# Authentication

KestrelOS supports **local login** (username/email + password) and optional **OIDC** (SSO). All users must sign in.

## Local Login

**First run:** On first start, KestrelOS creates an admin account:
- If `BOOTSTRAP_EMAIL` and `BOOTSTRAP_PASSWORD` are set → that account is created
- Otherwise → default admin (`admin`) with random password printed in terminal

**Sign in:** Open `/login`, enter identifier and password. Change password or add users via **Members** (admin only).

## OIDC (SSO)

**Enable:** Set `OIDC_ISSUER`, `OIDC_CLIENT_ID`, `OIDC_CLIENT_SECRET`. Optional: `OIDC_LABEL`, `OIDC_REDIRECT_URI`, `OIDC_SCOPES`.

**IdP setup:**
1. Create OIDC client in your IdP (Keycloak, Auth0, etc.)
2. Set redirect URI: `https://<your-host>/api/auth/oidc/callback`
3. Copy Client ID and Secret to env vars

**Sign up:** Users sign up at the IdP. First OIDC login in KestrelOS creates their account automatically.

**Redirect URI:** Defaults to `{APP_URL}/api/auth/oidc/callback` (uses `NUXT_APP_URL`/`APP_URL` or falls back to `HOST`/`PORT`).

## OIDC Users and ATAK/iTAK

OIDC users don't have a KestrelOS password. To use ATAK/iTAK:
1. Sign in with OIDC
2. Go to **Account** → set **ATAK password**
3. Use KestrelOS username + ATAK password in TAK client

## Roles

- **Admin** — Manage users, edit POIs, add/edit devices (API)
- **Leader** — Edit POIs, add/edit devices (API)
- **Member** — View map/cameras/POIs, use Share live

Only admins can change roles (Members page).