nullrouten0 and Claude Opus 5
478f74a452
fix(config): write the geo filter through a symlinked config.json ( #2137 )
...
Found while reworking #2125 , unrelated to that PR's change.
In the Docker image the entrypoint symlinks `/app/config.json` to the
bind-mounted `/app/data/config.json`. `SaveGeoFilter` takes the first
path `os.Stat` resolves, so `configPath` stays the symlink, and the
tmp+rename then **replaces the link with a regular file inside the
container**:
- the mounted `config.json` keeps the old `geo_filter`, so the filter
the operator just saved appears nowhere on the host;
- server and ingestor read the detached file from then on, so the UI
keeps showing the new filter and nothing looks wrong;
- the next container start reverts it: the entrypoint's `ln -sf` puts
the link back, and re-creating the container drops the file anyway.
**Fix:** resolve a symlink at `configPath` before the write, so the save
lands in the file it points at and the link stays a link. Only a regular
file is followed — a link to a device, fifo or directory is left alone
and handled as before.
This is deliberately the opposite of `writeStatsAtomic` (refs #1170 ),
where replacing a destination symlink is the point because the default
stats path can be world-writable `/tmp`. `config.json` is different: the
link is one the image itself creates, and the directory is not
world-writable. Happy to narrow it further (e.g. only follow a link that
stays inside `configDir`) if you'd rather keep the two paths consistent.
**Verification:** `TestSaveGeoFilterSymlinkedConfig` fails on master —
```
--- FAIL: TestSaveGeoFilterSymlinkedConfig
config_symlink_test.go:47: .../config.json is no longer a symlink (mode -rw-------) — the rename replaced it
config_symlink_test.go:60: geo_filter missing from .../data/config.json: {"port":3000,"_comment":"keep me"}
```
— and passes here. `TestSaveGeoFilterKeepsOwner` covers keeping the
file's owner, and `TestSaveGeoFilterFifoSymlinkTarget` checks that only
regular files are followed. `go test ./...` in `cmd/server` passes.
**Single-file mounts:** when `config.json` is mounted as a single file,
the save now fails with 500 (`EBUSY`) instead of writing a copy that the
next start discards.
Our own instance has no geo filter configured, which is why this went
unnoticed there; its `/app/config.json` is still a symlink.
🤖 Generated with [Claude Code](https://claude.com/claude-code )
---------
Co-authored-by: Claude Opus 5 <noreply@anthropic.com >
2026-10-13 08:44:49 +02:00
..
2026-04-21 09:09:39 -07:00
2026-10-10 18:20:49 +02:00
2026-10-08 22:16:49 +02:00
2026-10-10 18:20:49 +02:00
2026-10-07 09:25:29 +02:00
2026-10-07 09:25:29 +02:00
2026-10-08 21:38:30 +02:00
2026-10-08 21:38:30 +02:00
2026-10-10 18:20:49 +02:00
2026-10-08 22:02:39 +02:00
2026-10-08 21:38:30 +02:00
2026-10-10 18:20:49 +02:00
2026-10-08 21:38:30 +02:00
2026-10-03 12:16:55 +02:00
2026-04-03 13:51:13 -07:00
2026-10-03 12:16:55 +02:00
2026-10-03 12:16:55 +02:00
2026-10-03 12:16:55 +02:00
2026-10-03 12:16:55 +02:00
2026-10-11 09:51:48 +02:00
2026-09-22 07:55:37 +02:00
2026-05-21 14:00:15 -07:00
2026-10-11 09:51:48 +02:00
2026-09-13 19:59:37 +02:00
2026-09-13 19:59:37 +02:00
2026-09-04 16:02:59 +02:00
2026-10-10 21:22:20 +02:00
2026-10-07 09:25:29 +02:00
2026-10-08 22:02:39 +02:00
2026-10-08 22:02:39 +02:00
2026-10-08 21:38:30 +02:00
2026-10-07 09:25:29 +02:00
2026-10-10 18:20:49 +02:00
2026-10-10 18:08:51 +02:00
2026-10-08 21:38:30 +02:00
2026-10-08 22:02:39 +02:00
2026-10-08 22:02:39 +02:00
2026-10-07 09:25:29 +02:00
2026-10-07 11:20:44 +02:00
2026-10-11 11:28:20 +02:00
2026-10-11 11:28:20 +02:00
2026-10-10 18:20:49 +02:00
2026-10-10 18:20:49 +02:00
2026-05-03 17:56:42 -07:00
2026-05-03 17:56:42 -07:00
2026-10-10 18:20:49 +02:00
2026-10-08 16:26:10 +02:00
2026-09-16 09:02:13 +02:00
2026-05-18 22:51:23 -07:00
2026-05-18 22:51:23 -07:00
2026-05-18 22:51:23 -07:00
2026-06-27 22:03:05 -07:00
2026-06-04 03:21:26 -07:00
2026-09-03 18:52:03 +02:00
2026-10-09 19:58:42 +02:00
2026-10-09 19:58:42 +02:00
2026-06-04 13:14:09 +00:00
2026-09-03 18:52:03 +02:00
2026-10-12 12:41:46 +02:00
2026-04-20 21:46:34 -07:00
2026-10-05 20:32:40 +02:00
2026-09-13 20:36:34 +02:00
2026-09-03 18:52:03 +02:00
2026-05-25 22:16:14 -07:00
2026-06-07 03:43:29 -07:00
2026-09-16 09:02:13 +02:00
2026-09-16 09:02:13 +02:00
2026-09-03 18:52:03 +02:00
2026-10-13 08:37:54 +02:00
2026-06-03 13:58:04 -07:00
2026-06-06 22:45:05 -07:00
2026-10-10 18:20:49 +02:00
2026-09-02 09:50:18 +02:00
2026-09-03 18:52:03 +02:00
2026-09-02 09:50:18 +02:00
2026-05-18 12:27:44 -07:00
2026-09-03 18:52:03 +02:00
2026-09-13 19:59:37 +02:00
2026-05-21 14:00:15 -07:00
2026-10-10 18:20:49 +02:00
2026-10-10 18:20:49 +02:00
2026-10-10 18:20:49 +02:00
2026-10-10 18:20:49 +02:00
2026-05-21 11:39:49 -07:00
2026-05-21 11:39:49 -07:00
2026-05-21 11:39:49 -07:00
2026-09-03 18:52:03 +02:00
2026-10-10 21:20:40 +02:00
2026-10-13 08:44:49 +02:00
2026-10-13 08:44:49 +02:00
2026-10-13 08:44:49 +02:00
2026-10-13 08:44:49 +02:00
2026-06-06 22:45:05 -07:00
2026-10-13 08:44:49 +02:00
2026-10-10 18:20:49 +02:00
2026-05-30 13:22:41 -07:00
2026-05-30 13:22:41 -07:00
2026-10-10 18:20:49 +02:00
2026-06-19 11:37:16 -07:00
2026-06-27 22:03:05 -07:00
2026-06-27 22:03:05 -07:00
2026-10-12 12:41:46 +02:00
2026-06-04 14:41:00 -07:00
2026-09-02 13:10:43 +00:00
2026-09-23 10:05:59 +02:00
2026-10-10 11:03:56 +02:00
2026-10-13 08:35:20 +02:00
2026-06-12 19:10:44 -07:00
2026-05-15 22:34:21 -07:00
2026-09-03 18:52:03 +02:00
2026-09-03 18:52:03 +02:00
2026-10-10 18:20:49 +02:00
2026-10-10 18:20:49 +02:00
2026-09-22 23:55:55 +02:00
2026-10-11 09:51:48 +02:00
2026-05-05 01:16:57 -07:00
2026-09-03 18:52:03 +02:00
2026-06-29 15:53:59 -07:00
2026-09-17 21:58:34 +02:00
2026-04-16 00:09:36 -07:00
2026-09-20 15:12:36 +02:00
2026-10-12 12:41:46 +02:00
2026-06-04 16:27:48 -07:00
2026-05-05 01:58:52 -07:00
2026-05-19 23:53:41 -07:00
2026-03-31 01:10:56 -07:00
2026-09-05 09:57:44 +02:00
2026-10-08 21:51:42 +02:00
2026-10-07 09:25:29 +02:00
2026-06-27 22:03:05 -07:00
2026-09-04 15:15:16 +02:00
2026-09-04 15:15:16 +02:00
2026-09-03 18:52:03 +02:00
2026-06-07 09:28:51 -07:00
2026-04-03 13:11:59 -07:00
2026-06-19 11:37:16 -07:00
2026-09-16 09:02:13 +02:00
2026-06-11 10:10:12 -07:00
2026-06-11 10:10:12 -07:00
2026-10-12 12:42:17 +02:00
2026-05-15 16:21:14 +00:00
2026-05-16 19:55:00 +00:00
2026-09-03 18:52:03 +02:00
2026-05-15 20:24:55 -07:00
2026-05-15 22:46:25 -07:00
2026-09-16 09:02:13 +02:00
2026-09-06 21:00:44 +02:00
2026-10-12 12:41:46 +02:00
2026-10-13 08:37:54 +02:00
2026-09-16 09:02:13 +02:00
2026-05-21 14:00:15 -07:00
2026-10-09 19:58:42 +02:00
2026-05-02 20:35:15 -07:00
2026-05-17 16:13:11 +00:00
2026-05-19 08:08:28 -07:00
2026-05-18 23:19:27 -07:00
2026-09-16 09:02:13 +02:00
2026-06-25 05:05:46 -07:00
2026-09-16 09:02:13 +02:00
2026-06-11 07:38:36 -07:00
2026-09-03 18:52:03 +02:00
2026-06-11 07:38:36 -07:00
2026-06-06 22:44:59 -07:00
2026-09-16 09:02:13 +02:00
2026-09-16 09:02:13 +02:00
2026-10-12 11:13:53 +02:00
2026-09-16 09:02:13 +02:00
2026-09-16 09:02:13 +02:00
2026-10-11 11:28:20 +02:00
2026-10-11 11:28:20 +02:00
2026-10-07 09:25:29 +02:00
2026-09-03 18:52:03 +02:00
2026-09-16 09:02:13 +02:00
2026-09-16 09:02:13 +02:00
2026-09-02 10:27:48 +02:00
2026-06-30 15:16:31 -07:00
2026-06-12 08:11:02 -07:00
2026-09-02 10:27:48 +02:00
2026-10-08 15:58:07 +02:00
2026-09-16 09:02:13 +02:00
2026-05-03 08:56:09 -07:00
2026-05-21 14:00:15 -07:00
2026-09-16 09:02:13 +02:00
2026-09-03 18:52:03 +02:00
2026-04-02 23:45:03 -07:00
2026-09-03 18:52:03 +02:00
2026-09-03 18:52:03 +02:00
2026-05-29 02:42:21 -07:00
2026-05-29 02:42:21 -07:00
2026-05-29 02:42:21 -07:00
2026-05-29 02:42:21 -07:00
2026-05-16 10:14:44 -07:00
2026-10-12 12:41:46 +02:00
2026-09-03 18:52:03 +02:00
2026-09-16 09:02:13 +02:00
2026-09-13 19:59:56 +02:00
2026-09-16 09:02:13 +02:00
2026-05-19 23:53:41 -07:00
2026-10-10 11:03:56 +02:00
2026-10-10 11:03:56 +02:00
2026-09-03 18:52:03 +02:00
2026-09-13 21:09:51 +02:00
2026-09-22 07:55:37 +02:00
2026-09-22 07:55:37 +02:00
2026-09-13 19:59:56 +02:00
2026-09-13 19:59:56 +02:00
2026-09-16 09:02:13 +02:00
2026-06-09 03:23:48 -07:00
2026-10-08 16:26:15 +02:00
2026-09-16 09:02:13 +02:00
2026-10-09 21:20:34 +02:00
2026-10-09 21:20:34 +02:00
2026-06-19 11:37:16 -07:00
2026-06-19 11:37:16 -07:00
2026-09-23 09:45:18 +02:00
2026-05-18 09:22:27 -07:00
2026-09-03 18:52:03 +02:00
2026-10-10 21:21:50 +02:00
2026-10-08 22:02:39 +02:00
2026-10-10 20:54:35 +02:00
2026-10-10 20:54:35 +02:00
2026-10-10 20:54:35 +02:00
2026-10-10 18:20:49 +02:00
2026-10-10 20:54:35 +02:00
2026-10-10 20:54:35 +02:00
2026-10-10 20:54:35 +02:00
2026-10-08 22:02:39 +02:00
2026-10-10 20:54:35 +02:00
2026-10-11 14:31:12 +02:00
2026-10-11 14:31:12 +02:00
2026-09-22 11:08:17 +02:00
2026-09-03 18:52:03 +02:00
2026-09-02 11:07:08 +02:00
2026-09-03 18:52:03 +02:00
2026-09-02 09:50:26 +02:00
2026-05-29 01:08:12 -07:00
2026-05-29 01:08:12 -07:00
2026-10-13 08:37:54 +02:00
2026-05-29 02:42:21 -07:00
2026-05-29 02:42:21 -07:00
2026-09-03 18:52:03 +02:00
2026-09-03 18:52:03 +02:00
2026-10-10 17:39:33 +02:00
2026-07-07 00:12:44 -07:00
2026-09-03 18:52:03 +02:00
2026-10-11 11:28:20 +02:00
2026-09-02 18:34:59 +02:00
2026-05-17 16:13:11 +00:00
2026-05-25 22:32:00 -07:00
2026-06-04 23:48:47 -07:00
2026-10-05 20:32:40 +02:00
2026-05-15 22:46:28 -07:00
2026-05-15 22:46:28 -07:00
2026-05-15 22:46:28 -07:00
2026-05-15 22:46:28 -07:00
2026-05-15 22:46:28 -07:00
2026-09-02 09:50:09 +02:00
2026-09-03 18:52:03 +02:00
2026-10-12 12:45:41 +02:00
2026-10-08 14:34:31 +02:00
2026-10-08 14:34:31 +02:00
2026-10-12 12:41:46 +02:00
2026-09-02 14:34:20 +02:00
2026-10-08 14:34:31 +02:00
2026-10-09 19:58:42 +02:00
2026-10-10 10:58:33 +02:00
2026-09-30 11:39:25 +02:00
2026-10-09 19:58:42 +02:00
2026-09-30 11:39:25 +02:00
2026-09-30 11:39:25 +02:00
2026-09-30 11:39:25 +02:00
2026-09-03 18:52:03 +02:00
2026-09-03 18:52:03 +02:00
2026-05-08 16:29:23 -07:00
2026-05-08 16:29:23 -07:00
2026-06-07 09:28:51 -07:00
2026-05-05 17:56:56 -07:00
2026-09-16 09:02:13 +02:00
2026-04-01 19:26:11 -07:00
2026-06-06 22:45:05 -07:00
2026-05-15 09:16:39 -07:00
2026-09-16 09:02:13 +02:00
2026-10-10 18:20:49 +02:00
2026-10-08 21:51:42 +02:00
2026-10-08 21:51:42 +02:00
2026-10-07 09:25:29 +02:00
2026-06-27 22:03:05 -07:00
2026-06-27 22:03:05 -07:00
2026-05-03 19:50:01 -07:00
2026-10-10 21:21:50 +02:00
2026-10-05 23:42:07 +02:00
2026-10-10 21:23:05 +02:00
2026-10-03 12:16:55 +02:00
2026-10-12 12:41:46 +02:00
2026-10-03 12:16:55 +02:00
2026-05-21 11:39:43 -07:00
2026-05-20 20:57:02 -07:00
2026-09-03 18:52:03 +02:00
2026-05-28 15:01:58 -07:00
2026-10-08 14:34:31 +02:00
2026-06-06 20:46:42 -07:00
2026-06-06 20:46:42 -07:00
2026-07-08 15:13:39 -07:00
2026-09-02 18:34:59 +02:00
2026-10-12 12:41:46 +02:00
2026-05-20 20:57:02 -07:00
2026-10-08 14:34:31 +02:00
2026-10-07 09:25:29 +02:00
2026-05-15 16:21:14 +00:00
2026-05-15 09:16:39 -07:00
2026-09-03 18:52:03 +02:00
2026-09-03 18:52:03 +02:00
2026-10-12 12:41:46 +02:00
2026-10-10 10:58:33 +02:00
2026-10-09 19:58:42 +02:00
2026-09-13 20:37:14 +02:00
2026-09-13 20:37:14 +02:00
2026-10-04 22:11:34 +02:00
2026-10-04 22:11:34 +02:00
2026-05-18 07:36:28 -07:00
2026-05-03 17:56:12 -07:00
2026-09-03 18:52:03 +02:00
2026-10-12 15:24:13 +02:00
2026-10-13 08:35:16 +02:00
2026-09-03 18:52:03 +02:00
2026-06-19 11:37:16 -07:00
2026-10-10 17:39:33 +02:00
2026-10-10 17:39:33 +02:00
2026-10-10 18:20:49 +02:00
2026-10-04 17:15:50 +02:00
2026-10-10 17:39:33 +02:00
2026-10-10 18:20:49 +02:00
2026-10-10 18:20:49 +02:00
2026-05-15 16:21:14 +00:00
2026-10-11 11:17:12 +02:00
2026-09-19 11:44:47 +02:00
2026-10-11 11:17:12 +02:00
2026-09-11 15:07:31 +02:00
2026-09-11 15:07:31 +02:00
2026-09-19 11:44:47 +02:00
2026-10-10 21:22:02 +02:00
2026-10-11 11:17:12 +02:00
2026-09-09 17:58:09 +02:00
2026-09-10 22:30:24 +02:00
2026-10-07 11:20:44 +02:00
2026-10-07 11:20:44 +02:00
2026-10-07 11:20:44 +02:00
2026-10-07 11:20:44 +02:00
2026-05-03 17:40:54 -07:00
2026-06-03 13:58:04 -07:00
2026-06-30 18:21:21 -07:00
2026-04-20 23:10:33 -07:00
2026-10-09 19:58:42 +02:00
2026-10-09 19:58:42 +02:00
2026-10-09 19:58:42 +02:00
2026-04-21 09:09:39 -07:00
2026-10-13 08:37:54 +02:00
2026-05-29 02:42:21 -07:00
2026-10-12 12:41:46 +02:00
2026-10-13 08:35:16 +02:00
2026-10-12 12:41:46 +02:00
2026-10-10 21:21:13 +02:00
2026-05-03 17:41:22 -07:00
2026-05-03 17:41:22 -07:00
2026-09-16 09:02:13 +02:00
2026-10-12 12:41:46 +02:00
2026-06-27 22:03:05 -07:00
2026-09-02 18:34:59 +02:00
2026-10-13 08:35:20 +02:00
2026-10-13 08:35:20 +02:00
2026-10-10 18:20:49 +02:00
2026-06-27 22:03:05 -07:00
2026-06-27 22:03:05 -07:00
2026-06-27 22:03:05 -07:00
2026-06-27 22:03:05 -07:00
2026-10-11 11:28:20 +02:00
2026-10-11 11:28:20 +02:00
2026-10-10 18:20:49 +02:00
2026-10-08 22:16:49 +02:00
2026-10-08 22:16:49 +02:00
2026-06-29 05:48:58 -07:00
2026-09-13 19:59:18 +02:00
2026-09-13 19:59:18 +02:00
2026-09-06 21:11:29 +02:00
2026-09-06 21:11:29 +02:00
2026-09-02 14:21:42 +02:00