In case you missed it: Vercel now supports Dockerfile deployments. That means you can host almost any stack there, not just frontends. I wrote a short guide using a small Go app and a multi-stage Docker build. dev.to/pradumnasara...

Deploy a Dockerfile on Vercel

Yes, you heard it right, you can now run a Dockerfile on Vercel. Vercel was the go-to place where...

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You can now use OIDC to authenticate GitHub Actions with Docker Hub. No more PATs sitting in your repo secrets. Each run gets a short-lived token instead. Nothing to rotate. Nothing to leak. @docker.com

Two Docker commands worth knowing. One shows what is in your build cache. The other shows your images, containers and volumes. Run both before you delete anything. @docker.com

Weekend project: Agent PR Police A GitHub Action that catches PRs opened by AI coding agents. It labels the PR and drops a comment saying which agent opened it and what it changed, so reviewers know. Built with Go and runs as a Docker action. github.com/Pradumnasara...

GitHub - Pradumnasaraf/agent-pr-police: GitHub Action that detects pull requests opened by AI coding agents, labels them, and posts a summary of what they changed.

GitHub Action that detects pull requests opened by AI coding agents, labels them, and posts a summary of what they changed. - Pradumnasaraf/agent-pr-police

github.com

You can now deploy Docker containers directly on Vercel. I wrote a step-by-step guide showing how to deploy a Dockerfile on Vercel using a Golang application. Check it out: dev.to/pradumnasara... @docker.com @vercel.com

Deploy a Dockerfile on Vercel

Yes, you heard it right, you can now run a Dockerfile on Vercel. Vercel was the go-to place where...

dev.to

Tomorrow!

This book is different from any other one I've read. Recently, I was one of the technical reviewers for the book "Operational AI with Docker". This was my first time reviewing a book, and I loved it. There's something special about being part of a book from the early idea stage, watching it..

In Docker Compose, you can use post_start to run commands after your container starts. It's useful for things like fixing file permissions, creating folders, or running any one-time setup before your app is ready. @docker.com

Rebuilding or pulling a new version of an image with the same name and tag can leave behind dangling images. Use the following command to list all dangling Docker images and reclaim disk space by removing them. @docker.com

AI coding agents are powerful, but they shouldn't have unrestricted access to your system. Learn how Docker sandboxes can provide a secure environment for running agents without compromising developer productivity. dev.to/pradumnasara...

Run AI Coding Agents Safely with Docker Sandboxes

AI agents can run commands, modify files, and download files from untrusted sources directly on a...

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Excited to share that I've been renewed as a Docker Captain! 🐳 It's been a crazy journey; learned a ton and made some great new friends along the way. Huge thanks to Eva and the Docker team (@docker.com), and the incredible Docker community for the continued trust and support.

Tomorrow!

The Docker Compose environment variable support goes beyond just ${VAR}. Useful when you want safer configurations without hardcoding values. `:-` → use a default value (optional configuration) `:?` → stop with an error message (required values like secrets) @docker.com

Check out my new blog on how to run Claude Code locally for free with Docker (@docker.com) Model Runner. dev.to/pradumnasara...

Run Claude Code Locally for Free with Docker Model Runner

We know that the Claude Code is phenomenal for development and code. But we can easily run out of...

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Tomorrow!

Two supply chain attacks. Same pattern. Trivy and KICS show how compromised credentials can turn trusted CI/CD pipelines into a delivery path for malicious artifacts. Docker shared an informative blog breaking down what actually happened: www.docker.com/blog/trivy-k... @docker.com

Are you running out of tokens in OpenCode or Claude Code? Check out my recent guides on running them locally. I wrote official Docker guides on using OpenCode & Claude Code with Docker Model Runner. OpenCode: docs.docker.com/guides/openc... Claude Code: docs.docker.com/guides/claud...

Use `stop_grace_period` to give your app time to shut down properly. When you stop a container, @Docker waits before force-killing it. This helps finish requests, save data, and avoid unexpected issues. @docker.com

Meet Pradumna Saraf. Docker Captain. Open source advocate. Community builder. In this spotlight, he shares his journey into containers and cloud-native, and what keeps him excited about the future of development. Read more: https://bit.ly/46WNUjF

Switching to a Docker Hardened Image (DHI) is a simple change. The Docker workflow remains the same, but the base image is built with fewer packages, reduced attack surface, and better security defaults. @docker.com

In Docker Compose, you can use `cache_from` in the `build` section to reuse layers from an existing image and speed up builds This is especially useful in CI environments where a local build cache doesn’t exist. @docker.com

Play with Docker is now deprecated and no longer available. If you’re looking for a simple browser-based Docker playground, you can use LabSpaces instead. It will spin up environments instantly and experiment with Docker without installing anything locally. @docker.com

In case you missed it, I wrote a new blog about Docker Compose profiles and how they let you enable or disable services based on what you actually need. Check it out: dev.to/pradumnasara...

Using Profiles with Docker Compose

Most applications don’t need all Docker Compose services running all the time with the core...

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If you are repeating the same config and environment variables across multiple Docker Compose files, use YAML anchors. You can define the config once and reuse it everywhere. This keeps your compose files cleaner, easier to update, and more maintainable. @docker.com

Check out my new blog on Docker Compose profiles and how they let you enable or disable services based on what you actually need: dev.to/pradumnasara... @docker.com

Using Profiles with Docker Compose

In this setup, the backend, frontend, and database form the core of the application and are started...

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I'll write a short blog on Docker Compose profiles and publish it soon!

Pradumna Saraf@pradumnasaraf.dev · 7mo ago

Did you know Docker Compose has profiles? You can keep heavy services like Prometheus and Grafana turned off by default, and only start them when you actually need monitoring. You can start them by running: docker compose --profile monitoring up @docker.com

I'll write a short blog and publish it soon!

Pradumna Saraf@pradumnasaraf.dev · 7mo ago

Did you know Docker Compose has profiles? You can keep heavy services like Prometheus and Grafana turned off by default, and only start them when you actually need monitoring. You can start them by running: docker compose --profile monitoring up @docker.com

Being too rigid with tools can hold developers back from better solutions.

Did you know Docker Compose has profiles? You can keep heavy services like Prometheus and Grafana turned off by default, and only start them when you actually need monitoring. You can start them by running: docker compose --profile monitoring up @docker.com

Check out my new blog on container security using Docker Hardened Images. I explain what they are, why they matter, and how they help reduce security risks in containers with a simple demo. dev.to/pradumnasara... @docker.com

Improving Container Security with Docker Hardened Images

Container security remains a significant concern. Base images are bloated and contain unnecessary/or...

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