How can I quickly and effectively debug CloudFormation templates?
The most quick and effective method to debug CloudFormation template is AWS CloudFormation Linter i.e. cfn-lint followed by AWS CLI. Both are officially provided by AWS. AWS CloudFormation Linter (cfn-lint) cfn-lint helps lint and validate CloudFormation templates (JSON or YAML) against the CloudFormation Resource Specification along with more ...
AWS CloudFormation: One big template file or many small ones?
The best solution I've found is using a CloudFormation template frontend (I use troposphere - in python), so that you really describe infrastructure as code, with all the advantages of code (loops, conditionals, external file, functions) and in the end, you've got a …
How to create a new version of a Lambda function using …
2017年1月11日 · A version gets created when running "aws cloudformation create-stack" but the subsequent "aws cloudformation update-stack" commands don't do anything. There are no new Lambda versions created. I'm trying to get a new version of the Lambda function created after I upload new zip file to S3 and then run "update-stack".
How to create some random or unique value in a CloudFormation …
2019年8月26日 · Here's a GitHub project cloudformation-random-string, which has a Lambda function and a simple tutorial. Here's another tutorial Generate Passwords in AWS CloudFormation Template. You can refer to the Lambda function above and make it work for you.
How to loop through values in a CloudFormation template
2019年7月25日 · I am trying to pass a list of comma separated parameters in an AWS CloudFormation template and create multiple Amazon S3 buckets based on those values. I have a requirement where I will be passing a comma separated- list of country names and then the CloudFormation template would build that many S3 buckets (based on the names of countries ...
How AWS CloudFormation macros work - Stack Overflow
2020年1月6日 · A resource of type AWS::CloudFormation::Macro, which enables users to call the Lambda function from within AWS CloudFormation templates. This resource specifies the ARN of the Lambda function to invoke for this macro, and additional optional properties to …
How to upload a file into S3 bucket using CloudFormation script?
2019年3月11日 · Create a separate CloudFormation stack with macro.template. This creates the Transform Macro "S3Objects" that will then be available to any other stack in the region. The README.md explains how to "package" the macro template prior to adding to CloudFormation (it will need to include a separate source file for a Lambda function).
Difference between an Output & an Export - Stack Overflow
2020年6月18日 · In CloudFormation we have the ability to output some values from a template so that they can be retrieved by other processes, stacks, etc. This is typically the name of something, maybe a URL or something generated during stack creation (deployment), etc. We also have the ability to 'export' from a template.
How can I replace some string in AWS CloudFormation
2019年7月4日 · aws cloudformation deploy --template-file test.cfn.yaml --stack-name test1 --parameter-overrides Input=apples.bananas.org The output of this stack will contain apples.bananas . Within your script you can use !Join [ '', !Split [ '.org', !Ref Input ] ] to strip down your string as you wanted, replacing Input with the value you need changed.
CloudFormation: How to get a list of key pairs in a given region
2021年1月10日 · I have a very simple CF template that creates an EC2 instance. The key pair is specified as a parameter. I would like the list of possible key pairs to be populated automatically. Resources: MyIn...
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