netdata/netdata

// SPDX-License-Identifier: GPL-3.0-or-later

package haproxy

import (
    "errors"

    "github.com/netdata/netdata/go/go.d.plugin/pkg/prometheus"
    "github.com/netdata/netdata/go/go.d.plugin/pkg/prometheus/selector"
    "github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)

func (h *Haproxy) validateConfig() error {
    if h.URL == "" {
        return errors.New("'url' is not set")
    }
    if _, err := web.NewHTTPRequest(h.Request); err != nil {
        return err
    }
    return nil
}

func (h *Haproxy) initPrometheusClient() (prometheus.Prometheus, error) {
    httpClient, err := web.NewHTTPClient(h.Client)
    if err != nil {
        return nil, err
    }

    prom := prometheus.NewWithSelector(httpClient, h.Request, sr)
    return prom, nil
}

var sr, _ = selector.Expr{
    Allow: []string{
        metricBackendHTTPResponsesTotal,
        metricBackendCurrentQueue,
        metricBackendQueueTimeAverageSeconds,
        metricBackendBytesInTotal,
        metricBackendResponseTimeAverageSeconds,
        metricBackendSessionsTotal,
        metricBackendCurrentSessions,
        metricBackendBytesOutTotal,
    },
}.Parse()