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fix(docker) fix project-in-project duplication
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‎.github/workflows/build.yml‎

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name: Publish E2B Templates
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on:
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workflow_dispatch:
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push:
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branches: [ main, master ]
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paths:
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- 'sandbox/**/e2b.Dockerfile'
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- 'sandbox/**/e2b.toml'
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- 'sandbox/**/compile_page.sh'
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- 'sandbox/scripts/**'
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- 'sandbox/.github/workflows/publish.yml'
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concurrency:
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group: publish-templates-${{ github.ref }}
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cancel-in-progress: true
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jobs:
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publish:
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runs-on: ubuntu-latest
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permissions:
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contents: read
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Setup Node.js
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uses: actions/setup-node@v4
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with:
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node-version: 20
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- name: Install E2B CLI
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run: npm i -g e2b
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- name: Build & Publish All Templates
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env:
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E2B_API_KEY: ${{ secrets.E2B_API_KEY }}
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working-directory: sandbox
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run: |
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node node ./scripts/build-and-publish.mjs --mode build

‎.github/workflows/publish.yml‎

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name: Publish E2B Templates
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on:
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workflow_dispatch:
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push:
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branches: [ main, master ]
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paths:
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- 'sandbox/**/e2b.Dockerfile'
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- 'sandbox/**/e2b.toml'
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- 'sandbox/**/compile_page.sh'
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- 'sandbox/scripts/**'
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- 'sandbox/.github/workflows/publish.yml'
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concurrency:
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group: publish-templates-${{ github.ref }}
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cancel-in-progress: true
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jobs:
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publish:
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runs-on: ubuntu-latest
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permissions:
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contents: read
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Setup Node.js
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uses: actions/setup-node@v4
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with:
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node-version: 20
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- name: Install E2B CLI
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run: npm i -g e2b
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- name: Build & Publish All Templates
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env:
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E2B_API_KEY: ${{ secrets.E2B_API_KEY }}
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working-directory: sandbox
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run: |
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node node ./scripts/build-and-publish.mjs --mode publish

‎README.md‎

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# Sandbox templates
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# Code0 Sandbox Templates (standalone)
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This repo contains E2B sandbox templates used by the app to spin up ephemeral environments for each project.
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Standalone E2B sandbox templates used by the Code0 app to spin up ephemeral environments per project.
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## Structure
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- `nextjs/`
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- `e2b.Dockerfile` — Docker build for the template image
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- `e2b.toml` — Template metadata (team, name/ID, start command)
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- `compile_page.sh` — Start script executed inside the sandbox (path: `/compile_page.sh`)
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Once published, the app can create sandboxes in E2B Cloud (no local Docker required at runtime).
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## Requirements
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- E2B account + API key (E2B_API_KEY)
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- Docker Desktop (only needed to build/publish templates)
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- Node.js (to run the E2B CLI via npx or global install)
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## Templates
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- `nextjs-shadcn` — Next.js 15 + shadcn/ui baseline.
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- `nextjs-radixui` — Next.js 15 + Radix UI baseline.
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Once a template is published, the app can create sandboxes from E2B Cloud without Docker running locally.
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Each template folder contains:
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- `e2b.Dockerfile` — how the template image is built.
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- `e2b.toml` — template metadata (team, name/ID, CPU/RAM, start command).
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- `compile_page.sh` — start script executed inside the sandbox at `/compile_page.sh`.
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## Configure env (root .env)
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Set one of (ID is preferred):
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## Prerequisites
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- E2B account + API key (`E2B_API_KEY`).
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- E2B CLI (use `npx e2b@latest` or install globally with `npm i -g e2b`).
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- Docker Desktop (for building/publishing templates).
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- Node.js (to run scripts in this repo).
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## Configure (env)
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Set your API key before building/publishing:
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PowerShell
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```
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$env:E2B_API_KEY = "<your_e2b_api_key>"
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```
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In the app that consumes templates, set one of (ID is preferred):
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- `E2B_TEMPLATE_ID=<template_id>`
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- or `E2B_TEMPLATE_NAME=<template_name>`
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- or `E2B_TEMPLATE=<template_name>`
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Also set `E2B_API_KEY=<your_key>`.
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Sandbox names are derived from each project’s name automatically.
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Sandbox names are typically derived from each project’s name.
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## Build & publish
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Windows PowerShell examples:
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## Build & publish (per template)
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PowerShell examples:
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- Using npx (no install):
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Using npx (no global install):
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```
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$env:E2B_API_KEY = "<your_e2b_api_key>"
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cd sandbox\nextjs
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cd .\nextjs-shadcn\
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npx e2b@latest template build
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npx e2b@latest template publish
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cd ..\nextjs-radixui\
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npx e2b@latest template build
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npx e2b@latest templates publish
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npx e2b@latest template publish
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```
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- Or global install:
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Or with global CLI:
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```
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npm i -g e2b
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$env:E2B_API_KEY = "<your_e2b_api_key>"
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cd sandbox\nextjs
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e2b template build
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e2b templates publish
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cd .\nextjs-shadcn\ ; e2b template build ; e2b template publish
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cd ..\nextjs-radixui\ ; e2b template build ; e2b template publish
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```
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After publishing, the CLI prints the `template_id`. Use that in your app `.env` as `E2B_TEMPLATE_ID`.
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## Build & publish all templates (script)
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This repo includes a helper script to build/publish every template under this folder:
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```
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node ./scripts/build-and-publish.mjs # build + publish all
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node ./scripts/build-and-publish.mjs --mode build # build only
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node ./scripts/build-and-publish.mjs --mode publish # publish only
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```
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Requirements: E2B CLI available on PATH (use `npx e2b@latest` or global `e2b`). On Windows, the script spawns with shell support.
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## Resource configuration
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You can set CPU/RAM per template in `e2b.toml`:
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```
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cpu_count = 8
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memory_mb = 8192
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```
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Or override at build time:
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```
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e2b template build --cpu-count 8 --memory-mb 8192
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```
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After publishing, copy the `template_id` from the CLI output and put it in `.env` as `E2B_TEMPLATE_ID`.
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## Start command & script path
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- `e2b.toml`: `start_cmd = "/compile_page.sh"`
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- `e2b.Dockerfile` copies and makes it executable:
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- `e2b.toml` sets: `start_cmd = "/compile_page.sh"`
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- `e2b.Dockerfile` ensures the script exists and is executable:
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- `COPY compile_page.sh /compile_page.sh`
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- `RUN chmod +x /compile_page.sh`
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Update both if you rename or move the script.
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Always use the absolute path (`/compile_page.sh`) and LF line endings inside the image.
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## CI/CD (GitHub Actions example)
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```
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name: Publish E2B Templates
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on:
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workflow_dispatch:
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push:
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branches: [ main ]
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jobs:
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publish:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- uses: actions/setup-node@v4
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with:
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node-version: 20
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- name: Install E2B CLI
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run: npm i -g e2b
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- name: Build & Publish All Templates
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env:
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E2B_API_KEY: ${{ secrets.E2B_API_KEY }}
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run: |
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cd sandbox
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node ./scripts/build-and-publish.mjs
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```
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## Troubleshooting
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- Docker daemon not running: start Docker Desktop; WSL2 & Linux containers enabled. Test with `docker version` and `docker run hello-world`.
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- Script not found / exit 127: ensure `start_cmd` uses the absolute path and the script has LF line endings on Windows.
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- Template 404: ensure the template exists in your E2B team and `.env` points to the correct ID/name.
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- Docker daemon not running: start Docker Desktop; WSL2 & Linux containers enabled. Verify with `docker version` and `docker run hello-world`.
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- Exit 127 / script not found: ensure `start_cmd` is absolute and the script has executable bit and LF line endings.
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- Template 404: ensure the template exists in the correct E2B team and you’re using the right `template_id` or name.
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- Nested app folder: both Dockerfiles build in `/tmp/app` and copy to `/home/user` to avoid `nextjs-app` nesting.
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## Security & license
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See `SECURITY.md` and `LICENSE`.

‎nextjs-radixui/e2b.Dockerfile‎

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@@ -7,8 +7,8 @@ RUN apt-get update && apt-get install -y curl && apt-get clean && rm -rf /var/li
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COPY compile_page.sh /compile_page.sh
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RUN chmod +x /compile_page.sh
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# Install dependencies and customize sandbox
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WORKDIR /home/user/nextjs-app
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# Install dependencies and customize sandbox in a temp directory
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WORKDIR /tmp/app
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# Create a fresh Next.js app (non-interactive)
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RUN npx --yes create-next-app@15.3.3 . --yes
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@radix-ui/react-toggle-group \
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@radix-ui/react-tooltip
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# Move the Next.js app to the home directory and remove the temp directory
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RUN mv /home/user/nextjs-app/* /home/user/ && rm -rf /home/user/nextjs-app
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# Copy everything (including dotfiles) to /home/user and remove temp dir to avoid nesting
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RUN mkdir -p /home/user \
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&& cp -a /tmp/app/. /home/user/ \
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&& rm -rf /tmp/app

‎nextjs-shadcn/e2b.Dockerfile‎

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COPY compile_page.sh /compile_page.sh
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RUN chmod +x /compile_page.sh
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# Install dependencies and customize sandbox
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WORKDIR /home/user/nextjs-app
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# Install dependencies and customize sandbox in a temp directory
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WORKDIR /tmp/app
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RUN npx --yes create-next-app@15.3.3 . --yes
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RUN npx --yes shadcn@2.6.3 init --yes -b neutral --force
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RUN npx --yes shadcn@2.6.3 add --all --yes
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# Move the Nextjs app to the home directory and remove the nextjs-app directory
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RUN mv /home/user/nextjs-app/* /home/user/ && rm -rf /home/user/nextjs-app
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# Copy everything (including dotfiles) to /home/user and remove temp dir to avoid nesting
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RUN mkdir -p /home/user \
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&& cp -a /tmp/app/. /home/user/ \
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&& rm -rf /tmp/app

‎scripts/build-and-publish.mjs‎

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#!/usr/bin/env node
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import { readdirSync, statSync } from 'node:fs';
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import { join } from 'node:path';
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import { spawn } from 'node:child_process';
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function run(cmd, args, cwd) {
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return new Promise((resolve, reject) => {
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const child = spawn(cmd, args, { cwd, stdio: 'inherit', shell: process.platform === 'win32' });
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child.on('close', (code) => {
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if (code === 0) resolve();
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else reject(new Error(`${cmd} ${args.join(' ')} exited with ${code}`));
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});
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});
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}
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function findTemplates(root) {
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const entries = readdirSync(root, { withFileTypes: true });
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return entries
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.filter((e) => e.isDirectory())
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.map((e) => join(root, e.name))
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.filter((p) => {
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try {
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const dockerfile = statSync(join(p, 'e2b.Dockerfile'));
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const toml = statSync(join(p, 'e2b.toml'));
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return dockerfile.isFile() && toml.isFile();
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} catch {
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return false;
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}
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});
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}
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async function main() {
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const args = process.argv.slice(2);
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const modeIdx = args.indexOf('--mode');
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const mode = modeIdx >= 0 ? (args[modeIdx + 1] || '').toLowerCase() : '';
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const root = join(process.cwd());
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const sandboxDir = join(root, 'sandbox');
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const templates = findTemplates(sandboxDir);
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if (templates.length === 0) {
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console.error('No templates found in sandbox/*');
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process.exit(1);
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}
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console.log(`Found ${templates.length} template(s):`);
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for (const t of templates) console.log('-', t);
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for (const t of templates) {
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if (!mode || mode === 'build' || mode === 'all') {
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console.log(`\n=== Building: ${t} ===`);
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await run('e2b', ['template', 'build'], t);
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}
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if (!mode || mode === 'publish' || mode === 'all' || mode === '') {
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console.log(`\n=== Publishing: ${t} ===`);
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await run('e2b', ['template', 'publish'], t);
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}
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}
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console.log('\nDone.');
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}
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main().catch((err) => {
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console.error(err);
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process.exit(1);
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});

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