Add SRv6 5 node docker demo

This demo is intended to test SRv6 implementation. There are
two options how to run the demo. First one is to use VPP only
configuration and the second one uses honeycomb to configure
SRv6 on nodes.

For detailed information about the demo read documentation in
./asciidoc/Readme.adoc file. Follow the instructions to run
the demo and use provided commands to verify the operation
of VPP nodes.

Change-Id: I7d17db0096cc48b06e9148e7c78faaf9d7b8a97d
Signed-off-by: Michal Cmarada <michal.cmarada@pantheon.tech>

1 files changed, 222 insertions, 0 deletions

diff --git a/examples/docker/SRv6_5-node/start_demo.sh b/examples/docker/SRv6_5-node/start_demo.sh
new file mode 100755
index 000000000..83bb66bc7
--- /dev/null
+++ b/examples/docker/SRv6_5-node/start_demo.sh
@@ -0,0 +1,222 @@
+#! /bin/bash
+
+source ../utils.sh
+
+if [[ $UID != 0 ]]; then
+    echo "Please run this script with sudo:"
+    echo "sudo $0 $*"
+    exit 1
+fi
+
+if [ -z "$1" ]; then
+    echo "Demo type argument missing!"
+    echo "Usage:"
+    echo -e "\n'$0 <demo_type>' to run this command!\n"
+    echo "<demo_type> - vpp or hc"
+    exit 2
+fi
+
+demo_type=$1
+
+if [[ "$demo_type" != "vpp" && "$demo_type" != "hc" ]]; then
+    echo "Demo type argument is wrong!"
+    echo "<demo_type> - vpp or hc"
+    exit 3
+fi
+
+echo "Creating docker containers..."
+create_container vppA hc2vpp:latest 0.75
+create_container vppB hc2vpp:latest 0.75
+create_container vppC hc2vpp:latest 0.75
+create_container vppD hc2vpp:latest 0.75
+create_container vppE hc2vpp:latest 0.75
+
+echo "Starting docker containers..."
+start_container vppA &
+start_container vppB &
+start_container vppC &
+start_container vppD &
+start_container vppE &
+wait
+
+# Connect containers using veth interfaces
+echo "Creating SRv6 5 node demo topology."
+create_link vppA vethAB vethBA vppB
+create_link vppA vethAC vethCA vppC
+create_link vppB vethBD vethDB vppD
+create_link vppB vethBE vethEB vppE
+create_link vppC vethCD vethDC vppD
+create_link vppD vethDE vethED vppE
+
+echo "Creating hostA and hostE namespaces."
+sudo ip netns add VNET_A
+sudo ip netns add VNET_E
+create_link VNET_A vethA veth0 vppA
+create_link VNET_E vethE veth0 vppE
+
+sudo ip netns exec VNET_A ip addr add A::1/64 dev vethA
+sudo ip netns exec VNET_A ip route add E::/64 via A::A
+sudo ip netns exec VNET_E ip addr add E::1/64 dev vethE
+sudo ip netns exec VNET_E ip route add A::/64 via E::E
+
+echo "Starting VPPs in containers:"
+start_vpp_in_container vppA &
+start_vpp_in_container vppB &
+start_vpp_in_container vppC &
+start_vpp_in_container vppD &
+start_vpp_in_container vppE &
+wait
+
+echo "Configuring VPP interfaces and SRv6 routing:"
+echo "vppA:"
+#interface setup for A::
+sudo docker exec vppA vppctl create host-interface name veth0
+sudo docker exec vppA vppctl set interface state host-veth0 up
+sudo docker exec vppA vppctl set interface ip address host-veth0 A::A/64
+sudo docker exec vppA vppctl create host-interface name vethAB hw-addr 00:00:00:00:ab:0a
+sudo docker exec vppA vppctl set interface state host-vethAB up
+sudo docker exec vppA vppctl set interface ip address host-vethAB AB::A/64
+sudo docker exec vppA vppctl create host-interface name vethAC hw-addr 00:00:00:00:ac:0a
+sudo docker exec vppA vppctl set interface state host-vethAC up
+sudo docker exec vppA vppctl set interface ip address host-vethAC AC::A/64
+#setup neighbors
+sudo docker exec vppA vppctl set ip6 neighbor host-vethAC C::100 00:00:00:00:ac:0c
+sudo docker exec vppA vppctl set ip6 neighbor host-vethAB B::100 00:00:00:00:ab:0b
+sudo docker exec vppA vppctl ip route add C::100/128 via host-vethAC
+sudo docker exec vppA vppctl ip route add B::100/128 via host-vethAB
+#SR setup for A::
+if [[ "$demo_type" = "vpp" ]]; then
+    echo "VPPA - Configuring SRv6 via VPP:"
+    sudo docker exec vppA vppctl sr localsid address A::201 behavior end.dx6 host-veth0 A::1
+    sudo docker exec vppA vppctl set sr encaps source addr A::1
+    sudo docker exec vppA vppctl sr policy add bsid A::E next C::100 next D::100 next E::201 encap
+    sudo docker exec vppA vppctl sr steer l3 E::/64 via bsid A::E
+fi
+
+echo "vppB:"
+#interface setup for B::
+sudo docker exec vppB vppctl create host-interface name vethBA hw-addr 00:00:00:00:ab:0b
+sudo docker exec vppB vppctl set interface state host-vethBA up
+sudo docker exec vppB vppctl set interface ip address host-vethBA AB::B/64
+sudo docker exec vppB vppctl create host-interface name vethBD hw-addr 00:00:00:00:bd:0b
+sudo docker exec vppB vppctl set interface state host-vethBD up
+sudo docker exec vppB vppctl set interface ip address host-vethBD BD::B/64
+sudo docker exec vppB vppctl create host-interface name vethBE hw-addr 00:00:00:00:be:0b
+sudo docker exec vppB vppctl set interface state host-vethBE up
+sudo docker exec vppB vppctl set interface ip address host-vethBE BE::E/64
+#setup neighbors
+sudo docker exec vppB vppctl set ip6 neighbor host-vethBA A::201 00:00:00:00:ab:0a
+sudo docker exec vppB vppctl set ip6 neighbor host-vethBD D::100 00:00:00:00:bd:0d
+sudo docker exec vppB vppctl ip route add A::201/128 via host-vethBA
+sudo docker exec vppB vppctl ip route add D::100/128 via host-vethBD
+#SR setup for B::
+if [[ "$demo_type" = "vpp" ]]; then
+    echo "VPPB - Configuring SRv6 via VPP:"
+    sudo docker exec vppB vppctl sr localsid address B::100 behavior end
+fi
+
+echo "vppC:"
+#interface setup for C::
+sudo docker exec vppC vppctl create host-interface name vethCA hw-addr 00:00:00:00:ac:0c
+sudo docker exec vppC vppctl set interface state host-vethCA up
+sudo docker exec vppC vppctl set interface ip address host-vethCA AC::C/64
+sudo docker exec vppC vppctl create host-interface name vethCD hw-addr 00:00:00:00:cd:0c
+sudo docker exec vppC vppctl set interface state host-vethCD up
+sudo docker exec vppC vppctl set interface ip address host-vethCD CD::C/64
+#setup neighbors
+sudo docker exec vppC vppctl set ip6 neighbor host-vethCD D::100 00:00:00:00:cd:0d
+sudo docker exec vppC vppctl set ip6 neighbor host-vethCA A::201 00:00:00:00:ac:0a
+sudo docker exec vppC vppctl ip route add D::100/128 via host-vethCD
+sudo docker exec vppC vppctl ip route add A::201/128 via host-vethCA
+#SR setup for C::
+if [[ "$demo_type" = "vpp" ]]; then
+    echo "VPPC - Configuring SRv6 via VPP:"
+    sudo docker exec vppC vppctl sr localsid address C::100 behavior end
+fi
+
+echo "vppD:"
+#interface setup for D::
+sudo docker exec vppD vppctl create host-interface name vethDB hw-addr 00:00:00:00:bd:0d
+sudo docker exec vppD vppctl set interface state host-vethDB up
+sudo docker exec vppD vppctl set interface ip address host-vethDB BD::D/64
+sudo docker exec vppD vppctl create host-interface name vethDC hw-addr 00:00:00:00:cd:0d
+sudo docker exec vppD vppctl set interface state host-vethDC up
+sudo docker exec vppD vppctl set interface ip address host-vethDC CD::D/64
+sudo docker exec vppD vppctl create host-interface name vethDE hw-addr 00:00:00:00:de:0d
+sudo docker exec vppD vppctl set interface state host-vethDE up
+sudo docker exec vppD vppctl set interface ip address host-vethDE DE::D/64
+#setup neighbors
+sudo docker exec vppD vppctl set ip6 neighbor host-vethDE E::201 00:00:00:00:de:0e
+sudo docker exec vppD vppctl set ip6 neighbor host-vethDB B::100 00:00:00:00:bd:0b
+sudo docker exec vppD vppctl set ip6 neighbor host-vethDC C::100 00:00:00:00:cd:0c
+sudo docker exec vppD vppctl ip route add E::201/128 via host-vethDE
+sudo docker exec vppD vppctl ip route add B::100/128 via host-vethDB
+sudo docker exec vppD vppctl ip route add C::100/128 via host-vethDC
+#SR setup for D::
+if [[ "$demo_type" = "vpp" ]]; then
+    echo "VPPD - Configuring SRv6 via VPP:"
+    sudo docker exec vppD vppctl sr localsid address D::100 behavior end
+fi
+
+echo "vppE:"
+#interface setup for E::
+sudo docker exec vppE vppctl create host-interface name veth0
+sudo docker exec vppE vppctl set interface state host-veth0 up
+sudo docker exec vppE vppctl set interface ip address host-veth0 E::E/64
+sudo docker exec vppE vppctl create host-interface name vethEB hw-addr 00:00:00:00:be:0e
+sudo docker exec vppE vppctl set interface state host-vethEB up
+sudo docker exec vppE vppctl set interface ip address host-vethEB BE::E/64
+sudo docker exec vppE vppctl create host-interface name vethED hw-addr 00:00:00:00:de:0e
+sudo docker exec vppE vppctl set interface state host-vethED up
+sudo docker exec vppE vppctl set interface ip address host-vethED DE::E/64
+#setup neighbors
+sudo docker exec vppE vppctl set ip6 neighbor host-vethEB B::100 00:00:00:00:be:0b
+sudo docker exec vppE vppctl set ip6 neighbor host-vethED D::100 00:00:00:00:de:0d
+sudo docker exec vppE vppctl ip route add D::100/128 via host-vethED
+sudo docker exec vppE vppctl ip route add B::100/128 via host-vethEB
+#SR setup for E::
+if [[ "$demo_type" = "vpp" ]]; then
+    echo "VPPE - Configuring SRv6 via VPP:"
+    sudo docker exec vppE vppctl sr localsid address E::201 behavior end.dx6 host-veth0 E::1
+    sudo docker exec vppE vppctl set sr encaps source addr E::1
+    sudo docker exec vppE vppctl sr policy add bsid E::A next D::100 next B::100 next A::201 encap
+    sudo docker exec vppE vppctl sr steer l3 A::/64 via bsid E::A
+fi
+
+if [[ "$demo_type" = "hc" ]]; then
+    hc_plugins=`sudo docker exec vppA dpkg -L honeycomb |grep "io/fd/hc2vpp/srv6"`;
+
+    if [ -z "$hc_plugins" ]; then
+        echo "NO SRv6 plugins detected for Honeycomb in docker containers!!!"
+        echo "Ensure that you provided valid honeycomb version"
+        echo "Then recreate the docker image and restart demo."
+        exit 4
+    fi
+
+    echo "Configuring SRv6 via HC:"
+    echo "Starting Honeycomb in containers:"
+    start_hc_in_container vppA &
+    start_hc_in_container vppB &
+    start_hc_in_container vppC &
+    start_hc_in_container vppD &
+    start_hc_in_container vppE &
+    wait
+
+    echo "Configuring Honeycomb in containers:"
+    hc_configurations/hc_vpp_a_rest_config.sh &
+    hc_configurations/hc_vpp_b_rest_config.sh &
+    hc_configurations/hc_vpp_c_rest_config.sh &
+    hc_configurations/hc_vpp_d_rest_config.sh &
+    hc_configurations/hc_vpp_e_rest_config.sh &
+    wait
+fi
+
+echo "Demo started."
+
+echo "Ping hostA -> hostE, desired path: (A::201)->(C::100)->(D::100)->(E::201)"
+echo "ip netns exec VNET_A ping6 e::1 -c 10 -i 0.25"
+sudo ip netns exec VNET_A ping6 e::1 -c 10 -i 0.25
+
+echo "Ping hostE -> hostA, desired path: (E::201)->(D::100)->(B::100)->(A::201)"
+echo "ip netns exec VNET_E ping6 a::1 -c 10 -i 0.25"
+sudo ip netns exec VNET_E ping6 a::1 -c 10 -i 0.25