update dependencies to latest otel v1.11.2 (#11)

* update dependencies to latest otel v1.11.2

Also discovered a bug in the test harness, fixed it.

* newer otel & deps needs Go 1.17 or greater

* actually go 1.18

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Setup
         uses: actions/setup-go@v2
         with:
-          go-version: 1.16
+          go-version: 1.18
       - name: Build otelinit
         run: go build -v ./...
       - name: Build test stub

cmd/test-otel-init-go/main_test.go

@@ -11,6 +11,7 @@ package main
 // [ ] use random ports for listener address?
 
 import (
+	"bytes"
 	"encoding/json"
 	"fmt"
 	"io/fs"
@@ -44,7 +45,7 @@ type CliEvent struct {
 	Events     []CliEvent        // reader code will stuff kind=event in here
 }
 
-//                 tid        sid
+// --------------- tid        sid
 type CliEvents map[string]map[string]CliEvent
 
 // StubData is the structure of the data that the stub program
@@ -196,13 +197,18 @@ func runPrograms(t *testing.T, scenario Scenario) (StubData, CliEvents) {
 
 	// MAYBE: server json --stdout is maybe better? and could add a graceful exit on closed fds
 	otelcli := exec.Command(otelCliPath, cliArgs...)
-	otelcli.Env = []string{"PATH=/bin"} // apparently this is required for 'getent', no idea why
+	otelcli.Env = []string{"PATH=/bin"} // apparently PATH=/bin is required for 'getent', no idea why
+	var b bytes.Buffer
+	otelcli.Stdout = &b
+	otelcli.Stderr = &b
 
 	if !scenario.SkipOtelCli {
+		// run otel-cli server in the background
 		go func() {
-			err, output := otelcli.CombinedOutput()
+			err := otelcli.Start()
+			otelcli.Wait() // don't check error, it's fast and errors a lot for no reason
 			if err != nil {
-				log.Println(output)
+				log.Println(b.String())
 				log.Fatalf("Executing command %q failed: %s", otelcli.String(), err)
 			}
 		}()

go.mod

@@ -1,12 +1,28 @@
 module github.com/equinix-labs/otel-init-go
 
-go 1.15
+go 1.18
 
 require (
-	github.com/google/go-cmp v0.5.6
-	go.opentelemetry.io/otel v1.3.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.3.0
-	go.opentelemetry.io/otel/sdk v1.3.0
-	go.opentelemetry.io/otel/trace v1.3.0
-	google.golang.org/grpc v1.44.0
+	github.com/google/go-cmp v0.5.9
+	go.opentelemetry.io/otel v1.11.2
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.11.2
+	go.opentelemetry.io/otel/sdk v1.11.2
+	go.opentelemetry.io/otel/trace v1.11.2
+	google.golang.org/grpc v1.51.0
+)
+
+require (
+	github.com/cenkalti/backoff/v4 v4.2.0 // indirect
+	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.7.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.11.2 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.11.2 // indirect
+	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
+	golang.org/x/net v0.0.0-20220722155237-a158d28d115b // indirect
+	golang.org/x/sys v0.0.0-20220919091848-fb04ddd9f9c8 // indirect
+	golang.org/x/text v0.4.0 // indirect
+	google.golang.org/genproto v0.0.0-20211118181313-81c1377c94b1 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
 )