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Merge pull request #15908 from jlowdermilk/rolling-update-doc

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k8s-merge-robot 2015-10-23 00:52:37 -07:00
commit a10ed3e2b1
3 changed files with 10 additions and 4 deletions
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2
docs/man/man1/kubectl-rolling-update.1
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@ -36,7 +36,7 @@ existing replication controller and overwrite at least one (common) label in its
.PP
\fB\-\-image\fP=""
Image to use for upgrading the replication controller. Can not be used with \-\-filename/\-f
Image to use for upgrading the replication controller. Must be distinct from the existing image (either new image or new image tag). Can not be used with \-\-filename/\-f
.PP
\fB\-\-no\-headers\fP=false

4
docs/user-guide/kubectl/kubectl_rolling-update.md
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@ -72,7 +72,7 @@ $ kubectl rolling-update frontend --image=image:v2
--deployment-label-key="deployment": The key to use to differentiate between two different controllers, default 'deployment'. Only relevant when --image is specified, ignored otherwise
--dry-run[=false]: If true, print out the changes that would be made, but don't actually make them.
-f, --filename=[]: Filename or URL to file to use to create the new replication controller.
--image="": Image to use for upgrading the replication controller. Can not be used with --filename/-f
--image="": Image to use for upgrading the replication controller. Must be distinct from the existing image (either new image or new image tag). Can not be used with --filename/-f
--no-headers[=false]: When using the default output, don't print headers.
-o, --output="": Output format. One of: json|yaml|wide|name|go-template=...|go-template-file=...|jsonpath=...|jsonpath-file=... See golang template [http://golang.org/pkg/text/template/#pkg-overview] and jsonpath template [http://releases.k8s.io/HEAD/docs/user-guide/jsonpath.md].
--output-version="": Output the formatted object with the given version (default api-version).
@ -119,7 +119,7 @@ $ kubectl rolling-update frontend --image=image:v2
* [kubectl](kubectl.md) - kubectl controls the Kubernetes cluster manager
###### Auto generated by spf13/cobra on 9-Oct-2015
###### Auto generated by spf13/cobra on 19-Oct-2015
<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/docs/user-guide/kubectl/kubectl_rolling-update.md?pixel)]()

8
pkg/kubectl/cmd/rollingupdate.go
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@ -90,7 +90,7 @@ func NewCmdRollingUpdate(f *cmdutil.Factory, out io.Writer) *cobra.Command {
usage := "Filename or URL to file to use to create the new replication controller."
kubectl.AddJsonFilenameFlag(cmd, &options.Filenames, usage)
cmd.MarkFlagRequired("filename")
cmd.Flags().String("image", "", "Image to use for upgrading the replication controller. Can not be used with --filename/-f")
cmd.Flags().String("image", "", "Image to use for upgrading the replication controller. Must be distinct from the existing image (either new image or new image tag). Can not be used with --filename/-f")
cmd.MarkFlagRequired("image")
cmd.Flags().String("deployment-label-key", "deployment", "The key to use to differentiate between two different controllers, default 'deployment'. Only relevant when --image is specified, ignored otherwise")
cmd.Flags().Bool("dry-run", false, "If true, print out the changes that would be made, but don't actually make them.")
@ -235,8 +235,14 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
return err
}
if newRc != nil {
if inProgressImage := newRc.Spec.Template.Spec.Containers[0].Image; inProgressImage != image {
return cmdutil.UsageError(cmd, "Found existing in-progress update to image (%s).\nEither continue in-progress update with --image=%s or rollback with --rollback", inProgressImage, inProgressImage)
}
fmt.Fprintf(out, "Found existing update in progress (%s), resuming.\n", newRc.Name)
} else {
if oldRc.Spec.Template.Spec.Containers[0].Image == image {
return cmdutil.UsageError(cmd, "Specified --image must be distinct from existing container image")
}
newRc, err = kubectl.CreateNewControllerFromCurrentController(client, cmdNamespace, oldName, newName, image, deploymentKey)
if err != nil {
return err