Run cc-shim in the network namespace of pod

Signed-off-by: Yanqiang Miao <[email protected]>

shim.go

@@ -170,7 +170,18 @@ func prepareAndStartShim(pod *Pod, shim shim, cid, token, url string, cmd Cmd) (
 		Detach:    cmd.Detach,
 	}
 
-	pid, err := shim.start(*pod, shimParams)
+	fs := &filesystem{}
+	netNS, err := fs.fetchPodNetwork(pod.ID())
+	if err != nil {
+		return nil, err
+	}
+
+	var pid int
+	err = pod.network.run(netNS.NetNsPath, func() error {
+		var shimErr error
+		pid, shimErr = shim.start(*pod, shimParams)
+		return shimErr
+	})
 	if err != nil {
 		return nil, err
 	}