1 files changed, 127 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/openvpn/openvpn.go b/src/go/collectors/go.d.plugin/modules/openvpn/openvpn.go
new file mode 100644
index 000000000..0d4fbe419
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/openvpn/openvpn.go
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package openvpn
+
+import (
+	_ "embed"
+	"time"
+
+	"github.com/netdata/netdata/go/go.d.plugin/agent/module"
+	"github.com/netdata/netdata/go/go.d.plugin/modules/openvpn/client"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/matcher"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/socket"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
+)
+
+//go:embed "config_schema.json"
+var configSchema string
+
+func init() {
+	module.Register("openvpn", module.Creator{
+		JobConfigSchema: configSchema,
+		Create:          func() module.Module { return New() },
+	})
+}
+
+func New() *OpenVPN {
+	return &OpenVPN{
+		Config: Config{
+			Address: "127.0.0.1:7505",
+			Timeout: web.Duration(time.Second),
+		},
+
+		charts:         charts.Copy(),
+		collectedUsers: make(map[string]bool),
+	}
+}
+
+type Config struct {
+	UpdateEvery  int                `yaml:"update_every" json:"update_every"`
+	Address      string             `yaml:"address" json:"address"`
+	Timeout      web.Duration       `yaml:"timeout" json:"timeout"`
+	PerUserStats matcher.SimpleExpr `yaml:"per_user_stats" json:"per_user_stats"`
+}
+
+type (
+	OpenVPN struct {
+		module.Base
+		Config `yaml:",inline" json:""`
+
+		charts *Charts
+
+		client openVPNClient
+
+		collectedUsers map[string]bool
+		perUserMatcher matcher.Matcher
+	}
+	openVPNClient interface {
+		socket.Client
+		Version() (*client.Version, error)
+		LoadStats() (*client.LoadStats, error)
+		Users() (client.Users, error)
+	}
+)
+
+func (o *OpenVPN) Configuration() any {
+	return o.Config
+}
+
+func (o *OpenVPN) Init() error {
+	if err := o.validateConfig(); err != nil {
+		o.Error(err)
+		return err
+	}
+
+	m, err := o.initPerUserMatcher()
+	if err != nil {
+		o.Error(err)
+		return err
+	}
+	o.perUserMatcher = m
+
+	o.client = o.initClient()
+
+	o.Infof("using address: %s, timeout: %s", o.Address, o.Timeout)
+
+	return nil
+}
+
+func (o *OpenVPN) Check() error {
+	if err := o.client.Connect(); err != nil {
+		o.Error(err)
+		return err
+	}
+	defer func() { _ = o.client.Disconnect() }()
+
+	ver, err := o.client.Version()
+	if err != nil {
+		o.Error(err)
+		o.Cleanup()
+		return err
+	}
+
+	o.Infof("connected to OpenVPN v%d.%d.%d, Management v%d", ver.Major, ver.Minor, ver.Patch, ver.Management)
+
+	return nil
+}
+
+func (o *OpenVPN) Charts() *Charts { return o.charts }
+
+func (o *OpenVPN) Collect() map[string]int64 {
+	mx, err := o.collect()
+	if err != nil {
+		o.Error(err)
+	}
+
+	if len(mx) == 0 {
+		return nil
+	}
+	return mx
+}
+
+func (o *OpenVPN) Cleanup() {
+	if o.client == nil {
+		return
+	}
+	_ = o.client.Disconnect()
+}