Add mechanism for upgrade tests to be skipped because of versions

test/e2e/cluster_upgrade.go

@@ -17,6 +17,7 @@ limitations under the License.
 package e2e
 
 import (
+	"k8s.io/kubernetes/pkg/util/version"
 	"k8s.io/kubernetes/test/e2e/chaosmonkey"
 	"k8s.io/kubernetes/test/e2e/framework"
 	"k8s.io/kubernetes/test/e2e/upgrades"
@@ -50,18 +51,27 @@ var _ = framework.KubeDescribe("Upgrade [Feature:Upgrade]", func() {
 
 	framework.KubeDescribe("master upgrade", func() {
 		It("should maintain a functioning cluster [Feature:MasterUpgrade]", func() {
+			target, err := framework.RealVersion(framework.TestContext.UpgradeTarget)
+			framework.ExpectNoError(err)
+
+			current, err := f.ClientSet.Discovery().ServerVersion()
+			framework.ExpectNoError(err)
+
+			versions, err := parseVersions(target, current.String())
+			framework.ExpectNoError(err)
+
 			cm := chaosmonkey.New(func() {
-				v, err := framework.RealVersion(framework.TestContext.UpgradeTarget)
-				framework.ExpectNoError(err)
-				framework.ExpectNoError(framework.MasterUpgrade(v))
-				framework.ExpectNoError(framework.CheckMasterVersion(f.ClientSet, v))
+				framework.ExpectNoError(framework.MasterUpgrade(target))
+				framework.ExpectNoError(framework.CheckMasterVersion(f.ClientSet, target))
 			})
 			for _, t := range upgradeTests {
-				cm.RegisterInterface(&chaosMonkeyAdapter{
+				cma := chaosMonkeyAdapter{
 					test:        t,
 					framework:   testFrameworks[t.Name()],
 					upgradeType: upgrades.MasterUpgrade,
-				})
+					versions:    versions,
+				}
+				cm.Register(cma.Test)
 			}
 
 			cm.Do()
@@ -70,18 +80,27 @@ var _ = framework.KubeDescribe("Upgrade [Feature:Upgrade]", func() {
 
 	framework.KubeDescribe("node upgrade", func() {
 		It("should maintain a functioning cluster [Feature:NodeUpgrade]", func() {
+			target, err := framework.RealVersion(framework.TestContext.UpgradeTarget)
+			framework.ExpectNoError(err)
+
+			current, err := f.ClientSet.Discovery().ServerVersion()
+			framework.ExpectNoError(err)
+
+			versions, err := parseVersions(target, current.String())
+			framework.ExpectNoError(err)
+
 			cm := chaosmonkey.New(func() {
-				v, err := framework.RealVersion(framework.TestContext.UpgradeTarget)
-				framework.ExpectNoError(err)
-				framework.ExpectNoError(framework.NodeUpgrade(f, v, framework.TestContext.UpgradeImage))
-				framework.ExpectNoError(framework.CheckNodesVersions(f.ClientSet, v))
+				framework.ExpectNoError(framework.NodeUpgrade(f, target, framework.TestContext.UpgradeImage))
+				framework.ExpectNoError(framework.CheckNodesVersions(f.ClientSet, target))
 			})
 			for _, t := range upgradeTests {
-				cm.RegisterInterface(&chaosMonkeyAdapter{
+				cma := chaosMonkeyAdapter{
 					test:        t,
 					framework:   testFrameworks[t.Name()],
 					upgradeType: upgrades.NodeUpgrade,
-				})
+					versions:    versions,
+				}
+				cm.Register(cma.Test)
 			}
 			cm.Do()
 		})
@@ -89,20 +108,29 @@ var _ = framework.KubeDescribe("Upgrade [Feature:Upgrade]", func() {
 
 	framework.KubeDescribe("cluster upgrade", func() {
 		It("should maintain a functioning cluster [Feature:ClusterUpgrade]", func() {
+			target, err := framework.RealVersion(framework.TestContext.UpgradeTarget)
+			framework.ExpectNoError(err)
+
+			current, err := f.ClientSet.Discovery().ServerVersion()
+			framework.ExpectNoError(err)
+
+			versions, err := parseVersions(target, current.String())
+			framework.ExpectNoError(err)
+
 			cm := chaosmonkey.New(func() {
-				v, err := framework.RealVersion(framework.TestContext.UpgradeTarget)
-				framework.ExpectNoError(err)
-				framework.ExpectNoError(framework.MasterUpgrade(v))
-				framework.ExpectNoError(framework.CheckMasterVersion(f.ClientSet, v))
-				framework.ExpectNoError(framework.NodeUpgrade(f, v, framework.TestContext.UpgradeImage))
-				framework.ExpectNoError(framework.CheckNodesVersions(f.ClientSet, v))
+				framework.ExpectNoError(framework.MasterUpgrade(target))
+				framework.ExpectNoError(framework.CheckMasterVersion(f.ClientSet, target))
+				framework.ExpectNoError(framework.NodeUpgrade(f, target, framework.TestContext.UpgradeImage))
+				framework.ExpectNoError(framework.CheckNodesVersions(f.ClientSet, target))
 			})
 			for _, t := range upgradeTests {
-				cm.RegisterInterface(&chaosMonkeyAdapter{
+				cma := chaosMonkeyAdapter{
 					test:        t,
 					framework:   testFrameworks[t.Name()],
 					upgradeType: upgrades.ClusterUpgrade,
-				})
+					versions:    versions,
+				}
+				cm.Register(cma.Test)
 			}
 			cm.Do()
 		})
@@ -121,21 +149,30 @@ var _ = framework.KubeDescribe("Downgrade [Feature:Downgrade]", func() {
 
 	framework.KubeDescribe("cluster downgrade", func() {
 		It("should maintain a functioning cluster [Feature:ClusterDowngrade]", func() {
+			target, err := framework.RealVersion(framework.TestContext.UpgradeTarget)
+			framework.ExpectNoError(err)
+
+			current, err := f.ClientSet.Discovery().ServerVersion()
+			framework.ExpectNoError(err)
+
+			versions, err := parseVersions(target, current.String())
+			framework.ExpectNoError(err)
+
 			cm := chaosmonkey.New(func() {
 				// Yes this really is a downgrade. And nodes must downgrade first.
-				v, err := framework.RealVersion(framework.TestContext.UpgradeTarget)
-				framework.ExpectNoError(err)
-				framework.ExpectNoError(framework.NodeUpgrade(f, v, framework.TestContext.UpgradeImage))
-				framework.ExpectNoError(framework.CheckNodesVersions(f.ClientSet, v))
-				framework.ExpectNoError(framework.MasterUpgrade(v))
-				framework.ExpectNoError(framework.CheckMasterVersion(f.ClientSet, v))
+				framework.ExpectNoError(framework.NodeUpgrade(f, target, framework.TestContext.UpgradeImage))
+				framework.ExpectNoError(framework.CheckNodesVersions(f.ClientSet, target))
+				framework.ExpectNoError(framework.MasterUpgrade(target))
+				framework.ExpectNoError(framework.CheckMasterVersion(f.ClientSet, target))
 			})
 			for _, t := range upgradeTests {
-				cm.RegisterInterface(&chaosMonkeyAdapter{
+				cma := chaosMonkeyAdapter{
 					test:        t,
 					framework:   testFrameworks[t.Name()],
 					upgradeType: upgrades.ClusterUpgrade,
-				})
+					versions:    versions,
+				}
+				cm.Register(cma.Test)
 			}
 			cm.Do()
 		})
@@ -143,6 +180,8 @@ var _ = framework.KubeDescribe("Downgrade [Feature:Downgrade]", func() {
 })
 
 var _ = framework.KubeDescribe("etcd Upgrade [Feature:EtcdUpgrade]", func() {
+	f := framework.NewDefaultFramework("etc-upgrade")
+
 	// Create the frameworks here because we can only create them
 	// in a "Describe".
 	testFrameworks := map[string]*framework.Framework{}
@@ -152,16 +191,24 @@ var _ = framework.KubeDescribe("etcd Upgrade [Feature:EtcdUpgrade]", func() {
 
 	framework.KubeDescribe("etcd upgrade", func() {
 		It("should maintain a functioning cluster", func() {
+			current, err := f.ClientSet.Discovery().ServerVersion()
+			framework.ExpectNoError(err)
+
+			versions, err := parseVersions(current.String())
+			framework.ExpectNoError(err)
+
 			cm := chaosmonkey.New(func() {
 				framework.ExpectNoError(framework.EtcdUpgrade(framework.TestContext.EtcdUpgradeStorage, framework.TestContext.EtcdUpgradeVersion))
 				// TODO(mml): verify the etcd version
 			})
 			for _, t := range upgradeTests {
-				cm.RegisterInterface(&chaosMonkeyAdapter{
+				cma := chaosMonkeyAdapter{
 					test:        t,
 					framework:   testFrameworks[t.Name()],
 					upgradeType: upgrades.EtcdUpgrade,
-				})
+					versions:    versions,
+				}
+				cm.Register(cma.Test)
 			}
 
 			cm.Do()
@@ -173,16 +220,30 @@ type chaosMonkeyAdapter struct {
 	test        upgrades.Test
 	framework   *framework.Framework
 	upgradeType upgrades.UpgradeType
+	versions    []version.Version
 }
 
-func (cma *chaosMonkeyAdapter) Setup() {
+func (cma *chaosMonkeyAdapter) Test(sem *chaosmonkey.Semaphore) {
+	if skippable, ok := cma.test.(upgrades.VersionSkippable); ok && skippable.SkipVersions(cma.versions...) {
+		By("skipping test " + cma.test.Name())
+		sem.Ready()
+		return
+	}
+
 	cma.test.Setup(cma.framework)
+	defer cma.test.Teardown(cma.framework)
+	sem.Ready()
+	cma.test.Test(cma.framework, sem.StopCh, cma.upgradeType)
 }
 
-func (cma *chaosMonkeyAdapter) Test(stopCh <-chan struct{}) {
-	cma.test.Test(cma.framework, stopCh, cma.upgradeType)
-}
-
-func (cma *chaosMonkeyAdapter) Teardown() {
-	cma.test.Teardown(cma.framework)
+func parseVersions(vs ...string) ([]version.Version, error) {
+	var ret []version.Version
+	for _, v := range vs {
+		semver, err := version.ParseSemantic(v)
+		if err != nil {
+			return nil, err
+		}
+		ret = append(ret, *semver)
+	}
+	return ret, nil
 }

test/e2e/upgrades/BUILD

@@ -33,6 +33,7 @@ go_library(
         "//pkg/controller:go_default_library",
         "//pkg/controller/deployment/util:go_default_library",
         "//pkg/kubelet/sysctl:go_default_library",
+        "//pkg/util/version:go_default_library",
         "//test/e2e/common:go_default_library",
         "//test/e2e/framework:go_default_library",
         "//vendor:github.com/onsi/ginkgo",

test/e2e/upgrades/upgrade.go

@@ -18,7 +18,10 @@ limitations under the License.
 // features before, during, and after different types of upgrades.
 package upgrades
 
-import "k8s.io/kubernetes/test/e2e/framework"
+import (
+	"k8s.io/kubernetes/pkg/util/version"
+	"k8s.io/kubernetes/test/e2e/framework"
+)
 
 // UpgradeType represents different types of upgrades.
 type UpgradeType int
@@ -57,3 +60,11 @@ type Test interface {
 	// aren't already cleaned up by the framework.
 	Teardown(f *framework.Framework)
 }
+
+// VersionSkippable is an interface that an upgrade test can implement
+// to be able to indicate that it should be skipped.
+type VersionSkippable interface {
+	// SkipVersions should return true if test should be skipped
+	// for any of provided versions.
+	SkipVersions(versions ...version.Version) bool
+}