Tag cloudformation

Pitfall: ACM Certificate with CloudFormation

Good news, CloudFormation added support for AWS Certificate Manager recently. Creating a CloudFront distribution which is using an ACM certificate is finally possible with CloudFromation as well. The following listing shows the definition of an ACM cert...

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Reference API Gateway Models in CloudFormation

API Gateway Models are defined using JSON Schema. You can reference a Model inside another Model using the $ref field. If you are familiar with the OpenAPI Specification fka Swagger, you may have seen something like this: { "$ref": "#/definitions/...

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Jenkins Templates for AWS CloudFormation

This page has moved to GitHub: https://github.com/widdix/aws-cf-templates/tree/master/jenkins

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API Gateway Custom Authorization with Lambda, DynamoDB and CloudFormation

API Gateway Custom Authorization with Lambda, DynamoDB and CloudFormation

API Gateway provides an HTTP API endpoint that is fully configurable. You define the HTTP resources (like /user), the HTTP methods on that resources (like POST, GET, DELETE, …) and the integration (e.g. Lambda function) that should be called to process ...

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Your AWS Account is a mess? Learn how to fix it!

Your AWS Account is a mess? Learn how to fix it!

Have you no wildcard ec2:* in your IAM policies? Your Security Group rules are as strict as possible? Your S3 Bucket Access Policies only contain rules you know? You know about every single resource that runs in your account? If so, stop reading and ple...

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Create a serverless RESTful API with API Gateway, CloudFormation, Lambda, and DynamoDB

Create a serverless RESTful API with API Gateway, CloudFormation, Lambda, and DynamoDB

This article teaches you how to create a serverless RESTful API on AWS. You will use CloudFormation to define the API Gateway in combination with Lambda to implement the functionality. DynamoDB is used to store the data. The example’s source code is ava...

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The Life of a Serverless Microservice on AWS

The Life of a Serverless Microservice on AWS

In this post, I will demonstrate how you can develop, test, deploy and operate a production-ready Serverless Microservice using the AWS ecosystem. The combination of AWS Lambda and Amazon API Gateway allows us to operate a REST endpoint without the need...

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New CloudFormation Templates - NAT Gateway, Static website, Security

New CloudFormation Templates - NAT Gateway, Static website, Security

We released four new CloudFormation templates. Using our Infrastructure as Code templates will help you to bootstrap common setups on Amazon Web Services (AWS) within minutes. Our templates are exclusively designed for AWS CloudFormation, the Infrastruc...

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Security Templates for AWS CloudFormation

This page has moved to GitHub: https://github.com/widdix/aws-cf-templates/tree/master/security

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Optional Parameter in CloudFormation

Sometimes you want a CloudFormation Parameter to be optional. Unfortunately a blank Parameter contains an empty string. If you pass this empty string to e.g. the KeyName Property of an EC2 Instance or Launch Configuration you end up with a validation er...

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