2017/11/21 - AWS CloudFormation - 1 new 11 updated api methods
Changes 1) Instance-level parameter overrides (CloudFormation-StackSet feature): This feature will allow the customers to override the template parameters on specific stackInstances. Customers will also have ability to update their existing instances with/without parameter-overrides using a new API "UpdateStackInstances" 2) Add support for SSM parameters in CloudFormation - This feature will allow the customers to use Systems Manager parameters in CloudFormation templates. They will be able to see values for these parameters in Describe APIs.
Updates the parameter values for stack instances for the specified accounts, within the specified regions. A stack instance refers to a stack in a specific account and region.
You can only update stack instances in regions and accounts where they already exist; to create additional stack instances, use CreateStackInstances .
During stack set updates, any parameters overridden for a stack instance are not updated, but retain their overridden value.
You can only update the parameter values that are specified in the stack set; to add or delete a parameter itself, use UpdateStackSet to update the stack set template. If you add a parameter to a template, before you can override the parameter value specified in the stack set you must first use UpdateStackSet to update all stack instances with the updated template and parameter value specified in the stack set. Once a stack instance has been updated with the new parameter, you can then override the parameter value using UpdateStackInstances .
See also: AWS API Documentation
Request Syntax
client.update_stack_instances(
StackSetName='string',
Accounts=[
'string',
],
Regions=[
'string',
],
ParameterOverrides=[
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
OperationPreferences={
'RegionOrder': [
'string',
],
'FailureToleranceCount': 123,
'FailureTolerancePercentage': 123,
'MaxConcurrentCount': 123,
'MaxConcurrentPercentage': 123
},
OperationId='string'
)
string
[REQUIRED]
The name or unique ID of the stack set associated with the stack instances.
list
[REQUIRED]
The names of one or more AWS accounts for which you want to update parameter values for stack instances. The overridden parameter values will be applied to all stack instances in the specified accounts and regions.
(string) --
list
[REQUIRED]
The names of one or more regions in which you want to update parameter values for stack instances. The overridden parameter values will be applied to all stack instances in the specified accounts and regions.
(string) --
list
A list of input parameters whose values you want to update for the specified stack instances.
Any overridden parameter values will be applied to all stack instances in the specified accounts and regions. When specifying parameters and their values, be aware of how AWS CloudFormation sets parameter values during stack instance update operations:
To override the current value for a parameter, include the parameter and specify its value.
To leave a parameter set to its present value, you can do one of the following:
Do not include the parameter in the list.
Include the parameter and specify UsePreviousValue as true . (You cannot specify both a value and set UsePreviousValue to true .)
To set all overridden parameter back to the values specified in the stack set, specify a parameter list but do not include any parameters.
To leave all parameters set to their present values, do not specify this property at all.
During stack set updates, any parameter values overridden for a stack instance are not updated, but retain their overridden value.
You can only override the parameter values that are specified in the stack set; to add or delete a parameter itself, use UpdateStackSet to update the stack set template. If you add a parameter to a template, before you can override the parameter value specified in the stack set you must first use UpdateStackSet to update all stack instances with the updated template and parameter value specified in the stack set. Once a stack instance has been updated with the new parameter, you can then override the parameter value using UpdateStackInstances .
(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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
dict
Preferences for how AWS CloudFormation performs this stack set operation.
RegionOrder (list) --
The order of the regions in where you want to perform the stack operation.
(string) --
FailureToleranceCount (integer) --
The number of accounts, per region, for which this operation can fail before AWS CloudFormation stops the operation in that region. If the operation is stopped in a region, AWS CloudFormation doesn't attempt the operation in any subsequent regions.
Conditional: You must specify either FailureToleranceCount or FailureTolerancePercentage (but not both).
FailureTolerancePercentage (integer) --
The percentage of accounts, per region, for which this stack operation can fail before AWS CloudFormation stops the operation in that region. If the operation is stopped in a region, AWS CloudFormation doesn't attempt the operation in any subsequent regions.
When calculating the number of accounts based on the specified percentage, AWS CloudFormation rounds down to the next whole number.
Conditional: You must specify either FailureToleranceCount or FailureTolerancePercentage , but not both.
MaxConcurrentCount (integer) --
The maximum number of accounts in which to perform this operation at one time. This is dependent on the value of FailureToleranceCount —MaxConcurrentCount is at most one more than the FailureToleranceCount .
Note that this setting lets you specify the maximum for operations. For large deployments, under certain circumstances the actual number of accounts acted upon concurrently may be lower due to service throttling.
Conditional: You must specify either MaxConcurrentCount or MaxConcurrentPercentage , but not both.
MaxConcurrentPercentage (integer) --
The maximum percentage of accounts in which to perform this operation at one time.
When calculating the number of accounts based on the specified percentage, AWS CloudFormation rounds down to the next whole number. This is true except in cases where rounding down would result is zero. In this case, CloudFormation sets the number as one instead.
Note that this setting lets you specify the maximum for operations. For large deployments, under certain circumstances the actual number of accounts acted upon concurrently may be lower due to service throttling.
Conditional: You must specify either MaxConcurrentCount or MaxConcurrentPercentage , but not both.
string
The unique identifier for this stack set operation.
The operation ID also functions as an idempotency token, to ensure that AWS CloudFormation performs the stack set operation only once, even if you retry the request multiple times. You might retry stack set operation requests to ensure that AWS CloudFormation successfully received them.
If you don't specify an operation ID, the SDK generates one automatically.
This field is autopopulated if not provided.
dict
Response Syntax
{
'OperationId': 'string'
}
Response Structure
(dict) --
OperationId (string) --
The unique identifier for this stack set operation.
{'Parameters': {'ResolvedValue': 'string'}}
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 AWS CloudFormation will create. If you create a change set for an existing stack, AWS 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 AWS 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. After the CreateChangeSet call successfully completes, AWS 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. AWS CloudFormation doesn't make changes until you execute the change set.
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',
],
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'
)
string
[REQUIRED]
The name or the unique ID of the stack for which you are creating a change set. AWS 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. AWS CloudFormation generates the change set by comparing this template with the template of the stack that you specified.
Conditional: You must specify only TemplateBody or TemplateURL .
string
The location of the file that contains the revised template. The URL must point to a template (max size: 460,800 bytes) that is located in an S3 bucket. AWS CloudFormation generates the change set by comparing this template with the stack that you specified.
Conditional: You must specify only TemplateBody or TemplateURL .
boolean
Whether to reuse the template that is associated with the stack to create the change set.
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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
list
A list of values that you must specify before AWS CloudFormation can update certain stacks. Some stack templates might include resources that can affect permissions in your AWS account, for example, by creating new AWS Identity and Access Management (IAM) users. For those stacks, you must explicitly acknowledge their capabilities by specifying this parameter.
The only valid values are CAPABILITY_IAM and CAPABILITY_NAMED_IAM . The following resources require you to specify this parameter: AWS::IAM::AccessKey , AWS::IAM::Group , AWS::IAM::InstanceProfile , AWS::IAM::Policy , AWS::IAM::Role , AWS::IAM::User , and AWS::IAM::UserToGroupAddition . If your stack template contains these resources, we recommend that you review all permissions associated with them and edit their permissions if necessary.
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 this parameter, this action returns an InsufficientCapabilities error.
For more information, see Acknowledging IAM Resources in AWS CloudFormation Templates .
(string) --
list
The template resource types that you have permissions to work with if you execute this change set, such as AWS::EC2::Instance , AWS::EC2::* , 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, AWS CloudFormation grants permissions to all resource types. AWS Identity and Access Management (IAM) uses this parameter for condition keys in IAM policies for AWS CloudFormation. For more information, see Controlling Access with AWS Identity and Access Management in the AWS CloudFormation User Guide.
(string) --
string
The Amazon Resource Name (ARN) of an AWS Identity and Access Management (IAM) role that AWS CloudFormation assumes when executing the change set. AWS CloudFormation uses the role's credentials to make calls on your behalf. AWS CloudFormation uses this role for all future operations on the stack. As long as users have permission to operate on the stack, AWS 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, AWS CloudFormation uses the role that was previously associated with the stack. If no role is available, AWS CloudFormation uses a temporary session that is generated from your user credentials.
dict
The rollback triggers for AWS 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, AWS 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:
If you don't specify this parameter, AWS CloudFormation uses the rollback triggers previously specified for this stack, if any.
If you specify any rollback triggers using this parameter, you must specify all the triggers that you want used for this stack, even triggers you've specifed 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.
If you specify an empty list, AWS CloudFormation removes all currently specified triggers.
If a specified Cloudwatch alarm is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger AWS CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALERT 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.
Type (string) -- [REQUIRED]
The resource type of the rollback trigger. Currently, AWS::CloudWatch::Alarm is the only supported resource type.
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. If any of the alarms goes to ALERT state during the stack operation or this monitoring period, CloudFormation rolls back the entire stack operation. Then, for update operations, if the monitoring period expires without any alarms going to ALERT state CloudFormation proceeds to dispose of old resources as usual.
If you specify a monitoring period but do not specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources for 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 Simple Notification Service (Amazon SNS) topics that AWS 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. AWS 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 AWS CloudFormation stack.
Key (string) -- [REQUIRED]
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 (AWS) have the reserved prefix: aws: .
Value (string) -- [REQUIRED]
Required . A string containing 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 alphabetic character and cannot exceed 128 characters.
string
A unique identifier for this CreateChangeSet request. Specify this token if you plan to retry requests so that AWS CloudFormation knows that you're not attempting to create another change set with the same name. You might retry CreateChangeSet requests to ensure that AWS 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 .
If you create a change set for a new stack, AWS Cloudformation creates a stack with a unique stack ID, but no template or resources. The stack will be in the ` REVIEW_IN_PROGRESS http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-describing-stacks.html#d0e11995`__ state until you execute the change set.
By default, AWS 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.
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.
{'Parameters': {'ResolvedValue': 'string'}}
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 via the DescribeStacks API.
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',
],
ResourceTypes=[
'string',
],
RoleARN='string',
OnFailure='DO_NOTHING'|'ROLLBACK'|'DELETE',
StackPolicyBody='string',
StackPolicyURL='string',
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
ClientRequestToken='string',
EnableTerminationProtection=True|False
)
string
[REQUIRED]
The name that is associated with the stack. The name must be unique in the region in which you are creating the stack.
Note
A stack name can contain only alphanumeric characters (case sensitive) and hyphens. It must start with an alphabetic character and cannot be longer than 128 characters.
string
Structure containing the template body with a minimum length of 1 byte and a maximum length of 51,200 bytes. For more information, go to Template Anatomy in the AWS CloudFormation User Guide.
Conditional: You must specify either the TemplateBody or the TemplateURL parameter, but not both.
string
Location of file containing the template body. The URL must point to a template (max size: 460,800 bytes) that is located in an Amazon S3 bucket. For more information, go to the Template Anatomy in the AWS CloudFormation User Guide.
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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
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 AWS 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, AWS 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:
If you don't specify this parameter, AWS CloudFormation uses the rollback triggers previously specified for this stack, if any.
If you specify any rollback triggers using this parameter, you must specify all the triggers that you want used for this stack, even triggers you've specifed 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.
If you specify an empty list, AWS CloudFormation removes all currently specified triggers.
If a specified Cloudwatch alarm is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger AWS CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALERT 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.
Type (string) -- [REQUIRED]
The resource type of the rollback trigger. Currently, AWS::CloudWatch::Alarm is the only supported resource type.
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. If any of the alarms goes to ALERT state during the stack operation or this monitoring period, CloudFormation rolls back the entire stack operation. Then, for update operations, if the monitoring period expires without any alarms going to ALERT state CloudFormation proceeds to dispose of old resources as usual.
If you specify a monitoring period but do not specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources for 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 Simple Notification Service (SNS) topic ARNs to publish stack related events. You can find your SNS topic ARNs using the SNS console or your Command Line Interface (CLI).
(string) --
list
A list of values that you must specify before AWS CloudFormation can create certain stacks. Some stack templates might include resources that can affect permissions in your AWS account, for example, by creating new AWS Identity and Access Management (IAM) users. For those stacks, you must explicitly acknowledge their capabilities by specifying this parameter.
The only valid values are CAPABILITY_IAM and CAPABILITY_NAMED_IAM . The following resources require you to specify this parameter: AWS::IAM::AccessKey , AWS::IAM::Group , AWS::IAM::InstanceProfile , AWS::IAM::Policy , AWS::IAM::Role , AWS::IAM::User , and AWS::IAM::UserToGroupAddition . If your stack template contains these resources, we recommend that you review all permissions associated with them and edit their permissions if necessary.
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 this parameter, this action returns an InsufficientCapabilities error.
For more information, see Acknowledging IAM Resources in AWS CloudFormation Templates .
(string) --
list
The template resource types that you have permissions to work with for this create stack action, such as AWS::EC2::Instance , AWS::EC2::* , or Custom::MyCustomInstance . Use the following syntax to describe template resource types: AWS::* (for all AWS resource), Custom::* (for all custom resources), Custom::*logical_ID* `` (for a specific custom resource), ``AWS::*service_name* ::* (for all resources of a particular AWS service), and ``AWS::service_name ::resource_logical_ID `` (for a specific AWS resource).
If the list of resource types doesn't include a resource that you're creating, the stack creation fails. By default, AWS CloudFormation grants permissions to all resource types. AWS Identity and Access Management (IAM) uses this parameter for AWS CloudFormation-specific condition keys in IAM policies. For more information, see Controlling Access with AWS Identity and Access Management .
(string) --
string
The Amazon Resource Name (ARN) of an AWS Identity and Access Management (IAM) role that AWS CloudFormation assumes to create the stack. AWS CloudFormation uses the role's credentials to make calls on your behalf. AWS CloudFormation always uses this role for all future operations on the stack. As long as users have permission to operate on the stack, AWS 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, AWS CloudFormation uses the role that was previously associated with the stack. If no role is available, AWS CloudFormation uses a temporary session that is 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 containing the stack policy body. For more information, go to Prevent Updates to Stack Resources in the AWS CloudFormation User Guide . You can specify either the StackPolicyBody or the StackPolicyURL parameter, but not both.
string
Location of a file containing 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. You can specify either the StackPolicyBody or the StackPolicyURL parameter, but not both.
list
Key-value pairs to associate with this stack. AWS 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 AWS CloudFormation stack.
Key (string) -- [REQUIRED]
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 (AWS) have the reserved prefix: aws: .
Value (string) -- [REQUIRED]
Required . A string containing 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 AWS CloudFormation knows that you're not attempting to create a stack with the same name. You might retry CreateStack requests to ensure that AWS 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
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 Protecting a Stack From Being Deleted in the AWS CloudFormation User Guide . Termination protection is disabled on stacks by default.
For nested stacks , termination protection is set on the root stack and cannot be changed directly on the nested stack.
dict
Response Syntax
{
'StackId': 'string'
}
Response Structure
(dict) --
The output for a CreateStack action.
StackId (string) --
Unique identifier of the stack.
{'ParameterOverrides': [{'ParameterKey': 'string',
'ParameterValue': 'string',
'ResolvedValue': 'string',
'UsePreviousValue': 'boolean'}]}
Creates stack instances for the specified accounts, within the specified regions. A stack instance refers to a stack in a specific account and region. Accounts and Regions are required parameters—you must specify at least one account and one region.
See also: AWS API Documentation
Request Syntax
client.create_stack_instances(
StackSetName='string',
Accounts=[
'string',
],
Regions=[
'string',
],
ParameterOverrides=[
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
OperationPreferences={
'RegionOrder': [
'string',
],
'FailureToleranceCount': 123,
'FailureTolerancePercentage': 123,
'MaxConcurrentCount': 123,
'MaxConcurrentPercentage': 123
},
OperationId='string'
)
string
[REQUIRED]
The name or unique ID of the stack set that you want to create stack instances from.
list
[REQUIRED]
The names of one or more AWS accounts that you want to create stack instances in the specified region(s) for.
(string) --
list
[REQUIRED]
The names of one or more regions where you want to create stack instances using the specified AWS account(s).
(string) --
list
A list of stack set parameters whose values you want to override in the selected stack instances.
Any overridden parameter values will be applied to all stack instances in the specified accounts and regions. When specifying parameters and their values, be aware of how AWS CloudFormation sets parameter values during stack instance operations:
To override the current value for a parameter, include the parameter and specify its value.
To leave a parameter set to its present value, you can do one of the following:
Do not include the parameter in the list.
Include the parameter and specify UsePreviousValue as true . (You cannot specify both a value and set UsePreviousValue to true .)
To set all overridden parameter back to the values specified in the stack set, specify a parameter list but do not include any parameters.
To leave all parameters set to their present values, do not specify this property at all.
During stack set updates, any parameter values overridden for a stack instance are not updated, but retain their overridden value.
You can only override the parameter values that are specified in the stack set; to add or delete a parameter itself, use UpdateStackSet to update the stack set template.
(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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
dict
Preferences for how AWS CloudFormation performs this stack set operation.
RegionOrder (list) --
The order of the regions in where you want to perform the stack operation.
(string) --
FailureToleranceCount (integer) --
The number of accounts, per region, for which this operation can fail before AWS CloudFormation stops the operation in that region. If the operation is stopped in a region, AWS CloudFormation doesn't attempt the operation in any subsequent regions.
Conditional: You must specify either FailureToleranceCount or FailureTolerancePercentage (but not both).
FailureTolerancePercentage (integer) --
The percentage of accounts, per region, for which this stack operation can fail before AWS CloudFormation stops the operation in that region. If the operation is stopped in a region, AWS CloudFormation doesn't attempt the operation in any subsequent regions.
When calculating the number of accounts based on the specified percentage, AWS CloudFormation rounds down to the next whole number.
Conditional: You must specify either FailureToleranceCount or FailureTolerancePercentage , but not both.
MaxConcurrentCount (integer) --
The maximum number of accounts in which to perform this operation at one time. This is dependent on the value of FailureToleranceCount —MaxConcurrentCount is at most one more than the FailureToleranceCount .
Note that this setting lets you specify the maximum for operations. For large deployments, under certain circumstances the actual number of accounts acted upon concurrently may be lower due to service throttling.
Conditional: You must specify either MaxConcurrentCount or MaxConcurrentPercentage , but not both.
MaxConcurrentPercentage (integer) --
The maximum percentage of accounts in which to perform this operation at one time.
When calculating the number of accounts based on the specified percentage, AWS CloudFormation rounds down to the next whole number. This is true except in cases where rounding down would result is zero. In this case, CloudFormation sets the number as one instead.
Note that this setting lets you specify the maximum for operations. For large deployments, under certain circumstances the actual number of accounts acted upon concurrently may be lower due to service throttling.
Conditional: You must specify either MaxConcurrentCount or MaxConcurrentPercentage , but not both.
string
The unique identifier for this stack set operation.
The operation ID also functions as an idempotency token, to ensure that AWS CloudFormation performs the stack set operation only once, even if you retry the request multiple times. You might retry stack set operation requests to ensure that AWS CloudFormation successfully received them.
If you don't specify an operation ID, the SDK generates one automatically.
Repeating this stack set operation with a new operation ID retries all stack instances whose status is OUTDATED .
This field is autopopulated if not provided.
dict
Response Syntax
{
'OperationId': 'string'
}
Response Structure
(dict) --
OperationId (string) --
The unique identifier for this stack set operation.
{'Parameters': {'ResolvedValue': 'string'}}
Creates a stack set.
See also: AWS API Documentation
Request Syntax
client.create_stack_set(
StackSetName='string',
Description='string',
TemplateBody='string',
TemplateURL='string',
Parameters=[
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
Capabilities=[
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM',
],
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
ClientRequestToken='string'
)
string
[REQUIRED]
The name to associate with the stack set. The name must be unique in the region where you create your stack set.
Note
A stack name can contain only alphanumeric characters (case-sensitive) and hyphens. It must start with an alphabetic character and can't be longer than 128 characters.
string
A description of the stack set. You can use the description to identify the stack set's purpose or other important information.
string
The structure that contains the template body, with a minimum length of 1 byte and a maximum length of 51,200 bytes. For more information, see Template Anatomy in the AWS CloudFormation User Guide.
Conditional: You must specify either the TemplateBody or the TemplateURL parameter, but not both.
string
The location of the file that contains the template body. The URL must point to a template (maximum size: 460,800 bytes) that's located in an Amazon S3 bucket. For more information, see Template Anatomy in the AWS CloudFormation User Guide.
Conditional: You must specify either the TemplateBody or the TemplateURL parameter, but not both.
list
The input parameters for the stack set template.
(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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
list
A list of values that you must specify before AWS CloudFormation can create certain stack sets. Some stack set templates might include resources that can affect permissions in your AWS account—for example, by creating new AWS Identity and Access Management (IAM) users. For those stack sets, you must explicitly acknowledge their capabilities by specifying this parameter.
The only valid values are CAPABILITY_IAM and CAPABILITY_NAMED_IAM. The following resources require you to specify this parameter:
AWS::IAM::AccessKey
AWS::IAM::Group
AWS::IAM::InstanceProfile
AWS::IAM::Policy
AWS::IAM::Role
AWS::IAM::User
AWS::IAM::UserToGroupAddition
If your stack template contains these resources, we recommend that you review all permissions that are associated with them and edit their permissions if necessary.
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 this parameter, this action returns an InsufficientCapabilities error.
For more information, see Acknowledging IAM Resources in AWS CloudFormation Templates.
(string) --
list
The key-value pairs to associate with this stack set and the stacks created from it. AWS CloudFormation also propagates these tags to supported resources that are created in the stacks. A maximum number of 50 tags can be specified.
If you specify tags as part of a CreateStackSet action, AWS CloudFormation checks to see if you have the required IAM permission to tag resources. If you don't, the entire CreateStackSet action fails with an access denied error, and the stack set is not created.
(dict) --
The Tag type enables you to specify a key-value pair that can be used to store information about an AWS CloudFormation stack.
Key (string) -- [REQUIRED]
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 (AWS) have the reserved prefix: aws: .
Value (string) -- [REQUIRED]
Required . A string containing the value for this tag. You can specify a maximum of 256 characters for a tag value.
string
A unique identifier for this CreateStackSet request. Specify this token if you plan to retry requests so that AWS CloudFormation knows that you're not attempting to create another stack set with the same name. You might retry CreateStackSet requests to ensure that AWS CloudFormation successfully received them.
If you don't specify an operation ID, the SDK generates one automatically.
This field is autopopulated if not provided.
dict
Response Syntax
{
'StackSetId': 'string'
}
Response Structure
(dict) --
StackSetId (string) --
The ID of the stack set that you're creating.
{'Parameters': {'ResolvedValue': 'string'}}
Returns the inputs for the change set and a list of changes that AWS CloudFormation will make if you execute the change set. For more information, see Updating Stacks Using Change Sets in the AWS CloudFormation User Guide.
See also: AWS API Documentation
Request Syntax
client.describe_change_set(
ChangeSetName='string',
StackName='string',
NextToken='string'
)
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
A string (provided by the DescribeChangeSet response output) that identifies the next page of information that you want to retrieve.
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_COMPLETE'|'FAILED',
'StatusReason': 'string',
'NotificationARNs': [
'string',
],
'RollbackConfiguration': {
'RollbackTriggers': [
{
'Arn': 'string',
'Type': 'string'
},
],
'MonitoringTimeInMinutes': 123
},
'Capabilities': [
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM',
],
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'Changes': [
{
'Type': 'Resource',
'ResourceChange': {
'Action': 'Add'|'Modify'|'Remove',
'LogicalResourceId': 'string',
'PhysicalResourceId': 'string',
'ResourceType': 'string',
'Replacement': 'True'|'False'|'Conditional',
'Scope': [
'Properties'|'Metadata'|'CreationPolicy'|'UpdatePolicy'|'DeletionPolicy'|'Tags',
],
'Details': [
{
'Target': {
'Attribute': 'Properties'|'Metadata'|'CreationPolicy'|'UpdatePolicy'|'DeletionPolicy'|'Tags',
'Name': 'string',
'RequiresRecreation': 'Never'|'Conditionally'|'Always'
},
'Evaluation': 'Static'|'Dynamic',
'ChangeSource': 'ResourceReference'|'ParameterReference'|'ResourceAttribute'|'DirectModification'|'Automatic',
'CausingEntity': 'string'
},
]
}
},
],
'NextToken': 'string'
}
Response Structure
(dict) --
The output for the DescribeChangeSet action.
ChangeSetName (string) --
The name of the change set.
ChangeSetId (string) --
The ARN of the change set.
StackId (string) --
The ARN of the stack that is associated with the change set.
StackName (string) --
The name of the stack that is 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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
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 AWS 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_IN_PROGRESS , 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, AWS CloudFormation shows the error message.
NotificationARNs (list) --
The ARNs of the Amazon Simple Notification Service (Amazon SNS) topics that will be associated with the stack if you execute the change set.
(string) --
RollbackConfiguration (dict) --
The rollback triggers for AWS 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, AWS 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:
If you don't specify this parameter, AWS CloudFormation uses the rollback triggers previously specified for this stack, if any.
If you specify any rollback triggers using this parameter, you must specify all the triggers that you want used for this stack, even triggers you've specifed 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.
If you specify an empty list, AWS CloudFormation removes all currently specified triggers.
If a specified Cloudwatch alarm is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger AWS CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALERT 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.
Type (string) --
The resource type of the rollback trigger. Currently, AWS::CloudWatch::Alarm is the only supported resource type.
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. If any of the alarms goes to ALERT state during the stack operation or this monitoring period, CloudFormation rolls back the entire stack operation. Then, for update operations, if the monitoring period expires without any alarms going to ALERT state CloudFormation proceeds to dispose of old resources as usual.
If you specify a monitoring period but do not specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources for 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 AWS 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 (AWS) have the reserved prefix: aws: .
Value (string) --
Required . A string containing 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 AWS CloudFormation changes if you execute the change set.
(dict) --
The Change structure describes the changes AWS CloudFormation will perform if you execute the change set.
Type (string) --
The type of entity that AWS CloudFormation changes. Currently, the only entity type is Resource .
ResourceChange (dict) --
A ResourceChange structure that describes the resource and action that AWS CloudFormation will perform.
Action (string) --
The action that AWS CloudFormation takes on the resource, such as Add (adds a new resource), Modify (changes a resource), or Remove (deletes a resource).
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 AWS CloudFormation resource, such as AWS::S3::Bucket .
Replacement (string) --
For the Modify action, indicates whether AWS 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 Conditionally .
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 Conditionally , 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) --
Details (list) --
For the Modify action, a list of ResourceChangeDetail structures that describes the changes that AWS CloudFormation will make to the resource.
(dict) --
For a resource with Modify as the action, the ResourceChange structure describes the changes AWS CloudFormation will make to that resource.
Target (dict) --
A ResourceTargetDefinition structure that describes the field that AWS 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 AWS CloudFormation User Guide.
Evaluation (string) --
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.
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.
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, 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.
CausingEntity (string) --
The identity of the entity that triggered this change. This entity is a member of the group that is 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 .
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.
{'StackInstance': {'ParameterOverrides': [{'ParameterKey': 'string',
'ParameterValue': 'string',
'ResolvedValue': 'string',
'UsePreviousValue': 'boolean'}]}}
Returns the stack instance that's associated with the specified stack set, AWS account, and region.
For a list of stack instances that are associated with a specific stack set, use ListStackInstances .
See also: AWS API Documentation
Request Syntax
client.describe_stack_instance(
StackSetName='string',
StackInstanceAccount='string',
StackInstanceRegion='string'
)
string
[REQUIRED]
The name or the unique stack ID of the stack set that you want to get stack instance information for.
string
[REQUIRED]
The ID of an AWS account that's associated with this stack instance.
string
[REQUIRED]
The name of a region that's associated with this stack instance.
dict
Response Syntax
{
'StackInstance': {
'StackSetId': 'string',
'Region': 'string',
'Account': 'string',
'StackId': 'string',
'ParameterOverrides': [
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
'Status': 'CURRENT'|'OUTDATED'|'INOPERABLE',
'StatusReason': 'string'
}
}
Response Structure
(dict) --
StackInstance (dict) --
The stack instance that matches the specified request parameters.
StackSetId (string) --
The name or unique ID of the stack set that the stack instance is associated with.
Region (string) --
The name of the AWS region that the stack instance is associated with.
Account (string) --
The name of the AWS account that the stack instance is associated with.
StackId (string) --
The ID of the stack instance.
ParameterOverrides (list) --
A list of parameters from the stack set template whose values have been overridden in this stack instance.
(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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
Status (string) --
The status of the stack instance, in terms of its synchronization with its associated stack set.
INOPERABLE : A DeleteStackInstances operation has failed and left the stack in an unstable state. Stacks in this state are excluded from further UpdateStackSet operations. You might need to perform a DeleteStackInstances operation, with RetainStacks set to true , to delete the stack instance, and then delete the stack manually.
OUTDATED : The stack isn't currently up to date with the stack set because:
The associated stack failed during a CreateStackSet or UpdateStackSet operation.
The stack was part of a CreateStackSet or UpdateStackSet operation that failed or was stopped before the stack was created or updated.
CURRENT : The stack is currently up to date with the stack set.
StatusReason (string) --
The explanation for the specific status code that is assigned to this stack instance.
{'StackSet': {'Parameters': {'ResolvedValue': 'string'}}}
Returns the description of the specified stack set.
See also: AWS API Documentation
Request Syntax
client.describe_stack_set(
StackSetName='string'
)
string
[REQUIRED]
The name or unique ID of the stack set whose description you want.
dict
Response Syntax
{
'StackSet': {
'StackSetName': 'string',
'StackSetId': 'string',
'Description': 'string',
'Status': 'ACTIVE'|'DELETED',
'TemplateBody': 'string',
'Parameters': [
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
'Capabilities': [
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM',
],
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
]
}
}
Response Structure
(dict) --
StackSet (dict) --
The specified stack set.
StackSetName (string) --
The name that's associated with the stack set.
StackSetId (string) --
The ID of the stack set.
Description (string) --
A description of the stack set that you specify when the stack set is created or updated.
Status (string) --
The status of the stack set.
TemplateBody (string) --
The structure that contains the body of the template that was used to create or update the stack set.
Parameters (list) --
A list of input parameters for a stack set.
(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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
Capabilities (list) --
The capabilities that are allowed in the stack set. Some stack set templates might include resources that can affect permissions in your AWS account—for example, by creating new AWS Identity and Access Management (IAM) users. For more information, see Acknowledging IAM Resources in AWS CloudFormation Templates.
(string) --
Tags (list) --
A list of tags that specify information about the stack set. 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 AWS 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 (AWS) have the reserved prefix: aws: .
Value (string) --
Required . A string containing the value for this tag. You can specify a maximum of 256 characters for a tag value.
{'Stacks': {'Parameters': {'ResolvedValue': 'string'}}}
Returns the description for the specified stack; if no stack name was specified, then it returns the description for all the stacks created.
Note
If the stack does not exist, an AmazonCloudFormationException is returned.
See also: AWS API Documentation
Request Syntax
client.describe_stacks(
StackName='string',
NextToken='string'
)
string
The name or the unique stack ID that is associated with the stack, which are not 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.
Default: There is no default value.
string
A string that identifies the next page of stacks that you want to retrieve.
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_ROLLBACK_IN_PROGRESS'|'UPDATE_ROLLBACK_FAILED'|'UPDATE_ROLLBACK_COMPLETE_CLEANUP_IN_PROGRESS'|'UPDATE_ROLLBACK_COMPLETE'|'REVIEW_IN_PROGRESS',
'StackStatusReason': 'string',
'DisableRollback': True|False,
'NotificationARNs': [
'string',
],
'TimeoutInMinutes': 123,
'Capabilities': [
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM',
],
'Outputs': [
{
'OutputKey': 'string',
'OutputValue': 'string',
'Description': 'string',
'ExportName': 'string'
},
],
'RoleARN': 'string',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'EnableTerminationProtection': True|False,
'ParentId': 'string',
'RootId': '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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
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 AWS 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, AWS 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:
If you don't specify this parameter, AWS CloudFormation uses the rollback triggers previously specified for this stack, if any.
If you specify any rollback triggers using this parameter, you must specify all the triggers that you want used for this stack, even triggers you've specifed 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.
If you specify an empty list, AWS CloudFormation removes all currently specified triggers.
If a specified Cloudwatch alarm is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger AWS CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALERT 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.
Type (string) --
The resource type of the rollback trigger. Currently, AWS::CloudWatch::Alarm is the only supported resource type.
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. If any of the alarms goes to ALERT state during the stack operation or this monitoring period, CloudFormation rolls back the entire stack operation. Then, for update operations, if the monitoring period expires without any alarms going to ALERT state CloudFormation proceeds to dispose of old resources as usual.
If you specify a monitoring period but do not specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources for 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
NotificationARNs (list) --
SNS topic 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 AWS Identity and Access Management (IAM) role that is associated with the stack. During a stack operation, AWS 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 AWS 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 (AWS) have the reserved prefix: aws: .
Value (string) --
Required . A string containing 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 cannot be changed directly on the nested stack. For more information, see Protecting a Stack From Being Deleted in the AWS CloudFormation User Guide .
ParentId (string) --
For nested stacks--stacks created as resources for another stack--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 Working with Nested Stacks in the AWS CloudFormation User Guide .
RootId (string) --
For nested stacks--stacks created as resources for another stack--the stack ID of the the top-level stack to which the nested stack ultimately belongs.
For more information, see Working with Nested Stacks in the AWS CloudFormation User Guide .
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.
{'Parameters': {'ResolvedValue': 'string'}}
Returns the estimated monthly cost of a template. The return value is an AWS Simple Monthly Calculator URL with a query string that describes the resources required to run the template.
See also: AWS API Documentation
Request Syntax
client.estimate_template_cost(
TemplateBody='string',
TemplateURL='string',
Parameters=[
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
]
)
string
Structure containing the template body with a minimum length of 1 byte and a maximum length of 51,200 bytes. (For more information, go to Template Anatomy in the AWS CloudFormation User Guide.)
Conditional: You must pass TemplateBody or TemplateURL . If both are passed, only TemplateBody is used.
string
Location of file containing the template body. The URL must point to a template that is located in an Amazon S3 bucket. For more information, go to Template Anatomy in the AWS CloudFormation User Guide.
Conditional: You must pass TemplateURL or TemplateBody . If both are passed, only TemplateBody is used.
list
A list of Parameter structures that specify input parameters.
(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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
dict
Response Syntax
{
'Url': 'string'
}
Response Structure
(dict) --
The output for a EstimateTemplateCost action.
Url (string) --
An AWS Simple Monthly Calculator URL with a query string that describes the resources required to run the template.
{'Parameters': {'ResolvedValue': 'string'}}
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 via the DescribeStacks action.
To get a copy of the template for an existing stack, you can use the GetTemplate action.
For more information about creating an update template, updating a stack, and monitoring the progress of the update, see Updating a Stack .
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',
],
ResourceTypes=[
'string',
],
RoleARN='string',
RollbackConfiguration={
'RollbackTriggers': [
{
'Arn': 'string',
'Type': 'string'
},
],
'MonitoringTimeInMinutes': 123
},
StackPolicyBody='string',
StackPolicyURL='string',
NotificationARNs=[
'string',
],
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
ClientRequestToken='string'
)
string
[REQUIRED]
The name or unique stack ID of the stack to update.
string
Structure containing the template body with a minimum length of 1 byte and a maximum length of 51,200 bytes. (For more information, go to Template Anatomy in the AWS CloudFormation User Guide.)
Conditional: You must specify only one of the following parameters: TemplateBody , TemplateURL , or set the UsePreviousTemplate to true .
string
Location of file containing the template body. The URL must point to a template that is located in an Amazon S3 bucket. For more information, go to Template Anatomy in the AWS CloudFormation User Guide.
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.
Conditional: You must specify only one of the following parameters: TemplateBody , TemplateURL , or set the UsePreviousTemplate to true .
string
Structure containing 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 do not specify a stack policy, the current policy that is associated with the stack will be used.
string
Location of a file containing 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. 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 do not 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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
list
A list of values that you must specify before AWS CloudFormation can update certain stacks. Some stack templates might include resources that can affect permissions in your AWS account, for example, by creating new AWS Identity and Access Management (IAM) users. For those stacks, you must explicitly acknowledge their capabilities by specifying this parameter.
The only valid values are CAPABILITY_IAM and CAPABILITY_NAMED_IAM . The following resources require you to specify this parameter: AWS::IAM::AccessKey , AWS::IAM::Group , AWS::IAM::InstanceProfile , AWS::IAM::Policy , AWS::IAM::Role , AWS::IAM::User , and AWS::IAM::UserToGroupAddition . If your stack template contains these resources, we recommend that you review all permissions associated with them and edit their permissions if necessary.
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 this parameter, this action returns an InsufficientCapabilities error.
For more information, see Acknowledging IAM Resources in AWS CloudFormation Templates .
(string) --
list
The template resource types that you have permissions to work with for this update stack action, such as AWS::EC2::Instance , AWS::EC2::* , or Custom::MyCustomInstance .
If the list of resource types doesn't include a resource that you're updating, the stack update fails. By default, AWS CloudFormation grants permissions to all resource types. AWS Identity and Access Management (IAM) uses this parameter for AWS CloudFormation-specific condition keys in IAM policies. For more information, see Controlling Access with AWS Identity and Access Management .
(string) --
string
The Amazon Resource Name (ARN) of an AWS Identity and Access Management (IAM) role that AWS CloudFormation assumes to update the stack. AWS CloudFormation uses the role's credentials to make calls on your behalf. AWS CloudFormation always uses this role for all future operations on the stack. As long as users have permission to operate on the stack, AWS 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, AWS CloudFormation uses the role that was previously associated with the stack. If no role is available, AWS CloudFormation uses a temporary session that is generated from your user credentials.
dict
The rollback triggers for AWS 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, AWS 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:
If you don't specify this parameter, AWS CloudFormation uses the rollback triggers previously specified for this stack, if any.
If you specify any rollback triggers using this parameter, you must specify all the triggers that you want used for this stack, even triggers you've specifed 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.
If you specify an empty list, AWS CloudFormation removes all currently specified triggers.
If a specified Cloudwatch alarm is missing, the entire stack operation fails and is rolled back.
(dict) --
A rollback trigger AWS CloudFormation monitors during creation and updating of stacks. If any of the alarms you specify goes to ALERT 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.
Type (string) -- [REQUIRED]
The resource type of the rollback trigger. Currently, AWS::CloudWatch::Alarm is the only supported resource type.
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. If any of the alarms goes to ALERT state during the stack operation or this monitoring period, CloudFormation rolls back the entire stack operation. Then, for update operations, if the monitoring period expires without any alarms going to ALERT state CloudFormation proceeds to dispose of old resources as usual.
If you specify a monitoring period but do not specify any rollback triggers, CloudFormation still waits the specified period of time before cleaning up old resources for 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 containing 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 do not specify a stack policy, the current policy that is associated with the stack is unchanged.
string
Location of a file containing 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. 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 do not 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 AWS CloudFormation associates with the stack. Specify an empty list to remove all notification topics.
(string) --
list
Key-value pairs to associate with this stack. AWS 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, AWS CloudFormation doesn't modify the stack's tags. If you specify an empty value, AWS 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 AWS CloudFormation stack.
Key (string) -- [REQUIRED]
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 (AWS) have the reserved prefix: aws: .
Value (string) -- [REQUIRED]
Required . A string containing the value for this tag. You can specify a maximum of 256 characters for a tag value.
string
A unique identifier for this UpdateStack request. Specify this token if you plan to retry requests so that AWS CloudFormation knows that you're not attempting to update a stack with the same name. You might retry UpdateStack requests to ensure that AWS 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 .
dict
Response Syntax
{
'StackId': 'string'
}
Response Structure
(dict) --
The output for an UpdateStack action.
StackId (string) --
Unique identifier of the stack.
{'Parameters': {'ResolvedValue': 'string'}}
Updates the stack set and all associated stack instances.
Even if the stack set operation created by updating the stack set fails (completely or partially, below or above a specified failure tolerance), the stack set is updated with your changes. Subsequent CreateStackInstances calls on the specified stack set use the updated stack set.
See also: AWS API Documentation
Request Syntax
client.update_stack_set(
StackSetName='string',
Description='string',
TemplateBody='string',
TemplateURL='string',
UsePreviousTemplate=True|False,
Parameters=[
{
'ParameterKey': 'string',
'ParameterValue': 'string',
'UsePreviousValue': True|False,
'ResolvedValue': 'string'
},
],
Capabilities=[
'CAPABILITY_IAM'|'CAPABILITY_NAMED_IAM',
],
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
OperationPreferences={
'RegionOrder': [
'string',
],
'FailureToleranceCount': 123,
'FailureTolerancePercentage': 123,
'MaxConcurrentCount': 123,
'MaxConcurrentPercentage': 123
},
OperationId='string'
)
string
[REQUIRED]
The name or unique ID of the stack set that you want to update.
string
A brief description of updates that you are making.
string
The structure that contains the template body, with a minimum length of 1 byte and a maximum length of 51,200 bytes. For more information, see Template Anatomy in the AWS CloudFormation User Guide.
Conditional: You must specify only one of the following parameters: TemplateBody or TemplateURL —or set UsePreviousTemplate to true.
string
The location of the file that contains the template body. The URL must point to a template (maximum size: 460,800 bytes) that is located in an Amazon S3 bucket. For more information, see Template Anatomy in the AWS CloudFormation User Guide.
Conditional: You must specify only one of the following parameters: TemplateBody or TemplateURL —or set UsePreviousTemplate to true.
boolean
Use the existing template that's associated with the stack set that you're updating.
Conditional: You must specify only one of the following parameters: TemplateBody or TemplateURL —or set UsePreviousTemplate to true.
list
A list of input parameters for the stack set template.
(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, AWS CloudFormation uses the default value that is 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 ` SSM parameter types <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#aws-ssm-parameter-types>`__ in the template.
list
A list of values that you must specify before AWS CloudFormation can create certain stack sets. Some stack set templates might include resources that can affect permissions in your AWS account—for example, by creating new AWS Identity and Access Management (IAM) users. For those stack sets, you must explicitly acknowledge their capabilities by specifying this parameter.
The only valid values are CAPABILITY_IAM and CAPABILITY_NAMED_IAM. The following resources require you to specify this parameter:
AWS::IAM::AccessKey
AWS::IAM::Group
AWS::IAM::InstanceProfile
AWS::IAM::Policy
AWS::IAM::Role
AWS::IAM::User
AWS::IAM::UserToGroupAddition
If your stack template contains these resources, we recommend that you review all permissions that are associated with them and edit their permissions if necessary.
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 this parameter, this action returns an InsufficientCapabilities error.
For more information, see Acknowledging IAM Resources in AWS CloudFormation Templates.
(string) --
list
The key-value pairs to associate with this stack set and the stacks created from it. AWS CloudFormation also propagates these tags to supported resources that are created in the stacks. You can specify a maximum number of 50 tags.
If you specify tags for this parameter, those tags replace any list of tags that are currently associated with this stack set. This means:
If you don't specify this parameter, AWS CloudFormation doesn't modify the stack's tags.
If you specify any tags using this parameter, you must specify all the tags that you want associated with this stack set, even tags you've specifed before (for example, when creating the stack set or during a previous update of the stack set.). Any tags that you don't include in the updated list of tags are removed from the stack set, and therefore from the stacks and resources as well.
If you specify an empty value, AWS CloudFormation removes all currently associated tags.
If you specify new tags as part of an UpdateStackSet action, AWS CloudFormation checks to see if you have the required IAM permission to tag resources. If you omit tags that are currently associated with the stack set from the list of tags you specify, AWS CloudFormation assumes that you want to remove those tags from the stack set, and checks to see if you have permission to untag resources. If you don't have the necessary permission(s), the entire UpdateStackSet action fails with an access denied error, and the stack set is not updated.
(dict) --
The Tag type enables you to specify a key-value pair that can be used to store information about an AWS CloudFormation stack.
Key (string) -- [REQUIRED]
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 (AWS) have the reserved prefix: aws: .
Value (string) -- [REQUIRED]
Required . A string containing the value for this tag. You can specify a maximum of 256 characters for a tag value.
dict
Preferences for how AWS CloudFormation performs this stack set operation.
RegionOrder (list) --
The order of the regions in where you want to perform the stack operation.
(string) --
FailureToleranceCount (integer) --
The number of accounts, per region, for which this operation can fail before AWS CloudFormation stops the operation in that region. If the operation is stopped in a region, AWS CloudFormation doesn't attempt the operation in any subsequent regions.
Conditional: You must specify either FailureToleranceCount or FailureTolerancePercentage (but not both).
FailureTolerancePercentage (integer) --
The percentage of accounts, per region, for which this stack operation can fail before AWS CloudFormation stops the operation in that region. If the operation is stopped in a region, AWS CloudFormation doesn't attempt the operation in any subsequent regions.
When calculating the number of accounts based on the specified percentage, AWS CloudFormation rounds down to the next whole number.
Conditional: You must specify either FailureToleranceCount or FailureTolerancePercentage , but not both.
MaxConcurrentCount (integer) --
The maximum number of accounts in which to perform this operation at one time. This is dependent on the value of FailureToleranceCount —MaxConcurrentCount is at most one more than the FailureToleranceCount .
Note that this setting lets you specify the maximum for operations. For large deployments, under certain circumstances the actual number of accounts acted upon concurrently may be lower due to service throttling.
Conditional: You must specify either MaxConcurrentCount or MaxConcurrentPercentage , but not both.
MaxConcurrentPercentage (integer) --
The maximum percentage of accounts in which to perform this operation at one time.
When calculating the number of accounts based on the specified percentage, AWS CloudFormation rounds down to the next whole number. This is true except in cases where rounding down would result is zero. In this case, CloudFormation sets the number as one instead.
Note that this setting lets you specify the maximum for operations. For large deployments, under certain circumstances the actual number of accounts acted upon concurrently may be lower due to service throttling.
Conditional: You must specify either MaxConcurrentCount or MaxConcurrentPercentage , but not both.
string
The unique ID for this stack set operation.
The operation ID also functions as an idempotency token, to ensure that AWS CloudFormation performs the stack set operation only once, even if you retry the request multiple times. You might retry stack set operation requests to ensure that AWS CloudFormation successfully received them.
If you don't specify an operation ID, AWS CloudFormation generates one automatically.
Repeating this stack set operation with a new operation ID retries all stack instances whose status is OUTDATED .
This field is autopopulated if not provided.
dict
Response Syntax
{
'OperationId': 'string'
}
Response Structure
(dict) --
OperationId (string) --
The unique ID for this stack set operation.