Articles tagged with "level-300"

I will show you how to implement pessimistic locking using Python with DynamoDB as our backend. Before we start, we’ll review the basics and discuss some of the design criteria we’re looking for. In an earlier post, I outlined to you how to implement optimistic locking using DynamoDB. There, I explained some of the reasons why locking is useful and which issues it can prevent. If you’re unfamiliar with the topic, I suggest you check that one out first.

The new agentless collector for the Application Discovery Service can be used to collect data from VMware vCenter and thus is useful whenever the ADS agent cannot be installed on the servers. However, AWS “forgot to mention” how to ensure connectivity over a proxy server in environments that do not allow direct internet access. Here`s how I fixed the issue.

This is the story of how we accidentally learned more about the internals of Glue Crawlers than we ever wanted to know. Once upon a time (a few days ago), André and I were debugging a crawler that didn’t do what it was supposed to. Before we dive into that, maybe some background on Crawlers first. Glue Crawlers are used to create tables in the Glue Data Catalog. They crawl, i.

You have got some mails from AWS: [Action Required] AWS Lambda end of support for Node.js 12 [Action Required] AWS Lambda end of support for Python 3.6 [Solution Required] Search all Lambdas in multiple accounts. [Solution Found] Steampipe with AWS multi-account support. Multi-account management is like managing all the arms of a Kraken. I will show you a fast and straightforward solution for this. (* the new offical name is IAM Identity Center, but I think TASFKAS would also fit 😉)

You like Lambda testevents? Great! But with “automate everything”, manual console clicks are considered dirty! Keep your hand clean by automating the creation of Lambda test events. So you can give your team, and yourself prepopulated test events. This example shows you the terraform code - because this is the fastest way. With a little effort, you can translate it to CloudFormation or AWS-CDK!

In this blog, we’ll look at two features in boto3/botocore that are often overlooked - Pagination and Waiters. In addition to that, we’ll explore how these are implemented under the hood.

AWS Config checks all your resources for compliance. With 260 managed rules, it covers a lot of ground. But if you need additional checks until now, you had to write a complex Lambda function. With the new “Custom Policy” type, it is possible to use declarative Guard rules. Custom Policy rules use less lines of code and are so much easier to read.

Amazon Ion is one of the data serialization formats you can use when exporting data from DynamoDB to S3. Recently, I tried to select data from one of these exports with Athena after using a Glue Crawler to create the schema and table. It didn’t work, and I got a weird error message. In this post, I’ll show you how to fix that problem. If you’re not familiar with Ion yet, check out my recent blog post introducing it for more details.