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Diffstat (limited to 'cmd/podman/containers/ps.go')
-rw-r--r--cmd/podman/containers/ps.go138
1 files changed, 94 insertions, 44 deletions
diff --git a/cmd/podman/containers/ps.go b/cmd/podman/containers/ps.go
index 90f4db19c..7da430bc6 100644
--- a/cmd/podman/containers/ps.go
+++ b/cmd/podman/containers/ps.go
@@ -12,6 +12,7 @@ import (
tm "github.com/buger/goterm"
"github.com/containers/common/pkg/report"
+ "github.com/containers/podman/v2/cmd/podman/parse"
"github.com/containers/podman/v2/cmd/podman/registry"
"github.com/containers/podman/v2/cmd/podman/utils"
"github.com/containers/podman/v2/cmd/podman/validate"
@@ -40,9 +41,8 @@ var (
listOpts = entities.ContainerListOptions{
Filters: make(map[string][]string),
}
- filters []string
- noTrunc bool
- defaultHeaders = "CONTAINER ID\tIMAGE\tCOMMAND\tCREATED\tSTATUS\tPORTS\tNAMES"
+ filters []string
+ noTrunc bool
)
func init() {
@@ -91,10 +91,6 @@ func checkFlags(c *cobra.Command) error {
if listOpts.Size || listOpts.Namespace {
return errors.Errorf("quiet conflicts with size and namespace")
}
- if c.Flag("format").Changed && !report.IsJSON(listOpts.Format) {
- // Quiet is overridden by Go template output.
- listOpts.Quiet = false
- }
}
// Size and namespace conflict with each other
if listOpts.Size && listOpts.Namespace {
@@ -155,7 +151,7 @@ func getResponses() ([]entities.ListContainer, error) {
return responses, nil
}
-func ps(cmd *cobra.Command, args []string) error {
+func ps(cmd *cobra.Command, _ []string) error {
if err := checkFlags(cmd); err != nil {
return err
}
@@ -180,24 +176,22 @@ func ps(cmd *cobra.Command, args []string) error {
switch {
case report.IsJSON(listOpts.Format):
return jsonOut(listContainers)
- case listOpts.Quiet:
+ case listOpts.Quiet && !cmd.Flags().Changed("format"):
return quietOut(listContainers)
}
- // Output table Watch > 0 will refresh screen
responses := make([]psReporter, 0, len(listContainers))
for _, r := range listContainers {
responses = append(responses, psReporter{r})
}
- var headers, format string
+ hdrs, format := createPsOut()
if cmd.Flags().Changed("format") {
- headers = ""
format = report.NormalizeFormat(listOpts.Format)
- } else {
- headers, format = createPsOut()
+ format = parse.EnforceRange(format)
}
- format = headers + "{{range . }}" + format + "{{end}}"
+ ns := strings.NewReplacer(".Namespaces.", ".")
+ format = ns.Replace(format)
tmpl, err := template.New("listContainers").Parse(format)
if err != nil {
@@ -206,13 +200,19 @@ func ps(cmd *cobra.Command, args []string) error {
w := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', 0)
defer w.Flush()
- if listOpts.Watch > 0 {
- for {
- var responses []psReporter
- tm.Clear()
- tm.MoveCursor(1, 1)
- tm.Flush()
+ headers := func() error { return nil }
+ if !(listOpts.Quiet || cmd.Flags().Changed("format")) {
+ headers = func() error {
+ return tmpl.Execute(w, hdrs)
+ }
+ }
+ switch {
+ // Output table Watch > 0 will refresh screen
+ case listOpts.Watch > 0:
+ // responses will grow to the largest number of processes reported on, but will not thrash the gc
+ var responses []psReporter
+ for ; ; responses = responses[:0] {
if ctnrs, err := getResponses(); err != nil {
return err
} else {
@@ -221,18 +221,27 @@ func ps(cmd *cobra.Command, args []string) error {
}
}
+ tm.Clear()
+ tm.MoveCursor(1, 1)
+ tm.Flush()
+
+ if err := headers(); err != nil {
+ return err
+ }
if err := tmpl.Execute(w, responses); err != nil {
return err
}
if err := w.Flush(); err != nil {
+ // we usually do not care about Flush() failures but here do not loop if Flush() has failed
return err
}
+
time.Sleep(time.Duration(listOpts.Watch) * time.Second)
- tm.Clear()
- tm.MoveCursor(1, 1)
- tm.Flush()
}
- } else if listOpts.Watch < 1 {
+ default:
+ if err := headers(); err != nil {
+ return err
+ }
if err := tmpl.Execute(w, responses); err != nil {
return err
}
@@ -241,30 +250,36 @@ func ps(cmd *cobra.Command, args []string) error {
}
// cannot use report.Headers() as it doesn't support structures as fields
-func createPsOut() (string, string) {
+func createPsOut() ([]map[string]string, string) {
+ hdrs := report.Headers(psReporter{}, map[string]string{
+ "Cgroup": "cgroupns",
+ "CreatedHuman": "created",
+ "ID": "container id",
+ "IPC": "ipc",
+ "MNT": "mnt",
+ "NET": "net",
+ "PIDNS": "pidns",
+ "Pod": "pod id",
+ "PodName": "podname", // undo camelcase space break
+ "UTS": "uts",
+ "User": "userns",
+ })
+
var row string
if listOpts.Namespace {
- headers := "CONTAINER ID\tNAMES\tPID\tCGROUPNS\tIPC\tMNT\tNET\tPIDNS\tUSERNS\tUTS\n"
- row := "{{.ID}}\t{{.Names}}\t{{.Pid}}\t{{.Namespaces.Cgroup}}\t{{.Namespaces.IPC}}\t{{.Namespaces.MNT}}\t{{.Namespaces.NET}}\t{{.Namespaces.PIDNS}}\t{{.Namespaces.User}}\t{{.Namespaces.UTS}}\n"
- return headers, row
- }
- headers := defaultHeaders
- row += "{{.ID}}"
- row += "\t{{.Image}}\t{{.Command}}\t{{.CreatedHuman}}\t{{.Status}}\t{{.Ports}}\t{{.Names}}"
+ row = "{{.ID}}\t{{.Names}}\t{{.Pid}}\t{{.Namespaces.Cgroup}}\t{{.Namespaces.IPC}}\t{{.Namespaces.MNT}}\t{{.Namespaces.NET}}\t{{.Namespaces.PIDNS}}\t{{.Namespaces.User}}\t{{.Namespaces.UTS}}"
+ } else {
+ row = "{{.ID}}\t{{.Image}}\t{{.Command}}\t{{.CreatedHuman}}\t{{.Status}}\t{{.Ports}}\t{{.Names}}"
- if listOpts.Pod {
- headers += "\tPOD ID\tPODNAME"
- row += "\t{{.Pod}}\t{{.PodName}}"
- }
+ if listOpts.Pod {
+ row += "\t{{.Pod}}\t{{.PodName}}"
+ }
- if listOpts.Size {
- headers += "\tSIZE"
- row += "\t{{.Size}}"
+ if listOpts.Size {
+ row += "\t{{.Size}}"
+ }
}
-
- headers = report.NormalizeFormat(headers)
- row = report.NormalizeFormat(row)
- return headers, row
+ return hdrs, "{{range .}}" + row + "\n{{end}}"
}
type psReporter struct {
@@ -367,6 +382,41 @@ func (l psReporter) CreatedHuman() string {
return units.HumanDuration(time.Since(time.Unix(l.Created, 0))) + " ago"
}
+// Cgroup exposes .Namespaces.Cgroup
+func (l psReporter) Cgroup() string {
+ return l.Namespaces.Cgroup
+}
+
+// IPC exposes .Namespaces.IPC
+func (l psReporter) IPC() string {
+ return l.Namespaces.IPC
+}
+
+// MNT exposes .Namespaces.MNT
+func (l psReporter) MNT() string {
+ return l.Namespaces.MNT
+}
+
+// NET exposes .Namespaces.NET
+func (l psReporter) NET() string {
+ return l.Namespaces.NET
+}
+
+// PIDNS exposes .Namespaces.PIDNS
+func (l psReporter) PIDNS() string {
+ return l.Namespaces.PIDNS
+}
+
+// User exposes .Namespaces.User
+func (l psReporter) User() string {
+ return l.Namespaces.User
+}
+
+// UTS exposes .Namespaces.UTS
+func (l psReporter) UTS() string {
+ return l.Namespaces.UTS
+}
+
// portsToString converts the ports used to a string of the from "port1, port2"
// and also groups a continuous list of ports into a readable format.
func portsToString(ports []ocicni.PortMapping) string {
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-16 01:14:31 +0000