Add metadata.source to logs and populate it with the value "lambda-extension"

Author: TheTeaCat

firetail/log_entry.go

@@ -25,6 +25,7 @@ type LogEntry struct {
 	Request       LogEntryRequest  `json:"request"`
 	Response      LogEntryResponse `json:"response"`
 	Version       LogEntryVersion  `json:"version"` // The version of the firetail logging schema used
+	Metadata      LogEntryMetadata `json:"metadata"`
 }
 
 type LogEntryRequest struct {
@@ -103,6 +104,10 @@ const (
 // The version of the firetail logging schema used
 type LogEntryVersion string
 
+type LogEntryMetadata struct {
+	Source string `json:"source"`
+}
+
 const (
 	The100Alpha LogEntryVersion = "1.0.0-alpha"
 )

firetail/send_records_to_saas.go

@@ -40,6 +40,9 @@ func SendRecordsToSaaS(records []Record, apiUrl, apiKey string) (int, error) {
 				StatusCode: record.Response.StatusCode,
 			},
 			Version: The100Alpha,
+			Metadata: LogEntryMetadata{
+				Source: "lambda-extension",
+			},
 		})
 		if err != nil {
 			errs = multierror.Append(errs, fmt.Errorf("Err marshalling record to bytes, err: %s", err.Error()))