AT_SETUP([ovn -- 2 LRs connected via LS, gateway router, NAT]) AT_KEYWORDS([ovnnat]) CHECK_CONNTRACK() ovn_start OVS_TRAFFIC_VSWITCHD_START() ADD_BR([br-int]) # Set external-ids in br-int needed for ovn-controller ovs-vsctl \ -- set Open_vSwitch . external-ids:system-id=hv1 \ -- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \ -- set Open_vSwitch . external-ids:ovn-encap-type=geneve \ -- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \ -- set bridge br-int fail-mode=secure other-config:disable-in-band=true # Start ovn-controller start_daemon ovn-controller # Logical network: # Two LRs - R1 and R2 that are connected to each other via LS "join" # in 20.0.0.0/24 network. R1 has switchess foo (192.168.1.0/24) and # bar (192.168.2.0/24) connected to it. R2 has alice (172.16.1.0/24) connected # to it. R2 is a gateway router on which we add NAT rules. # # foo -- R1 -- join - R2 -- alice # | # bar ---- ovn-nbctl create Logical_Router name=R1 ovn-nbctl create Logical_Router name=R2 options:chassis=hv1 ovn-nbctl ls-add foo ovn-nbctl ls-add bar ovn-nbctl ls-add alice ovn-nbctl ls-add join # Connect foo to R1 ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24 ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \ type=router options:router-port=foo addresses=\"00:00:01:01:02:03\" # Connect bar to R1 ovn-nbctl lrp-add R1 bar 00:00:01:01:02:04 192.168.2.1/24 ovn-nbctl lsp-add bar rp-bar -- set Logical_Switch_Port rp-bar \ type=router options:router-port=bar addresses=\"00:00:01:01:02:04\" # Connect alice to R2 ovn-nbctl lrp-add R2 alice 00:00:02:01:02:03 172.16.1.1/24 ovn-nbctl lsp-add alice rp-alice -- set Logical_Switch_Port rp-alice \ type=router options:router-port=alice addresses=\"00:00:02:01:02:03\" # Connect R1 to join ovn-nbctl lrp-add R1 R1_join 00:00:04:01:02:03 20.0.0.1/24 ovn-nbctl lsp-add join r1-join -- set Logical_Switch_Port r1-join \ type=router options:router-port=R1_join addresses='"00:00:04:01:02:03"' # Connect R2 to join ovn-nbctl lrp-add R2 R2_join 00:00:04:01:02:04 20.0.0.2/24 ovn-nbctl lsp-add join r2-join -- set Logical_Switch_Port r2-join \ type=router options:router-port=R2_join addresses='"00:00:04:01:02:04"' # Static routes. ovn-nbctl lr-route-add R1 172.16.1.0/24 20.0.0.2 ovn-nbctl lr-route-add R2 192.168.0.0/16 20.0.0.1 # Logical port 'foo1' in switch 'foo'. ADD_NAMESPACES(foo1) ADD_VETH(foo1, foo1, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \ "192.168.1.1") ovn-nbctl lsp-add foo foo1 \ -- lsp-set-addresses foo1 "f0:00:00:01:02:03 192.168.1.2" # Logical port 'alice1' in switch 'alice'. ADD_NAMESPACES(alice1) ADD_VETH(alice1, alice1, br-int, "172.16.1.2/24", "f0:00:00:01:02:04", \ "172.16.1.1") ovn-nbctl lsp-add alice alice1 \ -- lsp-set-addresses alice1 "f0:00:00:01:02:04 172.16.1.2" # Logical port 'bar1' in switch 'bar'. ADD_NAMESPACES(bar1) ADD_VETH(bar1, bar1, br-int, "192.168.2.2/24", "f0:00:00:01:02:05", \ "192.168.2.1") ovn-nbctl lsp-add bar bar1 \ -- lsp-set-addresses bar1 "f0:00:00:01:02:05 192.168.2.2" # Add a DNAT rule. ovn-nbctl -- --id=@nat create nat type="dnat" logical_ip=192.168.1.2 \ external_ip=30.0.0.2 -- add logical_router R2 nat @nat # Add a SNAT rule ovn-nbctl -- --id=@nat create nat type="snat" logical_ip=192.168.2.2 \ external_ip=30.0.0.1 -- add logical_router R2 nat @nat # wait for ovn-controller to catch up. OVS_WAIT_UNTIL([ovs-ofctl dump-flows br-int | grep ct\( | grep nat]) # 'alice1' should be able to ping 'foo1' directly. NS_CHECK_EXEC([alice1], [ping -q -c 3 -i 0.3 -w 2 192.168.1.2 | FORMAT_PING], \ [0], [dnl 3 packets transmitted, 3 received, 0% packet loss, time 0ms ]) # North-South DNAT: 'alice1' should also be able to ping 'foo1' via 30.0.0.2 NS_CHECK_EXEC([alice1], [ping -q -c 3 -i 0.3 -w 2 30.0.0.2 | FORMAT_PING], \ [0], [dnl 3 packets transmitted, 3 received, 0% packet loss, time 0ms ]) # Check conntrack entries. AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(172.16.1.2) | \ sed -e 's/zone=[[0-9]]*/zone=/'], [0], [dnl icmp,orig=(src=172.16.1.2,dst=30.0.0.2,id=),reply=(src=192.168.1.2,dst=172.16.1.2,id=),zone= ]) # South-North SNAT: 'bar1' pings 'alice1'. But 'alice1' receives traffic # from 30.0.0.1 NS_CHECK_EXEC([bar1], [ping -q -c 3 -i 0.3 -w 2 172.16.1.2 | FORMAT_PING], \ [0], [dnl 3 packets transmitted, 3 received, 0% packet loss, time 0ms ]) # We verify that SNAT indeed happened via 'dump-conntrack' command. AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \ sed -e 's/zone=[[0-9]]*/zone=/'], [0], [dnl icmp,orig=(src=192.168.2.2,dst=172.16.1.2,id=),reply=(src=172.16.1.2,dst=30.0.0.1,id=),zone= ]) # Add static routes to handle east-west NAT. ovn-nbctl lr-route-add R1 30.0.0.0/24 20.0.0.2 # Flush conntrack entries for easier output parsing of next test. AT_CHECK([ovs-appctl dpctl/flush-conntrack]) # East-west DNAT and SNAT: 'bar1' pings 30.0.0.2. 'foo1' receives it. NS_CHECK_EXEC([bar1], [ping -q -c 3 -i 0.3 -w 2 30.0.0.2 | FORMAT_PING], \ [0], [dnl 3 packets transmitted, 3 received, 0% packet loss, time 0ms ]) # As we have a static route that sends all packets with destination # 30.0.0.2 to R2, it hits the DNAT rule and converts 30.0.0.2 to 192.168.1.2 AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.2) | \ sed -e 's/zone=[[0-9]]*/zone=/'], [0], [dnl icmp,orig=(src=192.168.2.2,dst=30.0.0.2,id=),reply=(src=192.168.1.2,dst=192.168.2.2,id=),zone= ]) # As we have a SNAT rule that converts 192.168.2.2 to 30.0.0.1, the source is # SNATted and 'foo1' receives it. AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \ sed -e 's/zone=[[0-9]]*/zone=/'], [0], [dnl icmp,orig=(src=192.168.2.2,dst=192.168.1.2,id=),reply=(src=192.168.1.2,dst=30.0.0.1,id=),zone= ]) OVS_APP_EXIT_AND_WAIT([ovn-controller]) as ovn-sb OVS_APP_EXIT_AND_WAIT([ovsdb-server]) as ovn-nb OVS_APP_EXIT_AND_WAIT([ovsdb-server]) as northd OVS_APP_EXIT_AND_WAIT([ovn-northd]) as OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d"]) AT_CLEANUP AT_SETUP([ovn -- load-balancing]) AT_KEYWORDS([ovnlb]) CHECK_CONNTRACK() ovn_start OVS_TRAFFIC_VSWITCHD_START() ADD_BR([br-int]) # Set external-ids in br-int needed for ovn-controller ovs-vsctl \ -- set Open_vSwitch . external-ids:system-id=hv1 \ -- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \ -- set Open_vSwitch . external-ids:ovn-encap-type=geneve \ -- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \ -- set bridge br-int fail-mode=secure other-config:disable-in-band=true # Start ovn-controller start_daemon ovn-controller # Logical network: # 2 logical switches "foo" (192.168.1.0/24) and "bar" (172.16.1.0/24) # connected to a router R1. # foo has foo1 to act as a client. # bar has bar1, bar2, bar3 to act as servers. # # Loadbalancer VIPs in 30.0.0.0/24 network. ovn-nbctl create Logical_Router name=R1 ovn-nbctl ls-add foo ovn-nbctl ls-add bar # Connect foo to R1 ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24 ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \ type=router options:router-port=foo addresses=\"00:00:01:01:02:03\" # Connect bar to R1 ovn-nbctl lrp-add R1 bar 00:00:01:01:02:04 172.16.1.1/24 ovn-nbctl lsp-add bar rp-bar -- set Logical_Switch_Port rp-bar \ type=router options:router-port=bar addresses=\"00:00:01:01:02:04\" # Create logical port 'foo1' in switch 'foo'. ADD_NAMESPACES(foo1) ADD_VETH(foo1, foo1, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \ "192.168.1.1") ovn-nbctl lsp-add foo foo1 \ -- lsp-set-addresses foo1 "f0:00:00:01:02:03 192.168.1.2" # Create logical ports 'bar1', 'bar2', 'bar3' in switch 'bar'. ADD_NAMESPACES(bar1) ADD_VETH(bar1, bar1, br-int, "172.16.1.2/24", "f0:00:0f:01:02:03", \ "172.16.1.1") ovn-nbctl lsp-add bar bar1 \ -- lsp-set-addresses bar1 "f0:00:0f:01:02:03 172.16.1.2" ADD_NAMESPACES(bar2) ADD_VETH(bar2, bar2, br-int, "172.16.1.3/24", "f0:00:0f:01:02:04", \ "172.16.1.1") ovn-nbctl lsp-add bar bar2 \ -- lsp-set-addresses bar2 "f0:00:0f:01:02:04 172.16.1.3" ADD_NAMESPACES(bar3) ADD_VETH(bar3, bar3, br-int, "172.16.1.4/24", "f0:00:0f:01:02:05", \ "172.16.1.1") ovn-nbctl lsp-add bar bar3 \ -- lsp-set-addresses bar3 "f0:00:0f:01:02:05 172.16.1.4" # Config OVN load-balancer with a VIP. uuid=`ovn-nbctl create load_balancer vips:30.0.0.1="172.16.1.2,172.16.1.3,172.16.1.4"` ovn-nbctl set logical_switch foo load_balancer=$uuid # Config OVN load-balancer with another VIP (this time with ports). ovn-nbctl set load_balancer $uuid vips:'"30.0.0.2:8000"'='"172.16.1.2:80,172.16.1.3:80,172.16.1.4:80"' # Wait for ovn-controller to catch up. OVS_WAIT_UNTIL([ovs-ofctl -O OpenFlow13 dump-groups br-int | grep ct\(]) # Start webservers in 'bar1', 'bar2' and 'bar3'. NETNS_DAEMONIZE([bar1], [[$PYTHON $srcdir/test-l7.py]], [http1.pid]) NETNS_DAEMONIZE([bar2], [[$PYTHON $srcdir/test-l7.py]], [http2.pid]) NETNS_DAEMONIZE([bar3], [[$PYTHON $srcdir/test-l7.py]], [http3.pid]) dnl Should work with the virtual IP address through NAT for i in 1 2 3 4 5 6 7 8 9 10 11 12; do echo Request $i NS_CHECK_EXEC([foo1], [wget 30.0.0.1 -t 5 -T 1 --retry-connrefused -v -o wget$i.log]) done dnl Each server should have at least one connection. AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1)], [0], [dnl tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=,dport=),reply=(src=172.16.1.2,dst=192.168.1.2,sport=,dport=),protoinfo=(state=) tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=,dport=),reply=(src=172.16.1.3,dst=192.168.1.2,sport=,dport=),protoinfo=(state=) tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=,dport=),reply=(src=172.16.1.4,dst=192.168.1.2,sport=,dport=),protoinfo=(state=) ]) dnl Test load-balancing that includes L4 ports in NAT. for i in 1 2 3 4 5 6 7 8 9 10 11 12; do echo Request $i NS_CHECK_EXEC([foo1], [wget 30.0.0.2:8000 -t 5 -T 1 --retry-connrefused -v -o wget$i.log]) done dnl Each server should have at least one connection. AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.2)], [0], [dnl tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=,dport=),reply=(src=172.16.1.2,dst=192.168.1.2,sport=,dport=),protoinfo=(state=) tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=,dport=),reply=(src=172.16.1.3,dst=192.168.1.2,sport=,dport=),protoinfo=(state=) tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=,dport=),reply=(src=172.16.1.4,dst=192.168.1.2,sport=,dport=),protoinfo=(state=) ]) OVS_APP_EXIT_AND_WAIT([ovn-controller]) as ovn-sb OVS_APP_EXIT_AND_WAIT([ovsdb-server]) as ovn-nb OVS_APP_EXIT_AND_WAIT([ovsdb-server]) as northd OVS_APP_EXIT_AND_WAIT([ovn-northd]) as OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d"]) AT_CLEANUP