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Choosing the best way to scale EC2 instances on demand

Migrating workloads into the cloud — and specifically to AWS — comes with many advantages. You can operate workloads in new ways. When you only pay for what you use and add capacity within minutes, the world of auto-scaling opens up. When your workload ...

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Calculate AWS Costs in Detail

Calculating AWS costs upfront is a challenge. To get accurate numbers, you have to understand the pricing model of the used AWS services. A pricing model consists of one or many pricing dimensions. E.g., GBs stored, number of requests, etc. Keep in mind...

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Getting Started with Free Templates for AWS CloudFormation

Writing CloudFormation templates from scratch is a lot of work. You will run into many issues along the way: the documentation is incomplete, magic values are required, unsupported combinations of attributes, etc. The feedback cycles are long. In the en...

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Unboxing S3 Object Lambda

Amazon S3 Object Lambda offers a way to execute a Lambda function when someone wants to download a file (GetObject) from an S3 bucket. You can implement whatever logic you wish and return any data as the response via the WriteGetObjectResponse API. Keep...

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How I use AWS Security Hub

AWS Security Hub provides a centralized and org-wide overview of how well you are doing in terms of security. Security Hub follows two strategies to collect the needed information: First, Security Hub runs checks based on security standards. Second, Sec...

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AWS Architecture Pattern for Scheduled & Serverless Batch Processing

Scheduled batch jobs are the heart of many business processes implemented by enterprise applications. Reports are generated daily, databases are optimized over the weekend, and business logic is executed nightly. The importance of batch jobs satisfies a...

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Real-world CodePipeline CI/CD examples

AWS CodePipeline helps us to orchestrate CI/CD pipelines. To implement real-world pipelines, CodePipeline calls additional AWS services to do the work. E.g., CodeBuild to run arbitrary scripts, CloudFormation to create or update stacks, or CodeDeploy to...

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Serving content only to logged-in users with CloudFront Signed Cookies

This blog can be accessed by anyone with access to the free Internet. It’s a public website. But many websites offer a members-only area. You have to log in to get access to parts of the website. In this blog post, I demonstrate how CloudFront can be us...

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Running containers on spot infrastructure

Running workloads on spot infrastructure is significantly cheaper. You can reduce your bill by 50% or more. Keep in mind that spot workloads can be terminated at any time. If you are lucky, you will be noticed 2 minutes upfront to shut down gracefully. ...

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Review: AWS Fault Injection Simulator (FIS) – Chaos as a Service?

AWS allows us to run applications distributed across EC2 instances and availability zones. By adding load balancers or message queues to the architecture, we can achieve fault tolerance or high availability. But how can we test that our system can survi...

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