artifact: added CREATED column to artifact ls

Fixes: #27314

Signed-off-by: Volodymyr Pankin <volopank@gmail.com>

cmd/podman/artifact/list.go

@@ -3,12 +3,14 @@ package artifact
 import (
 	"fmt"
 	"os"
+	"time"
 
 	"github.com/containers/podman/v5/cmd/podman/common"
 	"github.com/containers/podman/v5/cmd/podman/registry"
 	"github.com/containers/podman/v5/cmd/podman/validate"
 	"github.com/containers/podman/v5/pkg/domain/entities"
 	"github.com/docker/go-units"
+	imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/spf13/cobra"
 	"go.podman.io/common/pkg/completion"
 	"go.podman.io/common/pkg/report"
@@ -40,11 +42,12 @@ type artifactListOutput struct {
 	Repository  string
 	Size        string
 	Tag         string
+	Created     string
 	VirtualSize string
 }
 
 var (
-	defaultArtifactListOutputFormat = "{{range .}}{{.Repository}}\t{{.Tag}}\t{{.Digest}}\t{{.Size}}\n{{end -}}"
+	defaultArtifactListOutputFormat = "{{range .}}{{.Repository}}\t{{.Tag}}\t{{.Digest}}\t{{.Created}}\t{{.Size}}\n{{end -}}"
 )
 
 func init() {
@@ -106,11 +109,22 @@ func outputTemplate(cmd *cobra.Command, lrs []*entities.ArtifactListReport) erro
 			artifactHash = artifactDigest.Encoded()
 		}
 
+		var created string
+		createdAnnotation, ok := lr.Manifest.Annotations[imgspecv1.AnnotationCreated]
+		if ok {
+			createdTime, err := time.Parse(time.RFC3339Nano, createdAnnotation)
+			if err != nil {
+				return err
+			}
+			created = units.HumanDuration(time.Since(createdTime)) + " ago"
+		}
+
 		artifacts = append(artifacts, artifactListOutput{
 			Digest:      artifactHash,
 			Repository:  named.Name(),
 			Size:        units.HumanSize(float64(lr.Artifact.TotalSizeBytes())),
 			Tag:         tag,
+			Created:     created,
 			VirtualSize: fmt.Sprintf("%d", lr.Artifact.TotalSizeBytes()),
 		})
 	}
@@ -118,6 +132,7 @@ func outputTemplate(cmd *cobra.Command, lrs []*entities.ArtifactListReport) erro
 	headers := report.Headers(artifactListOutput{}, map[string]string{
 		"REPOSITORY": "REPOSITORY",
 		"Tag":        "TAG",
+		"Created":    "CREATED",
 		"Size":       "SIZE",
 		"Digest":     "DIGEST",
 	})

docs/source/markdown/podman-artifact-ls.1.md.in

@@ -18,6 +18,7 @@ Print results with a Go template.
 
 | **Placeholder** | **Description**                                |
 |-----------------|------------------------------------------------|
+| .Created        | Elapsed time since the artifact was created    |
 | .Digest         | The computed digest of the artifact's manifest |
 | .Repository     | Repository name of the artifact                |
 | .Size           | Size artifact in human readable units          |
@@ -33,24 +34,24 @@ Print results with a Go template.
 List artifacts in the local store
 ```
 $ podman artifact ls
-REPOSITORY                TAG         DIGEST             SIZE
+REPOSITORY                TAG         DIGEST         CREATED          SIZE
-quay.io/artifact/foobar1  latest      ab609fad386d       2.097GB
+quay.io/artifact/foobar1  latest      ab609fad386d   6 hours ago      2.097GB
-quay.io/artifact/foobar2  special     cd734b558ceb       12.58MB
+quay.io/artifact/foobar2  special     cd734b558ceb   53 seconds ago   12.58MB
 ```
 
 List artifacts in the local store without truncating the digest
 ```
 $ podman artifact ls --no-trunc
-REPOSITORY                TAG         DIGEST                                                              SIZE
+REPOSITORY                TAG         DIGEST                                                              CREATED          SIZE
-quay.io/artifact/foobar1  latest      ab609fad386df1433f461b0643d9cf575560baf633809dcc9c190da6cc3a3c29    2.097GB
+quay.io/artifact/foobar1  latest      ab609fad386df1433f461b0643d9cf575560baf633809dcc9c190da6cc3a3c29    6 hours ago      2.097GB
-quay.io/artifact/foobar2  special     cd734b558ceb8ccc0281ca76530e1dea1eb479407d3163f75fb601bffb6f73d0    12.58MB
+quay.io/artifact/foobar2  special     cd734b558ceb8ccc0281ca76530e1dea1eb479407d3163f75fb601bffb6f73d0    53 seconds ago   12.58MB
 ```
 
 List artifacts in the local store without the title header
 ```
 $ podman artifact ls --noheading
-quay.io/artifact/foobar1  latest      ab609fad386d       2.097GB
+quay.io/artifact/foobar1  latest      ab609fad386d   6 hours ago      2.097GB
-quay.io/artifact/foobar2  special     cd734b558ceb       12.58MB
+quay.io/artifact/foobar2  special     cd734b558ceb   53 seconds ago   12.58MB
 ```
 
 List artifact digests and size using a --format

test/e2e/artifact_test.go

@@ -78,6 +78,16 @@ var _ = Describe("Podman artifact", func() {
 		// Verify if the virtual size values are present in the output
 		Expect(virtualSizes).To(ContainElement("4192"))
 		Expect(virtualSizes).To(ContainElement("10240"))
+
+		// Check if .Created is reported correctly
+		createdFormatSession := podmanTest.PodmanExitCleanly("artifact", "ls", "--format", "{{.Created}}")
+		created := createdFormatSession.OutputToStringArray()
+
+		Expect(created).To(HaveLen(2))
+
+		// Assuming the test runs less than a minute
+		humanReadableDurationRegexp := `^(Less than a second|1 second|\d+ seconds) ago$`
+		Expect(created).To(ContainElements(MatchRegexp(humanReadableDurationRegexp), MatchRegexp(humanReadableDurationRegexp)))
 	})
 
 	It("podman artifact simple add", func() {