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the changes introduced in this commit plumbs in the generic scaler into kubectl.

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note that we don't change the behaviour of kubectl.
For example it won't scale new resources. That's the end goal.
The first step is to retrofit existing code to use the generic scaler.
This commit is contained in:
p0lyn0mial
2018-01-04 14:52:25 +01:00
parent 1a817b1507
commit dd9de90b0a
22 changed files with 177 additions and 100 deletions
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54
test/integration/framework/util.go
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@@ -19,22 +19,13 @@ limitations under the License.
package framework
import (
"io/ioutil"
"net/http/httptest"
"strings"
"testing"
"time"
"github.com/golang/glog"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/kubernetes/pkg/api/testapi"
api "k8s.io/kubernetes/pkg/apis/core"
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
"k8s.io/kubernetes/pkg/kubectl"
)
const (
@@ -80,48 +71,3 @@ func CreateTestingNamespace(baseName string, apiserver *httptest.Server, t *test
func DeleteTestingNamespace(ns *v1.Namespace, apiserver *httptest.Server, t *testing.T) {
// TODO: Remove all resources from a given namespace once we implement CreateTestingNamespace.
}
// RCFromManifest reads a .json file and returns the rc in it.
func RCFromManifest(fileName string) *v1.ReplicationController {
data, err := ioutil.ReadFile(fileName)
if err != nil {
glog.Fatalf("Unexpected error reading rc manifest %v", err)
}
var controller v1.ReplicationController
if err := runtime.DecodeInto(testapi.Default.Codec(), data, &controller); err != nil {
glog.Fatalf("Unexpected error reading rc manifest %v", err)
}
return &controller
}
// StopRC stops the rc via kubectl's stop library
func StopRC(rc *v1.ReplicationController, clientset internalclientset.Interface) error {
reaper, err := kubectl.ReaperFor(api.Kind("ReplicationController"), clientset)
if err != nil || reaper == nil {
return err
}
err = reaper.Stop(rc.Namespace, rc.Name, 0, nil)
if err != nil {
return err
}
return nil
}
// ScaleRC scales the given rc to the given replicas.
func ScaleRC(name, ns string, replicas int32, clientset internalclientset.Interface) (*api.ReplicationController, error) {
scaler, err := kubectl.ScalerFor(api.Kind("ReplicationController"), clientset)
if err != nil {
return nil, err
}
retry := &kubectl.RetryParams{Interval: 50 * time.Millisecond, Timeout: DefaultTimeout}
waitForReplicas := &kubectl.RetryParams{Interval: 50 * time.Millisecond, Timeout: DefaultTimeout}
err = scaler.Scale(ns, name, uint(replicas), nil, retry, waitForReplicas)
if err != nil {
return nil, err
}
scaled, err := clientset.Core().ReplicationControllers(ns).Get(name, metav1.GetOptions{})
if err != nil {
return nil, err
}
return scaled, nil
}