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Your code is already on the Pod. Build the image there.

Blog post from RunPod

Post Details
Company
Date Published
Author
November 9, 2026
Word Count
1,795
Company Posts That Month
8
Language
English
Hacker News Points
-
Post removed?
No
Summary

Runpod Weld is an alpha, experimental tool that enables users to build and push container images directly from a Runpod Pod using source files and a Dockerfile, without installing or operating a Docker daemon, though it cannot run containers itself. Users can start from a preconfigured Runpod template or manually install Weld on supported Linux amd64 systems, verify their environment with diagnostic commands, manage storage and optional persistent caches, and build images that are stored separately from Docker’s local image store. The walkthrough demonstrates packaging a simple HTML site with a Dockerfile, authenticating to Docker Hub, building and pushing an image, then deploying it on a CPU Pod with an exposed HTTP port or running it on a compatible local Docker host. Weld supports only a subset of Dockerfile features, including Linux amd64 targets, shell-based RUN steps, limited syntax directives, static stage references, and restricted mounts, so users should review compatibility constraints and use trusted Dockerfiles because build commands execute on the Pod. As the project is still developing and builds may be slower or fail for some Dockerfiles, users are encouraged to report reproducible issues on GitHub with diagnostic output while removing secrets and tokens.

Trends Found in this Post
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