testing: Update oldest supported K8s version to v1.20

pkg/minikube/constants/constants.go

@@ -39,7 +39,7 @@ const (
 	// NOTE: You may need to update coreDNS & etcd versions in pkg/minikube/bootstrapper/images/images.go
 	NewestKubernetesVersion = "v1.29.0-rc.2"
 	// OldestKubernetesVersion is the oldest Kubernetes version to test against
-	OldestKubernetesVersion = "v1.16.0"
+	OldestKubernetesVersion = "v1.20.0"
 	// NoKubernetesVersion is the version used when users does NOT want to install kubernetes
 	NoKubernetesVersion = "v0.0.0"
 

test/integration/ingress_addon_legacy_test.go

@@ -1,82 +0,0 @@
-//go:build integration
-
-/*
-Copyright 2021 The Kubernetes Authors All rights reserved.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package integration
-
-import (
-	"context"
-	"os/exec"
-	"testing"
-)
-
-// TestIngressAddonLegacy tests ingress and ingress-dns addons with legacy k8s version <1.19
-func TestIngressAddonLegacy(t *testing.T) {
-	if NoneDriver() {
-		t.Skipf("skipping: none driver does not support ingress")
-	}
-
-	profile := UniqueProfileName("ingress-addon-legacy")
-	ctx, cancel := context.WithTimeout(context.Background(), Minutes(10))
-	defer Cleanup(t, profile, cancel)
-
-	t.Run("StartLegacyK8sCluster", func(t *testing.T) {
-		args := append([]string{"start", "-p", profile, "--kubernetes-version=v1.18.20", "--memory=4096", "--wait=true", "--alsologtostderr", "-v=5"}, StartArgs()...)
-		rr, err := Run(t, exec.CommandContext(ctx, Target(), args...))
-		if err != nil {
-			t.Errorf("failed to start minikube with args: %q : %v", rr.Command(), err)
-		}
-	})
-
-	t.Run("serial", func(t *testing.T) {
-		tests := []struct {
-			name      string
-			validator validateFunc
-		}{
-			{"ValidateIngressAddonActivation", validateIngressAddonActivation},
-			{"ValidateIngressDNSAddonActivation", validateIngressDNSAddonActivation},
-			{"ValidateIngressAddons", validateIngressAddon},
-		}
-		for _, tc := range tests {
-			tc := tc
-			if ctx.Err() == context.DeadlineExceeded {
-				t.Fatalf("Unable to run more tests (deadline exceeded)")
-			}
-			t.Run(tc.name, func(t *testing.T) {
-				tc.validator(ctx, t, profile)
-			})
-		}
-	})
-}
-
-// validateIngressAddonActivation tests ingress addon activation
-func validateIngressAddonActivation(ctx context.Context, t *testing.T, profile string) {
-	defer PostMortemLogs(t, profile)
-
-	if _, err := Run(t, exec.CommandContext(ctx, Target(), "-p", profile, "addons", "enable", "ingress", "--alsologtostderr", "-v=5")); err != nil {
-		t.Errorf("failed to enable ingress addon: %v", err)
-	}
-}
-
-// validateIngressDNSAddonActivation tests ingress-dns addon activation
-func validateIngressDNSAddonActivation(ctx context.Context, t *testing.T, profile string) {
-	defer PostMortemLogs(t, profile)
-
-	if _, err := Run(t, exec.CommandContext(ctx, Target(), "-p", profile, "addons", "enable", "ingress-dns", "--alsologtostderr", "-v=5")); err != nil {
-		t.Errorf("failed to enable ingress-dns addon: %v", err)
-	}
-}