Huge respect to companies that maintain their SDKs along with up-to-date documentation. It’s not easy when APIs change frequently.

Tomorrow!

One of the biggest announcements from Docker (@docker.com) this year, at least for me: Docker Hardened Images (DHI) are now free for every developer. Making secure, minimal, production-ready images available to everyone changes how we think about container security.

In case you missed it, I recently wrote about how you can run LLMs with Docker Compose using Docker Model Runner to speed up your AI development. Check it out here: dev.to/pradumnasara...

Using the "-ft" flag with Docker logs helps you follow the logs and monitor the output of a running container in real-time. Otherwise, without the flag, you have to keep typing the log command to get output. "-f" is for follow, and "-t" is for timestamps. @docker.com

People used to fight over JavaScript frameworks. That still happens, just quieter. Now the fight is between LLM models, and it is a very expensive one.

Exciting news! I’m honoured to share that I am officially a Microsoft MVP in DevOps! 🎉 I didn’t see this coming. People inside and outside the program say the award is like the “Oscars of tech,” and I’m truly grateful to Microsoft (@microsoft.com) for recognising me. #mvpbuzz

Hacktoberfest is over, but spam PRs are not.

Thank you, @aerabi.com, for gifting a copy of your newly published book, Docker and Kubernetes Security, and for bringing it all the way from Germany to Istanbul. I will go through it soon. If you want to learn @docker.com and Kubernetes security, I highly recommend this book.

One of the unexpected things that happened at Docker Summit in Istanbul was that I won the Most Active Docker Captain award. It was a weird and happy moment because going from just passionately using Docker to actually winning an award from them feels like a full-circle moment. @docker.com

One of the unexpected things that happened at Docker Summit in Istanbul was that I won the Most Active Docker Captain award. It was a weird and happy moment because going from just passionately using Docker to actually winning an award from them feels like a full-circle moment. @docker.com

You can define multiple AI models in Docker Compose. For example, if your app uses an LLM for chat and an embedding model for semantic search, both can be declared together in one file. No need to run models separately and then use them in your compose app. @docker.com

Docker Captains Summit 2025 in Istanbul🇹🇷 was an incredible experience! Over 50 Captains from 20+ countries came together for amazing discussions, cultural exchanges, and ideas to make Docker even better. Huge thanks to the Docker DevRel team for organising everything so smoothly!

Bad logs blame. Good logs explain.

It feels nice to have your interview published on Docker’s official website. @docker.com

There was chaos everywhere after the outage. It clearly shows how dependent we are on a single company or service. The same is true for any industry.

I still see many Docker Compose files that include a version field. After Docker Compose V2, you no longer need to specify a version. Both formats are still valid, but if you include a version, you’ll see a small warning in the terminal when you run the compose command. @docker.com

Not only can you use Docker Compose to run multiple services, but you can also use it to build images and save time typing long build commands in the command line. @docker.com

This is how my website pradumnasaraf.dev looks now compared to back in 2021.

Got my first endorsement for Docker and Kubernetes Security! 🚀 Huge thanks to Docker Captain & open-source contributor Pradumna Saraf for the kind words. 🙏 @pradumnasaraf.dev 📘 Launching Oct 1st → DockerSecurity.io

When a developer copies example code from your docs, it should run without edits. Because every broken example breaks trust instantly.

In case you missed my recent blog, I show how we can now define LLM models alongside your Docker Compose stack. With a single command, you can spin up or tear down models and services on demand. dev.to/pradumnasara...

When you run docker compose up, we can decide whether to pull a fresh image or use the one already on your machine. That’s why we use pull_policy. Here’s what you can set: - always: Always pull from the registry, even if you already have it. @docker.com (1/3)

The Open Letter’s newsletter, Edition 4, is LIVE! open.substack.com/pub/pradumna...

Working on the 4th edition of The Open Letter. It’s been a while since I sent one out. There will be some exciting news. If you haven’t subscribed yet, now’s the time: newsletter.pradumnasaraf.dev

I’ve updated my Speaking repository with the video and slides from my WASM vs Docker talk at KubeCon India. Check it out here: github.com/Pradumnasara...

With Docker Compose, you can run AI models too. Just like defining services or volumes in compose.yml, you can define models. @docker.com auto-injects the model configs into our app, and with `docker compose up` or down, the model is created or removed on demand.

It’s mind-blowing that my DevOps repo has crossed 3000 stars. I’m super glad it’s helping folks in their DevOps journey! github.com/Pradumnasara...

Docker Compose has always been one of my favorite features, and now it has become even more powerful. Now in @docker.com Compose, you can define LLM models to run alongside your stack. With a single command, you can create or destroy models and services on demand. dev.to/pradumnasara...

Soon.

KubeCon India was amazing. As always, I love hitting the stage and speaking about the tools and tech I enjoy using and sharing. The most important thing for me was reconnecting with friends and having non-professional/no-fluff chats over food (especially dosa).

Good logs tell stories.

If you noticed or not, there is a taste and design change to my thumbnails. It was always used to be a dark background with lighter colored text, etc. A few months ago, I moved on with attachment to darker shades, especially black colour. And I love this transition.

With the PullPrompt v1.4.0 release, it now supports Gemini 2.5 Pro by default. github.com/Pradumnasara...

With GenCLI v1.10.0. It now supports Gemini 2.5 Pro by default. You can also easily choose Flash and Flash-Lite lighter variants of Gemini 2.0 and 2.5 using the `gencli model` command. Learn more: github.com/Pradumnasara...

Built an MCP server using Python to track real-time flight data like airline flights, airport schedules, future flights & aircraft types using the Aviationstack API. Published it as a package so folks can use UVX or run by cloning the repo. github.com/Pradumnasara...

In case you missed my recent blog on how @docker.com made it super easy to run the MCP server, and manage server config and secrets/tokens in one place. Check it out. Also, it’s at 29.5k views on @dev.to, just 500 short of 30k! dev.to/pradumnasara...

In case you missed it, @docker.com, at the WeAreDevelopers conference announced an amazing new offering called Docker Offload! 🐳 We can run heavy dev tasks in the cloud without changing a thing locally, for fast and convenient development.

It’s been over a year since I became a Docker Captain. I’ve learned a lot by being surrounded by some of the coolest and most brilliant folks in the space. Also, it always feels nice to see your name on @docker.com official website.

A broken demo hurts more than no demo.

KubeCon China was an incredible experience! I loved speaking about development and the developer experience with Docker and WASM. It was also fascinating to explore and learn about China's tech scene, with its ecosystem of vendors and companies beyond the Western landscape.

The clearer your docs, the less support you need.

Over 13K views in 48 hours and trending No.1 on @dev.to under the @docker.com tag. Check it out if you haven't.

Learn how @docker.com makes it easy and quick to run MCP servers through the Docker MCP Catalog and MCP Toolkit. You don’t need to manage 10 or 100 MCP servers manually; with a single Docker MCP config, you can manage everything right from Docker Desktop. dev.to/pradumnasara...

Before travelling to Hong Kong, I was thinking about what I should get (not souvenirs), something that could be memorable and that I could attach to my backpack. I think someone was listening. Thank you, team KubeCon China, for these, especially that custom-moulded keychain. @linuxfoundation.org

View my verified achievement from @linuxfoundation.org for speaking at KubeCon China. www.credly.com/badges/dbfaa...

Happy to share that my Docker Captain title has been renewed for another year! It was one of the best things that happened to me last year. I’ve learned a lot, surrounded by some of the best people in the industry. @docker.com

I am here at KubeCon China (Hong Kong). If you're around, let's chat! I'll also be giving a talk later. I'll be in Hong Kong for a week, so feel free to reach out if you'd like to meet up. I'm more than happy to connect! @cncf.io @linuxfoundation.org

If your app logs don’t help during a failure, they failed too

Please don’t engage or schedule any meetings if you receive an email like this. Calendar Invite will have a link to join the meeting, which will prompt you to download the Brave browser. However, this is not the legitimate one; it is a malicious one and can take over your PC.