create pod on the fly

when a user specifies --pod to podman create|run, we should create that pod
automatically.  the port bindings from the container are then inherited by
the infra container.  this signicantly improves the workflow of running
containers inside pods with podman.  the user is still encouraged to use
podman pod create to have more granular control of the pod create options.

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

1 files changed, 6 insertions, 1 deletions

diff --git a/pkg/spec/createconfig.go b/pkg/spec/createconfig.go
index a0fd40318..25f8cd7a1 100644
--- a/pkg/spec/createconfig.go
+++ b/pkg/spec/createconfig.go
@@ -496,8 +496,13 @@ func (c *CreateConfig) GetContainerCreateOptions(runtime *libpod.Runtime) ([]lib
 
 // CreatePortBindings iterates ports mappings and exposed ports into a format CNI understands
 func (c *CreateConfig) CreatePortBindings() ([]ocicni.PortMapping, error) {
+	return NatToOCIPortBindings(c.PortBindings)
+}
+
+// NatToOCIPortBindings iterates a nat.portmap slice and creates []ocicni portmapping slice
+func NatToOCIPortBindings(ports nat.PortMap) ([]ocicni.PortMapping, error) {
 	var portBindings []ocicni.PortMapping
-	for containerPb, hostPb := range c.PortBindings {
+	for containerPb, hostPb := range ports {
 		var pm ocicni.PortMapping
 		pm.ContainerPort = int32(containerPb.Int())
 		for _, i := range hostPb {