defaultLabels & hostnameLabel not functional

[mnj95]

Hello,

I have been trying to add options to PrometheusExporterPlugin but they don't seem to work. Can you please have a look on what could be going wrong.

        const service_name: string = `${process.env.NODE_ENV}-listing`;
        const hostname: string = process.env.HOST_NAME;
        const prometheusExporterPlugin = createPrometheusExporterPlugin({
            app: app,
            defaultLabels: {
                env: process.env.NODE_ENV,
                service: service_name
            },
            hostnameLabel: true,
            hostnameLabelName: hostname,
        });

Prometheus error:

expected equal, got "INVALID"