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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
package main
import (
js "encoding/json"
"fmt"
"os"
of "github.com/containers/buildah/pkg/formats"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/pkg/rootless"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
var (
mountCommand cliconfig.MountValues
mountDescription = `podman mount
Lists all mounted containers mount points if no container is specified
podman mount CONTAINER-NAME-OR-ID
Mounts the specified container and outputs the mountpoint
`
_mountCommand = &cobra.Command{
Use: "mount [flags] [CONTAINER]",
Short: "Mount a working container's root filesystem",
Long: mountDescription,
RunE: func(cmd *cobra.Command, args []string) error {
mountCommand.InputArgs = args
mountCommand.GlobalFlags = MainGlobalOpts
return mountCmd(&mountCommand)
},
Args: func(cmd *cobra.Command, args []string) error {
return checkAllAndLatest(cmd, args, true)
},
}
)
func init() {
mountCommand.Command = _mountCommand
mountCommand.SetHelpTemplate(HelpTemplate())
mountCommand.SetUsageTemplate(UsageTemplate())
flags := mountCommand.Flags()
flags.BoolVarP(&mountCommand.All, "all", "a", false, "Mount all containers")
flags.StringVar(&mountCommand.Format, "format", "", "Change the output format to Go template")
flags.BoolVarP(&mountCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
flags.BoolVar(&mountCommand.NoTrunc, "notruncate", false, "Do not truncate output")
markFlagHiddenForRemoteClient("latest", flags)
}
// jsonMountPoint stores info about each container
type jsonMountPoint struct {
ID string `json:"id"`
Names []string `json:"names"`
MountPoint string `json:"mountpoint"`
}
func mountCmd(c *cliconfig.MountValues) error {
runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
if os.Geteuid() != 0 {
rtc, err := runtime.GetConfig()
if err != nil {
return err
}
if driver := rtc.StorageConfig.GraphDriverName; driver != "vfs" {
// Do not allow to mount a graphdriver that is not vfs if we are creating the userns as part
// of the mount command.
return fmt.Errorf("cannot mount using driver %s in rootless mode", driver)
}
became, ret, err := rootless.BecomeRootInUserNS()
if err != nil {
return err
}
if became {
os.Exit(ret)
}
}
if c.All && c.Latest {
return errors.Errorf("--all and --latest cannot be used together")
}
mountContainers, err := getAllOrLatestContainers(&c.PodmanCommand, runtime, -1, "all")
if err != nil {
if len(mountContainers) == 0 {
return err
}
fmt.Println(err.Error())
}
formats := map[string]bool{
"": true,
of.JSONString: true,
}
json := c.Format == of.JSONString
if !formats[c.Format] {
return errors.Errorf("%q is not a supported format", c.Format)
}
var lastError error
if len(mountContainers) > 0 {
for _, ctr := range mountContainers {
if json {
if lastError != nil {
logrus.Error(lastError)
}
lastError = errors.Wrapf(err, "json option cannot be used with a container id")
continue
}
mountPoint, err := ctr.Mount()
if err != nil {
if lastError != nil {
logrus.Error(lastError)
}
lastError = errors.Wrapf(err, "error mounting container %q", ctr.ID())
continue
}
fmt.Printf("%s\n", mountPoint)
}
return lastError
} else {
jsonMountPoints := []jsonMountPoint{}
containers, err2 := runtime.GetContainers()
if err2 != nil {
return errors.Wrapf(err2, "error reading list of all containers")
}
for _, container := range containers {
mounted, mountPoint, err := container.Mounted()
if err != nil {
return errors.Wrapf(err, "error getting mountpoint for %q", container.ID())
}
if !mounted {
continue
}
if json {
jsonMountPoints = append(jsonMountPoints, jsonMountPoint{ID: container.ID(), Names: []string{container.Name()}, MountPoint: mountPoint})
continue
}
if c.NoTrunc {
fmt.Printf("%-64s %s\n", container.ID(), mountPoint)
} else {
fmt.Printf("%-12.12s %s\n", container.ID(), mountPoint)
}
}
if json {
data, err := js.MarshalIndent(jsonMountPoints, "", " ")
if err != nil {
return err
}
fmt.Printf("%s\n", data)
}
}
return nil
}
|
