Merge pull request kubernetes#63911 from shyamjvs/change-default-minS…

…tartupPods-value

Automatic merge from submit-queue (batch tested with PRs 63850, 63911). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Change default min-startup-pods value

As ~all our e2e jobs on CI (not just scalability ones) seem to be setting this flag to 8. See - https://github.com/kubernetes/test-infra/blob/master/jobs/config.json

/cc @wojtek-t 

```release-note
NONE
```

test/e2e/framework/test_context.go

@@ -266,7 +266,7 @@ func RegisterClusterFlags() {
 
 	flag.StringVar(&cloudConfig.ClusterTag, "cluster-tag", "", "Tag used to identify resources.  Only required if provider is aws.")
 	flag.StringVar(&cloudConfig.ConfigFile, "cloud-config-file", "", "Cloud config file.  Only required if provider is azure.")
-	flag.IntVar(&TestContext.MinStartupPods, "minStartupPods", 0, "The number of pods which we need to see in 'Running' state with a 'Ready' condition of true, before we try running tests. This is useful in any cluster which needs some base pod-based services running before it can be used.")
+	flag.IntVar(&TestContext.MinStartupPods, "minStartupPods", 8, "The number of pods which we need to see in 'Running' state with a 'Ready' condition of true, before we try running tests. This is useful in any cluster which needs some base pod-based services running before it can be used.")
 	flag.DurationVar(&TestContext.SystemPodsStartupTimeout, "system-pods-startup-timeout", 10*time.Minute, "Timeout for waiting for all system pods to be running before starting tests.")
 	flag.DurationVar(&TestContext.NodeSchedulableTimeout, "node-schedulable-timeout", 30*time.Minute, "Timeout for waiting for all nodes to be schedulable.")
 	flag.StringVar(&TestContext.UpgradeTarget, "upgrade-target", "ci/latest", "Version to upgrade to (e.g. 'release/stable', 'release/latest', 'ci/latest', '0.19.1', '0.19.1-669-gabac8c8') if doing an upgrade test.")