Ensure that containers in pods properly set hostname

When we moved to the new Namespace types in Specgen, we made a
distinction between taking a namespace from a pod, and taking it
from another container. Due to this new distinction, some code
that previously worked for both `--pod=$ID` and
`--uts=container:$ID` has accidentally become conditional on only
the latter case. This happened for Hostname - we weren't properly
setting it in cases where the container joined a pod.
Fortunately, this is an easy fix once we know to check the
condition.

Also, ensure that `podman pod inspect` actually prints hostname.

Fixes #6494

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

1 files changed, 2 insertions, 2 deletions

diff --git a/pkg/specgen/generate/oci.go b/pkg/specgen/generate/oci.go
index 11b18e2d0..266abd28d 100644
--- a/pkg/specgen/generate/oci.go
+++ b/pkg/specgen/generate/oci.go
@@ -118,7 +118,7 @@ func makeCommand(ctx context.Context, s *specgen.SpecGenerator, img *image.Image
 	return finalCommand, nil
 }
 
-func SpecGenToOCI(ctx context.Context, s *specgen.SpecGenerator, rt *libpod.Runtime, rtc *config.Config, newImage *image.Image, mounts []spec.Mount) (*spec.Spec, error) {
+func SpecGenToOCI(ctx context.Context, s *specgen.SpecGenerator, rt *libpod.Runtime, rtc *config.Config, newImage *image.Image, mounts []spec.Mount, pod *libpod.Pod) (*spec.Spec, error) {
 	var (
 		inUserNS bool
 	)
@@ -300,7 +300,7 @@ func SpecGenToOCI(ctx context.Context, s *specgen.SpecGenerator, rt *libpod.Runt
 	}
 
 	// NAMESPACES
-	if err := specConfigureNamespaces(s, &g, rt); err != nil {
+	if err := specConfigureNamespaces(s, &g, rt, pod); err != nil {
 		return nil, err
 	}
 	configSpec := g.Config