1 files changed, 229 insertions, 0 deletions
diff --git a/cmd/podman/pods/ps.go b/cmd/podman/pods/ps.go
new file mode 100644
index 000000000..8cb7b6266
--- /dev/null
+++ b/cmd/podman/pods/ps.go
@@ -0,0 +1,229 @@
+package pods
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+	"text/tabwriter"
+	"text/template"
+	"time"
+
+	"github.com/docker/go-units"
+
+	"github.com/containers/libpod/cmd/podman/registry"
+	"github.com/containers/libpod/pkg/domain/entities"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+var (
+	psDescription = "List all pods on system including their names, ids and current state."
+
+	// Command: podman pod _ps_
+	psCmd = &cobra.Command{
+		Use:     "ps",
+		Aliases: []string{"ls", "list"},
+		Short:   "list pods",
+		Long:    psDescription,
+		RunE:    pods,
+	}
+)
+
+var (
+	defaultHeaders string = "POD ID\tNAME\tSTATUS\tCREATED"
+	inputFilters   string
+	noTrunc        bool
+	psInput        entities.PodPSOptions
+)
+
+func init() {
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Mode:    []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+		Command: psCmd,
+		Parent:  podCmd,
+	})
+	flags := psCmd.Flags()
+	flags.BoolVar(&psInput.CtrNames, "ctr-names", false, "Display the container names")
+	flags.BoolVar(&psInput.CtrIds, "ctr-ids", false, "Display the container UUIDs. If no-trunc is not set they will be truncated")
+	flags.BoolVar(&psInput.CtrStatus, "ctr-status", false, "Display the container status")
+	// TODO should we make this a [] ?
+	flags.StringVarP(&inputFilters, "filter", "f", "", "Filter output based on conditions given")
+	flags.StringVar(&psInput.Format, "format", "", "Pretty-print pods to JSON or using a Go template")
+	flags.BoolVarP(&psInput.Latest, "latest", "l", false, "Act on the latest pod podman is aware of")
+	flags.BoolVar(&psInput.Namespace, "namespace", false, "Display namespace information of the pod")
+	flags.BoolVar(&psInput.Namespace, "ns", false, "Display namespace information of the pod")
+	flags.BoolVar(&noTrunc, "no-trunc", false, "Do not truncate pod and container IDs")
+	flags.BoolVarP(&psInput.Quiet, "quiet", "q", false, "Print the numeric IDs of the pods only")
+	flags.StringVar(&psInput.Sort, "sort", "created", "Sort output by created, id, name, or number")
+	if registry.IsRemote() {
+		_ = flags.MarkHidden("latest")
+	}
+}
+
+func pods(cmd *cobra.Command, args []string) error {
+	var (
+		w   io.Writer = os.Stdout
+		row string
+		lpr []ListPodReporter
+	)
+	if cmd.Flag("filter").Changed {
+		for _, f := range strings.Split(inputFilters, ",") {
+			split := strings.Split(f, "=")
+			if len(split) < 2 {
+				return errors.Errorf("filter input must be in the form of filter=value: %s is invalid", f)
+			}
+			psInput.Filters[split[0]] = append(psInput.Filters[split[0]], split[1])
+		}
+	}
+	responses, err := registry.ContainerEngine().PodPs(context.Background(), psInput)
+	if err != nil {
+		return err
+	}
+
+	if psInput.Format == "json" {
+		b, err := json.MarshalIndent(responses, "", "  ")
+		if err != nil {
+			return err
+		}
+		fmt.Println(string(b))
+		return nil
+	}
+
+	for _, r := range responses {
+		lpr = append(lpr, ListPodReporter{r})
+	}
+	headers, row := createPodPsOut()
+	if psInput.Quiet {
+		if noTrunc {
+			row = "{{.Id}}\n"
+		} else {
+			row = "{{slice .Id 0 12}}\n"
+		}
+	}
+	if cmd.Flag("format").Changed {
+		row = psInput.Format
+		if !strings.HasPrefix(row, "\n") {
+			row += "\n"
+		}
+	}
+	format := "{{range . }}" + row + "{{end}}"
+	if !psInput.Quiet && !cmd.Flag("format").Changed {
+		format = headers + format
+	}
+	tmpl, err := template.New("listPods").Parse(format)
+	if err != nil {
+		return err
+	}
+	if !psInput.Quiet {
+		w = tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', 0)
+	}
+	if err := tmpl.Execute(w, lpr); err != nil {
+		return err
+	}
+	if flusher, ok := w.(interface{ Flush() error }); ok {
+		return flusher.Flush()
+	}
+	return nil
+}
+
+func createPodPsOut() (string, string) {
+	var row string
+	headers := defaultHeaders
+	if noTrunc {
+		row += "{{.Id}}"
+	} else {
+		row += "{{slice .Id 0 12}}"
+	}
+
+	row += "\t{{.Name}}\t{{.Status}}\t{{.Created}}"
+
+	if psInput.CtrIds {
+		headers += "\tIDS"
+		row += "\t{{.ContainerIds}}"
+	}
+	if psInput.CtrNames {
+		headers += "\tNAMES"
+		row += "\t{{.ContainerNames}}"
+	}
+	if psInput.CtrStatus {
+		headers += "\tSTATUS"
+		row += "\t{{.ContainerStatuses}}"
+	}
+	if psInput.Namespace {
+		headers += "\tCGROUP\tNAMESPACES"
+		row += "\t{{.Cgroup}}\t{{.Namespace}}"
+	}
+	if !psInput.CtrStatus && !psInput.CtrNames && !psInput.CtrIds {
+		headers += "\t# OF CONTAINERS"
+		row += "\t{{.NumberOfContainers}}"
+
+	}
+	headers += "\tINFRA ID\n"
+	if noTrunc {
+		row += "\t{{.InfraId}}\n"
+	} else {
+		row += "\t{{slice .InfraId 0 12}}\n"
+	}
+	return headers, row
+}
+
+// ListPodReporter is a struct for pod ps output
+type ListPodReporter struct {
+	*entities.ListPodsReport
+}
+
+// Created returns a human readable created time/date
+func (l ListPodReporter) Created() string {
+	return units.HumanDuration(time.Since(l.ListPodsReport.Created)) + " ago"
+}
+
+// NumberofContainers returns an int representation for
+// the number of containers belonging to the pod
+func (l ListPodReporter) NumberOfContainers() int {
+	return len(l.Containers)
+}
+
+// Added for backwards compatibility with podmanv1
+func (l ListPodReporter) InfraID() string {
+	return l.InfraId()
+}
+
+// InfraId returns the infra container id for the pod
+// depending on trunc
+func (l ListPodReporter) InfraId() string {
+	if noTrunc {
+		return l.ListPodsReport.InfraId
+	}
+	return l.ListPodsReport.InfraId[0:12]
+}
+
+func (l ListPodReporter) ContainerIds() string {
+	var ctrids []string
+	for _, c := range l.Containers {
+		id := c.Id
+		if !noTrunc {
+			id = id[0:12]
+		}
+		ctrids = append(ctrids, id)
+	}
+	return strings.Join(ctrids, ",")
+}
+
+func (l ListPodReporter) ContainerNames() string {
+	var ctrNames []string
+	for _, c := range l.Containers {
+		ctrNames = append(ctrNames, c.Names)
+	}
+	return strings.Join(ctrNames, ",")
+}
+
+func (l ListPodReporter) ContainerStatuses() string {
+	var statuses []string
+	for _, c := range l.Containers {
+		statuses = append(statuses, c.Status)
+	}
+	return strings.Join(statuses, ",")
+}