show concise image info for crictl ps

fix #360
Signed-off-by: yanxuean <yan.xuean@zte.com.cn>

cmd/crictl/container.go

@@ -27,6 +27,7 @@ import (
 	"time"
 
 	units "github.com/docker/go-units"
+	godigest "github.com/opencontainers/go-digest"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
 	"golang.org/x/net/context"
@@ -625,11 +626,17 @@ func ListContainers(client pb.RuntimeServiceClient, opts listOptions) error {
 		ctm := units.HumanDuration(time.Now().UTC().Sub(createdAt)) + " ago"
 		if !opts.verbose {
 			id := c.Id
+			image := c.Image.Image
 			if !opts.noTrunc {
 				id = getTruncatedID(id, "")
+
+				// Now c.Image.Image is imageID in kubelet.
+				if digest, err := godigest.Parse(image); err == nil {
+					image = getTruncatedID(digest.String(), string(digest.Algorithm())+":")
+				}
 			}
 			fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%d\n",
-				id, c.Image.Image, ctm, convertContainerState(c.State), c.Metadata.Name, c.Metadata.Attempt)
+				id, image, ctm, convertContainerState(c.State), c.Metadata.Name, c.Metadata.Attempt)
 			continue
 		}
 

vendor.conf

@@ -15,6 +15,7 @@ github.com/modern-go/reflect2 05fbef0ca5da472bbf96c9322b84a53edc03c9fd
 github.com/onsi/ginkgo 67b9df7f55fe1165fd9ad49aca7754cce01a42b8
 github.com/onsi/gomega d59fa0ac68bb5dd932ee8d24eed631cdd519efc3
 github.com/opencontainers/selinux 4a2974bf1ee960774ffd517717f1f45325af0206
+github.com/opencontainers/go-digest c9281466c8b2f606084ac71339773efd177436e7
 github.com/pborman/uuid ca53cad383cad2479bbba7f7a1a05797ec1386e4
 github.com/sirupsen/logrus 89742aefa4b206dcf400792f3bd35b542998eb3b
 github.com/urfave/cli 8e01ec4cd3e2d84ab2fe90d8210528ffbb06d8ff