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package main
import (
"context"
"encoding/json"
"errors"
"fmt"
"os"
"strconv"
"text/tabwriter"
"github.com/urfave/cli/v2"
"github.com/rootless-containers/rootlesskit/v2/pkg/port"
"github.com/rootless-containers/rootlesskit/v2/pkg/port/portutil"
)
var listPortsCommand = cli.Command{
Name: "list-ports",
Usage: "List ports",
ArgsUsage: "[flags]",
Flags: []cli.Flag{
&cli.BoolFlag{
Name: "json",
Usage: "Prints as JSON",
},
},
Action: listPortsAction,
}
func listPortsAction(clicontext *cli.Context) error {
c, err := newClient(clicontext)
if err != nil {
return err
}
pm := c.PortManager()
ctx := context.Background()
portStatuses, err := pm.ListPorts(ctx)
if err != nil {
return err
}
if clicontext.Bool("json") {
// Marshal per entry, for consistency with add-ports
// (and for potential streaming support)
for _, p := range portStatuses {
m, err := json.Marshal(p)
if err != nil {
return err
}
fmt.Println(string(m))
}
return nil
}
w := tabwriter.NewWriter(os.Stdout, 4, 8, 4, ' ', 0)
if _, err := fmt.Fprintln(w, "ID\tPROTO\tPARENTIP\tPARENTPORT\tCHILDIP\tCHILDPORT\t"); err != nil {
return err
}
for _, p := range portStatuses {
if _, err := fmt.Fprintf(w, "%d\t%s\t%s\t%d\t%s\t%d\t\n",
p.ID, p.Spec.Proto, p.Spec.ParentIP, p.Spec.ParentPort, p.Spec.ChildIP, p.Spec.ChildPort); err != nil {
return err
}
}
return w.Flush()
}
var addPortsCommand = cli.Command{
Name: "add-ports",
Usage: "Add ports",
ArgsUsage: "[flags] PARENTIP:PARENTPORT:CHILDPORT/PROTO [PARENTIP:PARENTPORT:CHILDPORT/PROTO...]",
Description: "Add exposed ports. The port spec is similar to `docker run -p`. e.g. \"127.0.0.1:8080:80/tcp\".",
Flags: []cli.Flag{
&cli.BoolFlag{
Name: "json",
Usage: "Prints as JSON",
},
},
Action: addPortsAction,
}
func addPortsAction(clicontext *cli.Context) error {
if clicontext.NArg() < 1 {
return errors.New("no port specified")
}
var portSpecs []port.Spec
for _, s := range clicontext.Args().Slice() {
sp, err := portutil.ParsePortSpec(s)
if err != nil {
return err
}
portSpecs = append(portSpecs, *sp)
}
c, err := newClient(clicontext)
if err != nil {
return err
}
pm := c.PortManager()
ctx := context.Background()
for _, sp := range portSpecs {
portStatus, err := pm.AddPort(ctx, sp)
if err != nil {
return err
}
if clicontext.Bool("json") {
m, err := json.Marshal(portStatus)
if err != nil {
return err
}
fmt.Println(string(m))
} else {
fmt.Printf("%d\n", portStatus.ID)
}
}
return nil
}
var removePortsCommand = cli.Command{
Name: "remove-ports",
Usage: "Remove ports",
ArgsUsage: "[flags] ID [ID...]",
Action: removePortsAction,
}
func removePortsAction(clicontext *cli.Context) error {
if clicontext.NArg() < 1 {
return errors.New("no ID specified")
}
var ids []int
for _, s := range clicontext.Args().Slice() {
id, err := strconv.Atoi(s)
if err != nil {
return err
}
ids = append(ids, id)
}
c, err := newClient(clicontext)
if err != nil {
return err
}
pm := c.PortManager()
ctx := context.Background()
for _, id := range ids {
if err := pm.RemovePort(ctx, id); err != nil {
return err
}
fmt.Printf("%d\n", id)
}
return nil
}
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