feat: 初步集成 zabbix agent

integration/zabbixagent/plugin/handler/handler.go

@@ -0,0 +1,43 @@
+package handler
+
+import (
+	"context"
+	"net/http"
+	"os"
+)
+
+// HandlerFunc describes the signature all metric handler functions must have.
+type HandlerFunc func(
+	ctx context.Context,
+	metricParams map[string]string,
+	extraParams ...string,
+) (any, error)
+
+// Handler hold client and syscall implementation for request functions.
+type Handler struct {
+	client   *http.Client
+	sysCalls systemCalls
+}
+
+type systemCalls interface {
+	environ() []string
+	lookupEnv(key string) (string, bool)
+}
+
+type osWrapper struct{}
+
+// New creates a new handler with initialized clients for system and tcp calls.
+func New() *Handler {
+	return &Handler{
+		client:   http.DefaultClient,
+		sysCalls: osWrapper{},
+	}
+}
+
+func (osWrapper) environ() []string {
+	return os.Environ()
+}
+
+func (osWrapper) lookupEnv(key string) (string, bool) {
+	return os.LookupEnv(key)
+}

integration/zabbixagent/plugin/plguin.go

@@ -0,0 +1,102 @@
+package plugin
+
+import (
+	"golang.zabbix.com/sdk/errs"
+	"golang.zabbix.com/sdk/metric"
+	"golang.zabbix.com/sdk/plugin"
+	"golang.zabbix.com/sdk/plugin/container"
+	"onvif-agent/config"
+	"onvif-agent/integration/zabbixagent/plugin/handler"
+)
+
+var (
+	Name = config.Conf.Integrations.ZabbixAgent.Plugin.Name
+)
+
+type onvifMetricKey string
+
+type onvifMetric struct {
+	metric  *metric.Metric
+	handler handler.HandlerFunc
+}
+
+type onvifPlugin struct {
+	plugin.Base
+	metrics map[onvifMetricKey]*onvifMetric
+}
+
+// Launch launches the plugin. Blocks until plugin execution has finished.
+func Launch() error {
+	p := &onvifPlugin{}
+
+	err := p.registerMetrics()
+	if err != nil {
+		return err
+	}
+
+	h, err := container.NewHandler(Name)
+	if err != nil {
+		return errs.Wrap(err, "failed to create new handler")
+	}
+
+	p.Logger = &h
+
+	err = h.Execute()
+	if err != nil {
+		return errs.Wrap(err, "failed to execute plugin handler")
+	}
+
+	return nil
+}
+
+// Start starts the example plugin. Is required for plugin to match runner interface.
+func (p *onvifPlugin) Start() {
+	p.Logger.Infof("Start called")
+}
+
+// Stop stops the example plugin. Is required for plugin to match runner interface.
+func (p *onvifPlugin) Stop() {
+	p.Logger.Infof("Stop called")
+}
+
+func (p *onvifPlugin) registerMetrics() error {
+	//h := handler.New()
+
+	p.metrics = map[onvifMetricKey]*onvifMetric{
+		//myIPMetric: {
+		//	metric: metric.New(
+		//		"Returns the availability groups.",
+		//		params.Params,
+		//		false,
+		//	),
+		//	handler: handler.WithJSONResponse(
+		//		handler.WithCredentialValidation(
+		//			h.MyIP,
+		//		),
+		//	),
+		//},
+		//goEnvMetric: {
+		//	metric: metric.New(
+		//		"Returns the result rows of a custom query.",
+		//		params.Params,
+		//		true,
+		//	),
+		//	handler: handler.WithJSONResponse(
+		//		handler.WithCredentialValidation(handler.GoEnvironment),
+		//	),
+		//},
+	}
+
+	metricSet := metric.MetricSet{}
+
+	for k, m := range p.metrics {
+		metricSet[string(k)] = m.metric
+	}
+
+	err := plugin.RegisterMetrics(p, Name, metricSet.List()...)
+	if err != nil {
+		return errs.Wrap(err, "failed to register metrics")
+	}
+
+	return nil
+}