kubernetes/pkg/kubectl/cmd/update.go
Clayton Coleman e46adc4cd0 kubectl should error when namespace doesn't match file for update
A user who runs `kubectl update -f foo.json` where foo.json is a
resource in a namespace that does not match $(kubectl namespace)
may not intend to update the resource in that other namespace.

For now, return an error when the user does not explicitly set
the namespace via the CLI:

    # foo.json in 'one', current is 'two'
    $ kubectl update -f foo.json # FAILS

    $ kubectl update --namespace=one -f foo.json # SUCCEEDS
2014-11-04 10:44:56 -05:00

61 lines
1.7 KiB
Go

/*
Copyright 2014 Google Inc. All rights reserved.
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 cmd
import (
"fmt"
"io"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl"
"github.com/spf13/cobra"
)
func (f *Factory) NewCmdUpdate(out io.Writer) *cobra.Command {
cmd := &cobra.Command{
Use: "update -f filename",
Short: "Update a resource by filename or stdin",
Long: `Update a resource by filename or stdin.
JSON and YAML formats are accepted.
Examples:
$ kubectl update -f pod.json
<update a pod using the data in pod.json>
$ cat pod.json | kubectl update -f -
<update a pod based on the json passed into stdin>`,
Run: func(cmd *cobra.Command, args []string) {
filename := getFlagString(cmd, "filename")
if len(filename) == 0 {
usageError(cmd, "Must specify filename to update")
}
mapping, namespace, name, data := ResourceFromFile(filename, f.Typer, f.Mapper)
client, err := f.Client(cmd, mapping)
checkErr(err)
err = CompareNamespaceFromFile(cmd, namespace)
checkErr(err)
err = kubectl.NewRESTHelper(client, mapping).Update(namespace, name, true, data)
checkErr(err)
fmt.Fprintf(out, "%s\n", name)
},
}
cmd.Flags().StringP("filename", "f", "", "Filename or URL to file to use to update the resource")
return cmd
}