github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-09-06 19:52:42 +00:00
Code Issues Projects Releases Wiki Activity

Retry resizing replication controllers in kubectl

Browse Source
This commit is contained in:
Prashanth Balasubramanian
2015-02-28 18:40:57 -08:00
parent 71e545bf81
commit 1970c2d201
7 changed files with 113 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
pkg/kubectl/cmd/resize.go
View File

@@ -19,9 +19,12 @@ package cmd
import (
"fmt"
"io"
"time"
"github.com/GoogleCloudPlatform/kubernetes/pkg/controller"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/cmd/util"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util/wait"
"github.com/spf13/cobra"
)
@@ -37,6 +40,9 @@ $ kubectl resize --replicas=3 replicationcontrollers foo
// If the replication controller named foo's current size is 2, resize foo to 3.
$ kubectl resize --current-replicas=2 --replicas=3 replicationcontrollers foo`
retryFrequency = controller.DefaultSyncPeriod / 100
retryTimeout = 10 * time.Second
)
func (f *Factory) NewCmdResize(out io.Writer) *cobra.Command {
@@ -63,9 +69,15 @@ func (f *Factory) NewCmdResize(out io.Writer) *cobra.Command {
resourceVersion := util.GetFlagString(cmd, "resource-version")
currentSize := util.GetFlagInt(cmd, "current-replicas")
s, err := resizer.Resize(namespace, name, &kubectl.ResizePrecondition{currentSize, resourceVersion}, uint(count))
checkErr(err)
fmt.Fprintf(out, "%s\n", s)
precondition := &kubectl.ResizePrecondition{currentSize, resourceVersion}
cond := kubectl.ResizeCondition(resizer, precondition, namespace, name, uint(count))
msg := "resized"
if err = wait.Poll(retryFrequency, retryTimeout, cond); err != nil {
msg = fmt.Sprintf("Failed to resize controller in spite of retrying for %s", retryTimeout)
checkErr(err)
}
fmt.Fprintf(out, "%s\n", msg)
},
}
cmd.Flags().String("resource-version", "", "Precondition for resource version. Requires that the current resource version match this value in order to resize.")