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render-docker

Build and deploy Docker-based Render services using Dockerfile and registry credentials.

Updated Apr 14, 2026
Search Tags:#deployment#docker#registry#blueprint#render#buildkit
One-click install
npx skills add https://github.com/renderinc/render-codex-plugin --skill render-docker
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: render-docker
Source: https://github.com/renderinc/render-codex-plugin/tree/main/skills/render-docker
Command: npx skills add https://github.com/renderinc/render-codex-plugin --skill render-docker

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Render Docker deployments can be complex due to BuildKit, multi-stage builds, and private registries; this Skill provides a structured approach to defining, building, and deploying Docker-based services on Render.

Core Features & Use Cases

  • Build Docker images from a repo using Dockerfile, dockerContext, and dockerfilePath.
  • Use private registries with registryCredential to deploy images to Render compute services.
  • Support multi-stage builds, BuildKit optimizations, and runner vs image runtimes for flexible deployments.
  • Real-world use case: deploy a web service from a Git repository by building a Dockerfile and pushing to a private registry, then referencing image.url in render.yaml.

Quick Start

Create a Render web service that builds from your Dockerfile and runs the resulting image, using dockerContext, dockerfilePath, and registryCredential as needed.

Frequently Asked Questions about render-docker

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I deploy a Dockerized app to Render using a Dockerfile?▼

To deploy a Dockerized app on Render, configure your blueprint with the dockerfilePath and dockerContext fields to build the image from your repository. Render uses BuildKit to automate the build and deployment process across its compute services.

Can I use a private registry to deploy Docker images on Render?▼

Yes, you can deploy Docker images from a private registry on Render by defining the registryCredential field in your blueprint. You can then reference the image.url to deploy the stored image to your Render compute service.

Does Render support multi-stage builds and BuildKit optimizations?▼

Render supports multi-stage builds and BuildKit optimizations for Docker deployments. This allows you to structure flexible Dockerfiles that compile build artifacts in intermediate stages and deploy lightweight final images to Render.

What is the difference between docker and image runtimes on Render?▼

The docker runtime builds your service directly from a Dockerfile in your repository, while the image runtime deploys a pre-built image referenced via image.url. Both compute runtimes are supported for Dockerized deployments on Render.

How do I configure render.yaml for building Docker services?▼

You configure Docker services in render.yaml by specifying blueprint fields such as dockerfilePath, dockerContext, dockerCommand, and registryCredential. These fields direct Render to locate your Dockerfile, set the build context, and execute the build.

Why are my Render Docker deployments failing with private registries?▼

Render Docker deployments with private registries require correct registryCredential configuration in your blueprint. Ensure your registry credentials are properly authenticated and that your image.url accurately points to the private registry image location.

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