Merge pull request #20958 from rhatdan/ps

Support podman ps --format '{{ .Label label }}'

cmd/podman/containers/ps.go

@@ -189,6 +189,11 @@ func ps(cmd *cobra.Command, _ []string) error {
 	if err := checkFlags(cmd); err != nil {
 		return err
 	}
+
+	if !listOpts.Pod {
+		listOpts.Pod = strings.Contains(listOpts.Format, ".PodName")
+	}
+
 	for _, f := range filters {
 		split := strings.SplitN(f, "=", 2)
 		if len(split) == 1 {
@@ -336,6 +341,11 @@ func (l psReporter) ImageID() string {
 	return l.ListContainer.ImageID
 }
 
+// Labels returns a map of the pod's labels
+func (l psReporter) Label(name string) string {
+	return l.ListContainer.Labels[name]
+}
+
 // ID returns the ID of the container
 func (l psReporter) ID() string {
 	if !noTrunc {

cmd/podman/pods/ps.go

@@ -199,6 +199,11 @@ func (l ListPodReporter) Labels() map[string]string {
 	return l.ListPodsReport.Labels
 }
 
+// Label returns a map of the pod's labels
+func (l ListPodReporter) Label(name string) string {
+	return l.ListPodsReport.Labels[name]
+}
+
 // Networks returns the infra container network names in string format
 func (l ListPodReporter) Networks() string {
 	return strings.Join(l.ListPodsReport.Networks, ",")

docs/source/markdown/podman-ps.1.md

@@ -90,7 +90,7 @@ Valid placeholders for the Go template are listed below:
 | .Networks          | Show all networks connected to the container |
 | .Pid               | Process ID on host system                    |
 | .Pod               | Pod the container is associated with (SHA)   |
-| .PodName           | Seems to be empty no matter what             |
+| .PodName           | PodName of the container                     |
 | .Ports             | Exposed ports                                |
 | .Restarts          | Display the container restart count          |
 | .RunningFor        | Time elapsed since container was started     |

test/system/040-ps.bats

@@ -194,6 +194,41 @@ EOF
     is "${#lines[@]}" "1" "storage container has been removed"
 }
 
+@test "podman ps --format label" {
+    rand_value=$(random_string 10)
 
+    run_podman run -d --label mylabel=$rand_value $IMAGE sleep inf
+    cid=$output
+    is "$cid" "[0-9a-f]\{64\}$"
+
+    run_podman ps --format '{{ .Label "mylabel" }}'
+    is "$output" "$rand_value"
+
+    run_podman rm -t 0 -f $cid
+}
+
+@test "podman pod ps --format label" {
+    rand_value=$(random_string 10)
+
+    run_podman pod create --label mylabel=${rand_value} test
+
+    run_podman pod ps --format '{{ .Label "mylabel" }}'
+    is "$output" "$rand_value"
+
+    run_podman pod rm -t 0 -f test
+}
+
+@test "podman ps --format PodName" {
+    rand_value=$(random_string 10)
+
+    run_podman run -d --pod new:${rand_value} --label mylabel=$rand_value $IMAGE sleep inf
+    cid=$output
+    is "$cid" "[0-9a-f]\{64\}$"
+
+    run_podman ps --format '{{ .PodName }}'
+    is "$output" ".*$rand_value"
+
+    run_podman rm -t 0 -f $cid
+}
 
 # vim: filetype=sh