podman pod create --uts support

add support for the --uts flag in pod create, allowing users to avoid
issues with default values in containers.conf.

uts follows the same format as other namespace flags:
--uts=private (default), --uts=host, --uts=ns:PATH

resolves #13714

Signed-off-by: Charlie Doern <cdoern@redhat.com>

1 files changed, 2 insertions, 22 deletions

diff --git a/libpod/container_inspect.go b/libpod/container_inspect.go
index 93240812d..7ccd9fdbf 100644
--- a/libpod/container_inspect.go
+++ b/libpod/container_inspect.go
@@ -794,28 +794,8 @@ func (c *Container) generateInspectContainerHostConfig(ctrSpec *spec.Spec, named
 	hostConfig.PidMode = pidMode
 
 	// UTS namespace mode
-	utsMode := ""
-	if c.config.UTSNsCtr != "" {
-		utsMode = fmt.Sprintf("container:%s", c.config.UTSNsCtr)
-	} else if ctrSpec.Linux != nil {
-		// Locate the spec's UTS namespace.
-		// If there is none, it's uts=host.
-		// If there is one and it has a path, it's "ns:".
-		// If there is no path, it's default - the empty string.
-		for _, ns := range ctrSpec.Linux.Namespaces {
-			if ns.Type == spec.UTSNamespace {
-				if ns.Path != "" {
-					utsMode = fmt.Sprintf("ns:%s", ns.Path)
-				} else {
-					utsMode = "private"
-				}
-				break
-			}
-		}
-		if utsMode == "" {
-			utsMode = "host"
-		}
-	}
+	utsMode := c.NamespaceMode(spec.UTSNamespace, ctrSpec)
+
 	hostConfig.UTSMode = utsMode
 
 	// User namespace mode