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headroom/wiki/docker-install.md
JerrettDavis bde7aa9c30 fix: align docker image versions with releases 
Derive the exact Docker image version from the release tag or manual
workflow input, sync versioned files in the build workspace before the
image build, and publish an explicit matching image tag.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-17 12:17:49 -05:00

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# Docker-Native Install
Run Headroom without installing Python or Node.js on the host. The install scripts add a native `headroom` wrapper that keeps **Headroom itself** in Docker while orchestrating the rest of your workflow on the host OS.
## One-line install
### Linux
```bash
curl -fsSL https://raw.githubusercontent.com/chopratejas/headroom/main/scripts/install.sh | bash
```
### macOS (bash 4.3+)
```bash
curl -fsSL https://raw.githubusercontent.com/chopratejas/headroom/main/scripts/install.sh | "$(brew --prefix bash)/bin/bash"
```
Stock `/bin/bash` on macOS is 3.2, so install a newer bash first (for example via Homebrew) and run the installer with that shell. The installed wrapper pins that same bash interpreter so later invocations stay on the supported runtime.
### Windows PowerShell
```powershell
irm https://raw.githubusercontent.com/chopratejas/headroom/main/scripts/install.ps1 | iex
```
## What the installer does
1. Verifies Docker is installed and available.
2. Pulls `ghcr.io/chopratejas/headroom:latest` by default, or reuses / pulls `HEADROOM_DOCKER_IMAGE` when you set a custom image override.
3. Installs a `headroom` wrapper into `~/.local/bin` or `~/bin`.
4. Updates shell startup files so the wrapper directory is on `PATH`.
The wrapper keeps Headroom inside Docker and mounts host state back into the container so native behavior stays consistent:
- project workspace -> `/workspace`
- `~/.headroom`
- `~/.claude`
- `~/.codex`
- `~/.gemini`
Port `8787` stays the default, so `http://localhost:8787` works the same way as a native install.
Published releases also push versioned GHCR tags such as `ghcr.io/chopratejas/headroom:0.5.26`, and those images are built with the same synced package version used for the matching PyPI and npm release.
## How the wrapper behaves
### Native Headroom commands
These run directly inside the container:
```bash
headroom proxy
headroom learn
headroom mcp install
headroom memory list
```
For `proxy`, the wrapper publishes the selected port back to the host:
```bash
docker run --rm -it \
-p 8787:8787 \
-v "$PWD:/workspace" \
-w /workspace \
ghcr.io/chopratejas/headroom:latest \
headroom proxy --host 0.0.0.0 --port 8787
```
### `wrap` commands
`wrap` is host-oriented in Docker-native mode:
- the wrapper starts the Headroom proxy in Docker
- container-side prep writes Headroom config, memory, and `rtk` guidance into mounted host files
- the target CLI itself is launched on the host by the wrapper
Supported host wrap flows:
- `headroom wrap claude`
- `headroom wrap codex`
- `headroom wrap aider`
- `headroom wrap cursor`
- `headroom wrap openclaw`
- `headroom unwrap openclaw`
OpenClaw remains host-native in Docker-native mode:
- the host must already have the `openclaw` CLI installed
- `headroom wrap openclaw` installs/configures the Headroom plugin through the host `openclaw` CLI
- plugin auto-start still launches the installed host `headroom` wrapper from `PATH`, which then runs Headroom in Docker
- local plugin source mode (`--plugin-path`) is also supported, but it may require host `npm` when build steps are needed
## Persistent Docker lifecycle from the native wrapper
The Docker-native `headroom` wrapper now exposes the persistent Docker lifecycle directly:
```bash
headroom install apply --profile default --preset persistent-docker
headroom install status
headroom install restart
headroom install remove
```
In Docker-native mode this surface is intentionally scoped to **persistent-docker**:
- supported: `apply`, `status`, `start`, `stop`, `restart`, `remove`
- supported flags: `--profile`, `--port`, `--backend`, `--anyllm-provider`, `--region`, `--mode`, `--memory`, `--no-telemetry`, `--image`
- not supported: `persistent-service`, `persistent-task`, or provider/user/system mutation flags such as `--scope`, `--providers`, and `--target`
Those broader lifecycle and config-mutation flows still belong to the Python-native `headroom install ...` command.
Persistent Docker deployments launched by the wrapper also tag the proxy process with deployment metadata, so `/health` reports the active `profile`, `preset`, `runtime`, `supervisor`, and `scope` the same way the Python install subsystem does.
## Docker Compose support
Use `docker/docker-compose.native.yml` when you want an explicit compose-managed proxy or CLI shell, or when you prefer compose over the native wrapper's `headroom install ...` surface.
### Persistent Docker runtime
The `proxy` service now uses `restart: unless-stopped`, so compose can act as the always-on Docker runtime for Headroom:
```bash
export HEADROOM_HOST_HOME="$HOME"
export HEADROOM_WORKSPACE="$PWD"
docker compose -f docker/docker-compose.native.yml up -d proxy
```
```powershell
$env:HEADROOM_HOST_HOME = $HOME
$env:HEADROOM_WORKSPACE = (Get-Location).Path
docker compose -f docker/docker-compose.native.yml up -d proxy
```
This remains a supported persistent-Docker path when you want the proxy managed explicitly through Compose instead of the installed wrapper.
#### `HEADROOM_WORKSPACE` vs `HEADROOM_WORKSPACE_DIR`
These are two different variables — both are set by the compose file,
and both are retained for backward compatibility:
- **`HEADROOM_WORKSPACE`** (host-side) is the directory the compose file
bind-mounts into the container as `/workspace`. It behaves like CWD
in a native (non-Docker) run.
- **`HEADROOM_WORKSPACE_DIR`** (inside-the-container) is the canonical
Headroom state root — part of the [filesystem contract][fs]
introduced in issue #175. The compose file sets it to
`/tmp/headroom-home/.headroom` so the proxy resolves savings, logs,
TOIN, and memory under the bind-mounted `${HOME}/.headroom`.
You do not need to set `HEADROOM_WORKSPACE_DIR` manually when using the
shipped compose file — it is already in the `environment:` block.
[fs]: filesystem-contract.md
### macOS / Linux
```bash
export HEADROOM_HOST_HOME="$HOME"
export HEADROOM_WORKSPACE="$PWD"
docker compose -f docker/docker-compose.native.yml up proxy
```
### Windows PowerShell
```powershell
$env:HEADROOM_HOST_HOME = $HOME
$env:HEADROOM_WORKSPACE = (Get-Location).Path
docker compose -f docker/docker-compose.native.yml up proxy
```
You can also run one-off CLI commands through compose:
```bash
docker compose -f docker/docker-compose.native.yml run --rm cli learn
docker compose -f docker/docker-compose.native.yml run --rm cli mcp install
```
## Environment passthrough
The wrapper forwards Headroom and provider environment variables into the container, including common prefixes such as:
- `HEADROOM_`
- `ANTHROPIC_`
- `OPENAI_`
- `GEMINI_`
- `AWS_`
- `GOOGLE_` / `GOOGLE_CLOUD_`
- `AZURE_`
- `OTEL_`
That keeps provider auth and runtime config working without maintaining a separate env file for the container.
## Notes
- Docker is the only required Headroom runtime dependency on the host.
- Wrapped tools like Claude Code, Codex CLI, Aider, and Cursor still run on the host when you use `headroom wrap ...`.
- The install scripts are idempotent: rerunning them refreshes the wrapper and image without duplicating shell profile blocks.
- For persistent service and task installs, use the Python-native `headroom install ...` workflow described in [Persistent Installs](persistent-installs.md).
- For Docker-native `headroom install ...`, the wrapper persists its profile manifest under `~/.headroom/deploy/<profile>/`.
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