def already_exists_overwrite(cfn_params, outputs, stack_id):
cfn_client = boto3.client('cloudformation')
cfn_params['Table'] = "1"
cfn_params['Overwrite'] = "true"
cfn_client.update_stack(
StackName=stack_id,
UsePreviousTemplate=True,
Parameters=dict_to_param_array(cfn_params),
)
assert CloudFormationStates.UPDATE_COMPLETE == wait_until_stack_stable(stack_id)
ddb_client = boto3.client('dynamodb')
item = ddb_client.get_item(
TableName=outputs['Table1Name'],
Key={"key": {"S": "foo"}},
)
assert {
"key": {"S": "foo"},
"value": {"S": "42"},
} == item['Item']
item = ddb_client.get_item(
TableName=outputs['Table2Name'],
Key={"key": {"S": "foo"}},
)
assert 'Item' not in item
def create_stack(cfn_params, stack_name):
cfn_client = boto3.client('cloudformation')
stack_id = cfn_client.create_stack(
StackName=stack_name,
TemplateBody=template.to_json(),
Parameters=dict_to_param_array(cfn_params),
)
stack_id = stack_id['StackId']
assert CloudFormationStates.CREATE_COMPLETE == wait_until_stack_stable(stack_id)
stack_info = cfn_client.describe_stacks(
StackName=stack_id,
)
outputs = {
_['OutputKey']: _['OutputValue']
for _ in stack_info['Stacks'][0]['Outputs']
}
ddb_client = boto3.client('dynamodb')
item = ddb_client.get_item(
TableName=outputs['Table1Name'],
Key={"key": {"S": "foo"}},
)
assert {
"key": {"S": "foo"},
"value": {"S": "bar"},
} == item['Item']
return outputs, stack_id
def delete_stack(cfn_params, outputs, stack_id):
cfn_client = boto3.client('cloudformation')
cfn_client.delete_stack(
StackName=stack_id,
)
assert CloudFormationStates.DELETE_COMPLETE == wait_until_stack_stable(stack_id)