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fix kubectl rolling update empty file cause panic issue

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This commit is contained in:
AdoHe 2016-07-26 02:37:55 -04:00
parent 4d896cd3b2
commit 0949e08336
1 changed files with 3 additions and 0 deletions
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3
pkg/kubectl/cmd/rollingupdate.go
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@ -220,6 +220,9 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
if len(list.Items) > 1 {
return cmdutil.UsageError(cmd, "%s specifies multiple items", filename)
}
if len(list.Items) == 0 {
return cmdutil.UsageError(cmd, "please make sure %s exists and is not empty", filename)
}
obj = list.Items[0]
}
newRc, ok = obj.(*api.ReplicationController)