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feat: add universal image #307

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feat: add universal image
bpmct Aug 19, 2025
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bpmct Aug 19, 2025
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7 changes: 7 additions & 0 deletions images/universal/README.md
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# Example Universal Image

[![Docker Pulls](https://img.shields.io/docker/pulls/codercom/example-universal?label=codercom%2Fexample-universal)](https://hub.docker.com/r/codercom/example-universal)

## Description

Microsoft's [Universal Dev Container Image](https://github.com/devcontainers/images/tree/main/src/universal) extended with a `coder` user.
7 changes: 7 additions & 0 deletions images/universal/first-run-notice.txt
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Welcome to Coder! This environment is based on Microsoft's Dev Container Universal image
with a suite of common tools and languages (Python, Java, Node.js, Go, Rust, etc.)

➡️ https://github.com/devcontainers/images/tree/main/src/universal

To use another image, modify your devcontainer.json or your Coder Template.

24 changes: 24 additions & 0 deletions images/universal/ubuntu.Dockerfile
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FROM mcr.microsoft.com/devcontainers/universal:linux

USER root

COPY first-run-notice.txt /usr/local/etc/vscode-dev-containers/

# Remove Conda to avoid any license issues
RUN rm -R /opt/conda && \
rm /usr/local/etc/vscode-dev-containers/conda-notice.txt

# Install Chrome for AI Browser Testing
RUN yes | npx playwright install chrome

# Create `coder` user
RUN userdel -r codespace && \
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I think deluser leaves the user's home directory.

You should use userdel --remove-all-files --remove-home

I am not sure how this will behave with all installed tools from the base image though.

Or better rename the user and move over the existing home directory

RUN usermod -l coder codespace \
 && usermod -d /home/coder -m coder \
 && groupmod -n coder codespace

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I confirmed userdel doesn't keep the home folder!

Screenshot 2025-08-19 at 4 11 30 PM

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I will build and test before approving. Can do today.

useradd coder \
--create-home \
--shell=/bin/bash \
--groups=docker \
--uid=1000 \
--user-group && \
echo "coder ALL=(ALL) NOPASSWD:ALL" >>/etc/sudoers.d/nopasswd

USER coder
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