From e18a523fcc5fc19cd02817decfb79d7f5806d36a Mon Sep 17 00:00:00 2001
From: Elena Nuretdinova <elena.nuretdinova@booking.com>
Date: Fri, 12 Jan 2024 16:41:38 +0100
Subject: [PATCH] Add comment & fix lint

---
 exporters/otlp/otlpmetric/otlpmetrichttp/config.go       | 9 +++++++++
 .../otlpmetrichttp/internal/otest/collector.go           | 2 +-
 .../otlptracehttp/internal/otlpconfig/options.go         | 2 +-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/exporters/otlp/otlpmetric/otlpmetrichttp/config.go b/exporters/otlp/otlpmetric/otlpmetrichttp/config.go
index 7a3b2ddde3c..e735dacd8ef 100644
--- a/exporters/otlp/otlpmetric/otlpmetrichttp/config.go
+++ b/exporters/otlp/otlpmetric/otlpmetrichttp/config.go
@@ -150,6 +150,15 @@ func WithHeaders(headers map[string]string) Option {
 }
 
 // WithHostHeader overrides Host header in HTTP requests.
+//
+// The example of the use case is using load balancer like envoy between
+// the otel instrumentation library and collector. Typically
+// the call via envoy's route is based on the host header. Example of the usage
+//
+// config.WithEndpoint("myenvoyhost")
+//
+//	.WithHostHeader("mytargetotelcollectorhost")
+//
 // If unset, the target Endpoint's host will be used as Host header.
 func WithHostHeader(host string) Option {
 	return wrappedOption{oconf.WithHostHeader(host)}
diff --git a/exporters/otlp/otlpmetric/otlpmetrichttp/internal/otest/collector.go b/exporters/otlp/otlpmetric/otlpmetrichttp/internal/otest/collector.go
index 870f2f76b56..f143b2f2a8e 100644
--- a/exporters/otlp/otlpmetric/otlpmetrichttp/internal/otest/collector.go
+++ b/exporters/otlp/otlpmetric/otlpmetrichttp/internal/otest/collector.go
@@ -15,7 +15,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package otest
+package otest // import "go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp/internal/otest"
 
 import (
 	"bytes"
diff --git a/exporters/otlp/otlptrace/otlptracehttp/internal/otlpconfig/options.go b/exporters/otlp/otlptrace/otlptracehttp/internal/otlpconfig/options.go
index 41b175e7230..460c71dadb9 100644
--- a/exporters/otlp/otlptrace/otlptracehttp/internal/otlpconfig/options.go
+++ b/exporters/otlp/otlptrace/otlptracehttp/internal/otlpconfig/options.go
@@ -15,7 +15,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package otlpconfig
+package otlpconfig // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/internal/otlpconfig"
 
 import (
 	"crypto/tls"