mitgliederverwaltung/docs/admin-bootstrap-and-oidc-role-sync.md

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 user is created in production.
• 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 are set, creates or updates the user with the Admin role. 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_rauthy after_action calls OidcRoleSync.
2. Sign-in: sign_in_with_rauthy 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.