1 files changed, 100 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/portcheck/portcheck.go b/src/go/collectors/go.d.plugin/modules/portcheck/portcheck.go
new file mode 100644
index 000000000..839059e1b
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/portcheck/portcheck.go
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package portcheck
+
+import (
+	_ "embed"
+	"net"
+	"time"
+
+	"github.com/netdata/netdata/go/go.d.plugin/agent/module"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
+)
+
+//go:embed "config_schema.json"
+var configSchema string
+
+func init() {
+	module.Register("portcheck", module.Creator{
+		JobConfigSchema: configSchema,
+		Defaults: module.Defaults{
+			UpdateEvery: 5,
+		},
+		Create: func() module.Module { return New() },
+	})
+}
+
+func New() *PortCheck {
+	return &PortCheck{
+		Config: Config{
+			Timeout: web.Duration(time.Second * 2),
+		},
+		dial: net.DialTimeout,
+	}
+}
+
+type Config struct {
+	UpdateEvery int          `yaml:"update_every" json:"update_every"`
+	Host        string       `yaml:"host" json:"host"`
+	Ports       []int        `yaml:"ports" json:"ports"`
+	Timeout     web.Duration `yaml:"timeout" json:"timeout"`
+}
+
+type PortCheck struct {
+	module.Base
+	Config `yaml:",inline" json:""`
+
+	charts *module.Charts
+
+	dial dialFunc
+
+	ports []*port
+}
+
+func (pc *PortCheck) Configuration() any {
+	return pc.Config
+}
+
+func (pc *PortCheck) Init() error {
+	if err := pc.validateConfig(); err != nil {
+		pc.Errorf("config validation: %v", err)
+		return err
+	}
+
+	charts, err := pc.initCharts()
+	if err != nil {
+		pc.Errorf("init charts: %v", err)
+		return err
+	}
+	pc.charts = charts
+
+	pc.ports = pc.initPorts()
+
+	pc.Debugf("using host: %s", pc.Host)
+	pc.Debugf("using ports: %v", pc.Ports)
+	pc.Debugf("using TCP connection timeout: %s", pc.Timeout)
+
+	return nil
+}
+
+func (pc *PortCheck) Check() error {
+	return nil
+}
+
+func (pc *PortCheck) Charts() *module.Charts {
+	return pc.charts
+}
+
+func (pc *PortCheck) Collect() map[string]int64 {
+	mx, err := pc.collect()
+	if err != nil {
+		pc.Error(err)
+	}
+
+	if len(mx) == 0 {
+		return nil
+	}
+	return mx
+}
+
+func (pc *PortCheck) Cleanup() {}