Pradumna Saraf

@pradumnasaraf.dev

238 Followers 8 Following

Open Source Developer | Docker Captain | Microsoft MVP | DevOps | Owner @rebasemedia All my links: https://links.pradumnasaraf.dev

Docker Compose example showing how to use `post_start` to run a command after a container starts, with a YAML snippet that changes ownership of the `/app/uploads` directory.
A screenshot of a bash shell script displaying code and command-line interface elements.
A person wearing a captain's hat smiles at the camera. Text reads "Docker Captain 2026" with Docker logo and message about being awarded another year as Docker Captain.
Screenshot of an article titled "Run AI Coding Agents Safely with Docker Sandboxes" showing an illustrated banner with Docker and technology icons.
A compose.yml file with example Docker Compose service configuration, including environment variables and default values with comments.
Image of a user running Claudecode with Docker model runner on a computer screen, showcasing the interface and code.
Screenshot of a Docker blog post titled "Trivy, KICS, and the shape of supply chain attacks so far in 2026," discussing supply chain security incidents and analysis.
Screenshot of Docker Docs page titled “Use OpenCode with Docker Model Runner,” showing a guide on connecting OpenCode to Docker Model Runner, with steps, prerequisites, and an acknowledgment crediting Pradumna Saraf.
Illustration of a compose.yml file showing a Docker Compose service named api using the image myapp with stop_grace_period: 20s configured.
A dark-themed Dockerfile code snippet compares an original and a hardened version. The original uses "FROM node: 24," and the hardened uses "FROM dhi.io/node: 24."
The code block window titled "compose.yml" shows YAML code for a Docker service. It features build context, Dockerfile, and cache settings.
A dark-themed code editor displays a `compose.yml` file, which defines three Docker Compose services: `api`, `worker`, and `scheduler`. All three services share the same configuration for `image: myapp:latest`, `restart: unless-stopped`, `volumes: - .:/app`, and environment variables `NODE_ENV: production` and `LOG_LEVEL: info`. Their unique commands are `npm run api`, `npm run worker`, and `npm run scheduler`, respectively. A large red 'X' graphic is prominently featured in the top right corner of the editor window.
Screenshot of a `compose.yml` file showing Docker Compose services with profiles. The `app` service runs by default, while `prometheus` and `grafana` services are configured with a `monitoring` profile and only run when that profile is enabled.
Blog editor showing the post “Improving Container Security with Docker Hardened Images,” featuring a Docker logo graphic, author avatar, and publish controls.
A screenshot of the Docker Hub website's "Hardened Images" page. The left sidebar shows user "pradumnasaraf" with navigation links like Repositories, Hardened Images (selected), Collaborations, Settings, Billing, and Usage. The main content area features a banner titled "Docker Hardened Images" with the text "Choose secure, minimal, production-ready images. They're free to use." and a "How it works" button. Below this are a search bar, a "Filter by" dropdown, and a "Make a request" button. The page then displays sections for "Recently added" hardened images (Time MCP Server, MongoDB MCP Server, Memory MCP Server, Docker Hub MCP Server, Grafana MCP Server, GitHub MCP Server) and "Featured" images and Helm charts, including Dart (a hardened image) and Traefik Helm chart.
Clear glass and blue acrylic MVP award with globe engraving. "Microsoft Most Valuable Professional 2025" text. Recognizes technical contributions.
GitHub pull request page showing a proposed change to introduction.md, adding "Akobir" to a list. The pull request is open and titled "Update introduction.md to include 'Akobir' #117".
A hand holds a blue book cover titled "Docker Kubernetes Security" by Mohammad-Ali A'râbi. The top left features the "DS DockerSecurity.io" logo and website, with "[v1.0.0]" on the top right. A white square with a plus sign is positioned between "Docker" and "Kubernetes" in the main title. Below, it details "Supply Chain Security + Runtime Protection" alongside a stylized white and light blue whale tail design. The author's name, "Mohammad-Ali A'râbi", is prominent at the bottom, with "Forewords by Hamida Rebai and Liran Tal" beneath it. A black keyboard is partially visible below the book, against a vibrant, blurred orange and red background.
An awards ceremony where a young man in a black "CAPTAIN SUMMIT" t-shirt and jeans accepts a blue plaque from a young woman, also in a "CAPTAIN SUMMIT" t-shirt and light jeans, who holds a microphone. Behind them, a projector screen displays "Congratulations!" and a photo of the man, identified as "Pradumna Saraf."
A clear glass plaque stands on a light wooden desk. Etched onto the glass are the words "Tip o' the Captain's Hat" above a circular emblem featuring a cartoon bird wearing a captain's hat, flanked by stylized wings. Below the emblem, the words "-docker- Captains" are etched. The background includes a light wall and a blurred dark monitor to the right.
A screenshot of a `compose.yml` configuration file displayed in a code editor. The file defines a `services` section with an `app` service that uses the `my-app` image and requires `llm` and `embedding-model`. Below this, a `models` section specifies `llm` as `ai/smollm2` and `embedding-model` as `ai/all-minilm`.
A webpage displaying a Docker blog post titled "From the Captain's Chair: Pradumna Saraf." The main image in the blog post is a selfie-style shot from a cable car, showing the top of a person's head in the foreground, with lush green mountains, cable lines, and other cable car cabins in the background under a cloudy sky.
Displays a YAML file titled 'compose.yml.' It specifies version '3.9' with a red X, and details services for an Nginx web server, including image, ports, and volumes. The background is a gradient neutral tone.
A dark, stylized terminal window with rounded corners, centered on a light brown background. Inside the terminal, the white text "docker compose build" is displayed. At the top of the terminal, there are three gray window control dots on the left and the word "bash" in the center.
A white background displaying the bold text "Hey there!, It's Pradumna Saraf" centered at the top. Below this, smaller text reads "Connect with me:", followed by five social media icons: Twitter (blue bird), LinkedIn (blue "in"), Facebook (blue "f"), Instagram (orange-pink gradient camera), and GitHub (black octocat).
Screenshot of a newsletter editor interface. The title "Title" is visible, along with a subtitle field containing "Pradumna Saraf". The body of the newsletter begins with "Hola. Welcome, welcome to the 4th edition...". Editor tools and buttons for preview and continuation are also visible.
Screenshot of a `compose.yml` file. The file defines a service called `saraf-ai`, which is built from a Dockerfile located in the context directory. It exposes port 3000 and specifies that the `llm` model should be run using the `ai/smollm2` Docker image. A commented-out section indicates further model configurations are possible.
A screenshot of a blog post being edited in a content management system (CMS). The post is titled "Running AI Models with Docker Compose" by Pradumna Saraf. The header image features the title and an illustration of a gray octopus juggling blue containers next to the blue Docker whale logo. Below the header, the article's introductory text is visible. The CMS interface shows a blue "Publish" button in the top-right corner.
A man, Pradumna Saraf, stands at a podium on a stage, giving a presentation at a tech conference. A large screen behind him displays a slide with the heading "$ whoami". The slide includes his profile picture, his name, and a bulleted list describing him as an "Open Source Developer/DevRel," "Docker Captain," and someone who "Create[s] Content." Vertical banners on stage feature logos for "KubeCon" and "CloudNativeCon India 2025." The stage is also set with several white armchairs, and the backs of audience members' heads are visible in the foreground.
Screenshot of the Docker Desktop application interface, showing the Containers section. The main view displays a list of running containers, including 'devops' and 'server', along with details such as Container ID, Image, Port(s), CPU usage (0.02%), Last started time, and action buttons (Stop, More options, Delete). The interface also shows overall Container CPU and Memory usage statistics (0.01% and 361.6MB respectively), a search bar, and a toggle to show only running containers. Below the container list, there is a 'Walkthroughs' section featuring cards for 'Multi-container applications' and 'Containerize your application'.
A man stands on a stage with a laptop at a podium, in front of a large screen displaying a colourful abstract image. A smaller screen is visible to the left. The podium has a sign for KubeCon CloudNativeCon China 2025.
Screenshot of a web page for the Docker community, featuring a list of stories and articles about Docker technology with filters for sorting by relevance, date, and popularity, along with sidebars for submission guidelines, information about Docker, and active discussions
Circular badge for KubeCon + CloudNativeCon China 2025 Speaker. Features the KubeCon and CloudNativeCon logos, a cityscape background, and prominent text "SPEAKER 2025". The outer ring reads "KubeCon + CloudNativeCon China 2025" and "Cloud Native Computing Foundation"
An image with the name Jane Smith and text "Sailing strong since 2024" above a cartoon seagull wearing a captain's hat and a smiling young man. Below is the text "Aye Captain! Congrats on another year leading the Docker fleet!" and the Docker logo.
An email marked as spam or phishing with the subject "Commercial offer". The email text offers a suitable vacancy based on the recipient's GitHub and asks to book a 10-minute call via a Calendly link (partially redacted). It is signed by the Marketing Department (details redacted).
A screenshot of the GitHub repository page for Pradumnasaraf/KuReDoPoGo. The page shows the code view, a description stating it's a backend API service using Golang, Gin, Redis, and Postgres, deployed on Kubernetes, and a list of files and directories.
A graphical thumbnail banner with the text "Run MCP Servers In Seconds With Docker". It features two logos: a stylized 'm' or waves on a dark blue circle and the blue Docker whale on a white circle. Below the text is a profile picture and the name PRADUMNA SARAF. The URL blog.pradumnasaraf.dev is in the top right corner.
A screenshot of the LinkedIn profile page for Pradumna Saraf. The page includes his profile picture, banner image featuring tech logos (like Kubernetes, Docker, and Go) and a person presenting, his name, verified status, headline (Open Source Developer, Developer Advocate, Docker Captain), location (Patna, Bihar, India), and follower count (15,231 followers, 500+ connections).
Webpage featuring the Open Source Initiative logo and the article title "I Owe Everything To Open Source: Pradumna Saraf's Journey
A personal portfolio website showing Pradumna Saraf. The site displays social media links (Github, Twitter, Linkedin), a brief introduction including their title ("Open Source Developer/DevRel, Docker Captain, Owner @ rebase media") and links to "Let's Collaborate" and "My Services." A professional headshot of Pradumna Saraf is also visible. The website's top navigation includes links for Services, Newsletter, Blog, Timeline, Toolkit, Camera, CV and Contact.
Diagram representing Abraham Wald's survivor bias analysis during WWII. The red dots show bullet holes on returning bombers, leading to the counterintuitive conclusion that armor should be added where planes *weren't* hit, as those were the areas that led to crashes.
Image displaying the title of an article: "MCP, LLMs, and the Docker Model Runner - The Open Letter, Edition #3". The article can be found at Pradumnasaraf.substack.com.
Screenshot of an email editing interface. The email title is "MCP, Models, and the Docker Shift – The Open Letter, Edition #3". The author, "Pradumna Saraf", has been added, and the email is in "Draft - Saved" state. Editing tools and preview/continue buttons are visible.
The image is a blog post cover with the title "Docker Can Run LLMs Locally—Wait, What!?" written in a large, white, bold font. A blue Docker whale logo is positioned on the right side of the title. The upper right corner displays the blog's URL: "blog.pradumnasaraf.dev". Below the title and logo, there is the name "PRADUMNA SARAF" with a circular profile picture. At the very bottom, it repeats the title and displays the author's name again, along with the date "Apr 1, 2025", and an estimated reading time of "6 min read". The background is dark.
GitHub advisory page detailing an authorization bypass vulnerability in Next.js middleware, including affected versions, patches, impact, workaround instructions, credits, and metadata.
Docker documentation guide for containerizing Deno applications. Steps cover containerization, local development, CI/CD pipeline configuration (GitHub Actions), and Kubernetes deployment. Prerequisites include basic JavaScript knowledge and familiarity with Docker concepts.