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coder/examples/templates/docker-devcontainer/README.md
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Mathias Fredriksson 7d412c2272 feat(examples/templates): add docker-devcontainer template and rename envbuilder template (#18741)
This change adds a new `docker-devcontainer` template which allows you
to provision a workspace running in Docker, that also creates workspaces
via Docker running inside (DinD).

- **chore(examples/templates): rename `docker-devcontainer` to
`docker-envbuilder`**
- **feat(examples/templates): add `docker-devcontainer` example
template**
2025-07-03 15:50:08 +03:00

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---
display_name: Docker-in-Docker Dev Containers
description: Provision Docker containers as Coder workspaces running Dev Containers via Docker-in-Docker.
icon: ../../../site/static/icon/docker.png
maintainer_github: coder
verified: true
tags: [docker, container, devcontainer]
---
# Remote Development on Dev Containers
Provision Docker containers as [Coder workspaces](https://coder.com/docs/workspaces) running [Dev Containers](https://code.visualstudio.com/docs/devcontainers/containers) via Docker-in-Docker.
<!-- TODO: Add screenshot -->
## Prerequisites
### Infrastructure
The VM you run Coder on must have a running Docker socket and the `coder` user must be added to the Docker group:
```sh
# Add coder user to Docker group
sudo adduser coder docker
# Restart Coder server
sudo systemctl restart coder
# Test Docker
sudo -u coder docker ps
```
## Architecture
This example uses the `codercom/enterprise-node:ubuntu` Docker image as a base image for the workspace. It includes necessary tools like Docker and Node.js, which are required for running Dev Containers via the `@devcontainers/cli` tool.
This template provisions the following resources:
- Docker image (built by Docker socket and kept locally)
- Docker container (ephemeral)
- Docker volume (persistent on `/home/coder`)
- Docker volume (persistent on `/var/lib/docker`)
This means, when the workspace restarts, any tools or files outside of the home directory or docker library are not persisted.
For devcontainers running inside the workspace, data persistence is dependent on each projects `devcontainer.json` configuration.
> **Note**
> This template is designed to be a starting point! Edit the Terraform to extend the template to support your use case.