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
|
package network
import (
"encoding/json"
"fmt"
"os"
"strings"
"text/tabwriter"
"text/template"
"github.com/containers/podman/v2/cmd/podman/registry"
"github.com/containers/podman/v2/cmd/podman/validate"
"github.com/containers/podman/v2/pkg/domain/entities"
"github.com/containers/podman/v2/pkg/network"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
var (
networklistDescription = `List networks`
networklistCommand = &cobra.Command{
Use: "ls",
Args: validate.NoArgs,
Short: "network list",
Long: networklistDescription,
RunE: networkList,
Example: `podman network list`,
}
)
var (
networkListOptions entities.NetworkListOptions
headers = "NAME\tVERSION\tPLUGINS\n"
defaultListRow = "{{.Name}}\t{{.Version}}\t{{.Plugins}}\n"
)
func networkListFlags(flags *pflag.FlagSet) {
// TODO enable filters based on something
//flags.StringSliceVarP(&networklistCommand.Filter, "filter", "f", []string{}, "Pause all running containers")
flags.StringVarP(&networkListOptions.Format, "format", "f", "", "Pretty-print networks to JSON or using a Go template")
flags.BoolVarP(&networkListOptions.Quiet, "quiet", "q", false, "display only names")
flags.StringVarP(&networkListOptions.Filter, "filter", "", "", "Provide filter values (e.g. 'name=podman')")
}
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: networklistCommand,
Parent: networkCmd,
})
flags := networklistCommand.Flags()
networkListFlags(flags)
}
func networkList(cmd *cobra.Command, args []string) error {
// validate the filter pattern.
if len(networkListOptions.Filter) > 0 {
tokens := strings.Split(networkListOptions.Filter, "=")
if len(tokens) != 2 {
return fmt.Errorf("invalid filter syntax : %s", networkListOptions.Filter)
}
}
responses, err := registry.ContainerEngine().NetworkList(registry.Context(), networkListOptions)
if err != nil {
return err
}
// quiet means we only print the network names
if networkListOptions.Quiet {
return quietOut(responses)
}
if strings.ToLower(networkListOptions.Format) == "json" {
return jsonOut(responses)
}
nlprs := make([]ListPrintReports, 0, len(responses))
for _, r := range responses {
nlprs = append(nlprs, ListPrintReports{r})
}
row := networkListOptions.Format
if len(row) < 1 {
row = defaultListRow
}
if !strings.HasSuffix(row, "\n") {
row += "\n"
}
format := "{{range . }}" + row + "{{end}}"
if !cmd.Flag("format").Changed {
format = headers + format
}
tmpl, err := template.New("listNetworks").Parse(format)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', 0)
if err := tmpl.Execute(w, nlprs); err != nil {
return err
}
return w.Flush()
}
func quietOut(responses []*entities.NetworkListReport) error {
for _, r := range responses {
fmt.Println(r.Name)
}
return nil
}
func jsonOut(responses []*entities.NetworkListReport) error {
b, err := json.MarshalIndent(responses, "", " ")
if err != nil {
return err
}
fmt.Println(string(b))
return nil
}
type ListPrintReports struct {
*entities.NetworkListReport
}
func (n ListPrintReports) Version() string {
return n.CNIVersion
}
func (n ListPrintReports) Plugins() string {
return network.GetCNIPlugins(n.NetworkConfigList)
}
|
