DockerCLI/command/node/ps.go

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package node
import (
"github.com/docker/docker/api/types"
"github.com/docker/docker/cli"
"github.com/docker/docker/cli/command"
"github.com/docker/docker/cli/command/idresolver"
"github.com/docker/docker/cli/command/task"
"github.com/docker/docker/opts"
"github.com/spf13/cobra"
"golang.org/x/net/context"
)
type psOptions struct {
nodeID string
noResolve bool
noTrunc bool
filter opts.FilterOpt
}
func newPsCommand(dockerCli *command.DockerCli) *cobra.Command {
opts := psOptions{filter: opts.NewFilterOpt()}
cmd := &cobra.Command{
Use: "ps [OPTIONS] [NODE]",
Short: "List tasks running on a node, defaults to current node",
Args: cli.RequiresRangeArgs(0, 1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.nodeID = "self"
if len(args) != 0 {
opts.nodeID = args[0]
}
return runPs(dockerCli, opts)
},
}
flags := cmd.Flags()
flags.BoolVar(&opts.noTrunc, "no-trunc", false, "Do not truncate output")
flags.BoolVar(&opts.noResolve, "no-resolve", false, "Do not map IDs to Names")
flags.VarP(&opts.filter, "filter", "f", "Filter output based on conditions provided")
return cmd
}
func runPs(dockerCli *command.DockerCli, opts psOptions) error {
client := dockerCli.Client()
ctx := context.Background()
nodeRef, err := Reference(ctx, client, opts.nodeID)
if err != nil {
return nil
}
node, _, err := client.NodeInspectWithRaw(ctx, nodeRef)
if err != nil {
return err
}
filter := opts.filter.Value()
filter.Add("node", node.ID)
tasks, err := client.TaskList(
ctx,
types.TaskListOptions{Filter: filter})
if err != nil {
return err
}
return task.Print(dockerCli, ctx, tasks, idresolver.New(client, opts.noResolve), opts.noTrunc)
}