rework apiv2 wait endpoint|binding

added the ability to wait on a condition (stopped, running, paused...) for a container.  if a condition is not provided, wait will default to the stopped condition which uses the original wait code paths.  if the condition is stopped, the container exit code will be returned.

also, correct a mux issue we discovered.

Signed-off-by: Brent Baude <bbaude@redhat.com>

1 files changed, 25 insertions, 13 deletions

diff --git a/pkg/api/handlers/utils/containers.go b/pkg/api/handlers/utils/containers.go
index 402005581..07efef0f5 100644
--- a/pkg/api/handlers/utils/containers.go
+++ b/pkg/api/handlers/utils/containers.go
@@ -78,9 +78,12 @@ func RemoveContainer(w http.ResponseWriter, r *http.Request, force, vols bool) {
 }
 
 func WaitContainer(w http.ResponseWriter, r *http.Request) (int32, error) {
+	var (
+		err      error
+		interval time.Duration
+	)
 	runtime := r.Context().Value("runtime").(*libpod.Runtime)
 	decoder := r.Context().Value("decoder").(*schema.Decoder)
-	// /{version}/containers/(name)/restart
 	query := struct {
 		Interval  string `schema:"interval"`
 		Condition string `schema:"condition"`
@@ -91,25 +94,34 @@ func WaitContainer(w http.ResponseWriter, r *http.Request) (int32, error) {
 		Error(w, "Something went wrong.", http.StatusBadRequest, errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
 		return 0, err
 	}
-
-	if len(query.Condition) > 0 {
-		UnSupportedParameter("condition")
+	if _, found := r.URL.Query()["interval"]; found {
+		interval, err = time.ParseDuration(query.Interval)
+		if err != nil {
+			InternalServerError(w, err)
+			return 0, err
+		}
+	} else {
+		interval, err = time.ParseDuration("250ms")
+		if err != nil {
+			InternalServerError(w, err)
+			return 0, err
+		}
+	}
+	condition := define.ContainerStateStopped
+	if _, found := r.URL.Query()["condition"]; found {
+		condition, err = define.StringToContainerStatus(query.Condition)
+		if err != nil {
+			InternalServerError(w, err)
+			return 0, err
+		}
 	}
-
 	name := GetName(r)
 	con, err := runtime.LookupContainer(name)
 	if err != nil {
 		ContainerNotFound(w, name, err)
 		return 0, err
 	}
-	if len(query.Interval) > 0 {
-		d, err := time.ParseDuration(query.Interval)
-		if err != nil {
-			Error(w, "Something went wrong.", http.StatusBadRequest, errors.Wrapf(err, "Failed to parse %s for interval", query.Interval))
-		}
-		return con.WaitWithInterval(d)
-	}
-	return con.Wait()
+	return con.WaitForConditionWithInterval(interval, condition)
 }
 
 // GenerateFilterFuncsFromMap is used to generate un-executed functions that can be used to filter