tailscale docs

docs/TAILSCALE.md

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+# Tailscale
+
+Connect your Toes appliance to your Tailscale network for secure access from anywhere.
+
+Tailscale is pre-installed on the appliance but not configured. The user authenticates through the dashboard or CLI — no SSH required.
+
+## how it works
+
+1. User clicks "Connect to Tailscale" in the dashboard (or runs `toes tailscale connect`)
+2. Toes runs `tailscale login` and captures the auth URL
+3. Dashboard shows the URL and a QR code
+4. User visits the URL and authenticates with Tailscale
+5. Toes detects the connection, runs `tailscale serve --bg 80`
+6. Appliance is now accessible at `https://<hostname>.<tailnet>.ts.net`
+
+## dashboard
+
+Settings area shows one of three states:
+
+**Not connected:**
+- "Connect to Tailscale" button
+
+**Connecting:**
+- Auth URL as a clickable link
+- QR code for mobile
+- Polls `tailscale status` until authenticated
+
+**Connected:**
+- Tailnet URL (clickable)
+- Tailnet name
+- Device hostname
+- `tailscale serve` toggle
+- "Disconnect" button
+
+## cli
+
+```bash
+toes tailscale              # show status
+toes tailscale connect      # start auth flow, print URL, wait
+toes tailscale disconnect   # log out of tailnet
+toes tailscale serve        # toggle tailscale serve on/off
+```
+
+### `toes tailscale`
+
+```
+Tailscale: connected
+Tailnet:   user@github
+Hostname:  toes.tail1234.ts.net
+IP:        100.64.0.1
+Serve:     on (port 80)
+```
+
+Or when not connected:
+
+```
+Tailscale: not connected
+
+Run `toes tailscale connect` to get started.
+```
+
+### `toes tailscale connect`
+
+```
+Visit this URL to authenticate:
+https://login.tailscale.com/a/abc123
+
+Waiting for authentication... done!
+Connected to tailnet user@github
+https://toes.tail1234.ts.net
+```
+
+## server api
+
+All endpoints shell out to the `tailscale` CLI and parse output.
+
+### `GET /api/tailscale`
+
+Returns current status.
+
+```json
+{
+  "installed": true,
+  "connected": true,
+  "hostname": "toes",
+  "tailnetName": "user@github",
+  "url": "https://toes.tail1234.ts.net",
+  "ip": "100.64.0.1",
+  "serving": true
+}
+```
+
+When not connected:
+
+```json
+{
+  "installed": true,
+  "connected": false
+}
+```
+
+When tailscale isn't installed:
+
+```json
+{
+  "installed": false
+}
+```
+
+### `POST /api/tailscale/connect`
+
+Runs `tailscale login`. Returns the auth URL.
+
+```json
+{
+  "authUrl": "https://login.tailscale.com/a/abc123"
+}
+```
+
+### `POST /api/tailscale/disconnect`
+
+Runs `tailscale logout`.
+
+### `POST /api/tailscale/serve`
+
+Toggles `tailscale serve`. Body:
+
+```json
+{ "enabled": true }
+```
+
+## install
+
+`scripts/install.sh` installs tailscale and enables the daemon, but does not authenticate:
+
+```bash
+curl -fsSL https://tailscale.com/install.sh | sh
+sudo systemctl enable tailscaled
+```
+
+## permissions
+
+The `toes` user needs passwordless sudo for tailscale commands. Add to sudoers during install:
+
+```
+toes ALL=(ALL) NOPASSWD: /usr/bin/tailscale
+```
+
+This lets the server run `sudo tailscale login`, `sudo tailscale serve`, etc. without a password prompt.