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Note

Currently, SONA security group implementation has two limitations. 1) It does not support the rule updates to the existing security group. 2) Due to the difficulties of connection tracking with OVS and OpenFlow, it does not allow ingress traffic via a connected session by default. So you need to add allow rule with ingress direction explicitly to access to the external networks.

 

Create a floating IP and associate it to net-A-01.

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Scale out compute or gateway node is easy. Just add the new node to the SONA network config and update the config to the ONOS-SONA.

HA Setup

Basically, ONOS itself provides HA by default when there are multiple instances in the cluster. This section describes how to add a proxy server beyond the ONOS cluster, and make use of it in Neutron as a single access point of the cluster. For the proxy server, we used the HA proxy server (http://www.haproxy.org) here.

 

Image Added

 

Install HA proxy

Code Block
languagebash
$ sudo add-apt-repository -y ppa:vbernat/haproxy-1.5
$ sudo add-apt-repository -y ppa:vbernat/haproxy-1.5
$ sudo apt-get update
$ sudo apt-get install -y haproxy

Configure HA proxy

Code Block
title/etc/haproxy/haproxy.cfg
global
    log /dev/log    local0
    log /dev/log    local1 notice
    chroot /var/lib/haproxy
    stats socket /run/haproxy/admin.sock mode 660 level admin
    stats timeout 30s
    user haproxy
    group haproxy
    daemon
 
    # Default SSL material locations
    ca-base /etc/ssl/certs
    crt-base /etc/ssl/private
 
    # Default ciphers to use on SSL-enabled listening sockets.
    # For more information, see ciphers(1SSL). This list is from:
    #  https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
    ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS
    ssl-default-bind-options no-sslv3
 
defaults
    log global
    mode    http
    option  httplog
    option  dontlognull
        timeout connect 5000
        timeout client  50000
        timeout server  50000
 
    errorfile 400 /etc/haproxy/errors/400.http
    errorfile 403 /etc/haproxy/errors/403.http
    errorfile 408 /etc/haproxy/errors/408.http
    errorfile 500 /etc/haproxy/errors/500.http
    errorfile 502 /etc/haproxy/errors/502.http
    errorfile 503 /etc/haproxy/errors/503.http
    errorfile 504 /etc/haproxy/errors/504.http
 
frontend localnodes
        bind *:8181
        mode http
        default_backend nodes
 
backend nodes
        mode http
        balance roundrobin
        option forwardfor
        http-request set-header X-Forwarded-Port %[dst_port]
        http-request add-header X-Forwarded-Proto https if { ssl_fc }
        option httpchk GET /onos/ui/login.html 
        server web01 [onos-01 IP address]:8181 check
        server web02 [onos-02 IP address]:8181 check
        server web03 [onos-03 IP address]:8181 check
 
listen stats *:1936
    stats enable
    stats uri /
    stats hide-version
    stats auth someuser:password

Configure Neutron

Set url_path to point to the proxy server in Neutron ML2 ONOS mechanism driver configuration and restart Neutron.

Code Block
titlenetworking-onos/etc/conf_onos.ini
# Configuration options for ONOS ML2 Mechanism driver
[onos]
# (StrOpt) ONOS ReST interface URL. This is a mandatory field.
url_path = http://[proxy-server IP]:8181/onos/openstackswitching
# (StrOpt) Username for authentication. This is a mandatory field.
username = onos
# (StrOpt) Password for authentication. This is a mandatory field.
password = rocks

Test HA

Stop one of the ONOS instance and check everything works fine.

Code Block
$ onos-service $OC1 stop