apiv2 container create using specgen

this uses the specgen structure to create containers rather than the outdated createconfig.  right now, only the apiv2 create is wired up.  eventually the cli will also have to be done.

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

pkg/api/handlers/utils/containers.go

@@ -1,6 +1,7 @@
 package utils
 
 import (
+	"context"
 	"fmt"
 	"net/http"
 	"syscall"
@@ -9,10 +10,19 @@ import (
 	"github.com/containers/libpod/cmd/podman/shared"
 	"github.com/containers/libpod/libpod"
 	"github.com/containers/libpod/libpod/define"
+	createconfig "github.com/containers/libpod/pkg/spec"
 	"github.com/gorilla/schema"
 	"github.com/pkg/errors"
 )
 
+// ContainerCreateResponse is the response struct for creating a container
+type ContainerCreateResponse struct {
+	// ID of the container created
+	ID string `json:"id"`
+	// Warnings during container creation
+	Warnings []string `json:"Warnings"`
+}
+
 func KillContainer(w http.ResponseWriter, r *http.Request) (*libpod.Container, error) {
 	runtime := r.Context().Value("runtime").(*libpod.Runtime)
 	decoder := r.Context().Value("decoder").(*schema.Decoder)
@@ -119,3 +129,18 @@ func GenerateFilterFuncsFromMap(r *libpod.Runtime, filters map[string][]string)
 	}
 	return filterFuncs, nil
 }
+
+func CreateContainer(ctx context.Context, w http.ResponseWriter, runtime *libpod.Runtime, cc *createconfig.CreateConfig) {
+	var pod *libpod.Pod
+	ctr, err := shared.CreateContainerFromCreateConfig(runtime, cc, ctx, pod)
+	if err != nil {
+		Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "CreateContainerFromCreateConfig()"))
+		return
+	}
+
+	response := ContainerCreateResponse{
+		ID:       ctr.ID(),
+		Warnings: []string{}}
+
+	WriteResponse(w, http.StatusCreated, response)
+}