111 lines
4.0 KiB
ReStructuredText
111 lines
4.0 KiB
ReStructuredText
Configure Load-Balancer Version 2
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=================================
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Starting in the OpenStack Liberty release, the
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`neutron LBaaS v2 API <http://developer.openstack.org/api-ref-networking-v2-ext.html>`_
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is now stable while the LBaaS v1 API has been deprecated. The LBaaS v2 reference
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driver is based on Octavia.
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Phase 1: Create DevStack + 2 nova instances
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--------------------------------------------
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First, set up a vm of your choice with at least 8 GB RAM and 16 GB disk space,
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make sure it is updated. Install git and any other developer tools you find useful.
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Install devstack
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::
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git clone https://git.openstack.org/openstack-dev/devstack
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cd devstack
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Edit your ``local.conf`` to look like
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::
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[[local|localrc]]
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# Load the external LBaaS plugin.
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enable_plugin neutron-lbaas https://git.openstack.org/openstack/neutron-lbaas
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enable_plugin octavia https://git.openstack.org/openstack/octavia
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# ===== BEGIN localrc =====
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DATABASE_PASSWORD=password
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ADMIN_PASSWORD=password
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SERVICE_PASSWORD=password
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RABBIT_PASSWORD=password
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# Enable Logging
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LOGFILE=$DEST/logs/stack.sh.log
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VERBOSE=True
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LOG_COLOR=True
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SCREEN_LOGDIR=$DEST/logs
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# Pre-requisite
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ENABLED_SERVICES=rabbit,mysql,key
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# Horizon
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ENABLED_SERVICES+=,horizon
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# Nova
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ENABLED_SERVICES+=,n-api,n-crt,n-cpu,n-cond,n-sch
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# Glance
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ENABLED_SERVICES+=,g-api,g-reg
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# Neutron
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ENABLED_SERVICES+=,q-svc,q-agt,q-dhcp,q-l3,q-meta
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# Enable LBaaS v2
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ENABLED_SERVICES+=,q-lbaasv2
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ENABLED_SERVICES+=,octavia,o-cw,o-hk,o-hm,o-api
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# Cinder
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ENABLED_SERVICES+=,c-api,c-vol,c-sch
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# Tempest
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ENABLED_SERVICES+=,tempest
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# ===== END localrc =====
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Run stack.sh and do some sanity checks
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::
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./stack.sh
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. ./openrc
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neutron net-list # should show public and private networks
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Create two nova instances that we can use as test http servers:
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::
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#create nova instances on private network
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nova boot --image $(nova image-list | awk '/ cirros-.*-x86_64-uec / {print $2}') --flavor 1 --nic net-id=$(neutron net-list | awk '/ private / {print $2}') node1
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nova boot --image $(nova image-list | awk '/ cirros-.*-x86_64-uec / {print $2}') --flavor 1 --nic net-id=$(neutron net-list | awk '/ private / {print $2}') node2
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nova list # should show the nova instances just created
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#add secgroup rules to allow ssh etc..
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neutron security-group-rule-create default --protocol icmp
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neutron security-group-rule-create default --protocol tcp --port-range-min 22 --port-range-max 22
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neutron security-group-rule-create default --protocol tcp --port-range-min 80 --port-range-max 80
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Set up a simple web server on each of these instances. ssh into each instance (username 'cirros', password 'cubswin:)') and run
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::
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MYIP=$(ifconfig eth0|grep 'inet addr'|awk -F: '{print $2}'| awk '{print $1}')
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while true; do echo -e "HTTP/1.0 200 OK\r\n\r\nWelcome to $MYIP" | sudo nc -l -p 80 ; done&
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Phase 2: Create your load balancers
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------------------------------------
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::
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neutron lbaas-loadbalancer-create --name lb1 private-subnet
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neutron lbaas-loadbalancer-show lb1 # Wait for the provisioning_status to be ACTIVE.
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neutron lbaas-listener-create --loadbalancer lb1 --protocol HTTP --protocol-port 80 --name listener1
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sleep 10 # Sleep since LBaaS actions can take a few seconds depending on the environment.
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neutron lbaas-pool-create --lb-algorithm ROUND_ROBIN --listener listener1 --protocol HTTP --name pool1
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sleep 10
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neutron lbaas-member-create --subnet private-subnet --address 10.0.0.3 --protocol-port 80 pool1
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sleep 10
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neutron lbaas-member-create --subnet private-subnet --address 10.0.0.5 --protocol-port 80 pool1
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Please note here that the "10.0.0.3" and "10.0.0.5" in the above commands are the IPs of the nodes
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(in my test run-thru, they were actually 10.2 and 10.4), and the address of the created LB will be
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reported as "vip_address" from the lbaas-loadbalancer-create, and a quick test of that LB is
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"curl that-lb-ip", which should alternate between showing the IPs of the two nodes.
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