The client and servers are in the same subnet. (This would not have worked without the recent IPv6 patches that let packets to loop back)
Signed-off-by: Gurucharan Shetty <g...@ovn.org> --- tests/system-ovn.at | 117 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) diff --git a/tests/system-ovn.at b/tests/system-ovn.at index d9ee371..68dc3c8 100755 --- a/tests/system-ovn.at +++ b/tests/system-ovn.at @@ -416,3 +416,120 @@ 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 - same subnet.]) +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:$ovs_base/ovn-sb/ovn-sb.sock \ + -- set Open_vSwitch . external-ids:ovn-encap-type=geneve \ + -- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \ + -- set bridge br-int fail-mode=secure other-config:disable-in-band=true + +# Start ovn-controller +start_daemon ovn-controller + +# Logical network: +# 1 logical switch "foo" (192.168.1.0/24) connected to router R1. +# foo has foo1, foo2, foo3, foo4 as logical ports. +# +# Loadbalancer VIPs in 30.0.0.0/24 network. Router is needed for default +# gateway. We will test load-balancing with foo1 as a client and foo2, foo3 and +# foo4 as servers. + +ovn-nbctl create Logical_Router name=R1 +ovn-nbctl ls-add foo + +# Connect foo to R1 +ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24 +ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \ + type=router options:router-port=foo addresses=\"00:00:01:01:02:03\" + +# Create logical port 'foo1', 'foo2', 'foo3' and 'foo4' in switch 'foo'. +ADD_NAMESPACES(foo1) +ADD_VETH(foo1, foo1, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \ + "192.168.1.1") +ovn-nbctl lsp-add foo foo1 \ +-- lsp-set-addresses foo1 "f0:00:00:01:02:03 192.168.1.2" + +ADD_NAMESPACES(foo2) +ADD_VETH(foo2, foo2, br-int, "192.168.1.3/24", "f0:00:00:01:02:04", \ + "192.168.1.1") +ovn-nbctl lsp-add foo foo2 \ +-- lsp-set-addresses foo2 "f0:00:00:01:02:04 192.168.1.3" + +ADD_NAMESPACES(foo3) +ADD_VETH(foo3, foo3, br-int, "192.168.1.4/24", "f0:00:00:01:02:05", \ + "192.168.1.1") +ovn-nbctl lsp-add foo foo3 \ +-- lsp-set-addresses foo3 "f0:00:00:01:02:05 192.168.1.4" + +ADD_NAMESPACES(foo4) +ADD_VETH(foo4, foo4, br-int, "192.168.1.5/24", "f0:00:00:01:02:06", \ + "192.168.1.1") +ovn-nbctl lsp-add foo foo4 \ +-- lsp-set-addresses foo4 "f0:00:00:01:02:06 192.168.1.5" + +# Config OVN load-balancer with a VIP. +uuid=`ovn-nbctl create load_balancer vips:30.0.0.1="192.168.1.3,192.168.1.4,192.168.1.5"` +ovn-nbctl set logical_switch foo load_balancer=$uuid + +# Config OVN load-balancer with another VIP (this time with ports). +ovn-nbctl set load_balancer $uuid vips:'"30.0.0.2:8000"'='"192.168.1.3:80,192.168.1.4:80,192.168.1.5:80"' + +# Wait for ovn-controller to catch up. +OVS_WAIT_UNTIL([ovs-ofctl -O OpenFlow13 dump-groups br-int | grep ct\(]) + +# Start webservers in 'foo2', 'foo3' and 'foo4'. +NETNS_DAEMONIZE([foo2], [[$PYTHON $srcdir/test-l7.py]], [http1.pid]) +NETNS_DAEMONIZE([foo3], [[$PYTHON $srcdir/test-l7.py]], [http2.pid]) +NETNS_DAEMONIZE([foo4], [[$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=<cleared>,dport=<cleared>),reply=(src=192.168.1.3,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>) +tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.4,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>) +tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.5,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>) +]) + +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=<cleared>,dport=<cleared>),reply=(src=192.168.1.3,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>) +tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.4,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>) +tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.5,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>) +]) + + +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 -- 1.9.1 _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
