aboutsummaryrefslogtreecommitdiff
path: root/cmd/podman/system_prune.go
blob: c918fbe3b9f71217d1b2a56c12471f6195fd9a00 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
package main

import (
	"bufio"
	"fmt"
	"os"
	"strings"

	"github.com/containers/libpod/cmd/podman/cliconfig"
	"github.com/containers/libpod/cmd/podman/shared"
	"github.com/containers/libpod/libpod/adapter"
	"github.com/pkg/errors"
	"github.com/sirupsen/logrus"
	"github.com/spf13/cobra"
)

var (
	pruneSystemCommand     cliconfig.SystemPruneValues
	pruneSystemDescription = `
	podman system prune

        Remove unused data
`
	_pruneSystemCommand = &cobra.Command{
		Use:   "prune",
		Short: "Remove unused data",
		Long:  pruneSystemDescription,
		RunE: func(cmd *cobra.Command, args []string) error {
			pruneSystemCommand.InputArgs = args
			pruneSystemCommand.GlobalFlags = MainGlobalOpts
			return pruneSystemCmd(&pruneSystemCommand)
		},
	}
)

func init() {

	pruneSystemCommand.Command = _pruneSystemCommand
	flags := pruneSystemCommand.Flags()
	flags.BoolVarP(&pruneSystemCommand.All, "all", "a", false, "Remove all unused data")
	flags.BoolVarP(&pruneSystemCommand.Force, "force", "f", false, "Do not prompt for confirmation")
	flags.BoolVar(&pruneSystemCommand.Volume, "volumes", false, "Prune volumes")

}

func pruneSystemCmd(c *cliconfig.SystemPruneValues) error {

	// Prompt for confirmation if --force is not set
	if !c.Force {
		reader := bufio.NewReader(os.Stdin)
		volumeString := ""
		if c.Volume {
			volumeString = `
        - all volumes not used by at least one container`
		}
		fmt.Printf(`
WARNING! This will remove:
        - all stopped containers%s
        - all dangling images
        - all build cache
Are you sure you want to continue? [y/N] `, volumeString)
		ans, err := reader.ReadString('\n')
		if err != nil {
			return errors.Wrapf(err, "error reading input")
		}
		if strings.ToLower(ans)[0] != 'y' {
			return nil
		}
	}

	runtime, err := adapter.GetRuntime(&c.PodmanCommand)
	if err != nil {
		return errors.Wrapf(err, "could not get runtime")
	}
	defer runtime.Shutdown(false)

	ctx := getContext()
	fmt.Println("Deleted Containers")
	lasterr := pruneContainers(runtime, ctx, shared.Parallelize("rm"), false)
	if c.Bool("volumes") {
		fmt.Println("Deleted Volumes")
		err := volumePrune(runtime, getContext())
		if err != nil {
			if lasterr != nil {
				logrus.Errorf("%q", lasterr)
			}
			lasterr = err
		}
	}

	// Call prune; if any cids are returned, print them and then
	// return err in case an error also came up
	pruneCids, err := runtime.PruneImages(c.All)
	if len(pruneCids) > 0 {
		fmt.Println("Deleted Images")
		for _, cid := range pruneCids {
			fmt.Println(cid)
		}
	}
	if err != nil {
		if lasterr != nil {
			logrus.Errorf("%q", lasterr)
		}
		lasterr = err
	}
	return lasterr
}