1 files changed, 40 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/coredns/init.go b/src/go/collectors/go.d.plugin/modules/coredns/init.go
new file mode 100644
index 000000000..1e3a7be5c
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/coredns/init.go
@@ -0,0 +1,40 @@
+// 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
+}