Where can I find the CloudFormation stack name?
- On the Stacks page of the CloudFormation console, select the name of the stack. CloudFormation displays the stack details for the selected stack.
- Select a stack details pane to view information related to its stack.
Table of Contents
How do I pass a given name in CloudFormation?
Specifying the name and parameters of the stack
- On the Specify Stack Details page, type a stack name in the Stack Name box.
- In the Parameters section, specify the parameters that are defined in the stack template.
- When you are satisfied with the parameter values, choose Next to continue with the configuration options for your stack.
Can CloudFormation interact with Lambda?
Overall, CloudFormation makes implementing AWS Lambda functions incredibly simple. Start by creating the template file that will define your resources. This will be your working folder for your code. Next, create your function in the appropriate file for the desired Lambda runtime.
How do you find the lambda function Arn in CloudFormation?
You can use the intrinsic functions, specifically Fn::GetAtt to get the arn of the lambda function.
How do I update my CloudFormation stack name?
Fortunately, this shouldn’t be that big of a deal in most cases, but it’s certainly something to keep in mind: you can’t change CloudFormation stack names. The only way to do this is to completely recreate your stack with the new name. You’ll have to recreate all the resources on that stack and remove the old ones.
What is a CloudFormation stack?
A stack is a collection of AWS resources that you can manage as a single unit. All resources in a stack are defined by the stack’s AWS CloudFormation template. A stack, for example, can include all the resources needed to run a web application, such as a web server, database, and network rules.
How do you implement lambda in CloudFormation?
To deploy a Lambda function and the S3 bucket in which it resides, you must first deploy the CloudFormation stack with the S3 bucket, put the Lambda function’s deployment package in the S3 bucket, and then specify the bucket. S3 and the object key in the CloudFormation template for the Lambda function resource…
What is the Lambda Arn function?
A feature version includes the following information: The feature code and any associated dependencies. The Lambda runtime that calls the function. All function settings, including environment variables. A unique Amazon Resource Name (ARN) to identify the specific version of the feature.
How do you call a Lambda function in CloudFormation?
5 answers
- Manually create an SNS topic.
- Add a custom resource that references a Lambda function to be called on creation.
- Add the Lambda function reference to a stack output, then write a simple script that does the stack creation and then manually calls the Lambda function.
Can a CloudFormation stack be renamed?
There is no way to move your CloudFormation resources to other stacks, or rename them. Once a resource is defined on a stack, the only way to put it on a different stack is to completely recreate the resource.
How do I rerun a CloudFormation stack?
To update the stack from the AWS Management Console Sign in to the AWS CloudFormation console at https://console.aws.amazon.com/cloudformation. On the CloudFormation Dashboard, choose the stack you created earlier, and then choose Update Stack.
What does Lambda do in AWS CloudFormation?
CloudFormation calls the Lambda function to provision, update, or delete a resource. The function should determine why it was called and respond accordingly. To do this, check the value of the event [‘RequestType’]. In the case of our Lambda function, we are not creating any new AWS resources.
How to look up information in the CloudFormation stack?
For resources created by CloudFormation, you can use the GetAtt intrinsic function to look up information. For stack parameters, you need a different approach. CloudFormation provides a way that we can address this challenge using custom resources.
How to search for resources in AWS Lambda?
The AWS Lambda function calls ec2.describe_subnets or ec2.describe_vpcs to find the resource based on the value of name_filter. The function then stores the resource attributes as elements of the response_data array for use by the CloudFormation template.
How to define a resource in AWS CloudFormation?
Define the CloudFormation resource itself. The resource properties will be the AWS Lambda function from step (1) and the VPC or subnet stack parameter (eg, subnet-12345 or vpc-67890). CloudFormation calls the Lambda function to provision the resource.