accept otel configmap keys

Signed-off-by: Haywood Shannon <[email protected]>

Signed-off-by: Haywood Shannon <[email protected]>

Author: haywoodsh

internal/configs/configmaps.go

@@ -578,6 +578,71 @@ func ParseConfigMap(ctx context.Context, cfgm *v1.ConfigMap, nginxPlus bool, has
 		cfgParams.MainOtelLoadModule = true
 	}
 
+	if otelExporterEndpoint, exists := cfgm.Data["otel-exporter-endpoint"]; exists {
+		otelExporterEndpoint = strings.TrimSpace(otelExporterEndpoint)
+		if otelExporterEndpoint != "" {
+			cfgParams.MainOtelExporterEndpoint = otelExporterEndpoint
+		}
+	}
+
+	if otelExporterTrustedCA, exists := cfgm.Data["otel-exporter-trusted-ca"]; exists {
+		otelExporterTrustedCA = strings.TrimSpace(otelExporterTrustedCA)
+		if otelExporterTrustedCA != "" {
+			cfgParams.MainOtelExporterTrustedCA = otelExporterTrustedCA
+		}
+	}
+
+	if otelExporterHeaderName, exists := cfgm.Data["otel-exporter-header-name"]; exists {
+		otelExporterHeaderName = strings.TrimSpace(otelExporterHeaderName)
+		if otelExporterHeaderName != "" {
+			cfgParams.MainOtelExporterHeaderName = otelExporterHeaderName
+		}
+	}
+
+	if otelExporterHeaderValue, exists := cfgm.Data["otel-exporter-header-value"]; exists {
+		otelExporterHeaderValue = strings.TrimSpace(otelExporterHeaderValue)
+		if otelExporterHeaderValue != "" {
+			cfgParams.MainOtelExporterHeaderValue = otelExporterHeaderValue
+		}
+	}
+
+	if otelServiceName, exists := cfgm.Data["otel-service-name"]; exists {
+		otelServiceName = strings.TrimSpace(otelServiceName)
+		if otelServiceName != "" {
+			cfgParams.MainOtelServiceName = otelServiceName
+		}
+	}
+
+	if otelGlobalTraceEnabled, exists, err := GetMapKeyAsBool(cfgm.Data, "otel-global-trace-enabled", cfgm); exists {
+		if err != nil {
+			nl.Error(l, err)
+			eventLog.Event(cfgm, v1.EventTypeWarning, nl.EventReasonInvalidValue, err.Error())
+			configOk = false
+		}
+		cfgParams.MainOtelGlobalTraceEnabled = otelGlobalTraceEnabled
+	}
+
+	if cfgParams.MainOtelExporterEndpoint != "" {
+		cfgParams.MainOtelLoadModule = true
+	}
+
+	if otelEnabled, exists, err := GetMapKeyAsBool(cfgm.Data, "otel-enabled", cfgm); exists {
+		if err != nil {
+			nl.Error(l, err)
+			eventLog.Event(cfgm, v1.EventTypeWarning, nl.EventReasonInvalidValue, err.Error())
+			configOk = false
+		} else {
+			if cfgParams.MainOtelLoadModule {
+				cfgParams.MainOtelEnabled = otelEnabled
+			} else {
+				errorText := fmt.Sprintf("ConfigMap %s/%s: 'otel-enabled' is ignored because 'otel-exporter-endpoint' is not set, ignoring", cfgm.GetNamespace(), cfgm.GetName())
+				nl.Error(l, errorText)
+				eventLog.Event(cfgm, v1.EventTypeWarning, nl.EventReasonInvalidValue, errorText)
+				configOk = false
+			}
+		}
+	}
+
 	if hasAppProtect {
 		if appProtectFailureModeAction, exists := cfgm.Data["app-protect-failure-mode-action"]; exists {
 			if appProtectFailureModeAction == "pass" || appProtectFailureModeAction == "drop" {

internal/configs/version1/nginx-plus.tmpl

@@ -145,6 +145,22 @@ http {
     {{- if .SSLDHParam}}
     ssl_dhparam {{.SSLDHParam}};
     {{- end}}
+    
+    {{- if .MainOtelEnabled}}
+    # otel_exporter {
+    #    endpoint {{ .MainOtelExporterEndpoint}};
+    #   header {{ .MainOtelExporterHeaderName }} {{ .MainOtelExporterHeaderValue }};
+        {{ if .MainOtelExporterTrustedCA}}
+    #   trusted_certificate <path>;
+        {{- end }}
+    {{ if .MainOtelServiceName}}
+     # otel_service_name {{ .MainOtelServiceName }};
+    # }
+    {{- end }}
+    {{ if .MainOtelGlobalTraceEnabled }}
+     # otel_trace on;
+    {{- end}}
+    {{- end}}
 
     {{- if .MainOtelLoadModule}}
     otel_exporter {