Merge pull request #10575 from srikiz/DO-Add-E2E-Tests

[DigitalOcean] add e2e tests

tests/e2e/kubetest2-kops/deployer/common.go

@@ -81,6 +81,7 @@ func (d *deployer) verifyKopsFlags() error {
 	switch d.CloudProvider {
 	case "aws":
 	case "gce":
+	case "digitalocean":
 	default:
 		return errors.New("unsupported --cloud-provider value")
 	}

tests/e2e/kubetest2-kops/deployer/up.go

@@ -24,6 +24,7 @@ import (
 
 	"k8s.io/klog/v2"
 	"k8s.io/kops/tests/e2e/kubetest2-kops/aws"
+	"k8s.io/kops/tests/e2e/kubetest2-kops/do"
 	"k8s.io/kops/tests/e2e/kubetest2-kops/gce"
 	"k8s.io/kops/tests/e2e/kubetest2-kops/util"
 	"sigs.k8s.io/kubetest2/pkg/exec"
@@ -114,6 +115,15 @@ func (d *deployer) createCluster(zones []string, adminAccess string) error {
 		args = append(args, "--master-size", "e2-standard-2")
 	}
 
+	if d.CloudProvider == "digitalocean" {
+		zones, err := do.RandomZones(1)
+		if err != nil {
+			return err
+		}
+		args = append(args, "--zones", strings.Join(zones, ","))
+		args = append(args, "--master-size", "s-8vcpu-16gb")
+	}
+
 	klog.Info(strings.Join(args, " "))
 	cmd := exec.Command(args[0], args[1:]...)
 	cmd.SetEnv(d.env()...)

tests/e2e/kubetest2-kops/do/zones.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2021 The Kubernetes Authors.
+
+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 do
+
+import (
+	"errors"
+	"math/rand"
+)
+
+var allZones = []string{
+	"nyc1",
+	"nyc2",
+	"nyc3",
+	"sfo1",
+	"sfo2",
+	"tor1",
+}
+
+// ErrNoEligibleRegion indicates the requested number of zones is not available in any region
+var ErrNoEligibleRegion = errors.New("No eligible DO region found with enough zones")
+
+// ErrMoreThanOneZone indicates the requested number of zones was more than one
+var ErrMoreThanOneZone = errors.New("More than 1 zone is chosen. DO only works with 1 zone")
+
+// RandomZones returns a random set of availability zones within a region
+func RandomZones(count int) ([]string, error) {
+
+	if count > 1 {
+		return nil, ErrMoreThanOneZone
+	}
+
+	n := rand.Int() % len(allZones)
+	chosenZone := allZones[n]
+
+	chosenZones := make([]string, 0)
+	chosenZones = append(chosenZones, chosenZone)
+
+	return chosenZones, nil
+}