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https://github.com/coder/coder.git
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J. Scott Miller
1ed5c6f9df
## Problem
Launching the system Google Chrome from the portabledesktop/VNC session
in dogfood workspaces crashes immediately (SIGTRAP, exit 133). Headless
Chrome and Playwright's bundled Chromium are unaffected, so it only
shows up when a user opens Chrome in the desktop.
Root cause traced via `strace`: Chrome `dlopen`s `libX11-xcb.so.1` when
it initializes the X11 GUI path and `IMMEDIATE_CRASH()`es when the
library is missing:
```
openat(... "/usr/lib/x86_64-linux-gnu/libX11-xcb.so.1" ...) = -1 ENOENT
... --- SIGTRAP {si_signo=SIGTRAP, si_code=SI_KERNEL} ---
```
The Google Chrome `.deb` declares `libx11-6` and `libxcb1` but **not**
`libx11-xcb1`, so apt never installs it.
## Why it regressed (~2 weeks ago)
`libx11-xcb1` used to be pulled in transitively by the build-time step:
```
pnpm dlx playwright@1.47.0 install --with-deps chromium
```
`--with-deps` makes Playwright `apt-get install` Chromium's full
system-library set, which on Ubuntu includes `libx11-xcb1`.
#25448 ("refactor: build dogfood image as base + mise oci layers")
removed that build step from both Ubuntu Dockerfiles and moved the
install to the workspace-start `install-deps` script, which runs
`playwright install chromium` / `playwright-core install --no-shell
chromium` **without** `--with-deps`. Those download only the browser
binaries, not the apt system libraries, so `libx11-xcb1` disappeared
from the image.
## Fix
Install `libx11-xcb1` explicitly in both `ubuntu-22.04` and
`ubuntu-26.04` `Dockerfile.base` apt lists, decoupling desktop Chrome's
X libraries from the Playwright install so it can't silently regress
again.
## Testing
Reproduced and verified on a running dogfood workspace (Ubuntu 22.04):
before the fix, `DISPLAY=:1 google-chrome` crashed with SIGTRAP on the
missing `libX11-xcb.so.1`; after `apt-get install -y libx11-xcb1`, a
vanilla `google-chrome` launch (as the desktop menu invokes it) starts
and stays running with a renderer process. Remaining EGL/GPU warnings
are expected (software rendering under VNC) and non-fatal.
<details>
<summary>Investigation notes</summary>
- headless Chrome and `--screenshot` worked, isolating the failure to
the X11/Ozone GUI path.
- The earlier `crashpad ... format error / Unknown ptrace scope`
messages were a red herring; the real crash was the missing-library
`dlopen`.
- `portabledesktop` ships a self-contained Xvnc server + WM runtime (its
own glibc closure) and does not provide libraries to system apps like
Chrome, so the fix belongs in the dogfood image.
</details>
---
Generated with Coder Agents.
Coder is a self-hosted platform for cloud development environments and AI coding agents. Workspaces are defined with Terraform, connected through a secure Wireguard® tunnel, and automatically shut down when not used. Coder Agents runs a native AI coding agent whose loop executes in the control plane on your infrastructure, with no API keys in workspaces.
- Define cloud development environments in Terraform
- EC2 VMs, Kubernetes Pods, Docker Containers, etc.
- Automatically shutdown idle resources to save on costs
- Onboard developers in seconds instead of days
- Delegate coding work to AI agents on your infrastructure
- Bring any model (Anthropic, OpenAI, Google, Bedrock, self-hosted)
- No LLM credentials in workspaces, user identity on every action
- Centralized model governance, cost tracking, and audit logging
Quickstart
The most convenient way to try Coder is to install it on your local machine and experiment with provisioning cloud development environments using Docker (works on Linux, macOS, and Windows).
# First, install Coder
curl -L https://coder.com/install.sh | sh
# Start the Coder server (caches data in ~/.cache/coder)
coder server
# Navigate to http://localhost:3000 to create your initial user,
# create a Docker template and provision a workspace
Install
The easiest way to install Coder is to use the
install script for Linux
and macOS. For Windows, use the latest ..._installer.exe file from GitHub
Releases.
curl -L https://coder.com/install.sh | sh
You can run the install script with --dry-run to see the commands that will be used to install without executing them. Run the install script with --help for additional flags.
See install for additional methods.
Once installed, you can start a production deployment with a single command:
# Automatically sets up an external access URL on *.try.coder.app
coder server
# Requires a PostgreSQL instance (version 13 or higher) and external access URL
coder server --postgres-url <url> --access-url <url>
Use coder --help to get a list of flags and environment variables. See the install guides for a complete tutorial.
Documentation
Browse the documentation or visit a specific section below:
- Workspaces: Workspaces contain the IDEs, dependencies, and configuration information needed for software development
- Templates: Templates are written in Terraform and describe the infrastructure for workspaces
- Coder Agents: Delegate coding work to AI agents running on your self-hosted infrastructure
- Administration: Learn how to operate Coder
- Premium: Learn about paid features built for large teams
- IDEs: Connect your existing editor to a workspace
Support
Feel free to open an issue if you have questions, run into bugs, or have a feature request.
Join our Discord to provide feedback on in-progress features and chat with the community using Coder!
Integrations
New integrations are always in progress. Open an issue to request one. Contributions are welcome in any official or community repository.
Official
- Coder Registry: Templates, modules, and integrations for common development environments
- VS Code Extension: Open any Coder workspace in VS Code with a single click
- JetBrains Toolbox Plugin: Open any Coder workspace from JetBrains Toolbox with a single click
- JetBrains Gateway Plugin: Open any Coder workspace in JetBrains Gateway with a single click
- Dev Containers: Build development environments using
devcontainer.jsonon Docker, Kubernetes, and OpenShift - Kubernetes Log Stream: Stream Kubernetes Pod events to the Coder startup logs
- Self-Hosted VS Code Extension Marketplace: A private extension marketplace that works in restricted or airgapped networks integrating with code-server.
- GitHub Actions: An action to set up the Coder CLI in GitHub workflows
Community
- Community Templates: Community-contributed workspace templates in the Coder Registry
- Community Modules: Community-contributed modules to extend Coder templates
- Provision Coder with Terraform: Provision Coder on Google GKE, Azure AKS, AWS EKS, DigitalOcean DOKS, IBMCloud K8s, OVHCloud K8s, and Scaleway K8s Kapsule with Terraform
- Coder Template GitHub Action: A GitHub Action that updates Coder templates
- Discord: Chat with the community and provide feedback on in-progress features
Contributing
New contributors are always welcome. If you are new to the Coder codebase, see the contribution guide to get started.
Hiring
Apply on the careers page if you are interested in joining the team.