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
169
170
171
|
package main
import (
"context"
"strings"
"github.com/pkg/errors"
"github.com/projectatomic/libpod/cmd/podman/batchcontainer"
"github.com/projectatomic/libpod/cmd/podman/formats"
"github.com/projectatomic/libpod/cmd/podman/libpodruntime"
"github.com/projectatomic/libpod/libpod"
"github.com/projectatomic/libpod/pkg/util"
"github.com/urfave/cli"
)
const (
inspectTypeContainer = "container"
inspectTypeImage = "image"
inspectAll = "all"
)
var (
inspectFlags = []cli.Flag{
cli.StringFlag{
Name: "type, t",
Value: inspectAll,
Usage: "Return JSON for specified type, (e.g image, container or task)",
},
cli.StringFlag{
Name: "format, f",
Usage: "Change the output format to a Go template",
},
cli.BoolFlag{
Name: "size",
Usage: "Display total file size if the type is container",
},
LatestFlag,
}
inspectDescription = "This displays the low-level information on containers and images identified by name or ID. By default, this will render all results in a JSON array. If the container and image have the same name, this will return container JSON for unspecified type."
inspectCommand = cli.Command{
Name: "inspect",
Usage: "Displays the configuration of a container or image",
Description: inspectDescription,
Flags: inspectFlags,
Action: inspectCmd,
ArgsUsage: "CONTAINER-OR-IMAGE [CONTAINER-OR-IMAGE]...",
}
)
func inspectCmd(c *cli.Context) error {
args := c.Args()
inspectType := c.String("type")
latestContainer := c.Bool("latest")
if len(args) == 0 && !latestContainer {
return errors.Errorf("container or image name must be specified: podman inspect [options [...]] name")
}
if len(args) > 0 && latestContainer {
return errors.Errorf("you cannot provide additional arguments with --latest")
}
if err := validateFlags(c, inspectFlags); err != nil {
return err
}
runtime, err := libpodruntime.GetRuntime(c)
if err != nil {
return errors.Wrapf(err, "error creating libpod runtime")
}
defer runtime.Shutdown(false)
if !util.StringInSlice(inspectType, []string{inspectTypeContainer, inspectTypeImage, inspectAll}) {
return errors.Errorf("the only recognized types are %q, %q, and %q", inspectTypeContainer, inspectTypeImage, inspectAll)
}
outputFormat := c.String("format")
if strings.Contains(outputFormat, "{{.Id}}") {
outputFormat = strings.Replace(outputFormat, "{{.Id}}", formats.IDString, -1)
}
if latestContainer {
lc, err := runtime.GetLatestContainer()
if err != nil {
return err
}
args = append(args, lc.ID())
inspectType = inspectTypeContainer
}
inspectedObjects, iterateErr := iterateInput(getContext(), c, args, runtime, inspectType)
var out formats.Writer
if outputFormat != "" && outputFormat != formats.JSONString {
//template
out = formats.StdoutTemplateArray{Output: inspectedObjects, Template: outputFormat}
} else {
// default is json output
out = formats.JSONStructArray{Output: inspectedObjects}
}
formats.Writer(out).Out()
return iterateErr
}
// func iterateInput iterates the images|containers the user has requested and returns the inspect data and error
func iterateInput(ctx context.Context, c *cli.Context, args []string, runtime *libpod.Runtime, inspectType string) ([]interface{}, error) {
var (
data interface{}
inspectedItems []interface{}
inspectError error
)
for _, input := range args {
switch inspectType {
case inspectTypeContainer:
ctr, err := runtime.LookupContainer(input)
if err != nil {
inspectError = errors.Wrapf(err, "error looking up container %q", input)
break
}
libpodInspectData, err := ctr.Inspect(c.Bool("size"))
if err != nil {
inspectError = errors.Wrapf(err, "error getting libpod container inspect data %q", ctr.ID)
break
}
data, err = batchcontainer.GetCtrInspectInfo(ctr, libpodInspectData)
if err != nil {
inspectError = errors.Wrapf(err, "error parsing container data %q", ctr.ID())
break
}
case inspectTypeImage:
image, err := runtime.ImageRuntime().NewFromLocal(input)
if err != nil {
inspectError = errors.Wrapf(err, "error getting image %q", input)
break
}
data, err = image.Inspect(ctx)
if err != nil {
inspectError = errors.Wrapf(err, "error parsing image data %q", image.ID())
break
}
case inspectAll:
ctr, err := runtime.LookupContainer(input)
if err != nil {
image, err := runtime.ImageRuntime().NewFromLocal(input)
if err != nil {
inspectError = errors.Wrapf(err, "error getting image %q", input)
break
}
data, err = image.Inspect(ctx)
if err != nil {
inspectError = errors.Wrapf(err, "error parsing image data %q", image.ID())
break
}
} else {
libpodInspectData, err := ctr.Inspect(c.Bool("size"))
if err != nil {
inspectError = errors.Wrapf(err, "error getting libpod container inspect data %q", ctr.ID)
break
}
data, err = batchcontainer.GetCtrInspectInfo(ctr, libpodInspectData)
if err != nil {
inspectError = errors.Wrapf(err, "error parsing container data %q", ctr.ID)
break
}
}
}
if inspectError == nil {
inspectedItems = append(inspectedItems, data)
}
}
return inspectedItems, inspectError
}
|
