Major fixes to podman ps --format=json output

A number of fields were never being populated. Populate them as
best we can.

Add a new field, exited, to indicate whether the exit code has
meaning (IE, the container has exited).

Fix handling of running time - it stops ticking when the
container stops. There is further work needed here, I suspect.

Signed-off-by: Matthew Heon <mheon@redhat.com>

cmd/podman/batchcontainer/container.go

@@ -38,6 +38,7 @@ type BatchContainerStruct struct {
 	ConConfig          *libpod.ContainerConfig
 	ConState           libpod.ContainerStatus
 	ExitCode           int32
+	Exited             bool
 	Pid                int
 	RootFsSize, RwSize int64
 	StartedTime        time.Time
@@ -63,6 +64,7 @@ func BatchContainerOp(ctr *libpod.Container, opts PsOptions) (BatchContainerStru
 		conState           libpod.ContainerStatus
 		err                error
 		exitCode           int32
+		exited             bool
 		pid                int
 		rootFsSize, rwSize int64
 		startedTime        time.Time
@@ -75,7 +77,7 @@ func BatchContainerOp(ctr *libpod.Container, opts PsOptions) (BatchContainerStru
 			return errors.Wrapf(err, "unable to obtain container state")
 		}
 
-		exitCode, _, err = c.ExitCode()
+		exitCode, exited, err = c.ExitCode()
 		if err != nil {
 			return errors.Wrapf(err, "unable to obtain container exit code")
 		}
@@ -115,6 +117,7 @@ func BatchContainerOp(ctr *libpod.Container, opts PsOptions) (BatchContainerStru
 		ConConfig:   conConfig,
 		ConState:    conState,
 		ExitCode:    exitCode,
+		Exited:      exited,
 		Pid:         pid,
 		RootFsSize:  rootFsSize,
 		RwSize:      rwSize,

cmd/podman/ps.go

@@ -58,6 +58,7 @@ type psJSONParams struct {
 	Command          []string                  `json:"command"`
 	CreatedAt        time.Time                 `json:"createdAt"`
 	ExitCode         int32                     `json:"exitCode"`
+	Exited           bool                      `json:"exited"`
 	RunningFor       time.Duration             `json:"runningFor"`
 	Status           string                    `json:"status"`
 	PID              int                       `json:"PID"`
@@ -581,17 +582,21 @@ func getAndSortJSONParams(containers []*libpod.Container, opts batchcontainer.Ps
 			ImageID:          batchInfo.ConConfig.RootfsImageID,
 			Command:          batchInfo.ConConfig.Spec.Process.Args,
 			CreatedAt:        batchInfo.ConConfig.CreatedTime,
+			ExitCode:         batchInfo.ExitCode,
+			Exited:           batchInfo.Exited,
 			Status:           batchInfo.ConState.String(),
+			PID:              batchInfo.Pid,
 			Ports:            batchInfo.ConConfig.PortMappings,
 			RootFsSize:       batchInfo.RootFsSize,
 			RWSize:           batchInfo.RwSize,
 			Names:            batchInfo.ConConfig.Name,
 			Labels:           batchInfo.ConConfig.Labels,
 			Mounts:           batchInfo.ConConfig.UserVolumes,
+			ContainerRunning: batchInfo.ConState == libpod.ContainerStateRunning,
 			Namespaces:       ns,
 		}
 
-		if !batchInfo.StartedTime.IsZero() {
+		if !batchInfo.StartedTime.IsZero() && batchInfo.ConState == libpod.ContainerStateRunning {
 			params.RunningFor = time.Since(batchInfo.StartedTime)
 		}