out_stdout: add use_logger option #593
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fluent/fluentd#5036 Signed-off-by: Daijiro Fukuda <[email protected]>
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Jul 30, 2025
**Which issue(s) this PR fixes**: * Fixes #5029 **What this PR does / why we need it**: Add `use_logger` option to `out_stdout` plugin. * Type: `bool` * Default: `true` If you set `false` to this option, `out_stdout` outputs events to `$stdout`, instead of `$logger`. This feature enables events to be output to STDOUT in containerized environments, such as K8s. This does not change the default behavior. Note: Although it's preferable for the default value of a `bool` option to be `false` (because it can be used as a flag), I couldn't think of a suitable name for it. **Docs Changes**: fluent/fluentd-docs-gitbook#593 **Release Note**: out_stdout: support output to STDOUT independently of Fluentd logger by setting `use_logger` to `false`. --------- Signed-off-by: Daijiro Fukuda <[email protected]> Co-authored-by: Takuro Ashie <[email protected]> Co-authored-by: Kentaro Hayashi <[email protected]> Co-authored-by: Shizuo Fujita <[email protected]> Co-authored-by: Kentaro Hayashi <[email protected]>
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https://docs.fluentd.org/output/stdout
Corresponding fix: