v1.0.2

.github/workflows/upload-zip.yaml

@@ -0,0 +1,24 @@
+name: Upload release
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  upload:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.17
+      - name: Build function
+        run: make function
+      - name: Upload release asset
+        uses: actions/upload-release-asset@v1
+        with:
+          asset_path: ./function.zip
+          asset_name: function.zip
+          asset_content_type: application/zip

README.md

@@ -20,3 +20,16 @@ This function has the following limitations:
 
 - It can only process metrics data in OTLP 0.7 format.
 - It can only forward the data to a Prometheus Remote Write endpoint.
+
+### Changelog
+
+- v1.0.2
+  - Stop trying to send bulks if encountered 401 status code
+  - Add logzio identifier to each log (5 last chars of the shipping token)
+  - Add zip workflow and artifact
+- v1.0.1
+  - Improved logging (Add `zap` logger)
+  - Add metadata (AWS account, firehose request id, lambda invocation id) to each log for context
+  - Flush buffered logs if exists, before the function run ends
+- v1.0.0
+  - Initial release: Lambda function that receives OTLP (0.7.0) data from AWS metric stream and exports the data to logz.io using Prometheus remote write

handler/handler.go

@@ -87,9 +87,10 @@ func generateValidFirehoseResponse(statusCode int, requestId string, errorMessag
 		}
 	}
 }
-func initLogger(ctx context.Context, request events.APIGatewayProxyRequest) zap.SugaredLogger {
+func initLogger(ctx context.Context, request events.APIGatewayProxyRequest, token string) zap.SugaredLogger {
 	awsRequestId := ""
 	account := ""
+	logzioIdentifier := ""
 	lambdaContext, ok := lambdacontext.FromContext(ctx)
 	if ok {
 		awsRequestId = lambdaContext.AwsRequestID
@@ -98,14 +99,18 @@ func initLogger(ctx context.Context, request events.APIGatewayProxyRequest) zap.
 	if len(awsAccount) > 4 {
 		account = awsAccount[4]
 	}
+	if len(token) >= 5 {
+		logzioIdentifier = token[len(token)-5:]
+	}
 	firehoseRequestId := request.Headers["X-Amz-Firehose-Request-Id"]
 	config := zap.NewProductionConfig()
 	config.EncoderConfig.StacktraceKey = "" // to hide stacktrace info
 	config.OutputPaths = []string{"stdout"} // write to stdout
 	config.InitialFields = map[string]interface{}{
-		"aws_account":          account,
-		"lambda_invocation_id": awsRequestId,
-		"firehose_request_id":  firehoseRequestId,
+		"aws_account":               account,
+		"lambda_invocation_id":      awsRequestId,
+		"firehose_request_id":       firehoseRequestId,
+		"logzio_account_identifier": logzioIdentifier,
 	}
 	logger, configErr := config.Build()
 	if configErr != nil {
@@ -250,13 +255,9 @@ func summaryValuesToMetrics(metricsToSendSlice pdata.InstrumentationLibraryMetri
 	}
 }
 func HandleRequest(ctx context.Context, request events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
-	log := initLogger(ctx, request)
-	// flush buffered logs if exists, before the function run ends
-	defer log.Sync()
 	metricCount := 0
 	dataPointCount := 0
 	shippingErrors := new(ErrorCollector)
-	log.Infof("Getting access key from headers")
 	// get requestId to match firehose response requirements
 	requestId := request.Headers["X-Amz-Firehose-Request-Id"]
 	if requestId == "" {
@@ -266,6 +267,9 @@ func HandleRequest(ctx context.Context, request events.APIGatewayProxyRequest) (
 	if LogzioToken == "" {
 		LogzioToken = request.Headers["x-amz-firehose-access-key"]
 	}
+	log := initLogger(ctx, request, LogzioToken)
+	// flush buffered logs if exists, before the function run ends
+	defer log.Sync()
 	if LogzioToken == "" {
 		accessKeyErr := errors.New("cant find access key in 'X-Amz-Firehose-Access-Key' or 'x-amz-firehose-access-key' headers")
 		log.Error(accessKeyErr)
@@ -368,6 +372,9 @@ func HandleRequest(ctx context.Context, request events.APIGatewayProxyRequest) (
 		err = metricsExporter.PushMetrics(ctx, metricsToSend)
 		if err != nil {
 			log.Warnf("Error while sending metrics: %s", err)
+			if strings.Contains(err.Error(), "status 401") {
+				return generateValidFirehoseResponse(400, requestId, "Error while sending metrics:", err), nil
+			}
 			shippingErrors.Collect(err)
 		} else {
 			numberOfMetrics, numberOfDataPoints := metricsToSend.MetricAndDataPointCount()

handler/handler_test.go

@@ -74,7 +74,7 @@ func TestHandleRequestErrors(t *testing.T) {
 		expected int
 	}
 	var getListenerUrlTests = []getListenerUrlTest{
-		{"noValidToken", 500},
+		{"noValidToken", 400},
 		{"noToken", 400},
 		{"malformedBody", 400},
 		{"simpleevent", 400},