public PrometheusMiddleware(PrometheusOptions options)
{
_allowedHosts = new HashSet <string>(options.AllowedHosts ?? Array.Empty <string>());
_endpoint = string.IsNullOrWhiteSpace(options.Endpoint) ? "/metrics" :
options.Endpoint.StartsWith("/") ? options.Endpoint : $"/{options.Endpoint}";
_apiKey = options.ApiKey;
}
/// <summary>
/// Add support for exposing a prometheus scaraping endpoint
/// </summary>
/// <param name="scrapeEndpointPath">Path where the scrape endpoint will be exposed</param>
public static IApplicationBuilder UsePrometheusScraper(this IApplicationBuilder app, string scrapeEndpointPath)
{
var prometheusOptions = new PrometheusOptions
{
MapPath = scrapeEndpointPath,
UseDefaultCollectors = false
};
app.UsePrometheusServer(prometheusOptions);
return(app);
}
public PrometheusJob(PrometheusOptions options, ILogger <PrometheusJob> logger)
{
_enabled = options.Enabled;
_logger = logger;
_logger.LogInformation($"Prometheus integration is {(_enabled ? "enabled" : "disabled")}.");
}
