f4cf8056e9
Remove webui from architecture, commands, and security table. Update auth option 3 to reference ~/.claude instead of claude-config volume. Drop stale registry path comment and web interface section. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
140 lines
5.1 KiB
Markdown
140 lines
5.1 KiB
Markdown
# docker-claude
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Runs [Claude Code](https://claude.ai/code) inside an isolated Docker environment with a proxy sidecar for controlled egress. Claude cannot access the host filesystem or network directly.
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## Architecture
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```
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┌──────────────────────────────────────────────────────────┐
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│ Host machine │
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│ │
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│ claude.sh (control script) │
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│ │ │
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│ ▼ │
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│ ┌──────────────────────────────────────────────────┐ │
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│ │ Docker: claude-secure │ │
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│ │ │ │
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│ │ ┌─────────────┐ claude-internal │ │
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│ │ │ claude │ (internal: true) │ │
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│ │ │ (UID 1000) │──────────────► ┌──────────┐ │ │
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│ │ └─────────────┘ │ proxy │ │ │
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│ │ │ (UID 13) │ │ │
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│ │ └────┬─────┘ │ │
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│ │ proxy-external │ │
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│ └──────────────────────────────────────────────────┘ │
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│ │ │
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│ ▼ │
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│ internet (allowlisted) │
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└──────────────────────────────────────────────────────────┘
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```
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- **`claude`** — Claude Code CLI (`node:20-alpine`), runs as the built-in `node` user (UID 1000), on `claude-internal` only
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- **`proxy`** — Squid forward proxy (`alpine:3.21`), bridges `claude-internal` ↔ internet with egress allowlist
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- **`claude-internal`** — `internal: true`; no default gateway, containers cannot reach the internet directly
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- **`proxy-external`** — Standard bridge; proxy sidecar only
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## Prerequisites
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- Docker Engine 24+
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- Docker Compose v2 plugin (`docker compose version`)
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## Setup
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```bash
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# 1. Clone / copy this repo
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git clone <repo> docker-claude && cd docker-claude
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# 2. Configure credentials (see Authentication below)
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cp .env.example .env
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$EDITOR .env
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# 3. Make the control script executable
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chmod +x claude.sh
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```
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## Authentication
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Three options — pick one and set it in `.env`:
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### Option 1 — API key
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```bash
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ANTHROPIC_API_KEY=sk-ant-...
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```
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### Option 2 — OAuth token (subscription, headless-friendly)
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Run this **on your host** (not inside the container) to generate a 1-year token:
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```bash
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claude setup-token
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```
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Then set the printed token in `.env`:
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```bash
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CLAUDE_CODE_OAUTH_TOKEN=...
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```
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### Option 3 — Browser OAuth (interactive)
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Leave both keys unset. On first run, Claude Code will print a login URL.
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Port 54545 must be reachable from your browser for the OAuth callback:
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```bash
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sbx ports <sandbox-name> --publish 54545:54545/tcp
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```
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Then run `./claude.sh start` and follow the prompt. Credentials are stored in
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`~/.claude` on the host and reused on every subsequent run.
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## Usage
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```bash
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# Start proxy, pull latest images, launch Claude Code in the current directory
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cd ~/myproject
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./claude.sh start
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```
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### Other commands
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```bash
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./claude.sh stop # Stop and remove all containers
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./claude.sh update # Pull latest images from the registry
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./claude.sh logs # Tail proxy logs
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./claude.sh status # Show container status
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./claude.sh shell # Debug bash shell in the Claude container
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```
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### Building locally
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`build.sh` builds images from source using the local Dockerfiles:
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```bash
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./build.sh # build with layer cache
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./build.sh --no-cache # force full rebuild
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```
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## Egress allowlist
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Edit `proxy/squid.conf` and add domains to the `allowed_sites` ACL:
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```
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acl allowed_sites dstdomain api.anthropic.com
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acl allowed_sites dstdomain statsig.anthropic.com
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# acl allowed_sites dstdomain api.github.com
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# acl allowed_sites dstdomain registry.npmjs.org
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```
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Rebuild after changes:
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```bash
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./claude.sh stop && ./claude.sh start
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```
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## Security controls
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| Control | claude | proxy |
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|---|---|---|
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| Non-root user | UID 1000 (`node`, built into base image) | `squid` user |
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| `no-new-privileges` | yes | yes |
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| All capabilities dropped | yes | yes |
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| Direct internet access | no (`internal` network only) | allowlisted only |
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| Host filesystem | CWD mounted as `/workspace` | none |
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| Docker socket | not mounted | not mounted |
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