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out_opensearch,in_opensearch: mask hosts in the configuration dump - #193
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kenhys
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September 17, 2026 03:25
Before: `hosts` accepts "https://user:password@host" and `endpoint.url` can carry a user and a password, but neither was marked secret. Fluentd logs the whole configuration after configure and masks only secret parameters, so those passwords were written to the log in plain text. After: `hosts` in both plugins and `endpoint.url` are secret, so the dump shows "xxxxxx" for them. The host list no longer appears in the startup log. Co-Authored-By: Claude <noreply@anthropic.com> Signed-off-by: Kentaro Hayashi <hayashi@clear-code.com>
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Before:
hostsaccepts "https://user:password@host" andendpoint.urlcan carry a user and a password, but neither was marked secret. Fluentd logs the whole configuration after configure and masks only secret parameters, so those passwords were written to the log in plain text.After:
hostsin both plugins andendpoint.urlare secret, so the dump shows "xxxxxx" for them. The host list no longer appears in the startup log.