github.com/azlyth/helm@v2.8.2+incompatible/cmd/helm/delete.go (about)

     1  /*
     2  Copyright 2016 The Kubernetes Authors All rights reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"errors"
    21  	"fmt"
    22  	"io"
    23  
    24  	"github.com/spf13/cobra"
    25  
    26  	"k8s.io/helm/pkg/helm"
    27  )
    28  
    29  const deleteDesc = `
    30  This command takes a release name, and then deletes the release from Kubernetes.
    31  It removes all of the resources associated with the last release of the chart.
    32  
    33  Use the '--dry-run' flag to see which releases will be deleted without actually
    34  deleting them.
    35  `
    36  
    37  type deleteCmd struct {
    38  	name         string
    39  	dryRun       bool
    40  	disableHooks bool
    41  	purge        bool
    42  	timeout      int64
    43  
    44  	out    io.Writer
    45  	client helm.Interface
    46  }
    47  
    48  func newDeleteCmd(c helm.Interface, out io.Writer) *cobra.Command {
    49  	del := &deleteCmd{
    50  		out:    out,
    51  		client: c,
    52  	}
    53  
    54  	cmd := &cobra.Command{
    55  		Use:        "delete [flags] RELEASE_NAME [...]",
    56  		Aliases:    []string{"del"},
    57  		SuggestFor: []string{"remove", "rm"},
    58  		Short:      "given a release name, delete the release from Kubernetes",
    59  		Long:       deleteDesc,
    60  		PreRunE:    func(_ *cobra.Command, _ []string) error { return setupConnection() },
    61  		RunE: func(cmd *cobra.Command, args []string) error {
    62  			if len(args) == 0 {
    63  				return errors.New("command 'delete' requires a release name")
    64  			}
    65  			del.client = ensureHelmClient(del.client)
    66  
    67  			for i := 0; i < len(args); i++ {
    68  				del.name = args[i]
    69  				if err := del.run(); err != nil {
    70  					return err
    71  				}
    72  
    73  				fmt.Fprintf(out, "release \"%s\" deleted\n", del.name)
    74  			}
    75  			return nil
    76  		},
    77  	}
    78  
    79  	f := cmd.Flags()
    80  	f.BoolVar(&del.dryRun, "dry-run", false, "simulate a delete")
    81  	f.BoolVar(&del.disableHooks, "no-hooks", false, "prevent hooks from running during deletion")
    82  	f.BoolVar(&del.purge, "purge", false, "remove the release from the store and make its name free for later use")
    83  	f.Int64Var(&del.timeout, "timeout", 300, "time in seconds to wait for any individual Kubernetes operation (like Jobs for hooks)")
    84  
    85  	return cmd
    86  }
    87  
    88  func (d *deleteCmd) run() error {
    89  	opts := []helm.DeleteOption{
    90  		helm.DeleteDryRun(d.dryRun),
    91  		helm.DeleteDisableHooks(d.disableHooks),
    92  		helm.DeletePurge(d.purge),
    93  		helm.DeleteTimeout(d.timeout),
    94  	}
    95  	res, err := d.client.DeleteRelease(d.name, opts...)
    96  	if res != nil && res.Info != "" {
    97  		fmt.Fprintln(d.out, res.Info)
    98  	}
    99  
   100  	return prettyError(err)
   101  }