Create dev container

awesomerobot · November 18, 2023, 4:49pm

.devcontainer/devcontainer.json

main

{
  "name": "Discourse",
  "image": "docker.io/discourse/discourse_dev:20250930-0017",
  "workspaceMount": "source=${localWorkspaceFolder},target=/workspace/discourse,type=bind",
  "workspaceFolder": "/workspace/discourse",
  "postStartCommand": "./.devcontainer/scripts/start.rb",
  "forwardPorts": [
    9292, // bin/unicorn
    3000, // bin/rails s
    4200, // ember-cli
    8025, // mailhog
    9229  // chrome remote debug
  ],
  "remoteUser": "discourse",
  "remoteEnv": {
    "RAILS_DEVELOPMENT_HOSTS": ".app.github.dev",
    "PGUSER": "discourse",
    "SELENIUM_FORWARD_DEVTOOLS_TO_PORT": "9229",
  },
  "mounts": [

This file has been truncated. show original

I think this was added for github codespaces

Topic		Replies	Views
Developing Discourse using a Dev Container Developer Guides	8	17304	April 9, 2026
Plugin devcontainer config for GitHub Codespaces Development dev-install	0	75	August 29, 2025
(outdated) Guide to Setting Up Discourse Development Environment - GitHub Codespace Developers dev-install	8	951	November 14, 2024
Developing Discourse on GitHub Codespaces Developer Guides	14	1620	September 9, 2025
How to customize the Discourse app using docker container? Development	2	3336	November 8, 2018

Create dev container

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