Data race caused by controller-runtime

[toshipp]

A data race is detected.
https://github.com/topolvm/pvc-autoresizer/runs/3045524747

WARNING: DATA RACE
Write at 0x00c00000c368 by goroutine 37:
  internal/race.Write()
      /opt/hostedtoolcache/go/1.16.5/x64/src/internal/race/race.go:41 +0x125
  sync.(*WaitGroup).Wait()
      /opt/hostedtoolcache/go/1.16.5/x64/src/sync/waitgroup.go:128 +0x126
  sigs.k8s.io/controller-runtime/pkg/manager.(*controllerManager).waitForRunnableToEnd.func2()
      /home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.9.2/pkg/manager/internal.go:565 +0x44

Previous read at 0x00c00000c368 by goroutine 128:
  internal/race.Read()
      /opt/hostedtoolcache/go/1.16.5/x64/src/internal/race/race.go:37 +0x206
  sync.(*WaitGroup).Add()
      /opt/hostedtoolcache/go/1.16.5/x64/src/sync/waitgroup.go:71 +0x219
  sigs.k8s.io/controller-runtime/pkg/manager.(*controllerManager).startRunnable()
      /home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.9.2/pkg/manager/internal.go:693 +0x4e
  sigs.k8s.io/controller-runtime/pkg/manager.(*controllerManager).serveMetrics()
      /home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.9.2/pkg/manager/internal.go:382 +0x31b

Goroutine 37 (running) created at:
  sigs.k8s.io/controller-runtime/pkg/manager.(*controllerManager).waitForRunnableToEnd()
      /home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.9.2/pkg/manager/internal.go:564 +0xcb
  sigs.k8s.io/controller-runtime/pkg/manager.(*controllerManager).engageStopProcedure()
      /home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.9.2/pkg/manager/internal.go:546 +0x376
  sigs.k8s.io/controller-runtime/pkg/manager.(*controllerManager).Start.func1()
      /home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.9.2/pkg/manager/internal.go:447 +0x46
  sigs.k8s.io/controller-runtime/pkg/manager.(*controllerManager).Start()
      /home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.9.2/pkg/manager/internal.go:497 +0x575
  github.com/topolvm/pvc-autoresizer/runners.glob..func2.1()
      /home/runner/work/pvc-autoresizer/pvc-autoresizer/runners/suite_test.go:82 +0x5c

Goroutine 128 (finished) created at:
  sigs.k8s.io/controller-runtime/pkg/manager.(*controllerManager).Start()
      /home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.9.2/pkg/manager/internal.go:471 +0x61b
  github.com/topolvm/pvc-autoresizer/runners.glob..func2.1()
      /home/runner/work/pvc-autoresizer/pvc-autoresizer/runners/suite_test.go:82 +0x5c

This has been already reported to controller-runtime.
kubernetes-sigs/controller-runtime#1442

[llamerada-jp]

may be fixed in controller-runtime v0.11.0.
applied in #92