Replace ryu with os_ken

Implements: blueprint ryu-framework-maintenace-transition
Change-Id: Ib2b8260fa7f124a5a8fbe674c6278f39f5d96b04

lower-constraints.txt

@@ -56,6 +56,7 @@ neutron==13.0.0.0b1
 openstackdocstheme==1.18.1
 openstacksdk==0.11.2
 os-client-config==1.28.0
+os-ken==0.3.0
 os-service-types==1.2.0
 os-testr==1.0.0
 os-xenapi==0.3.1
@@ -121,7 +122,6 @@ requestsexceptions==1.2.0
 restructuredtext-lint==1.1.1
 rfc3986==0.3.1
 Routes==2.3.1
-ryu==4.14
 simplejson==3.5.1
 six==1.10.0
 snowballstemmer==1.2.1

neutron_fwaas/privileged/netfilter_log/libnetfilter_log.py

@@ -22,15 +22,15 @@ import cffi
 import eventlet
 from eventlet.green import zmq
 from neutron_lib.utils import runtime
+from os_ken.lib import addrconv
+from os_ken.lib.packet import arp
+from os_ken.lib.packet import ether_types
+from os_ken.lib.packet import ethernet
+from os_ken.lib.packet import ipv4
+from os_ken.lib.packet import ipv6
 from oslo_log import log as logging
 from oslo_serialization import jsonutils
 from oslo_utils import excutils
-from ryu.lib import addrconv
-from ryu.lib.packet import arp
-from ryu.lib.packet import ether_types
-from ryu.lib.packet import ethernet
-from ryu.lib.packet import ipv4
-from ryu.lib.packet import ipv6
 
 from neutron_fwaas._i18n import _
 from neutron_fwaas import privileged
@@ -131,7 +131,7 @@ def _payload(nfa):
 
 
 def decode(nfa):
-    """This function will analysis nflog packet by using ryu packet library."""
+    """This function analyses nflog packet by using os-ken packet library."""
 
     prefix = ffi.string(libnflog.nflog_get_prefix(nfa))
     packet_hdr = libnflog.nflog_get_msg_packet_hdr(nfa)

requirements.txt

@@ -9,6 +9,7 @@ SQLAlchemy!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8,>=1.0.10 # MIT
 alembic>=0.8.10 # MIT
 six>=1.10.0 # MIT
 neutron-lib>=1.20.0 # Apache-2.0
+os-ken >= 0.3.0 # Apache-2.0
 oslo.config>=5.2.0 # Apache-2.0
 oslo.db>=4.27.0 # Apache-2.0
 oslo.log>=3.36.0 # Apache-2.0