Add support for Cloudformation's parameter attribute UsePreviousValue (#31775)

* Add support for Cloudformation's parameter attribute UsePreviousValue
This commit is contained in:
jeffreykoetsier 2018-03-12 18:46:36 +01:00 committed by Sloane Hertel
parent c1008d693c
commit d54675b44b

View file

@ -33,7 +33,8 @@ options:
choices: [ "true", "false" ]
template_parameters:
description:
- a list of hashes of all the template variables for the stack
- 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)
required: false
default: {}
state:
@ -198,6 +199,24 @@ EXAMPLES = '''
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.
- 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
@ -586,7 +605,24 @@ def main():
stack_params['StackPolicyBody'] = open(module.params['stack_policy'], 'r').read()
template_parameters = module.params['template_parameters']
stack_params['Parameters'] = [{'ParameterKey': k, 'ParameterValue': str(v)} for k, v in template_parameters.items()]
stack_params['Parameters'] = []
for k, v in template_parameters.items():
if isinstance(v, dict):
# set parameter based on a dict to allow additional CFN Parameter Attributes
param = dict(ParameterKey=k)
if 'value' in v:
param['ParameterValue'] = str(v['value'])
if 'use_previous_value' in v and bool(v['use_previous_value']):
param['UsePreviousValue'] = True
param.pop('ParameterValue', None)
stack_params['Parameters'].append(param)
else:
# allow default k/v configuration to set a template parameter
stack_params['Parameters'].append({'ParameterKey': k, 'ParameterValue': str(v)})
if isinstance(module.params.get('tags'), dict):
stack_params['Tags'] = ansible.module_utils.ec2.ansible_dict_to_boto3_tag_list(module.params['tags'])