1 files changed, 125 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/envoy/envoy.go b/src/go/collectors/go.d.plugin/modules/envoy/envoy.go
new file mode 100644
index 000000000..1450ef7dd
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/envoy/envoy.go
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package envoy
+
+import (
+	_ "embed"
+	"errors"
+	"time"
+
+	"github.com/netdata/netdata/go/go.d.plugin/agent/module"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/prometheus"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
+)
+
+//go:embed "config_schema.json"
+var configSchema string
+
+func init() {
+	module.Register("envoy", module.Creator{
+		JobConfigSchema: configSchema,
+		Create:          func() module.Module { return New() },
+	})
+}
+
+func New() *Envoy {
+	return &Envoy{
+		Config: Config{
+			HTTP: web.HTTP{
+				Request: web.Request{
+					URL: "http://127.0.0.1:9091/stats/prometheus",
+				},
+				Client: web.Client{
+					Timeout: web.Duration(time.Second),
+				},
+			},
+		},
+
+		charts: &module.Charts{},
+
+		servers:                 make(map[string]bool),
+		clusterMgrs:             make(map[string]bool),
+		clusterUpstream:         make(map[string]bool),
+		listenerMgrs:            make(map[string]bool),
+		listenerAdminDownstream: make(map[string]bool),
+		listenerDownstream:      make(map[string]bool),
+	}
+}
+
+type Config struct {
+	web.HTTP    `yaml:",inline" json:""`
+	UpdateEvery int `yaml:"update_every" json:"update_every"`
+}
+
+type Envoy struct {
+	module.Base
+	Config `yaml:",inline" json:""`
+
+	charts *module.Charts
+
+	prom prometheus.Prometheus
+
+	servers                 map[string]bool
+	clusterMgrs             map[string]bool
+	clusterUpstream         map[string]bool
+	listenerMgrs            map[string]bool
+	listenerAdminDownstream map[string]bool
+	listenerDownstream      map[string]bool
+}
+
+func (e *Envoy) Configuration() any {
+	return e.Config
+}
+
+func (e *Envoy) Init() error {
+	if err := e.validateConfig(); err != nil {
+		e.Errorf("config validation: %v", err)
+		return err
+	}
+
+	prom, err := e.initPrometheusClient()
+	if err != nil {
+		e.Errorf("init Prometheus client: %v", err)
+		return err
+	}
+	e.prom = prom
+
+	return nil
+}
+
+func (e *Envoy) Check() error {
+	mx, err := e.collect()
+	if err != nil {
+		e.Error(err)
+		return err
+	}
+	if len(mx) == 0 {
+		return errors.New("no metrics collected")
+
+	}
+	return nil
+}
+
+func (e *Envoy) Charts() *module.Charts {
+	return e.charts
+}
+
+func (e *Envoy) Collect() map[string]int64 {
+	mx, err := e.collect()
+	if err != nil {
+		e.Error(err)
+	}
+
+	if len(mx) == 0 {
+		return nil
+	}
+	return mx
+}
+
+func (e *Envoy) Cleanup() {
+	if e.prom == nil || e.prom.HTTPClient() == nil {
+		return
+	}
+
+	e.prom.HTTPClient().CloseIdleConnections()
+}