# Admin Bootstrap and OIDC Role Sync

## Overview

- **Admin bootstrap:** In production, no seeds run. The first admin user is created/updated from environment variables in the Docker entrypoint (after migrate, before server). Password can be changed without redeploy via `bin/mv eval "Mv.Release.seed_admin()"`.
- **OIDC role sync:** Optional mapping from OIDC groups (e.g. from Authentik profile scope) to the Admin role. Users in the configured admin group get the Admin role on registration and on each sign-in.

## Admin Bootstrap (Part A)

### Environment Variables

- `ADMIN_EMAIL` – Email of the admin user to create/update. If unset, seed_admin/0 does nothing.
- `ADMIN_PASSWORD` – Password for the admin user. If unset (and no file), no new user is created; if a user with ADMIN_EMAIL already exists (e.g. OIDC-only), their role is set to Admin (no password change).
- `ADMIN_PASSWORD_FILE` – Path to a file containing the password (e.g. Docker secret).

### Release Task

- `Mv.Release.seed_admin/0` – Reads ADMIN_EMAIL and password from ADMIN_PASSWORD or ADMIN_PASSWORD_FILE. If both email and password are set: creates or updates the user with the Admin role. If only ADMIN_EMAIL is set: sets the Admin role on an existing user with that email (for OIDC-only admins); does not create a user. Idempotent.

### Entrypoint

- rel/overlays/bin/docker-entrypoint.sh – After migrate, runs seed_admin(), then starts the server.

### Seeds (Dev/Test)

- priv/repo/seeds.exs – Uses ADMIN_PASSWORD or ADMIN_PASSWORD_FILE when set; otherwise fallback "testpassword" only in dev/test.

## OIDC Role Sync (Part B)

### Configuration

- `OIDC_ADMIN_GROUP_NAME` – OIDC group name that maps to the Admin role. If unset, no role sync.
- `OIDC_GROUPS_CLAIM` – JWT claim name for group list (default "groups").
- Module: Mv.OidcRoleSyncConfig (oidc_admin_group_name/0, oidc_groups_claim/0).

### Sync Logic

- Mv.OidcRoleSync.apply_admin_role_from_user_info(user, user_info) – If admin group configured, sets user role to Admin or Mitglied based on user_info groups.

### Where It Runs

1. Registration: register_with_oidc after_action calls OidcRoleSync.
2. Sign-in: sign_in_with_oidc prepare after_action calls OidcRoleSync for each user.

### Internal Action

- User.set_role_from_oidc_sync – Internal update (role_id only). Used by OidcRoleSync; not exposed.

## See Also

- .env.example – Admin and OIDC group env vars.
- lib/mv/release.ex – seed_admin/0.
- lib/mv/oidc_role_sync.ex – Sync implementation.
- docs/oidc-account-linking.md – OIDC account linking.
