.net core 发布linux报错“The configured user limit (128) on the number of inotify instances has been reached”

var builder = new configurationbuilder()
        .addjsonfile($"appsettings.json", true, true);

you are creating file watchers, every time you access an setting. the 3rd parameter is reloadonchange.
you have to make sure,

var configuration = builder.build()

is only called once in your application and store it in a place where you can access it (preferably avoid static fields for it).

or just disable the file watcher.

  var builder = new configurationbuilder()
        .addjsonfile($"appsettings.json", true, false);

or cleaner:

var builder = new configurationbuilder()
        .addjsonfile($"appsettings.json", optional: true, reloadonchange: false);

best way is to abstract hat behind an interface and use dependency injection.

public interface iconfigurationmanager
{
    t getappconfig<t>(string key, t defaultvalue = default(t));
}

public class configurationmanager : iconfigurationmanager
{
    private readonly iconfigurationroot config;

    public configurationmanager(iconfigurationroot config)
        => this.config ?? throw new argumentnullexception(nameof(config));

    public t getappconfig<t>(string key, t defaultvalue = default(t))
    {
        t setting = (t)convert.changetype(configuration[key], typeof(t));
        value = setting;
        if (setting == null)
            value = defaultvalue;
    }
}

then instantiate and register it

services.addsingleton<iconfigurationmanager>(new configurationmanager(this.configuration));

and inject it into your services via constructor