Moved getPodStatus to pod API to be used in varlink

Signed-off-by: haircommander <pehunt@redhat.com>

Closes: #1275
Approved by: mheon

1 files changed, 59 insertions, 2 deletions

diff --git a/libpod/pod_api.go b/libpod/pod_api.go
index d1e19063c..4d404587f 100644
--- a/libpod/pod_api.go
+++ b/libpod/pod_api.go
@@ -8,6 +8,15 @@ import (
 	"github.com/ulule/deepcopier"
 )
 
+const (
+	stopped = "Stopped"
+	running = "Running"
+	paused  = "Paused"
+	exited  = "Exited"
+	errored = "Error"
+	created = "Created"
+)
+
 // Start starts all containers within a pod
 // It combines the effects of Init() and Start() on a container
 // If a container has already been initialized it will be started,
@@ -362,9 +371,9 @@ func (p *Pod) Kill(signal uint) (map[string]error, error) {
 	return nil, nil
 }
 
-// Status gets the status of all containers in the pod
+// ContainerStatus gets the status of all containers in the pod
 // Returns a map of Container ID to Container Status
-func (p *Pod) Status() (map[string]ContainerStatus, error) {
+func (p *Pod) ContainerStatus() (map[string]ContainerStatus, error) {
 	p.lock.Lock()
 	defer p.lock.Unlock()
 
@@ -396,6 +405,54 @@ func (p *Pod) Status() (map[string]ContainerStatus, error) {
 	return status, nil
 }
 
+// Status determines the status of the pod based on the
+// statuses of the containers in the pod.
+// Returns a string representation of the pod status
+func (p *Pod) Status() (string, error) {
+	ctrStatuses, err := p.ContainerStatus()
+	if err != nil {
+		return errored, err
+	}
+	ctrNum := len(ctrStatuses)
+	if ctrNum == 0 {
+		return created, nil
+	}
+	statuses := map[string]int{
+		stopped: 0,
+		running: 0,
+		paused:  0,
+		created: 0,
+		errored: 0,
+	}
+	for _, ctrStatus := range ctrStatuses {
+		switch ctrStatus {
+		case ContainerStateStopped:
+			statuses[stopped]++
+		case ContainerStateRunning:
+			statuses[running]++
+		case ContainerStatePaused:
+			statuses[paused]++
+		case ContainerStateCreated, ContainerStateConfigured:
+			statuses[created]++
+		default:
+			statuses[errored]++
+		}
+	}
+
+	if statuses[running] > 0 {
+		return running, nil
+	} else if statuses[paused] == ctrNum {
+		return paused, nil
+	} else if statuses[stopped] == ctrNum {
+		return exited, nil
+	} else if statuses[stopped] > 0 {
+		return stopped, nil
+	} else if statuses[errored] > 0 {
+		return errored, nil
+	}
+	return created, nil
+}
+
 // Inspect returns a PodInspect struct to describe the pod
 func (p *Pod) Inspect() (*PodInspect, error) {
 	var (