config: added dns resolver selector #4420
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Signed-off-by: Leonardo Alminana <[email protected]>
Signed-off-by: Leonardo Alminana <[email protected]>
Signed-off-by: Leonardo Alminana <[email protected]>
Signed-off-by: Leonardo Alminana <[email protected]>
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This PR makes it possible to select if we want fluent-bit to use c-ares or the systems resolver.
The new configuration keys are dns.resolver which goes in the [SERVICE] section and acts as a global default and net.dns.resolver which can be placed on each output plugin and acts as a localized override.
The values for this option are LEGACY and ASYNC with the latter being the default one.
Note : This is a backport of PR #4419