Gitea has its own built-in login, so it was never wired into the
forward_auth/Caddy pattern the rest of this repo uses to gate apps with
no auth of their own — that's still correct and unchanged. But Gitea
also supports adding an OAuth2/OpenID Connect authentication source
natively, and Authelia can act as an OIDC provider — a genuinely
different, additive integration: an extra "Sign in with Authelia" button
on Gitea's own login page, alongside local login, not a Caddy-level gate.
Refactored services/authelia.sh's _authelia_add_oidc_client() to split
out its non-interactive core as _authelia_provision_oidc_client() — same
behavior for the existing ActualBudget/Vaultwarden/Immich/custom-app menu
flow, but now callable directly by other services with explicit args
instead of walking a human through the menu, returning the plaintext
secret and Authelia's domain via out-params.
services/gitea.sh's new _gitea_offer_authelia_sso() uses that to fully
automate both sides when accepted: registers Gitea as an OIDC client in
Authelia, then runs `gitea admin auth add-oauth` itself to add Authelia
as an authentication source — no manual web-UI copy-paste on either side,
matching how this installer already avoids manual wizards for the admin
account/token. Falls back to printing the values for a manual add if the
Gitea-side CLI call fails. Offered on fresh installs and on Update
reruns (default no, so a plain Update stays silent), so it can be added
later without a full reinstall.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YEQNc4NfBST1m9NtCZVYa8