As part of this change, the code responsible for managing the sandbox
image within the kubelet has been removed. Previously, the kubelet used
to prevent sandbox image from the garbage collection process. However,
with this update, the responsibility of managing the sandbox containers
has been shifted to the CRI implementation itself. By allowing sandbox
image pinning from CRI, we improve efficiency and simplify the kubelet's
interaction with the container runtime. As a result, the kubelet can now
rely on the container runtime's built-in mechanisms for sandbox container
lifecycle management.
Signed-off-by: Sohan Kunkerkar <sohank2602@gmail.com>
7a63997c8a added a global variable which gets set multiple times by
different goroutines in integration tests, leading to a data race:
WARNING: DATA RACE
Write at 0x00000a626928 by goroutine 87080:
k8s.io/kubernetes/vendor/k8s.io/apiserver/pkg/storage/etcd3/metrics.SetStorageMonitorGetter()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apiserver/pkg/storage/etcd3/metrics/metrics.go:231 +0x104
k8s.io/kubernetes/vendor/k8s.io/apiserver/pkg/server/options.(*EtcdOptions).ApplyWithStorageFactoryTo()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apiserver/pkg/server/options/etcd.go:242 +0xbd
k8s.io/kubernetes/pkg/controlplane/apiserver.BuildGenericConfig()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/pkg/controlplane/apiserver/config.go:124 +0x1c3d
k8s.io/kubernetes/cmd/kube-apiserver/app.CreateKubeAPIServerConfig()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/cmd/kube-apiserver/app/server.go:218 +0xeb
k8s.io/kubernetes/cmd/kube-apiserver/app.NewConfig()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/cmd/kube-apiserver/app/config.go:74 +0xd5
k8s.io/kubernetes/cmd/kube-apiserver/app/testing.StartTestServer()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/cmd/kube-apiserver/app/testing/testserver.go:299 +0x2e97
k8s.io/kubernetes/cmd/kube-apiserver/app/testing.StartTestServerOrDie()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/cmd/kube-apiserver/app/testing/testserver.go:423 +0xb2
k8s.io/kubernetes/test/integration/controlplane.testReconcilersAPIServerLease.func3()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/test/integration/controlplane/kube_apiserver_test.go:486 +0x1dd
k8s.io/kubernetes/test/integration/controlplane.testReconcilersAPIServerLease.func7()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/test/integration/controlplane/kube_apiserver_test.go:488 +0x47
Previous write at 0x00000a626928 by goroutine 87079:
k8s.io/kubernetes/vendor/k8s.io/apiserver/pkg/storage/etcd3/metrics.SetStorageMonitorGetter()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apiserver/pkg/storage/etcd3/metrics/metrics.go:231 +0x104
k8s.io/kubernetes/vendor/k8s.io/apiserver/pkg/server/options.(*EtcdOptions).ApplyWithStorageFactoryTo()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apiserver/pkg/server/options/etcd.go:242 +0xbd
k8s.io/kubernetes/pkg/controlplane/apiserver.BuildGenericConfig()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/pkg/controlplane/apiserver/config.go:124 +0x1c3d
k8s.io/kubernetes/cmd/kube-apiserver/app.CreateKubeAPIServerConfig()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/cmd/kube-apiserver/app/server.go:218 +0xeb
k8s.io/kubernetes/cmd/kube-apiserver/app.NewConfig()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/cmd/kube-apiserver/app/config.go:74 +0xd5
k8s.io/kubernetes/cmd/kube-apiserver/app/testing.StartTestServer()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/cmd/kube-apiserver/app/testing/testserver.go:299 +0x2e97
k8s.io/kubernetes/cmd/kube-apiserver/app/testing.StartTestServerOrDie()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/cmd/kube-apiserver/app/testing/testserver.go:423 +0xb2
k8s.io/kubernetes/test/integration/controlplane.testReconcilersAPIServerLease.func3()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/test/integration/controlplane/kube_apiserver_test.go:486 +0x1dd
k8s.io/kubernetes/test/integration/controlplane.testReconcilersAPIServerLease.func7()
/home/prow/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/test/integration/controlplane/kube_apiserver_test.go:488 +0x47
Mutex locking avoids the data race. Whether this variable really can be used
safely by those concurrent (?) tests is a different question...
