Jeroen Reijn

github.comCVE-2026-94603 - GitHub Advisory DatabasePodman: The `podman run` command can be instructed to disable almost all sandboxing by image annotation

Purrr programming on Sunday

Jeroen Reijn reposted

Ian Coldwater 🧊🚫

@lookitup.baby

Critical vulnerability in podman: CVE-2026-94603 The `podman run` command can be instructed to disable almost all sandboxing by image annotation Images being pulled should be scanned for the io.podman.annotations.checkpoint.runtime.name annotation, and rejected if it is present.

28 Aug

ticket ✅ hotel ✅ flight ✅ AWS re:Invent 2026 here I come!

11 Aug

I've been pondering what to do with the @aws_cb_blogs bot on X. With the X API price changes to on-demand pricing in Apri/May I've stopped the bot from posting as I found it becoming too expensive for a hobby project. Let's take a closer look in this thread. #awscommunity

Here is a visualization made with some help of AI.

dev.toAWS Community Builders — DEV Community ProfileBuild On!

11 Aug

I will keep the bot around in case the API pricing changes, but otherwise I would suggest following the posts via @awscmblogposts.bsky.social, an RSS reader or any other platform you prefer.

I took a dump from the dynmodb table and exported all entries to json. It turns out that since 2022 (when I started the bot) a total of 6692 blogposts have been published by the AWS community builders over at dev.to/aws-builders/. What an amazing number of posts!

11 Aug

Since the end of April/May, when the pricing change happened this would have started to cost me about $ 30 a month to keep it going. In my opinion the X API for posting content with a link (which all blog posts are) has been made extremely expensive.

statusgator.comThe Least Reliable AWS Region in 2025 | StatusGatorWe analyzed if AWS’ N. Virginia region remains the least reliable in 2025. Overview of outages, affected services, and the massive October 20 AWS incident, with insights from StatusGator’s real-time m...

17 Jan

In interesting analysis of all AWS regional outages in 2025 statusgator.com/blog/aws-lea...

Jeroen Reijn reposted

AWS Community Builder Blog Posts

@awscmblogposts.bsky.social

20 Dec 2025

✍️ New blog post by Jeroen Reijn Amazon ECS Express Mode from an IaC perspective #aws #ecs #infrastructureascode #cdk

dev.toAmazon ECS Express Mode from an IaC perspectiveAmazon recently launched a new feature for Amazon ECS called ECS Express Mode. While reading the...

Jeroen Reijn reposted

Teri Radichel

@teriradichel.bsky.social

6 Dec 2025

Pretty cool how AWS monitors and protects against threats like this. China-nexus cyber threat groups rapidly exploit React2Shell vulnerability (CVE-2025-55182) | AWS Security Blog aws.amazon.com/blogs/securi...

aws.amazon.comChina-nexus cyber threat groups rapidly exploit React2Shell vulnerability (CVE-2025-55182) | Amazon Web ServicesWithin hours of the public disclosure of CVE-2025-55182 (React2Shell) on December 3, 2025, Amazon threat intelligence teams observed active exploitation attempts by multiple China state-nexus threat g...

Jeroen Reijn reposted

Luc van Donkersgoed

@lucvandonkersgoed.com

2 Dec 2025

Amazon released 40 new features during Matt Garman’s opening keynote! Go check out buff.ly/xNZK1L9 to see all of them, including related blog posts 🚀

buff.lyThe AWS News FeedKeep track of AWS news and blogs. See what's hot, read summaries, search, set bookmarks and ratings, and categorize articles with tags.

m.twitch.tvAWS - TwitchRoad to re:Invent 2025

30 Nov 2025

Wanna watch a crazy live hackathon? Watch multiple teams compete in the road to re:invent challenge on the AWS Twitch #aws #roadtoreinvent m.twitch.tv/aws?desktop-...

Jeroen Reijn reposted

Gunnar Grosch

@gunnargrosch.com

25 Nov 2025

🚀 🆕 The AWS Lambda roadmap is now open and on GitHub! See what we're working on, researching, and planning. Provide feedback, collaborate on ideas! s12d.com/lambda-roadmap #aws #serverless

s12d.comGitHub - aws/aws-lambda-roadmapContribute to aws/aws-lambda-roadmap development by creating an account on GitHub.

aws.amazon.comThe Future of AWS CodeCommit | Amazon Web ServicesBack in July 2024, we announced plans to de-emphasize AWS CodeCommit based on adoption patterns and our assessment of customer needs. We never stopped looking at the data or listening to you, and what...

24 Nov 2025

I did not see that coming! aws.amazon.com/blogs/devops...

aws.amazon.comAWS Lambda now supports Java 25 | Amazon Web ServicesYou can now develop AWS Lambda functions using Java 25 either as a managed runtime or using the container base image. This blog post highlights notable Java language features, Java Lambda runtime upda...

This is great! Amazing to see it gets released so close to the Java 25 release! aws.amazon.com/blogs/comput... #java #aws #lambda

Starting with Java 25, Lambda no longer stops tiered compilation at C1 for SnapStart and Provisioned Concurrency.

AWS has also removed a log4j patch from the Java 25 runtime to restore optimal performance. This was implemented when Log4shell hit the industry and was in all previous runtimes.

This is great! Amazing to see it gets released so close to the Java 25 release! aws.amazon.com/blogs/comput... #java #aws #lambda

Lambda’s benchmarking results show that AOT caches deliver faster cold start performance compared to CDS. 🚀 AOT caches are now enabled by default in the Java 25 runtime to provide performance benefits.

If you deploy Java 25 functions using container images, you can either implement your own AOT caches or continue using CDS.

This is great! Amazing to see it gets released so close to the Java 25 release! aws.amazon.com/blogs/comput... #java #aws #lambda

There is a lot to unpack from this release though. It’s not just a runtime update.

AWS Lambda replaces the traditional Class Data Sharing (CDS) with ahead-of-time (AOT) caches. This is an advanced optimization feature from Project Leyden that is designed to improve application startup times and reduce memory footprint.

aws.amazon.comAmazon ECS now supports built-in Linear and Canary deployments - AWSDiscover more about what's new at AWS with Amazon ECS now supports built-in Linear and Canary deployments

30 Oct 2025

In July, AWS announced a powerful update to Amazon ECS with built-in support for blue/green deployments. Now two additional built in deployment strategies have been added: linear and canary deployment. This eliminates having to use CodeDeploy. aws.amazon.com/about-aws/wh...

20 Oct 2025

#hugops to all on call AWS engineers

20 Oct 2025

It seems some services in us-east-1 still have degraded operations. That’s a long disruption 😲. I hope they will share an extensive post mortem. Looking forward to learn from the lessons learned!

20 Oct 2025

While trying to figure out of there was anything wrong with our jira and bitbucket cloud signin it seems AWS is having issues in us-east-1 .

aws.amazon.comBig news: AWS expands AI certification portfolio and updates security certification | Amazon Web ServicesAWS announces major certification updates, introducing the AWS Certified Generative AI Developer - Professional certification and refreshing the AWS Certified Security – Specialty exam with enhanced...

14 Oct 2025

You can now become an AWS Certified Generative AI Developer - Professional! 😅 Machine Learning specialty is being retired and the Security Specialty is getting an update! #aws #certification aws.amazon.com/blogs/traini...

reinvent.awsevents.comAWS re:Invent 2025 Keynotes | Amazon Web ServicesHear from AWS leaders about what’s top of mind for them, from innovations in infrastructure and AI/ML to the latest trends and breakthroughs in cloud computing.

13 Oct 2025

Well it seems that I will most likely watch this years Werner Vogels re:Invent keynote the next day as it seems to start at 30 minutes past midnight Amsterdam local time. No keynote watch party this time 😅 reinvent.awsevents.com/keynotes/ #aws #reinvent

jeroenreijn.comImprove observability for Windows EC2 instances with the CloudWatch AgentLearn how to improve observability for Windows based EC2 instances with the CloudWatch agent via AWS CDK in TypeScript, including CloudWatch agent configuration and Windows performance counters.

6 Oct 2025

In my latest post, I show how to improve observability for Windows EC2 instances using the Amazon CloudWatch Agent, fully automated with AWS CDK (TypeScript). www.jeroenreijn.com/2025/10/impr... #aws #cdk #observability #cloudwatch

Today I’m at the AWS Community Day NL in Utrecht. Looking forward to connect with like minded people and learn from the speakers. Pretty cool entrance at a great venue (movie theater) #awscommunity #awscommunityday

From humans to AI. Next up a deep dive into “Building a chatbot solution with Amazon Bedrock AgentCore” with @jorisconijn.bsky.social

Final talk of the day was an interesting perspective on evolutionary architecture with Selcuk Sasoglu - “Why Modular Monolith is a great starting architecture for a Serverless application?”

Now two technologies I really like. “Next-Level Infrastructure as Code with AWS CDK and LocalStack” by Matheus das Merces

After a quick break back into an IMO keynote worthy presentation by my colleague Nico Krijnen - “The human side of coding”. It was a full room with interesting insights about the what making engineering a human practice.

First session of the day is by the great @theburningmonk.com “Serverless, the hard parts. “ Lots of shared wisdom at the beginning of the day.

Next up is “Challenges of using Private AppSync for 1100 Parcel Lockers accross The Netherlands” - by @cino.io . Interesting lessons learned from going secure and private by design.

19 Sept 2025

Bumped to iOS 26. So far so good. Not sure yet about this glass UI. It feels a bit slow at times on my iPhone 12 but overall the experience looks good.

dzone.comEnable AWS Budget Notifications With SNS Using AWS CDKIn this article, learn about how to set up AWS Budget notifications with SNS using AWS CDK in TypeScript, including gotchas around IAM and KMS policies.

18 Sept 2025

Sweet! My recent article on AWS budgets is now featured on the DZone homepage dzone.com/articles/aws...

9 Sept 2025

The AI summary in #bitbucket for PRs is a pretty handy feature. It writes clean notes for the reader of a pull request. Not that I can’t write them myself, but it definitely saves time and is probably better than that I would write them.

docs.aws.amazon.comLambda runtimes - AWS LambdaLearn about the languages that Lambda supports through runtimes.

2 Sept 2025

Java 25 will be the next LTS release. ETA is in two weeks (16th) as far as I know and I’m already looking forward to start using it in AWS Lambda, which seems to be planned for October according to docs.aws.amazon.com/lambda/lates... #aws #lambda #java

@serverlessadvocate.bsky.social

2 Sept 2025

Yesterday just before the CFP deadline I submitted some talks for @nljug.bsky.social #Jfall. Hoping one of my talks goes through 🤞, so I can continue my once in 3 year score streak (presented in 2019 and 2022 I noticed 🙃)

Jeroen Reijn reposted

Lee Gilmore

31 Aug 2025

⭐ Issue #51 of the Serverless Advocate Newsletter is now out! serverlessadvocate.substack.com/p/51-increme... This week, our serverless expert is AWS Community Builder @tpschmidt.com, and our spotlight falls on AWS Community Builder Kate Gawron! 🏆 Please share! ♻️ #AWS #Serverless

aws.amazon.comComing soon: Exam update and new name for cloud operations certification | Amazon Web ServicesLearn about updates we're making to the AWS Certified CloudOps Engineer – Associate exam (formerly known as AWS Certified SysOps Administrator – Associate) to align with the latest skills and…

31 Aug 2025

Was planning to take the AWS SysOps exam in September, but I will wait to see the changes in the new exam as it’s renamed to CloudOps with more focus on containers: aws.amazon.com/blogs/traini... #aws #certification

docs.aws.amazon.comX-Ray SDK and daemon end of support timeline - AWS X-RayThe following table lists the dates and the level of support for X-Ray SDKs and daemon.

27 Aug 2025

Are you using the AWS X-Ray SDK or the X-Ray daemon for your application to send traceability data into AWS X-Ray? 🕵 🚨 AWS is ending support for the AWS X-Ray SDK and X-Ray daemon. docs.aws.amazon.com/xray/latest/... #aws

docs.aws.amazon.comMigrating from X-Ray instrumentation to OpenTelemetry instrumentation - AWS X-RayThis chapter discusses the transition to OpenTelemetry, and provides migration guidance for AWS users.

27 Aug 2025

It's recommended to migrate to OpenTelemetry solutions for instrumenting your application and sending traces to AWS X-Ray. Checkout the X-Ray instrumentation to OpenTelemetry instrumentation migration guide at docs.aws.amazon.com/xray/latest/... #aws

AWS Community Builder Blog Posts

27 Aug 2025

The network reachability analyzer in the AWS console is actually a pretty handy tool! Troubleshooting some connectivity issues with the on-prem environment and at least it validating all is good on the AWS side. 😅

Jeroen Reijn reposted

@awscmblogposts.bsky.social

25 Aug 2025

✍️ New blog post by Jeroen Reijn Enabling AWS Budget Notifications with SNS using AWS CDK #aws #typescript #awscdk #finops

dev.toEnabling AWS Budget Notifications with SNS using AWS CDKKeeping track of AWS spend is very important. Especially since it’s so easy to create resources. You...

aws.amazon.comIntroducing AWS Builder Center: A new home for the AWS builder community | Amazon Web ServicesVisit builder.aws.com to begin exploring AWS Builder Center. Sign up for a Builder ID if you don't have one yet and claim your unique alias to access all features, including content creation, wishlist...

9 July 2025

AWS just launched the AWS Builder Center. A centralized place for AWS Builders. Looks great! Go check it the introduction post at aws.amazon.com/blogs/aws/in...

credly.comAWS Partner: Digital Sovereignty on AWS (Technical) was issued by Amazon Web Services Training and Certification to Jeroen Reijn.Earners of this badge have demonstrated technical knowledge of AWS Services and sovereign-by-design approaches to guide and support their customers in addressing their digital sovereignty requirements...

2 July 2025

Finished the @awscloud.bsky.social Digital Sovereignty partner learning path tonight. I think it offers a lot of information and tips on how the solve sovereignty requirements. www.credly.com/badges/c3190... #aws #digitalsovereignty