Add varcheck, deadcode, and mispell linters

.golangci.yml

@@ -12,3 +12,6 @@ linters:
     - goconst
     - goimports
     - unused
+    - varcheck
+    - deadcode
+    - misspell

cmd/virtual-kubelet/internal/commands/root/tracing_register.go

@@ -29,7 +29,7 @@ var (
 )
 
 // TracingExporterInitFunc is the function that is called to initialize an exporter.
-// This is used when registering an exporter and called when a user specifed they want to use the exporter.
+// This is used when registering an exporter and called when a user specified they want to use the exporter.
 type TracingExporterInitFunc func(TracingExporterOptions) (trace.Exporter, error)
 
 // RegisterTracingExporter registers a tracing exporter.

node/env_internal_test.go

@@ -663,7 +663,7 @@ func TestEnvFromConfigMapAndSecretWithInvalidKeys(t *testing.T) {
 }
 
 // TestEnvOverridesEnvFrom populates the environment of a container from a configmap, and from another configmap's key with a "conflicting" key.
-// Then, it checks that the value of the "conflicting" key has been correctly overriden.
+// Then, it checks that the value of the "conflicting" key has been correctly overridden.
 func TestEnvOverridesEnvFrom(t *testing.T) {
 	rm := testutil.FakeResourceManager(configMap3)
 	er := testutil.FakeEventRecorder(defaultEventRecorderBufferSize)
@@ -672,7 +672,7 @@ func TestEnvOverridesEnvFrom(t *testing.T) {
 	override := "__override__"
 
 	// Create a pod object having a single container.
-	// The container's environment is to be populated from a configmap, and later overriden with a value provided directly.
+	// The container's environment is to be populated from a configmap, and later overridden with a value provided directly.
 	pod := &corev1.Pod{
 		ObjectMeta: metav1.ObjectMeta{
 			Namespace: namespace,

node/pod_test.go

@@ -303,7 +303,7 @@ func TestFetchPodStatusFromProviderWithExpiredPod(t *testing.T) {
 	pod.Status.Phase = corev1.PodRunning
 	containerStatus := corev1.ContainerStatus{}
 
-	// We should terminate containters in a pod that has not provided pod status update for more than a minute
+	// We should terminate containers in a pod that has not provided pod status update for more than a minute
 	startedAt := time.Now().Add(-(time.Minute + time.Second))
 	containerStatus.State.Running = &corev1.ContainerStateRunning{StartedAt: metav1.NewTime(startedAt)}
 	pod.ObjectMeta.CreationTimestamp.Time = startedAt