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feat(otel): onboard atecontroller to the OTLP path #754
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Merged
Eitan Yarmush (EItanya)
merged 2 commits into
agent-substrate:main
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krisztianfekete:chore/onboard-atecontroller-to-otel
Aug 6, 2026
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| // Copyright 2026 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "log/slog" | ||
| "slices" | ||
| "strings" | ||
| "testing" | ||
|
|
||
| prombridge "go.opentelemetry.io/contrib/bridges/prometheus" | ||
| ctrlmetrics "sigs.k8s.io/controller-runtime/pkg/metrics" | ||
| ) | ||
|
|
||
| func TestNewControllerRuntimeLoggerVerbosity(t *testing.T) { | ||
| const probe = "verbosity-probe" | ||
|
|
||
| tests := []struct { | ||
| name string | ||
| level slog.Level | ||
| verbosity int | ||
| wantLog bool | ||
| }{ | ||
| {name: "info keeps V(0)", level: slog.LevelInfo, verbosity: 0, wantLog: true}, | ||
| {name: "info drops V(1)", level: slog.LevelInfo, verbosity: 1, wantLog: false}, | ||
| {name: "debug keeps V(1)", level: slog.LevelDebug, verbosity: 1, wantLog: true}, | ||
| } | ||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| t.Parallel() | ||
| var buf strings.Builder | ||
| log := newControllerRuntimeLogger(slog.NewJSONHandler(&buf, &slog.HandlerOptions{Level: tt.level})) | ||
|
|
||
| log.V(tt.verbosity).Info(probe) | ||
|
|
||
| if got := strings.Contains(buf.String(), probe); got != tt.wantLog { | ||
| t.Errorf("logged = %v, want %v (output %q)", got, tt.wantLog, buf.String()) | ||
| } | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| // The e2e read-back asserts atecontroller reaches the collector, which holds only | ||
| // because the bridged registry already has series before any manager starts: the | ||
| // controller_runtime_* vectors are empty until controllers register, so the Go and | ||
| // process collectors are what make the first push non-empty. | ||
| func TestBridgedRegistryProducesBeforeManagerStart(t *testing.T) { | ||
| t.Parallel() | ||
|
|
||
| produced, err := prombridge.NewMetricProducer(prombridge.WithGatherer(ctrlmetrics.Registry)). | ||
| Produce(context.Background()) | ||
| if err != nil { | ||
| t.Fatalf("Produce: %v", err) | ||
| } | ||
|
|
||
| var names []string | ||
| for _, sm := range produced { | ||
| for _, m := range sm.Metrics { | ||
| names = append(names, m.Name) | ||
| } | ||
| } | ||
| if len(names) == 0 { | ||
| t.Fatal("bridging controller-runtime's registry produced no metrics") | ||
| } | ||
| if !slices.ContainsFunc(names, func(n string) bool { return strings.HasPrefix(n, "go_") }) { | ||
| t.Errorf("no go_* family in %v", names) | ||
| } | ||
| } |
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