Merge pull request #57358 from ericchiang/kubeadm-upgrade/unit-test-fix

Automatic merge from submit-queue (batch tested with PRs 57139, 57358). 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>.

kubeadm upgrade: fix unit test flake

The CA generated for each test case is global and the cases modify
the expiry. This can flake depending on what order the tests run.

Generate a new CA for each test case.

```release-note
NONE
```

Fixes https://github.com/kubernetes/kubernetes/issues/57357

/cc @kubernetes/sig-cluster-lifecycle-bugs 
/cc @xiangpengzhao
/cc @luxas
This commit is contained in:
Kubernetes Submit Queue 2017-12-22 06:04:29 -08:00 committed by GitHub
commit 7e22151db7
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@ -136,10 +136,6 @@ func TestShouldBackupAPIServerCertAndKey(t *testing.T) {
Networking: kubeadmapi.Networking{ServiceSubnet: "10.96.0.0/12", DNSDomain: "cluster.local"},
NodeName: "test-node",
}
caCert, caKey, err := certsphase.NewCACertAndKey()
if err != nil {
t.Fatalf("failed creation of ca cert and key: %v", err)
}
for desc, test := range map[string]struct {
adjustedExpiry time.Duration
@ -160,6 +156,10 @@ func TestShouldBackupAPIServerCertAndKey(t *testing.T) {
expected: true,
},
} {
caCert, caKey, err := certsphase.NewCACertAndKey()
if err != nil {
t.Fatalf("failed creation of ca cert and key: %v", err)
}
caCert.NotBefore = caCert.NotBefore.Add(-test.adjustedExpiry).UTC()
apiCert, apiKey, err := certsphase.NewAPIServerCertAndKey(cfg, caCert, caKey)
if err != nil {