netdata/netdata

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

package coredns

import (
    "errors"

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

func (cd *CoreDNS) validateConfig() error {
    if cd.URL == "" {
        return errors.New("url not set")
    }
    return nil
}

func (cd *CoreDNS) initPerServerMatcher() (matcher.Matcher, error) {
    if cd.PerServerStats.Empty() {
        return nil, nil
    }
    return cd.PerServerStats.Parse()
}

func (cd *CoreDNS) initPerZoneMatcher() (matcher.Matcher, error) {
    if cd.PerZoneStats.Empty() {
        return nil, nil
    }
    return cd.PerZoneStats.Parse()
}

func (cd *CoreDNS) initPrometheusClient() (prometheus.Prometheus, error) {
    client, err := web.NewHTTPClient(cd.Client)
    if err != nil {
        return nil, err
    }
    return prometheus.New(client, cd.Request), nil
}