jknapp 6bb494c72f fix(shared-ols): review fixes — watcher starvation, atomic render, O(N) chown, safe meta parse ...

Addresses the local code-review on the OLS-tier images:
- [HIGH] ols-htaccess-watcher.sh: the debounce drain read ALL inotify events
  unfiltered, so on a busy multi-tenant server it never timed out and the
  restart was STARVED (rewrite changes silently never applied). Now coalesces
  with a hard DEBOUNCE-bounded window. Verified under continuous noise.
- [HIGH] render-shared-ols-config.sh: built httpd_config.conf in-place across
  several appends, so a concurrent OLS restart (watcher) or parallel render
  could read a half-written config and 503 the whole tier. Now flock-serialized,
  built in a temp file and atomically moved into place; refuses to publish empty.
- [MED] render + entrypoint: replaced recursive chown of the whole conf tree
  (O(N-sites) on every single-site change / boot) with a targeted chown of just
  the file written.
- [MED] render: parse site.meta with sed instead of sourcing it (do not execute
  panel-written data as shell).
- [cleanup] removed the unused configs/shared-ols/vhconf.tpl (the panel copy is
  the single source; the image never read it).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-06-10 08:35:26 -07:00

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