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This document explains the steps to configure Load-Balancer in kilo. Change-Id: Ic8c2f3cca80e331b7275f689051c07d863d918ea Depends-On: I64a94aeeabe6357b5ea7796e34c9306c55c9ae67
3.9 KiB
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 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.