIgnoredAttributes (list) --
List of resource attributes for which drift was ignored.
(dict) --
The ResourceDriftIgnoredAttribute data type.
Path (string) --
Path of the resource attribute for which drift was ignored.
Reason (string) --
Reason why drift was ignored for the attribute, can have 2 possible values:
WRITE_ONLY_PROPERTY - Property is not included in read response for the resource’s live state.
MANAGED_BY_AWS - Property is managed by an Amazon Web Services service and is expected to be dynamically modified.
Details (list) --
For the Modify action, a list of ResourceChangeDetail structures that describes the changes that CloudFormation will make to the resource.
(dict) --
For a resource with Modify as the action, the ResourceChange structure describes the changes CloudFormation will make to that resource.
Target (dict) --
A ResourceTargetDefinition structure that describes the field that CloudFormation will change and whether the resource will be recreated.
Attribute (string) --
Indicates which resource attribute is triggering this update, such as a change in the resource attribute's Metadata, Properties, or Tags.
Name (string) --
If the Attribute value is Properties, the name of the property. For all other attributes, the value is null.
RequiresRecreation (string) --
If the Attribute value is Properties, indicates whether a change to this property causes the resource to be recreated. The value can be Never, Always, or Conditionally. To determine the conditions for a Conditionally recreation, see the update behavior for that property in the Amazon Web Services resource and property types reference in the CloudFormation User Guide.
Path (string) --
The property path of the property.
BeforeValue (string) --
The value of the property before the change is executed. Large values can be truncated.
AfterValue (string) --
The value of the property after the change is executed. Large values can be truncated.
BeforeValueFrom (string) --
Indicates the source of the before value. Valid values:
ACTUAL_STATE – The before value represents current actual state.
PREVIOUS_DEPLOYMENT_STATE – The before value represents the previous CloudFormation deployment state.
Only present for drift-aware change sets.
AfterValueFrom (string) --
Indicates the source of the after value. Valid value:
TEMPLATE – The after value comes from the new template.
Only present for drift-aware change sets.
Drift (dict) --
Detailed drift information for the resource property, including actual values, previous deployment values, and drift detection timestamps.
PreviousValue (string) --
The configuration value from the previous CloudFormation deployment.
ActualValue (string) --
The current live configuration value of the resource property.
DriftDetectionTimestamp (datetime) --
The timestamp when drift was detected for this resource property.
AttributeChangeType (string) --
The type of change to be made to the property if the change is executed.
Add The item will be added.
Remove The item will be removed.
Modify The item will be modified.
SyncWithActual The drift status of this item will be reset but the item will not be modified.
Evaluation (string) --
Indicates whether CloudFormation can determine the target value, and whether the target value will change before you execute a change set.
For Static evaluations, 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, CloudFormation knows that this property value will change, and its value, so this is a Static evaluation.
For Dynamic evaluations, can't 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's 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.
ChangeSource (string) --
The group to which the 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" }.
ParameterReference entities are Ref intrinsic functions that get template parameter values, such as { "Ref" : "MyPasswordParameter" }.
ResourceAttribute entities are Fn::GetAtt intrinsic functions that get resource attribute values, such as { "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, 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 CloudFormation until you run an update on the parent stack.
NoModification entities are changes made to the template that matches the actual state of the resource.
CausingEntity (string) --
The identity of the entity that triggered this change. This entity is a member of the group that's specified by the ChangeSource field. For example, if you modified the value of the KeyPairName parameter, the CausingEntity is the name of the parameter ( KeyPairName).
If the ChangeSource value is DirectModification, no value is given for CausingEntity.
ChangeSetId (string) --
The change set ID of the nested change set.
ModuleInfo (dict) --
Contains information about the module from which the resource was created, if the resource was created from a module included in the stack template.
TypeHierarchy (string) --
A concatenated list of the module type or types that contains the resource. Module types are listed starting with the inner-most nested module, and separated by /.
In the following example, the resource was created from a module of type AWS::First::Example::MODULE, that's nested inside a parent module of type AWS::Second::Example::MODULE.
AWS::First::Example::MODULE/AWS::Second::Example::MODULE
LogicalIdHierarchy (string) --
A concatenated list of the logical IDs of the module or modules that contains the resource. Modules are listed starting with the inner-most nested module, and separated by /.
In the following example, the resource was created from a module, moduleA, that's nested inside a parent module, moduleB.
moduleA/moduleB
For more information, see Reference module resources in CloudFormation templates in the CloudFormation User Guide.
BeforeContext (string) --
An encoded JSON string that contains the context of the resource before the change is executed.
AfterContext (string) --
An encoded JSON string that contains the context of the resource after the change is executed.
PreviousDeploymentContext (string) --
Information about the resource's state from the previous CloudFormation deployment.
NextToken (string) --
If the output exceeds 1 MB, a string that identifies the next page of changes. If there is no additional page, this value is null.
IncludeNestedStacks (boolean) --
Verifies if IncludeNestedStacks is set to True.
ParentChangeSetId (string) --
Specifies the change set ID of the parent change set in the current nested change set hierarchy.
RootChangeSetId (string) --
Specifies the change set ID of the root change set in the current nested change set hierarchy.
OnStackFailure (string) --
Determines what action will be taken if stack creation fails. When this parameter is specified, the DisableRollback parameter to the ExecuteChangeSet API operation must not be specified. This must be one of these values:
DELETE - Deletes the change set if the stack creation fails. This is only valid when the ChangeSetType parameter is set to CREATE. If the deletion of the stack fails, the status of the stack is DELETE_FAILED.
DO_NOTHING - if the stack creation fails, do nothing. This is equivalent to specifying true for the DisableRollback parameter to the ExecuteChangeSet API operation.
ROLLBACK - if the stack creation fails, roll back the stack. This is equivalent to specifying false for the DisableRollback parameter to the ExecuteChangeSet API operation.
ImportExistingResources (boolean) --
Indicates if the change set imports resources that already exist.
DeploymentMode (string) --
The deployment mode specified when the change set was created. Valid value is REVERT_DRIFT. Only present for drift-aware change sets.
DeploymentConfig (dict) --
The deployment configuration specified when the change set was created.
Mode (string) --
Specifies the deployment mode for the stack operation. Possible values are:
STANDARD - Use the standard deployment behavior, ensuring resources are ready to serve traffic before completing the operation. This is the default. You do not need to specify this value explicitly.
EXPRESS - Complete the stack operation when resource configuration is applied, without waiting for resources to become ready to serve traffic. Resources continue becoming ready in the background.
DisableRollback (boolean) --
Specifies whether to disable rollback of the stack if the stack operation fails.
Default: false
{'Stacks': {'DeploymentConfig': {'DisableRollback': 'boolean',
'Mode': 'STANDARD | EXPRESS'}}}
Returns the description for the specified stack; if no stack name was specified, then it returns the description for all the stacks created. For more information about a stack's event history, see Understand CloudFormation stack creation events in the CloudFormation User Guide.
See also: AWS API Documentation
Request Syntax
client.describe_stacks(
StackName='string',
NextToken='string'
)
string
The name or the unique stack ID that's associated with the stack, which aren't always interchangeable:
Running stacks: You can specify either the stack's name or its unique stack ID.
Deleted stacks: You must specify the unique stack ID.
string
The token for the next set of items to return. (You received this token from a previous call.)
dict
Response Syntax
{
'Stacks': [
{
'StackId': 'string',
'StackName': 'string',
'ChangeSetId': 'string',
'Description': 'string',
'Parameters': [
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
'CreationTime': datetime(2015, 1, 1),
'DeletionTime': datetime(2015, 1, 1),
'LastUpdatedTime': datetime(2015, 1, 1),
'RollbackConfiguration': {
'RollbackTriggers': [
{
'Arn': 'string',
'Type': 'string'
},
],
'MonitoringTimeInMinutes': 123
},
'StackStatus': 'CREATE_IN_PROGRESS'|'CREATE_FAILED'|'CREATE_COMPLETE'|'ROLLBACK_IN_PROGRESS'|'ROLLBACK_FAILED'|'ROLLBACK_COMPLETE'|'DELETE_IN_PROGRESS'|'DELETE_FAILED'|'DELETE_COMPLETE'|'UPDATE_IN_PROGRESS'|'UPDATE_COMPLETE_CLEANUP_IN_PROGRESS'|'UPDATE_COMPLETE'|'UPDATE_FAILED'|'UPDATE_ROLLBACK_IN_PROGRESS'|'UPDATE_ROLLBACK_FAILED'|'UPDATE_ROLLBACK_COMPLETE_CLEANUP_IN_PROGRESS'|'UPDATE_ROLLBACK_COMPLETE'|'REVIEW_IN_PROGRESS'|'IMPORT_IN_PROGRESS'|'IMPORT_COMPLETE'|'IMPORT_ROLLBACK_IN_PROGRESS'|'IMPORT_ROLLBACK_FAILED'|'IMPORT_ROLLBACK_COMPLETE',
'StackStatusReason': 'string',
'DisableRollback': True|False,
'DeploymentConfig': {
'Mode': 'STANDARD'|'EXPRESS',
'DisableRollback': True|False
},
'NotificationARNs': [
'string',
],
'TimeoutInMinutes': 123,
'Capabilities': [
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM'|'CAPABILITY_AUTO_EXPAND',
],
'Outputs': [
{
'OutputKey': 'string',
'OutputValue': 'string',
'Description': 'string',
'ExportName': 'string'
},
],
'RoleARN': 'string',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'EnableTerminationProtection': True|False,
'ParentId': 'string',
'RootId': 'string',
'DriftInformation': {
'StackDriftStatus': 'DRIFTED'|'IN_SYNC'|'UNKNOWN'|'NOT_CHECKED',
'LastCheckTimestamp': datetime(2015, 1, 1)
},
'RetainExceptOnCreate': True|False,
'DeletionMode': 'STANDARD'|'FORCE_DELETE_STACK',
'DetailedStatus': 'CONFIGURATION_COMPLETE'|'VALIDATION_FAILED',
'LastOperations': [
{
'OperationType': 'CREATE_STACK'|'UPDATE_STACK'|'DELETE_STACK'|'CONTINUE_ROLLBACK'|'ROLLBACK'|'CREATE_CHANGESET',
'OperationId': 'string'
},
]
},
],
'NextToken': 'string'
}
Response Structure
(dict) --
The output for a DescribeStacks action.
Stacks (list) --
A list of stack structures.
(dict) --
The Stack data type.
StackId (string) --
Unique identifier of the stack.
StackName (string) --
The name associated with the stack.
ChangeSetId (string) --
The unique ID of the change set.
Description (string) --
A user-defined description associated with the stack.
Parameters (list) --
A list of Parameter structures.
(dict) --
The Parameter data type.
ParameterKey (string) --
The key associated with the parameter. If you don't specify a key and value for a particular parameter, CloudFormation uses the default value that's specified in your template.
ParameterValue (string) --
The input value associated with the parameter.
UsePreviousValue (boolean) --
During a stack update, use the existing parameter value that the stack is using for a given parameter key. If you specify true, do not specify a parameter value.
ResolvedValue (string) --
Read-only. The value that corresponds to a Systems Manager parameter key. This field is returned only for Systems Manager parameter types in the template. For more information, see Specify existing resources at runtime with CloudFormation-supplied parameter types in the CloudFormation User Guide.
CreationTime (datetime) --
The time at which the stack was created.
DeletionTime (datetime) --
The time the stack was deleted.
LastUpdatedTime (datetime) --
The time the stack was last updated. This field will only be returned if the stack has been updated at least once.
RollbackConfiguration (dict) --
The rollback triggers for CloudFormation to monitor during stack creation and updating operations, and for the specified monitoring period afterwards.
RollbackTriggers (list) --
The triggers to monitor during stack creation or update actions.
By default, CloudFormation saves the rollback triggers specified for a stack and applies them to any subsequent update operations for the stack, unless you specify otherwise. If you do specify rollback triggers for this parameter, those triggers replace any list of triggers previously specified for the stack. This means:
To use the rollback triggers previously specified for this stack, if any, don't specify this parameter.
To specify new or updated rollback triggers, you must specify all the triggers that you want used for this stack, even triggers you've specified before (for example, when creating the stack or during a previous stack update). Any triggers that you don't include in the updated list of triggers are no longer applied to the stack.
To remove all currently specified triggers, specify an empty list for this parameter.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALARM state during the stack operation or within the specified monitoring period afterwards, CloudFormation rolls back the entire stack operation.
Arn (string) --
The Amazon Resource Name (ARN) of the rollback trigger.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
Type (string) --
The resource type of the rollback trigger. Specify either AWS::CloudWatch::Alarm or AWS::CloudWatch::CompositeAlarm resource types.
MonitoringTimeInMinutes (integer) --
The amount of time, in minutes, during which CloudFormation should monitor all the rollback triggers after the stack creation or update operation deploys all necessary resources.
The default is 0 minutes.
If you specify a monitoring period but don't specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources after update operations. You can use this monitoring period to perform any manual stack validation desired, and manually cancel the stack creation or update (using CancelUpdateStack, for example) as necessary.
If you specify 0 for this parameter, CloudFormation still monitors the specified rollback triggers during stack creation and update operations. Then, for update operations, it begins disposing of old resources immediately once the operation completes.
StackStatus (string) --
Current status of the stack.
StackStatusReason (string) --
Success/failure message associated with the stack status.
DisableRollback (boolean) --
Boolean to enable or disable rollback on stack creation failures:
true: disable rollback.
false: enable rollback.
DeploymentConfig (dict) --
The deployment configuration for the stack, including the deployment mode used for stack operations.
Mode (string) --
Specifies the deployment mode for the stack operation. Possible values are:
STANDARD - Use the standard deployment behavior, ensuring resources are ready to serve traffic before completing the operation. This is the default. You do not need to specify this value explicitly.
EXPRESS - Complete the stack operation when resource configuration is applied, without waiting for resources to become ready to serve traffic. Resources continue becoming ready in the background.
DisableRollback (boolean) --
Specifies whether to disable rollback of the stack if the stack operation fails.
Default: false
NotificationARNs (list) --
Amazon SNS topic Amazon Resource Names (ARNs) to which stack related events are published.
(string) --
TimeoutInMinutes (integer) --
The amount of time within which stack creation should complete.
Capabilities (list) --
The capabilities allowed in the stack.
(string) --
Outputs (list) --
A list of output structures.
(dict) --
The Output data type.
OutputKey (string) --
The key associated with the output.
OutputValue (string) --
The value associated with the output.
Description (string) --
User defined description associated with the output.
ExportName (string) --
The name of the export associated with the output.
RoleARN (string) --
The Amazon Resource Name (ARN) of an IAM role that's associated with the stack. During a stack operation, CloudFormation uses this role's credentials to make calls on your behalf.
Tags (list) --
A list of ``Tag``s that specify information about the stack.
(dict) --
The Tag type enables you to specify a key-value pair that can be used to store information about an CloudFormation stack.
Key (string) --
A string used to identify this tag. You can specify a maximum of 128 characters for a tag key. Tags owned by Amazon Web Services have the reserved prefix: aws:.
Value (string) --
A string that contains the value for this tag. You can specify a maximum of 256 characters for a tag value.
EnableTerminationProtection (boolean) --
Whether termination protection is enabled for the stack.
For nested stacks, termination protection is set on the root stack and can't be changed directly on the nested stack. For more information, see Protect a CloudFormation stack from being deleted in the CloudFormation User Guide.
ParentId (string) --
For nested stacks, the stack ID of the direct parent of this stack. For the first level of nested stacks, the root stack is also the parent stack.
For more information, see Nested stacks in the CloudFormation User Guide.
RootId (string) --
For nested stacks, the stack ID of the top-level stack to which the nested stack ultimately belongs.
For more information, see Nested stacks in the CloudFormation User Guide.
DriftInformation (dict) --
Information about whether a stack's actual configuration differs, or has drifted, from its expected configuration, as defined in the stack template and any values specified as template parameters. For more information, see Detect unmanaged configuration changes to stacks and resources with drift detection.
StackDriftStatus (string) --
Status of the stack's actual configuration compared to its expected template configuration.
DRIFTED: The stack differs from its expected template configuration. A stack is considered to have drifted if one or more of its resources have drifted.
NOT_CHECKED: CloudFormation hasn't checked if the stack differs from its expected template configuration.
IN_SYNC: The stack's actual configuration matches its expected template configuration.
UNKNOWN: CloudFormation could not run drift detection for a resource in the stack.
LastCheckTimestamp (datetime) --
Most recent time when a drift detection operation was initiated on the stack, or any of its individual resources that support drift detection.
RetainExceptOnCreate (boolean) --
When set to true, newly created resources are deleted when the operation rolls back. This includes newly created resources marked with a deletion policy of Retain.
Default: false
DeletionMode (string) --
Specifies the deletion mode for the stack. Possible values are:
STANDARD - Use the standard behavior. Specifying this value is the same as not specifying this parameter.
FORCE_DELETE_STACK - Delete the stack if it's stuck in a DELETE_FAILED state due to resource deletion failure.
DetailedStatus (string) --
The detailed status of the resource or stack. If CONFIGURATION_COMPLETE is present, the resource or resource configuration phase has completed and the stabilization of the resources is in progress. The StackSets CONFIGURATION_COMPLETE when all of the resources in the stack have reached that event. For more information, see Understand CloudFormation stack creation events in the CloudFormation User Guide.
LastOperations (list) --
Information about the most recent operations performed on this stack.
(dict) --
Contains information about a CloudFormation operation.
OperationType (string) --
The type of operation.
OperationId (string) --
The unique identifier for the operation.
NextToken (string) --
If the output exceeds 1 MB in size, a string that identifies the next page of stacks. If no additional page exists, this value is null.
{'DeploymentConfig': {'DisableRollback': 'boolean',
'Mode': 'STANDARD | EXPRESS'}}
When specifying RollbackStack, you preserve the state of previously provisioned resources when an operation fails. You can check the status of the stack through the DescribeStacks operation.
Rolls back the specified stack to the last known stable state from CREATE_FAILED or UPDATE_FAILED stack statuses.
This operation will delete a stack if it doesn't contain a last known stable state. A last known stable state includes any status in a *_COMPLETE. This includes the following stack statuses.
CREATE_COMPLETE
UPDATE_COMPLETE
UPDATE_ROLLBACK_COMPLETE
IMPORT_COMPLETE
IMPORT_ROLLBACK_COMPLETE
See also: AWS API Documentation
Request Syntax
client.rollback_stack(
StackName='string',
RoleARN='string',
ClientRequestToken='string',
RetainExceptOnCreate=True|False,
DeploymentConfig={
'Mode': 'STANDARD'|'EXPRESS',
'DisableRollback': True|False
}
)
string
[REQUIRED]
The name that's associated with the stack.
string
The Amazon Resource Name (ARN) of an IAM role that CloudFormation assumes to rollback the stack.
string
A unique identifier for this RollbackStack request.
boolean
When set to true, newly created resources are deleted when the operation rolls back. This includes newly created resources marked with a deletion policy of Retain.
Default: false
dict
The deployment configuration for this stack operation, including the deployment mode.
Mode (string) --
Specifies the deployment mode for the stack operation. Possible values are:
STANDARD - Use the standard deployment behavior, ensuring resources are ready to serve traffic before completing the operation. This is the default. You do not need to specify this value explicitly.
EXPRESS - Complete the stack operation when resource configuration is applied, without waiting for resources to become ready to serve traffic. Resources continue becoming ready in the background.
DisableRollback (boolean) --
Specifies whether to disable rollback of the stack if the stack operation fails.
Default: false
dict
Response Syntax
{
'StackId': 'string',
'OperationId': 'string'
}
Response Structure
(dict) --
StackId (string) --
Unique identifier of the stack.
OperationId (string) --
A unique identifier for this rollback operation that can be used to track the operation's progress and events.
{'DeploymentConfig': {'DisableRollback': 'boolean',
'Mode': 'STANDARD | EXPRESS'},
'DisableValidation': 'boolean'}
Updates a stack as specified in the template. After the call completes successfully, the stack update starts. You can check the status of the stack through the DescribeStacks action.
To get a copy of the template for an existing stack, you can use the GetTemplate action.
For more information about updating a stack and monitoring the progress of the update, see Managing Amazon Web Services resources as a single unit with CloudFormation stacks in the CloudFormation User Guide.
See also: AWS API Documentation
Request Syntax
client.update_stack(
StackName='string',
TemplateBody='string',
TemplateURL='string',
UsePreviousTemplate=True|False,
StackPolicyDuringUpdateBody='string',
StackPolicyDuringUpdateURL='string',
Parameters=[
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
Capabilities=[
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM'|'CAPABILITY_AUTO_EXPAND',
],
ResourceTypes=[
'string',
],
RoleARN='string',
RollbackConfiguration={
'RollbackTriggers': [
{
'Arn': 'string',
'Type': 'string'
},
],
'MonitoringTimeInMinutes': 123
},
StackPolicyBody='string',
StackPolicyURL='string',
NotificationARNs=[
'string',
],
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
DisableRollback=True|False,
ClientRequestToken='string',
RetainExceptOnCreate=True|False,
DeploymentConfig={
'Mode': 'STANDARD'|'EXPRESS',
'DisableRollback': True|False
},
DisableValidation=True|False
)
string
[REQUIRED]
The name or unique stack ID of the stack to update.
string
Structure that contains the template body with a minimum length of 1 byte and a maximum length of 51,200 bytes.
Conditional: You must specify only one of the following parameters: TemplateBody, TemplateURL, or set the UsePreviousTemplate to true.
string
The URL of a file that contains the template body. The URL must point to a template that's located in an Amazon S3 bucket or a Systems Manager document. The location for an Amazon S3 bucket must start with https://.
Conditional: You must specify only one of the following parameters: TemplateBody, TemplateURL, or set the UsePreviousTemplate to true.
boolean
Reuse the existing template that is associated with the stack that you are updating.
When using templates with the AWS::LanguageExtensions transform, provide the template instead of using UsePreviousTemplate to ensure new parameter values and Systems Manager parameter updates are applied correctly. For more information, see AWS::LanguageExtensions transform.
Conditional: You must specify only one of the following parameters: TemplateBody, TemplateURL, or set the UsePreviousTemplate to true.
string
Structure that contains the temporary overriding stack policy body. You can specify either the StackPolicyDuringUpdateBody or the StackPolicyDuringUpdateURL parameter, but not both.
If you want to update protected resources, specify a temporary overriding stack policy during this update. If you don't specify a stack policy, the current policy that is associated with the stack will be used.
string
Location of a file that contains the temporary overriding stack policy. The URL must point to a policy (max size: 16KB) located in an S3 bucket in the same Region as the stack. The location for an Amazon S3 bucket must start with https://. URLs from S3 static websites are not supported.
You can specify either the StackPolicyDuringUpdateBody or the StackPolicyDuringUpdateURL parameter, but not both.
If you want to update protected resources, specify a temporary overriding stack policy during this update. If you don't specify a stack policy, the current policy that is associated with the stack will be used.
list
A list of Parameter structures that specify input parameters for the stack. For more information, see the Parameter data type.
(dict) --
The Parameter data type.
ParameterKey (string) --
The key associated with the parameter. If you don't specify a key and value for a particular parameter, CloudFormation uses the default value that's specified in your template.
ParameterValue (string) --
The input value associated with the parameter.
UsePreviousValue (boolean) --
During a stack update, use the existing parameter value that the stack is using for a given parameter key. If you specify true, do not specify a parameter value.
ResolvedValue (string) --
Read-only. The value that corresponds to a Systems Manager parameter key. This field is returned only for Systems Manager parameter types in the template. For more information, see Specify existing resources at runtime with CloudFormation-supplied parameter types in the CloudFormation User Guide.
list
In some cases, you must explicitly acknowledge that your stack template contains certain capabilities in order for CloudFormation to update the stack.
CAPABILITY_IAM and CAPABILITY_NAMED_IAM Some stack templates might include resources that can affect permissions in your Amazon Web Services account, for example, by creating new IAM users. For those stacks, you must explicitly acknowledge this by specifying one of these capabilities. The following IAM resources require you to specify either the CAPABILITY_IAM or CAPABILITY_NAMED_IAM capability.
If you have IAM resources, you can specify either capability.
If you have IAM resources with custom names, you must specify CAPABILITY_NAMED_IAM.
If you don't specify either of these capabilities, CloudFormation returns an InsufficientCapabilities error.
If your stack template contains these resources, we suggest that you review all permissions associated with them and edit their permissions if necessary.
For more information, see Acknowledging IAM resources in CloudFormation templates.
CAPABILITY_AUTO_EXPAND Some template contain macros. Macros perform custom processing on templates; this can include simple actions like find-and-replace operations, all the way to extensive transformations of entire templates. Because of this, users typically create a change set from the processed template, so that they can review the changes resulting from the macros before actually updating the stack. If your stack template contains one or more macros, and you choose to update a stack directly from the processed template, without first reviewing the resulting changes in a change set, you must acknowledge this capability. This includes the AWS::Include and AWS::Serverless transforms, which are macros hosted by CloudFormation. If you want to update a stack from a stack template that contains macros and nested stacks, you must update the stack directly from the template using this capability.
(string) --
list
Specifies which resource types you can work with, such as AWS::EC2::Instance or Custom::MyCustomInstance.
If the list of resource types doesn't include a resource that you're updating, the stack update fails. By default, CloudFormation grants permissions to all resource types. IAM uses this parameter for CloudFormation-specific condition keys in IAM policies. For more information, see Control CloudFormation access with Identity and Access Management.
(string) --
string
The Amazon Resource Name (ARN) of an IAM role that CloudFormation assumes to update the stack. CloudFormation uses the role's credentials to make calls on your behalf. CloudFormation always uses this role for all future operations on the stack. Provided that users have permission to operate on the stack, CloudFormation uses this role even if the users don't have permission to pass it. Ensure that the role grants least privilege.
If you don't specify a value, CloudFormation uses the role that was previously associated with the stack. If no role is available, CloudFormation uses a temporary session that is generated from your user credentials.
dict
The rollback triggers for CloudFormation to monitor during stack creation and updating operations, and for the specified monitoring period afterwards.
RollbackTriggers (list) --
The triggers to monitor during stack creation or update actions.
By default, CloudFormation saves the rollback triggers specified for a stack and applies them to any subsequent update operations for the stack, unless you specify otherwise. If you do specify rollback triggers for this parameter, those triggers replace any list of triggers previously specified for the stack. This means:
To use the rollback triggers previously specified for this stack, if any, don't specify this parameter.
To specify new or updated rollback triggers, you must specify all the triggers that you want used for this stack, even triggers you've specified before (for example, when creating the stack or during a previous stack update). Any triggers that you don't include in the updated list of triggers are no longer applied to the stack.
To remove all currently specified triggers, specify an empty list for this parameter.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALARM state during the stack operation or within the specified monitoring period afterwards, CloudFormation rolls back the entire stack operation.
Arn (string) -- [REQUIRED]
The Amazon Resource Name (ARN) of the rollback trigger.
If a specified trigger is missing, the entire stack operation fails and is rolled back.
Type (string) -- [REQUIRED]
The resource type of the rollback trigger. Specify either AWS::CloudWatch::Alarm or AWS::CloudWatch::CompositeAlarm resource types.
MonitoringTimeInMinutes (integer) --
The amount of time, in minutes, during which CloudFormation should monitor all the rollback triggers after the stack creation or update operation deploys all necessary resources.
The default is 0 minutes.
If you specify a monitoring period but don't specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources after update operations. You can use this monitoring period to perform any manual stack validation desired, and manually cancel the stack creation or update (using CancelUpdateStack, for example) as necessary.
If you specify 0 for this parameter, CloudFormation still monitors the specified rollback triggers during stack creation and update operations. Then, for update operations, it begins disposing of old resources immediately once the operation completes.
string
Structure that contains a new stack policy body. You can specify either the StackPolicyBody or the StackPolicyURL parameter, but not both.
You might update the stack policy, for example, in order to protect a new resource that you created during a stack update. If you don't specify a stack policy, the current policy that is associated with the stack is unchanged.
string
Location of a file that contains the updated stack policy. The URL must point to a policy (max size: 16KB) located in an S3 bucket in the same Region as the stack. The location for an Amazon S3 bucket must start with https://. URLs from S3 static websites are not supported.
You can specify either the StackPolicyBody or the StackPolicyURL parameter, but not both.
You might update the stack policy, for example, in order to protect a new resource that you created during a stack update. If you don't specify a stack policy, the current policy that is associated with the stack is unchanged.
list
Amazon Simple Notification Service topic Amazon Resource Names (ARNs) that CloudFormation associates with the stack. Specify an empty list to remove all notification topics.
(string) --
list
Key-value pairs to associate with this stack. CloudFormation also propagates these tags to supported resources in the stack. You can specify a maximum number of 50 tags.
If you don't specify this parameter, CloudFormation doesn't modify the stack's tags. If you specify an empty value, CloudFormation removes all associated tags.
(dict) --
The Tag type enables you to specify a key-value pair that can be used to store information about an CloudFormation stack.
Key (string) -- [REQUIRED]
A string used to identify this tag. You can specify a maximum of 128 characters for a tag key. Tags owned by Amazon Web Services have the reserved prefix: aws:.
Value (string) -- [REQUIRED]
A string that contains the value for this tag. You can specify a maximum of 256 characters for a tag value.
boolean
Preserve the state of previously provisioned resources when an operation fails.
Default: False
string
A unique identifier for this UpdateStack request. Specify this token if you plan to retry requests so that CloudFormation knows that you're not attempting to update a stack with the same name. You might retry UpdateStack requests to ensure that CloudFormation successfully received them.
All events triggered by a given stack operation are assigned the same client request token, which you can use to track operations. For example, if you execute a CreateStack operation with the token token1, then all the StackEvents generated by that operation will have ClientRequestToken set as token1.
In the console, stack operations display the client request token on the Events tab. Stack operations that are initiated from the console use the token format Console-StackOperation-ID, which helps you easily identify the stack operation . For example, if you create a stack using the console, each stack event would be assigned the same token in the following format: Console-CreateStack-7f59c3cf-00d2-40c7-b2ff-e75db0987002.
boolean
When set to true, newly created resources are deleted when the operation rolls back. This includes newly created resources marked with a deletion policy of Retain.
Default: false
dict
The deployment configuration for this stack operation, including the deployment mode.
Mode (string) --
Specifies the deployment mode for the stack operation. Possible values are:
STANDARD - Use the standard deployment behavior, ensuring resources are ready to serve traffic before completing the operation. This is the default. You do not need to specify this value explicitly.
EXPRESS - Complete the stack operation when resource configuration is applied, without waiting for resources to become ready to serve traffic. Resources continue becoming ready in the background.
DisableRollback (boolean) --
Specifies whether to disable rollback of the stack if the stack operation fails.
Default: false
boolean
Set to true to disable pre-deployment validations in changeset or stack operations.
Default: false
dict
Response Syntax
{
'StackId': 'string',
'OperationId': 'string'
}
Response Structure
(dict) --
The output for an UpdateStack action.
StackId (string) --
Unique identifier of the stack.
OperationId (string) --
A unique identifier for this update operation that can be used to track the operation's progress and events.