Contrail R3.0 Manual installation on ubuntu(3)

Install HA modules

This topic describes how to install High Availability, haproxy and keepalived. In case of using external Load balancer, you don't need install them. Instead of that, properly configure the load balancer.
**Target Server: Contrail1-3

1.Set variables
Set variables of IP address, Physical NIC and so on for easy installation.
Modify sample below to IP address and servers of your actual environment.

HOST=10.84.50.131  ## Set IP address of an Installation server
IVIP=10.84.50.139  ## Set Virtual IP address of Control/Data
IVIP_name=10_84_50_139  ## An identification of keepalived for Control/Data
IDEV=eth0  ## A name of Physical NIC for Control/Data
EVIP_name=172_27_115_159  ## An identification of keepalived for Management
EVIP=172.27.115.159  ## Set Virtual IP address of Management
EDEV=eth1  ## A name of Physical NIC for Management
PRIORITY=100  ## A priority of Keepalived. Set unique number among 0-255 in each server. The server that has the biggest number elects as Master.
host1=10.84.50.131  ## Physical IP address for Control/Data of Contrail1
host2=10.84.50.132  ## Physical IP address for Control/Data of Contrail2
host3=10.84.50.133  ## Physical IP address for Control/Data of Contrail3

2.Install packages

apt-get install -y contrail-openstack-config

3.Configure haproxy
Modify configuration for Neutron, RabbitMQ, Contrail API, Discovery Server, Analytics API which needs IP address redundancy.、

External/Internal ports are below.(External port/Internal port)
Neutron
9696 / 9697
RabbitMQ
5673 / 5672
Contrail API
8082 / 9100
Discovery server
5998 / 9110
AnalyticsAPI
8081 / 9081

** Refer Juniper Official Document for Contrai Redundancy.

Copy and paste below command for Configuration.

sed -i -e '1a\ \ \ \ \ \ \ \ tune.bufsize 16384' /etc/haproxy/haproxy.cfg
sed -i -e '1a\ \ \ \ \ \ \ \ tune.maxrewrite 1024' /etc/haproxy/haproxy.cfg

echo '
listen contrail-config-stats :5937
   mode http
   stats enable
   stats uri /
   stats auth haproxy:contrail123

' >> /etc/haproxy/haproxy.cfg

echo "
##contrail-collector-marker-start
frontend  contrail-analytics-api *:8081
    default_backend    contrail-analytics-api

backend contrail-analytics-api
    option nolinger
    balance     roundrobin
    option tcp-check
    tcp-check connect port 6379
    default-server error-limit 1 on-error mark-down
    server $host1 $host1:9081 check inter 2000 rise 2 fall 3
    server $host2 $host2:9081 check inter 2000 rise 2 fall 3
    server $host3 $host3:9081 check inter 2000 rise 2 fall 3

#contrail-collector-marker-end


#contrail-config-marker-start

frontend  contrail-api *:8082
    default_backend    contrail-api-backend
    timeout client 3m

frontend neutron-server *:9696
    default_backend    neutron-server-backend

frontend  contrail-discovery *:5998
    default_backend    contrail-discovery-backend

backend neutron-server-backend
    option nolinger
    balance     roundrobin
    server $host1 $host1:9697 check inter 2000 rise 2 fall 3
    server $host2 $host2:9697 check inter 2000 rise 2 fall 3
    server $host3 $host3:9697 check inter 2000 rise 2 fall 3

backend contrail-api-backend
    option nolinger
    timeout server 3m
    balance     roundrobin
    server $host1 $host1:9100 check inter 2000 rise 2 fall 3
    server $host2 $host2:9100 check inter 2000 rise 2 fall 3
    server $host3 $host3:9100 check inter 2000 rise 2 fall 3

backend contrail-discovery-backend
    option nolinger
    balance     roundrobin
    server $host1 $host1:9110 check inter 2000 rise 2 fall 3
    server $host2 $host2:9110 check inter 2000 rise 2 fall 3
    server $host3 $host3:9110 check inter 2000 rise 2 fall 3

listen  rabbitmq 0.0.0.0:5673
    mode tcp
    maxconn 10000
    balance leastconn
    option tcpka
    option nolinger
    option forceclose
    timeout client 0
    timeout server 0
    timeout client-fin 60s
    timeout server-fin 60s
    server rabbit1 $host1:5672 weight 200 check inter 2000 rise 2 fall 3
    server rabbit2 $host2:5672 weight 100 check inter 2000 rise 2 fall 3 backup
    server rabbit3 $host3:5672 weight 100 check inter 2000 rise 2 fall 3 backup

#contrail-config-marker-end" >> /etc/haproxy/haproxy.cfg

4.Configure keepalived

echo "
vrrp_script chk_haproxy_INTERNAL_$IVIP_NAME {
        script \"pgrep -x haproxy > /dev/null\" # verify if pid exists
        interval 1
        timeout 3
        rise 2
        fall 2
}

vrrp_script chk_ctrldatanet_INTERNAL_$IVIP_NAME {
    script \"/opt/contrail/bin/chk_ctrldata.sh\"
    interval 1
    timeout 3
    rise 1
    fall 1
}

vrrp_instance INTERNAL_$IVIP_NAME {
        interface $IDEV
        state MASTER
        preempt_delay 7
        garp_master_delay 5
        garp_master_repeat 3
        garp_master_refresh 1
        advert_int 1
        virtual_router_id 100
        vmac_xmit_base
        priority  $PRIORITY
        virtual_ipaddress {
                $IVIP/24 dev $IDEV
        }
        track_script  {
                chk_haproxy_INTERNAL_$IVIP_NAME
        }

        track_script  {
            chk_ctrldatanet_INTERNAL_$IVIP_NAME
        }
        track_interface {
            $IDEV
        }
}

vrrp_script chk_haproxy_EXTERNAL_$EVIP_NAME {
        script \"pgrep -x haproxy > /dev/null\" # verify if pid exists
        interval 1
        timeout 3
        rise 2
        fall 2
}

vrrp_script chk_ctrldatanet_EXTERNAL_$EVIP_NAME {
    script \"/opt/contrail/bin/chk_ctrldata.sh\"
    interval 1
    timeout 3
    rise 1
    fall 1
}

vrrp_instance EXTERNAL_$EVIP_NAME {
        interface $EDEV
        state MASTER
        preempt_delay 7
        garp_master_delay 5
        garp_master_repeat 3
        garp_master_refresh 1
        advert_int 1
        virtual_router_id 100
        vmac_xmit_base
        priority  $PRIORITY
        virtual_ipaddress {
                $EVIP/24 dev $EDEV
        }
        track_script  {
                chk_haproxy_EXTERNAL_$EVIP_NAME
        }

        track_script  {
            chk_ctrldatanet_EXTERNAL_$EVIP_NAME
        }
        track_interface {
            $IDEV
            $EDEV
        }
}" > /etc/keepalived/keepalived.conf

5.Restart each process
Reflect modified configuration of haproxy and keepalived.

service keepalived restart
service haproxy restart

Next topic is "Install Contrail Database Node".