88 lines
3.0 KiB
Go
88 lines
3.0 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cmd
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import (
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"fmt"
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"io"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
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"github.com/spf13/cobra"
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)
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func (f *Factory) NewCmdGet(out io.Writer) *cobra.Command {
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cmd := &cobra.Command{
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Use: "get [(-o|--output=)json|yaml|...] <resource> [<id>]",
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Short: "Display one or many resources",
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Long: `Display one or many resources.
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Possible resources include pods (po), replication controllers (rc), services
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(se) or minions (mi).
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If you specify a Go template, you can use any fields defined for the API version
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you are connecting to the server with.
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Examples:
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$ kubectl get pods
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<list all pods in ps output format>
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$ kubectl get replicationController 1234-56-7890-234234-456456
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<list single replication controller in ps output format>
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$ kubectl get -f json pod 1234-56-7890-234234-456456
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<list single pod in json output format>`,
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Run: func(cmd *cobra.Command, args []string) {
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mapping, namespace, name := ResourceOrTypeFromArgs(cmd, args, f.Mapper)
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selector := getFlagString(cmd, "selector")
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labels, err := labels.ParseSelector(selector)
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checkErr(err)
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client, err := f.Client(cmd, mapping)
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checkErr(err)
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outputFormat := getFlagString(cmd, "output")
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templateFile := getFlagString(cmd, "template")
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defaultPrinter, err := f.Printer(cmd, mapping, getFlagBool(cmd, "no-headers"))
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checkErr(err)
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printer, versioned, err := kubectl.GetPrinter(outputFormat, templateFile, defaultPrinter)
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checkErr(err)
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obj, err := kubectl.NewRESTHelper(client, mapping).Get(namespace, name, labels)
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checkErr(err)
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if versioned {
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// TODO Add an --output-version lock which can ensure that regardless of the
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// server version, the client output stays the same.
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obj, err = mapping.ObjectConvertor.ConvertToVersion(obj, mapping.APIVersion)
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checkErr(err)
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}
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if err := printer.PrintObj(obj, out); err != nil {
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checkErr(fmt.Errorf("Unable to output the provided object: %v", err))
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}
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},
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}
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cmd.Flags().StringP("output", "o", "", "Output format: json|yaml|template|templatefile")
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cmd.Flags().Bool("no-headers", false, "When using the default output, don't print headers")
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cmd.Flags().StringP("template", "t", "", "Template string or path to template file to use when --output=template or --output=templatefile")
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cmd.Flags().StringP("selector", "l", "", "Selector (label query) to filter on")
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return cmd
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}
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