Eight server roles declare an `mcp` RBAC role, so the platform mints
roles/<app>/mcp and the administrator joins it. Open WebUI now honours those
groups instead of flattening them to user/admin, and each MCP tool server is
restricted to the group of the role that serves it.
The grant cannot be rendered: Open WebUI matches it against a group id that
insert_new_group mints as a fresh UUID, so tasks/01_mcp.yml resolves the group
after the container is up and writes the grant through the admin API, the way
every instance-minted credential in this repository is provisioned.
Entries render disabled. An empty access_grants is not 'nobody', Open WebUI
reads it as every administrator, and ENABLE_PERSISTENT_CONFIG=false makes the
env authoritative again on every start. Enabling only together with the grant
keeps the fallback at no access rather than too much.
The provisioning account is the role-internal openwebui-api-bot, never a
platform identity: OAUTH_MERGE_ACCOUNTS_BY_EMAIL ships disabled and an OIDC
login whose email a local account already holds is refused, so seeding a
person's address would lock them out.
Known limits are documented rather than claimed away: a bare restart leaves MCP
off until the next deploy, a user's roles list carries no application context so
roles: [mcp] grants every deployed mcp group at once, and Open WebUI drops a
stale membership only while the groups claim is non-empty.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Baserow's native SSO is Enterprise-only, so gate the community image with the shared Keycloak oauth2-proxy and patch urls.py (via a custom Dockerfile) with a trusted-header bridge. The bridge provisions/repairs a local Baserow user from the oauth2-proxy identity headers and mints native refresh/access/user_session tokens, mirroring Baserow's own SSO redirect contract (?token=&user_session=).
proxy.conf.j2 performs the nginx handoff: an authenticated browser without a jwt_token cookie is 302'd to /api/infinito/sso/login/, which redirects back to /?token=&user_session= for the frontend middleware to consume. bootstrap_admin marks the superuser email_verified + completed_onboarding to skip onboarding.
Replace the LDAP service/variant with proxy-gating and rewrite the seaweedfs + persona Playwright tests to drive Baserow through its API using the SSO-minted JWT.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5