# claude-bottle [](https://gitea.dideric.is/didericis/claude-bottle/actions?workflow=test.yml) Run multiple Claude Code agents on your own machine, each scoped to its own secrets, skills, and egress allowlist. ## Why "claude-bottle"? Each container is a bottle; Claude is the genie inside. The genie's powers are exactly what the manifest grants it — a specific set of skills, a specific set of secrets, and a specific set of hosts it can reach — nothing more. You uncork one bottle per agent (`./cli.py start `), many bottles run in parallel, and each is scoped to its task. When the session ends the bottle is destroyed and the genie does not persist. ## Goals - Scope each agent to the minimum credentials and network egress its task actually needs - Run multiple agents in parallel, isolated from each other - Keep code, credentials, and agent activity on infrastructure I control — no third-party agent runtime ## Security model Each agent runs in its own bottle: its own container, its own internal Docker network, and its own pipelock sidecar. Bottles don't share state, don't talk to each other, and only get the env vars, skills, SSH identities, and egress hosts the manifest grants them — nothing more. Any one agent only has the access it needs to do its job. The bottle limits both what an agent can see and where it can send it. Each bottle gets only the secrets and SSH identities the manifest grants it — a Gitea token but not a GitHub token, a deploy key but not a personal SSH key — so even a compromised or misbehaving agent only handles credentials it was already trusted with for its job. Egress flows through pipelock, which constrains where those credentials can travel: an agent with a Gitea token can reach `gitea.dideric.is`, not arbitrary attacker-controlled hosts. The same constraint blocks DNS-over-HTTPS as an exfil channel — a DoH resolver like `cloudflare-dns.com` would have to be on the allowlist for the agent to reach it at all. The container itself adds a layer between the agent and the host, but the v1 design leans more on secret minimization and egress allowlisting than on the container as a hardened boundary. On Linux hosts where [gVisor](https://gvisor.dev/) is registered with Docker, claude-bottle auto-detects it and launches every bottle under `runsc` for a userspace syscall barrier — no manifest configuration required. The broader v2 discussion lives in `docs/research/stronger-isolation-alternatives.md`. The egress proxy and OAuth-token handling below are the load-bearing pieces of v1. ## Architecture A bottle is the agent container plus up to three per-protocol egress sidecars on a per-agent Docker `--internal` network. The agent has no default route off-box; its only way out is through the pipelock sidecar (for HTTP/HTTPS), the ssh-gate sidecar (for SSH), or the git-gate sidecar (for `git push`). Each sidecar also sits on an egress network that does have internet access, so the agent's traffic always passes through a container that enforces the manifest before it leaves the host. ``` host ( ./cli.py ) │ starts │ stops ▼ ┌─────────────────────────── bottle ──────────────────────────┐ │ │ │ ┌──────────────────┐ │ │ │ agent image │ HTTPS_PROXY ┌────────────────┐ │ HTTPS to │ │ (claude-code, │ ───────────────► │ pipelock image │──┼──► allowlisted │ │ built locally) │ │ (TLS bump, DLP,│ │ hosts │ │ │ │ allowlist) │ │ │ │ skills, env, │ └────────────────┘ │ │ │ ~/.ssh/config, │ │ │ │ ~/.gitconfig │ ssh ┌────────────────┐ │ TCP to │ │ │ ───────────────► │ socat/ssh image│──┼──► bottle.ssh │ │ │ │ (alpine/socat, │ │ upstreams │ │ │ │ L4 forwarder) │ │ │ │ │ └────────────────┘ │ │ │ │ │ │ │ │ git push ┌────────────────┐ │ SSH (push) │ │ │ ───────────────► │ git-gate image │──┼──► to bottle.git │ │ │ │ (gitleaks + │ │ upstreams │ │ │ │ git daemon) │ │ │ └──────────────────┘ └────────────────┘ │ │ │ │ agent on internal network (no default route); │ │ sidecars also attached to an egress network. │ └─────────────────────────────────────────────────────────────┘ ``` - **agent image** — built from the repo `Dockerfile` (`node:22-slim` base) on first run; runs `claude` with the manifest-granted skills, env vars, `~/.ssh/config`, and `~/.gitconfig` (the latter for the git-gate's `pushInsteadOf` rules when `bottle.git` is set). - **pipelock image** — per-agent sidecar. Terminates the agent's outbound HTTP/HTTPS, enforces the resolved allowlist, runs DLP scanning. Design in `docs/prds/0001-per-agent-egress-proxy-via-pipelock.md` and `docs/prds/0006-pipelock-tls-interception.md`. - **socat/ssh image** — per-agent sidecar built on `alpine/socat`. One container, one socat listener per `bottle.ssh` entry, each forwarding TCP to the upstream `Hostname:Port`. SSH does *not* go through pipelock. Design in `docs/prds/0007-ssh-egress-gate.md`. - **git-gate image** — per-agent sidecar built on `zricethezav/gitleaks` (alpine + gitleaks + git-daemon + openssh-client). Runs `git daemon --enable=receive-pack` so the agent can push to it via `git://`; a pre-receive hook gitleaks-scans each incoming ref and forwards clean refs to the real upstream over SSH using a credential the agent never sees. Brought up only when `bottle.git` has entries. Design in `docs/prds/0008-git-gate.md`. When the agent exits, `cli.py` tears down every sidecar that was brought up and the two networks; nothing about a bottle persists between runs. ## Quickstart Requires Docker on the host and a long-lived Claude Code OAuth token in your shell env. ```sh ./cli.py start # builds the image on first run, drops you into claude ``` The container is removed automatically when the session ends. If the script is killed with SIGKILL the exit trap won't fire and the container may be left running; remove it with `docker rm -f `. ## Manifest Agents and the bottles they run in are declared in `claude-bottle.json` in your project root or `$HOME` (both files merge if present, with project entries overriding home entries on key conflict). ```jsonc { "bottles": { "gitea-dev": { "env": { "GITEA_TOKEN": "?paste your Gitea API token", "GITHUB_TOKEN": "${GH_PAT}", "GIT_AUTHOR_NAME": "didericis" }, "ssh": [ { "Host": "gitea", "Hostname": "gitea.dideric.is", "User": "git", "Port": 30009, "IdentityFile": "/Users/didericis/.ssh/id_ed25519_gitea", "KnownHostKey": "gitea.dideric.is ssh-ed25519 AAAA..." } ], // Egress is forced through a per-agent // [pipelock](https://github.com/luckyPipewrench/pipelock) sidecar // on a Docker `--internal` network — without the proxy the agent // has no route off-box. The effective allowlist is the union of // baked-in defaults (api.anthropic.com, claude.ai, ...) and the // hostnames listed here. Pipelock also runs DLP scanning and // detects URL-embedded high-entropy secrets. The resolved // allowlist is shown in the y/N preflight before launch. "egress": { "allowlist": [ "github.com", "registry.npmjs.org", "pypi.org" ] } } }, "agents": { "gitea-helper": { "bottle": "gitea-dev", "skills": ["init-prd"], "prompt": "You help maintain Gitea-hosted projects." } } } ``` Comments are illustrative; the file itself must be valid JSON. See `claude-bottle.example.json` for a working starting point. Pipelock's design lives in `docs/prds/0001-per-agent-egress-proxy-via-pipelock.md` and the rationale in `docs/research/pipelock-assessment.md`. ## Auth: OAuth token, not API key claude-bottle authenticates `claude` inside the container with the same Pro/Max subscription you already use on the host, via a long-lived OAuth token. No `ANTHROPIC_API_KEY` is needed. **Why a token instead of mounting `~/.claude.json`:** on macOS, Claude Code stores OAuth credentials in the encrypted Keychain, not in `~/.claude.json`. Mounting that file into a Linux container does not carry the credentials with it. Linux hosts keep credentials in `~/.claude/.credentials.json`, but to keep the launcher portable claude-bottle uses the env-var path on every host. **One-time setup on the host:** ```sh claude setup-token # browser login, prints a ~1-year OAuth token ``` Stash the token in your shell env (e.g. `~/.zshrc` or a secret manager) as `CLAUDE_BOTTLE_OAUTH_TOKEN`: ```sh export CLAUDE_BOTTLE_OAUTH_TOKEN="" ``` `cli.py` automatically forwards it to every container as `CLAUDE_CODE_OAUTH_TOKEN` via `docker run -e` — no manifest wiring required, and the value is never written to disk or placed on argv. Inside the container, `claude` picks up `CLAUDE_CODE_OAUTH_TOKEN` and authenticates against your subscription. Caveats: the token is bound to your subscription tier (Pro/Max/Team/Enterprise), it does not work with `claude --bare` (which only reads `ANTHROPIC_API_KEY`), and if it leaks, regenerate via `claude setup-token` again. Reference: . ## Trademarks claude-bottle is an independent project and is not affiliated with, endorsed by, or sponsored by Anthropic, PBC. "Claude" and "Claude Code" are trademarks of Anthropic, PBC; the project name uses "claude" descriptively to indicate that the tool runs Claude Code inside a sandbox. ## License Copyright 2026 Eric Bauerfeld Licensed under the Apache License, Version 2.0. See [LICENSE](LICENSE) for the full text.