Bump CI default version of Go to 1.20 (#3396)

* Bump default ver Go 1.20 in CI

* Remove use of dep rand.Seed in otelsarama example

* Add PR number to changelog

---------

Co-authored-by: Chester Cheung <[email protected]>

.github/workflows/ci.yml

@@ -7,8 +7,14 @@ on:
 env:
   # path to where test results will be saved
   TEST_RESULTS: /tmp/test-results
-  # Default minimum version of Go to support.
-  DEFAULT_GO_VERSION: 1.19
+  # Default version of Go to use by CI workflows. This should be the latest
+  # release of Go; developers likely use the latest release in development and
+  # we want to catch any bugs (e.g. lint errors, race detection) with this
+  # release before they are merged. The Go compatibility guarantees ensure
+  # backwards compatibility with the previous two minor releases and we
+  # explicitly test our code for these versions so keeping this at prior
+  # versions does not add value.
+  DEFAULT_GO_VERSION: "1.20"
 jobs:
   lint:
     runs-on: ubuntu-latest

CHANGELOG.md

@@ -17,6 +17,10 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 - `samplers/jaegerremote`: change to use protobuf parser instead of encoding/json to accept enums as strings. (#3183)
 
+### Fixed
+
+- Remove use of deprecated `"math/rand".Seed` in `go.opentelemetry.io/contrib/instrumentation/github.com/Shopify/sarama/otelsarama/example/producer`. (#3396)
+
 ## [1.14.0/0.39.0/0.8.0] - 2023-02-07
 
 ### Changed

instrumentation/github.com/Shopify/sarama/otelsarama/example/producer/producer.go

@@ -62,18 +62,17 @@ func main() {
 		log.Fatal(err)
 	}
 
-	rand.Seed(time.Now().Unix())
-
 	// Create root span
 	tr := otel.Tracer("producer")
 	ctx, span := tr.Start(context.Background(), "produce message")
 	defer span.End()
 
 	// Inject tracing info into message
+	rng := rand.New(rand.NewSource(time.Now().Unix()))
 	msg := sarama.ProducerMessage{
 		Topic: example.KafkaTopic,
 		Key:   sarama.StringEncoder("random_number"),
-		Value: sarama.StringEncoder(fmt.Sprintf("%d", rand.Intn(1000))),
+		Value: sarama.StringEncoder(fmt.Sprintf("%d", rng.Intn(1000))),
 	}
 	otel.GetTextMapPropagator().Inject(ctx, otelsarama.NewProducerMessageCarrier(&msg))