Add optional show_first flag to consolidate directive that logs
the first error immediately and then consolidates subsequent errors.
When show_first is enabled:
- The first matching error is logged immediately with full details
(rcode, domain, type, error message) using the configured log level
- Subsequent matching errors are consolidated during the period
- At period end:
- If only one error occurred, no summary is printed (already logged)
- If multiple errors occurred, summary shows the total count
Syntax:
consolidate DURATION REGEXP [LEVEL] [show_first]
Example with 3 errors:
[WARNING] 2 example.org. A: read udp 10.0.0.1:53->8.8.8.8:53: i/o timeout
[WARNING] 3 errors like '^read udp .* i/o timeout$' occurred in last 30s
Example with 1 error:
[WARNING] 2 example.org. A: read udp 10.0.0.1:53->8.8.8.8:53: i/o timeout
Implementation details:
- Add showFirst bool to pattern struct
- Rename inc() to consolidateError(), return false for showFirst case
- Use function pointer in ServeDNS to unify log calls with proper level
- Simplify logPattern() with single condition (cnt > 1 || !showFirst)
- Refactor parseLogLevel() to parseOptionalParams() with map-based dispatch
- Validate parameter order: log level must come before show_first
- Update README.md with show_first documentation and examples
- Add comprehensive test cases for show_first functionality
Signed-off-by: cangming <cangming@cangming.app>
Update all documentation in the tree to use example.org as an example
configuration (in so far possible). As to get out of the just use "."
and fallthrough and things would be fine.
Signed-off-by: Miek Gieben <miek@miek.nl>
* plugins: Return error for multiple use of some
Return plugin.ErrOnce when a plugin that doesn't support it, is called
mutliple times.
This now adds it for: cache, dnssec, errors, forward, hosts, nsid.
And changes it slightly in kubernetes, pprof, reload, root.
* more tests
* Add manual pages
Generate manual pages from the README and extend README with Name and
Description sections.
The generation requires 'ronn' which may not be available. Just check in
all generated manual pages.
* Rename middleware to plugin
first pass; mostly used 'sed', few spots where I manually changed
text.
This still builds a coredns binary.
* fmt error
* Rename AddMiddleware to AddPlugin
* Readd AddMiddleware to remain backwards compat
