amazon.aws.cloudformation module – Create or delete an AWS CloudFormation stack

Note

This module is part of the amazon.aws collection (version 3.5.0).

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

To install it, use: ansible-galaxy collection install amazon.aws. You need further requirements to be able to use this module, see Requirements for details.

To use it in a playbook, specify: amazon.aws.cloudformation.

New in amazon.aws 1.0.0

Synopsis

  • Launches or updates an AWS CloudFormation stack and waits for it complete.

Requirements

The below requirements are needed on the host that executes this module.

  • python >= 3.6

  • boto3 >= 1.16.0

  • botocore >= 1.19.0

Parameters

Parameter

Comments

aws_access_key

aliases: ec2_access_key, access_key

string

AWS access key. If not set then the value of the AWS_ACCESS_KEY_ID, AWS_ACCESS_KEY or EC2_ACCESS_KEY environment variable is used.

If profile is set this parameter is ignored.

Passing the aws_access_key and profile options at the same time has been deprecated and the options will be made mutually exclusive after 2022-06-01.

aws_ca_bundle

path

The location of a CA Bundle to use when validating SSL certificates.

Not used by boto 2 based modules.

Note: The CA Bundle is read ‘module’ side and may need to be explicitly copied from the controller if not run locally.

aws_config

dictionary

A dictionary to modify the botocore configuration.

Parameters can be found at https://botocore.amazonaws.com/v1/documentation/api/latest/reference/config.html#botocore.config.Config.

Only the ‘user_agent’ key is used for boto modules. See http://boto.cloudhackers.com/en/latest/boto_config_tut.html#boto for more boto configuration.

aws_secret_key

aliases: ec2_secret_key, secret_key

string

AWS secret key. If not set then the value of the AWS_SECRET_ACCESS_KEY, AWS_SECRET_KEY, or EC2_SECRET_KEY environment variable is used.

If profile is set this parameter is ignored.

Passing the aws_secret_key and profile options at the same time has been deprecated and the options will be made mutually exclusive after 2022-06-01.

backoff_delay

integer

Number of seconds to wait for the next retry.

Default: 3

backoff_max_delay

integer

Maximum amount of time to wait between retries.

Default: 30

backoff_retries

integer

Number of times to retry operation.

AWS API throttling mechanism fails CloudFormation module so we have to retry a couple of times.

Default: 10

capabilities

list / elements=string

Specify capabilities that stack template contains.

Valid values are CAPABILITY_IAM, CAPABILITY_NAMED_IAM and CAPABILITY_AUTO_EXPAND.

Default: ["CAPABILITY_IAM", "CAPABILITY_NAMED_IAM"]

changeset_name

string

Name given to the changeset when creating a changeset.

Only used when create_changeset=true.

By default a name prefixed with Ansible-STACKNAME is generated based on input parameters. See the AWS Change Sets docs for more information https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-changesets.html

create_changeset

boolean

If stack already exists create a changeset instead of directly applying changes. See the AWS Change Sets docs https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-changesets.html.

WARNING: if the stack does not exist, it will be created without changeset. If state=absent, the stack will be deleted immediately with no changeset.

Choices:

  • false ← (default)

  • true

create_timeout

integer

The amount of time (in minutes) that can pass before the stack status becomes CREATE_FAILED

debug_botocore_endpoint_logs

boolean

Use a botocore.endpoint logger to parse the unique (rather than total) “resource:action” API calls made during a task, outputing the set to the resource_actions key in the task results. Use the aws_resource_action callback to output to total list made during a playbook. The ANSIBLE_DEBUG_BOTOCORE_LOGS environment variable may also be used.

Choices:

  • false ← (default)

  • true

disable_rollback

boolean

If a stacks fails to form, rollback will remove the stack.

Choices:

  • false ← (default)

  • true

ec2_url

aliases: aws_endpoint_url, endpoint_url

string

URL to use to connect to EC2 or your Eucalyptus cloud (by default the module will use EC2 endpoints). Ignored for modules where region is required. Must be specified for all other modules if region is not used. If not set then the value of the EC2_URL environment variable, if any, is used.

events_limit

integer

Maximum number of CloudFormation events to fetch from a stack when creating or updating it.

Default: 200

notification_arns

string

A comma separated list of Simple Notification Service (SNS) topic ARNs to publish stack related events.

on_create_failure

string

Action to take upon failure of stack creation. Incompatible with the disable_rollback option.

Choices:

  • "DO_NOTHING"

  • "ROLLBACK"

  • "DELETE"

profile

aliases: aws_profile

string

Using profile will override aws_access_key, aws_secret_key and security_token and support for passing them at the same time as profile has been deprecated.

aws_access_key, aws_secret_key and security_token will be made mutually exclusive with profile after 2022-06-01.

region

aliases: aws_region, ec2_region

string

The AWS region to use. If not specified then the value of the AWS_REGION or EC2_REGION environment variable, if any, is used. See http://docs.aws.amazon.com/general/latest/gr/rande.html#ec2_region

role_arn

string

The role that AWS CloudFormation assumes to create the stack. See the AWS CloudFormation Service Role docs https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-iam-servicerole.html

security_token

aliases: aws_session_token, session_token, aws_security_token, access_token

string

AWS STS security token. If not set then the value of the AWS_SECURITY_TOKEN or EC2_SECURITY_TOKEN environment variable is used.

If profile is set this parameter is ignored.

Passing the security_token and profile options at the same time has been deprecated and the options will be made mutually exclusive after 2022-06-01.

Aliases aws_session_token and session_token have been added in version 3.2.0.

stack_name

string / required

Name of the CloudFormation stack.

stack_policy

string

The path of the file containing the CloudFormation stack policy. A policy cannot be removed once placed, but it can be modified. for instance, allow all updates https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/protect-stack-resources.html#d0e9051

stack_policy_body

json

added in amazon.aws 1.5.0

The CloudFormation stack policy in JSON. A policy cannot be removed once placed, but it can be modified. for instance, allow all updates https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/protect-stack-resources.html#d0e9051

stack_policy_on_update_body

json

added in amazon.aws 1.5.0

the body of the cloudformation stack policy only applied during this update.

state

string

If state=present, stack will be created.

If state=present and if stack exists and template has changed, it will be updated.

If state=absent, stack will be removed.

Choices:

  • "present" ← (default)

  • "absent"

tags

dictionary

Dictionary of tags to associate with stack and its resources during stack creation.

Can be updated later, updating tags removes previous entries.

template

path

The local path of the CloudFormation template.

This must be the full path to the file, relative to the working directory. If using roles this may look like roles/cloudformation/files/cloudformation-example.json.

If state=present and the stack does not exist yet, either template, template_body or template_url must be specified (but only one of them).

If state=present, the stack does exist, and neither template, template_body nor template_url are specified, the previous template will be reused.

template_body

string

Template body. Use this to pass in the actual body of the CloudFormation template.

If state=present and the stack does not exist yet, either template, template_body or template_url must be specified (but only one of them).

If state=present, the stack does exist, and neither template, template_body nor template_url are specified, the previous template will be reused.

template_format

string

This parameter is ignored since Ansible 2.3 and will be removed after 2022-06-01.

Templates are now passed raw to CloudFormation regardless of format.

template_parameters

dictionary

A list of hashes of all the template variables for the stack. The value can be a string or a dict.

Dict can be used to set additional template parameter attributes like UsePreviousValue (see example).

Default: {}

template_url

string

Location of file containing the template body. The URL must point to a template (max size 307,200 bytes) located in an S3 bucket in the same region as the stack.

If state=present and the stack does not exist yet, either template, template_body or template_url must be specified (but only one of them).

If state=present, the stack does exist, and neither template, template_body nor template_url are specified, the previous template will be reused.

termination_protection

boolean

Enable or disable termination protection on the stack.

Choices:

  • false

  • true

validate_certs

boolean

When set to “no”, SSL certificates will not be validated for communication with the AWS APIs.

Choices:

  • false

  • true ← (default)

Notes

Note

  • CloudFormation features change often, and this module tries to keep up. That means your botocore version should be fresh. The version listed in the requirements is the oldest version that works with the module as a whole. Some features may require recent versions, and we do not pinpoint a minimum version for each feature. Instead of relying on the minimum version, keep botocore up to date. AWS is always releasing features and fixing bugs.

  • If parameters are not set within the module, the following environment variables can be used in decreasing order of precedence AWS_URL or EC2_URL, AWS_PROFILE or AWS_DEFAULT_PROFILE, AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY or EC2_ACCESS_KEY, AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY or EC2_SECRET_KEY, AWS_SECURITY_TOKEN or EC2_SECURITY_TOKEN, AWS_REGION or EC2_REGION, AWS_CA_BUNDLE

  • When no credentials are explicitly provided the AWS SDK (boto3) that Ansible uses will fall back to its configuration files (typically ~/.aws/credentials). See https://boto3.amazonaws.com/v1/documentation/api/latest/guide/credentials.html for more information.

  • Modules based on the original AWS SDK (boto) may read their default configuration from different files. See https://boto.readthedocs.io/en/latest/boto_config_tut.html for more information.

  • AWS_REGION or EC2_REGION can be typically be used to specify the AWS region, when required, but this can also be defined in the configuration files.

Examples

- name: create a cloudformation stack
  amazon.aws.cloudformation:
    stack_name: "ansible-cloudformation"
    state: "present"
    region: "us-east-1"
    disable_rollback: true
    template: "files/cloudformation-example.json"
    template_parameters:
      KeyName: "jmartin"
      DiskType: "ephemeral"
      InstanceType: "m1.small"
      ClusterSize: 3
    tags:
      Stack: "ansible-cloudformation"

# Basic role example
- name: create a stack, specify role that cloudformation assumes
  amazon.aws.cloudformation:
    stack_name: "ansible-cloudformation"
    state: "present"
    region: "us-east-1"
    disable_rollback: true
    template: "roles/cloudformation/files/cloudformation-example.json"
    role_arn: 'arn:aws:iam::123456789012:role/cloudformation-iam-role'

- name: delete a stack
  amazon.aws.cloudformation:
    stack_name: "ansible-cloudformation-old"
    state: "absent"

# Create a stack, pass in template from a URL, disable rollback if stack creation fails,
# pass in some parameters to the template, provide tags for resources created
- name: create a stack, pass in the template via an URL
  amazon.aws.cloudformation:
    stack_name: "ansible-cloudformation"
    state: present
    region: us-east-1
    disable_rollback: true
    template_url: https://s3.amazonaws.com/my-bucket/cloudformation.template
    template_parameters:
      KeyName: jmartin
      DiskType: ephemeral
      InstanceType: m1.small
      ClusterSize: 3
    tags:
      Stack: ansible-cloudformation

# Create a stack, passing in template body using lookup of Jinja2 template, disable rollback if stack creation fails,
# pass in some parameters to the template, provide tags for resources created
- name: create a stack, pass in the template body via lookup template
  amazon.aws.cloudformation:
    stack_name: "ansible-cloudformation"
    state: present
    region: us-east-1
    disable_rollback: true
    template_body: "{{ lookup('template', 'cloudformation.j2') }}"
    template_parameters:
      KeyName: jmartin
      DiskType: ephemeral
      InstanceType: m1.small
      ClusterSize: 3
    tags:
      Stack: ansible-cloudformation

# Pass a template parameter which uses CloudFormation's UsePreviousValue attribute
# When use_previous_value is set to True, the given value will be ignored and
# CloudFormation will use the value from a previously submitted template.
# If use_previous_value is set to False (default) the given value is used.
- amazon.aws.cloudformation:
    stack_name: "ansible-cloudformation"
    state: "present"
    region: "us-east-1"
    template: "files/cloudformation-example.json"
    template_parameters:
      DBSnapshotIdentifier:
        use_previous_value: True
        value: arn:aws:rds:es-east-1:000000000000:snapshot:rds:my-db-snapshot
      DBName:
        use_previous_value: True
    tags:
      Stack: "ansible-cloudformation"

# Enable termination protection on a stack.
# If the stack already exists, this will update its termination protection
- name: enable termination protection during stack creation
  amazon.aws.cloudformation:
    stack_name: my_stack
    state: present
    template_url: https://s3.amazonaws.com/my-bucket/cloudformation.template
    termination_protection: yes

# Configure TimeoutInMinutes before the stack status becomes CREATE_FAILED
# In this case, if disable_rollback is not set or is set to false, the stack will be rolled back.
- name: enable termination protection during stack creation
  amazon.aws.cloudformation:
    stack_name: my_stack
    state: present
    template_url: https://s3.amazonaws.com/my-bucket/cloudformation.template
    create_timeout: 5

# Configure rollback behaviour on the unsuccessful creation of a stack allowing
# CloudFormation to clean up, or do nothing in the event of an unsuccessful
# deployment
# In this case, if on_create_failure is set to "DELETE", it will clean up the stack if
# it fails to create
- name: create stack which will delete on creation failure
  amazon.aws.cloudformation:
    stack_name: my_stack
    state: present
    template_url: https://s3.amazonaws.com/my-bucket/cloudformation.template
    on_create_failure: DELETE

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key

Description

change_set_id

string

The ID of the stack change set if one was created

Returned: state=present and create_changeset=true

Sample: "arn:aws:cloudformation:us-east-1:012345678901:changeSet/Ansible-StackName-f4496805bd1b2be824d1e315c6884247ede41eb0"

events

list / elements=string

Most recent events in CloudFormation’s event log. This may be from a previous run in some cases.

Returned: always

Sample: ["StackEvent AWS::CloudFormation::Stack stackname UPDATE_COMPLETE", "StackEvent AWS::CloudFormation::Stack stackname UPDATE_COMPLETE_CLEANUP_IN_PROGRESS"]

log

list / elements=string

Debugging logs. Useful when modifying or finding an error.

Returned: always

Sample: ["updating stack"]

stack_outputs

dictionary

A key:value dictionary of all the stack outputs currently defined. If there are no stack outputs, it is an empty dictionary.

Returned: state == present

Sample: {"MySg": "AnsibleModuleTestYAML-CFTestSg-C8UVS567B6NS"}

stack_resources

list / elements=string

AWS stack resources and their status. List of dictionaries, one dict per resource.

Returned: state == present

Sample: [{"last_updated_time": "2016-10-11T19:40:14.979000+00:00", "logical_resource_id": "CFTestSg", "physical_resource_id": "cloudformation2-CFTestSg-16UQ4CYQ57O9F", "resource_type": "AWS::EC2::SecurityGroup", "status": "UPDATE_COMPLETE", "status_reason": null}]

Authors

  • James S. Martin (@jsmartin)