fix an overriding logic and load config problem

Fix an overriding logic in Inhearit function.
Alos, ToSpecGen function doesn't load the cgroup/image volume config from containers.conf.

Signed-off-by: karta0807913 <karta0807913@gmail.com>

test/e2e/config/containers-cgroup.conf

@@ -0,0 +1,12 @@
+[containers]
+netns="host"
+userns="host"
+ipcns="host"
+utsns="host"
+cgroupns="host"
+cgroups="disabled"
+log_driver = "k8s-file"
+[engine]
+cgroup_manager = "cgroupfs"
+events_logger="file"
+runtime="crun"

test/e2e/play_kube_test.go

@@ -175,8 +175,19 @@ spec:
   volumes:
     - name: foo
       secret:
-        secretName: oldsecret
-`
+        secretName: oldsecret`
+
+var simplePodYaml = `
+apiVersion: v1
+kind: Pod
+metadata:
+  name: libpod-test
+spec:
+  containers:
+  - image: quay.io/libpod/alpine_nginx:latest
+    command:
+      - sleep
+      - "3600"`
 
 var unknownKindYaml = `
 apiVersion: v1
@@ -4376,4 +4387,13 @@ ENV OPENJ9_JAVA_OPTIONS=%q
 		deleteAndTestSecret(podmanTest, "newsecret")
 	})
 
+	It("podman play kube with disabled cgroup", func() {
+		os.Setenv("CONTAINERS_CONF", "config/containers-cgroup.conf")
+		err := writeYaml(simplePodYaml, kubeYaml)
+		Expect(err).To(BeNil())
+
+		kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+		kube.WaitWithDefaultTimeout()
+		Expect(kube).Should(Exit(0))
+	})
 })