fluent-bit: added ability to set extra config reload dirs

[AndrewChubatiuk]

added ability to set extra dirs for hot reloader

[stevehipwell]

@AndrewChubatiuk do you have an example of what this fixes and have you tested the changes work as expected?

[AndrewChubatiuk]

hey @stevehipwell
We're using a fluent-bit chart as a dependency and cannot use parent chart template to generate Host value, that's why we're creating a custom ConfigMap, mounting it inside fluent-bit using @Include to use this file, but hot reload for a custom mount path or for nested mounts is not working, that's why adding extra paths for config-reloader is needed

[stevehipwell]

@AndrewChubatiuk have you tested this out? There are limitations to what files can be reloaded. @patrick-stephens do you have any more context on the reload system?

[AndrewChubatiuk]

it's working, there's a link in PR, where I've added a workaround to a chart till it's not merged

[patrick-stephens]

Reload only supports http or signal based approaches if that's what you mean?

I suspect this is about the trigger for the reload right?

[AndrewChubatiuk]

yes, it's needed for triggering http endpoint on changes in a file systemd

[stevehipwell]

@patrick-stephens I was thinking about the limitations and current issues such as fluent/fluent-bit#8918.