Added devstack-with-lbaas-v2 installation documentation

This document explains the steps to configure Load-Balancer in
kilo.

Change-Id: Ic8c2f3cca80e331b7275f689051c07d863d918ea
Depends-On: I64a94aeeabe6357b5ea7796e34c9306c55c9ae67

doc/source/guides/devstack-with-lbaas-v2.rst

@@ -0,0 +1,99 @@
+Configure Load-Balancer in Kilo
+=================================
+
+The Kilo release of OpenStack will support Version 2 of the neutron load balancer. Until now, using OpenStack `LBaaS V2 <http://docs.openstack.org/api/openstack-network/2.0/content/lbaas_ext.html>`_ has required a good understanding of neutron and LBaaS architecture and several manual steps.
+
+
+Phase 1: Create DevStack + 2 nova instances
+--------------------------------------------
+
+First, set up a vm of your choice with at least 8 GB RAM and 16 GB disk space, make sure it is updated. Install git and any other developer tools you find useful.
+
+Install devstack
+
+  ::
+
+    git clone https://git.openstack.org/openstack-dev/devstack
+    cd devstack
+
+
+Edit your `local.conf` to look like
+
+  ::
+
+    [[local|localrc]]
+    # Load the external LBaaS plugin.
+    enable_plugin neutron-lbaas https://git.openstack.org/openstack/neutron-lbaas
+
+    # ===== BEGIN localrc =====
+    DATABASE_PASSWORD=password
+    ADMIN_PASSWORD=password
+    SERVICE_PASSWORD=password
+    SERVICE_TOKEN=password
+    RABBIT_PASSWORD=password
+    # Enable Logging
+    LOGFILE=$DEST/logs/stack.sh.log
+    VERBOSE=True
+    LOG_COLOR=True
+    SCREEN_LOGDIR=$DEST/logs
+    # Pre-requisite
+    ENABLED_SERVICES=rabbit,mysql,key
+    # Horizon
+    ENABLED_SERVICES+=,horizon
+    # Nova
+    ENABLED_SERVICES+=,n-api,n-crt,n-obj,n-cpu,n-cond,n-sch
+    IMAGE_URLS+=",https://launchpad.net/cirros/trunk/0.3.0/+download/cirros-0.3.0-x86_64-disk.img"
+    # Glance
+    ENABLED_SERVICES+=,g-api,g-reg
+    # Neutron
+    ENABLED_SERVICES+=,q-svc,q-agt,q-dhcp,q-l3,q-meta
+    # Enable LBaaS V2
+    ENABLED_SERVICES+=,q-lbaasv2
+    # Cinder
+    ENABLED_SERVICES+=,c-api,c-vol,c-sch
+    # Tempest
+    ENABLED_SERVICES+=,tempest
+    # ===== END localrc =====
+
+Run stack.sh and do some sanity checks
+
+  ::
+
+    ./stack.sh
+    . ./openrc
+
+    neutron net-list  # should show public and private networks
+
+Create two nova instances that we can use as test http servers:
+
+  ::
+
+    #create nova instances on private network
+    nova boot --image $(nova image-list | awk '/ cirros-0.3.0-x86_64-disk / {print $2}') --flavor 1 --nic net-id=$(neutron net-list | awk '/ private / {print $2}') node1
+    nova boot --image $(nova image-list | awk '/ cirros-0.3.0-x86_64-disk / {print $2}') --flavor 1 --nic net-id=$(neutron net-list | awk '/ private / {print $2}') node2
+    nova list # should show the nova instances just created
+
+    #add secgroup rule to allow ssh etc..
+    neutron security-group-rule-create default --protocol icmp
+    neutron security-group-rule-create default --protocol tcp --port-range-min 22 --port-range-max 22
+    neutron security-group-rule-create default --protocol tcp --port-range-min 80 --port-range-max 80
+
+Set up a simple web server on each of these instances. ssh into each instance (username 'cirros', password 'cubswin:)') and run
+
+ ::
+
+    MYIP=$(ifconfig eth0|grep 'inet addr'|awk -F: '{print $2}'| awk '{print $1}')
+    while true; do echo -e "HTTP/1.0 200 OK\r\n\r\nWelcome to $MYIP" | sudo nc -l -p 80 ; done&
+
+Phase 2: Create your load balancers
+------------------------------------
+
+ ::
+
+    neutron lbaas-loadbalancer-create --name lb1 private-subnet
+    neutron lbaas-listener-create --loadbalancer lb1 --protocol HTTP --protocol-port 80 --name listener1
+    neutron lbaas-pool-create --lb-algorithm ROUND_ROBIN --listener listener1 --protocol HTTP --name pool1
+    neutron lbaas-member-create  --subnet private-subnet --address 10.0.0.3 --protocol-port 80 pool1
+    neutron lbaas-member-create  --subnet private-subnet --address 10.0.0.5 --protocol-port 80 pool1
+
+Please note here that the "10.0.0.3" and "10.0.0.5" in the above commands are the IPs of the nodes (in my test run-thru, they were actually 10.2 and 10.4), and the address of the created LB will be reported as "vip_address" from the lbaas-loadbalancer-create, and a quick test of that LB is "curl that-lb-ip", which should alternate between showing the IPs of the two nodes.

doc/source/index.rst

@@ -68,6 +68,7 @@ Walk through various setups used by stackers
    guides/neutron
    guides/devstack-with-nested-kvm
    guides/nova
+   guides/devstack-with-lbaas-v2
 
 All-In-One Single VM
 --------------------