Two SSO follow-ups the operator hit after Nextcloud OIDC login worked.
1. Sign-out "redirect failed". On logout user_oidc redirects the browser to
Keycloak's end_session_endpoint with post_logout_redirect_uri=<Nextcloud
base '/'> and client_id=nextcloud but NO id_token_hint (provider
sendIdTokenHint=0). Keycloak then validates that redirect against the
client's post.logout.redirect.uris attribute, which was empty -> "Invalid
redirect uri" -> the operator's "redirect failed". Register
https://nextcloud.home.keithjackson.dev/* on the nextcloud client
(attributes.post.logout.redirect.uris). Applied live via kcadm and captured
here so git stays authoritative (a RealmImport no-ops on the existing realm).
2. postStart step (d) mirrors platform-admins -> built-in admin group, but the
previous single best-effort pass ran occ group:adduser once with output
swallowed and no retry. At early boot (container Started ~9s after create)
that call can transiently fail (DB / maintenance race), silently dropping the
promotion until the next restart. Harden step (d) with a verify-and-retry
loop (like step (c)): re-read group:list and re-add any platform-admins
member still missing from admin until verified (bounded ~30s), no-op for
existing members.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
jakman85andClaude Opus 4.8
7f86e1099b