cloudformation_facts – Obtain facts about an AWS CloudFormation stack

New in version 2.2.

Synopsis

  • Gets information about an AWS CloudFormation stack

Requirements

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

  • boto
  • boto3 >= 1.0.0
  • python >= 2.6

Parameters

Parameter Choices/Defaults Comments
all_facts
-
Default:
"no"
Get all stack information for the stack
aws_access_key
-
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.

aliases: ec2_access_key, access_key
aws_secret_key
-
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.

aliases: ec2_secret_key, secret_key
ec2_url
-
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.
profile
-
added in 1.6
Uses a boto profile. Only works with boto >= 2.24.0.
region
-
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

aliases: aws_region, ec2_region
security_token
-
added in 1.6
AWS STS security token. If not set then the value of the AWS_SECURITY_TOKEN or EC2_SECURITY_TOKEN environment variable is used.

aliases: access_token
stack_events
-
Default:
"no"
Get stack events for the stack
stack_name
-
The name or id of the CloudFormation stack. Gathers facts for all stacks by default.
stack_policy
-
Default:
"no"
Get stack policy for the stack
stack_resources
-
Default:
"no"
Get stack resources for the stack
stack_template
-
Default:
"no"
Get stack template body for the stack
validate_certs
boolean
added in 1.5
    Choices:
  • no
  • yes ←
When set to "no", SSL certificates will not be validated for boto versions >= 2.6.0.

Notes

Note

  • 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_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
  • Ansible uses the boto configuration file (typically ~/.boto) if no credentials are provided. See https://boto.readthedocs.io/en/latest/boto_config_tut.html
  • AWS_REGION or EC2_REGION can be typically be used to specify the AWS region, when required, but this can also be configured in the boto config file

Examples

# Note: These examples do not set authentication details, see the AWS Guide for details.

# Get summary information about a stack
- cloudformation_facts:
    stack_name: my-cloudformation-stack

# Facts are published in ansible_facts['cloudformation'][<stack_name>]
- debug:
    msg: "{{ ansible_facts['cloudformation']['my-cloudformation-stack'] }}"

# Get stack outputs, when you have the stack name available as a fact
- set_fact:
    stack_name: my-awesome-stack

- cloudformation_facts:
    stack_name: "{{ stack_name }}"
  register: my_stack

- debug:
    msg: "{{ my_stack.ansible_facts.cloudformation[stack_name].stack_outputs }}"

# Get all stack information about a stack
- cloudformation_facts:
    stack_name: my-cloudformation-stack
    all_facts: true

# Get stack resource and stack policy information about a stack
- cloudformation_facts:
    stack_name: my-cloudformation-stack
    stack_resources: true
    stack_policy: true

# Fail if the stack doesn't exist
- name: try to get facts about a stack but fail if it doesn't exist
  cloudformation_facts:
    stack_name: nonexistent-stack
    all_facts: yes
  failed_when: cloudformation['nonexistent-stack'] is undefined

# Example dictionary outputs for stack_outputs, stack_parameters and stack_resources:
# "stack_outputs": {
#     "ApplicationDatabaseName": "dazvlpr01xj55a.ap-southeast-2.rds.amazonaws.com",
#     ...
# },
# "stack_parameters": {
#     "DatabaseEngine": "mysql",
#     "DatabasePassword": "****",
#     ...
# },
# "stack_resources": {
#     "AutoscalingGroup": "dev-someapp-AutoscalingGroup-1SKEXXBCAN0S7",
#     "AutoscalingSecurityGroup": "sg-abcd1234",
#     "ApplicationDatabase": "dazvlpr01xj55a",
#     "EcsTaskDefinition": "arn:aws:ecs:ap-southeast-2:123456789:task-definition/dev-someapp-EcsTaskDefinition-1F2VM9QB0I7K9:1"
#     ...
# }

Return Values

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

Key Returned Description
stack_description
dictionary
 if the stack exists
Summary facts about the stack
stack_events
list
 only if all_facts or stack_events is true and the stack exists
All stack events for the stack
stack_outputs
dictionary
 if the stack exists
Dictionary of stack outputs keyed by the value of each output 'OutputKey' parameter and corresponding value of each output 'OutputValue' parameter
stack_parameters
dictionary
 if the stack exists
Dictionary of stack parameters keyed by the value of each parameter 'ParameterKey' parameter and corresponding value of each parameter 'ParameterValue' parameter
stack_policy
dictionary
 only if all_facts or stack_policy is true and the stack exists
Describes the stack policy for the stack
stack_resource_list
list
 only if all_facts or stack_resourses is true and the stack exists
Describes stack resources for the stack
stack_resources
dictionary
 only if all_facts or stack_resourses is true and the stack exists
Dictionary of stack resources keyed by the value of each resource 'LogicalResourceId' parameter and corresponding value of each resource 'PhysicalResourceId' parameter
stack_template
dictionary
 only if all_facts or stack_template is true and the stack exists
Describes the stack template for the stack


Status

Authors

  • Justin Menga (@jmenga)

Hint

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