Install and configure for Ubuntu

This section describes how to install and configure the Load-balancer service for Ubuntu 18.04 (LTS).

Prerequisites

Before you install and configure the service, you must create a database, service credentials, and API endpoints.

1. Create the database, complete these steps:

   • Use the database access client to connect to the database server as the root user:

     # mysql
     

   • Create the octavia database:

     CREATE DATABASE octavia;
     

   • Grant proper access to the octavia database:

     GRANT ALL PRIVILEGES ON octavia.* TO 'octavia'@'localhost' \
     IDENTIFIED BY 'OCTAVIA_DBPASS';
     GRANT ALL PRIVILEGES ON octavia.* TO 'octavia'@'%' \
     IDENTIFIED BY 'OCTAVIA_DBPASS';
     

     Replace OCTAVIA_DBPASS with a suitable password.

   • Exit the database access client.

     exit;
     

2. Source the admin credentials to gain access to admin-only CLI commands:

   $ . admin-openrc
   

3. To create the Octavia service credentials, complete these steps:

   • Create the octavia user:

     $ openstack user create --domain default --password-prompt octavia
       User Password:
       Repeat User Password:
       +---------------------+----------------------------------+
       | Field               | Value                            |
       +---------------------+----------------------------------+
       | domain_id           | default                          |
       | enabled             | True                             |
       | id                  | b18ee38e06034b748141beda8fc8bfad |
       | name                | octavia                          |
       | options             | {}                               |
       | password_expires_at | None                             |
       +---------------------+----------------------------------+
     

   • Add the admin role to the octavia user:

     $ openstack role add --project service --user octavia admin
     

     Note

     This command produces no output.

     Note

     The Octavia service does not require the full admin role. Details of how to run Octavia without the admin role will come in a future version of this document.

   • Create the octavia service entities:

     $ openstack service create --name octavia --description "OpenStack Octavia" load-balancer
       +-------------+----------------------------------+
       | Field       | Value                            |
       +-------------+----------------------------------+
       | description | OpenStack Octavia                |
       | enabled     | True                             |
       | id          | d854f6fff0a64f77bda8003c8dedfada |
       | name        | octavia                          |
       | type        | load-balancer                    |
       +-------------+----------------------------------+
     

4. Create the Load-balancer service API endpoints:

   $ openstack endpoint create --region RegionOne \
     load-balancer public http://controller:9876
     +--------------+----------------------------------+
     | Field        | Value                            |
     +--------------+----------------------------------+
     | enabled      | True                             |
     | id           | 47cf883de46242c39f147c52f2958ebf |
     | interface    | public                           |
     | region       | RegionOne                        |
     | region_id    | RegionOne                        |
     | service_id   | d854f6fff0a64f77bda8003c8dedfada |
     | service_name | octavia                          |
     | service_type | load-balancer                    |
     | url          | http://controller:9876           |
     +--------------+----------------------------------+
   
   $ openstack endpoint create --region RegionOne \
     load-balancer internal http://controller:9876
     +--------------+----------------------------------+
     | Field        | Value                            |
     +--------------+----------------------------------+
     | enabled      | True                             |
     | id           | 225aef8465ef4df48a341aaaf2b0a390 |
     | interface    | internal                         |
     | region       | RegionOne                        |
     | region_id    | RegionOne                        |
     | service_id   | d854f6fff0a64f77bda8003c8dedfada |
     | service_name | octavia                          |
     | service_type | load-balancer                    |
     | url          | http://controller:9876           |
     +--------------+----------------------------------+
   
   $ openstack endpoint create --region RegionOne \
     load-balancer admin http://controller:9876
     +--------------+----------------------------------+
     | Field        | Value                            |
     +--------------+----------------------------------+
     | enabled      | True                             |
     | id           | 375eb5057fb546edbdf3ee4866179672 |
     | interface    | admin                            |
     | region       | RegionOne                        |
     | region_id    | RegionOne                        |
     | service_id   | d854f6fff0a64f77bda8003c8dedfada |
     | service_name | octavia                          |
     | service_type | load-balancer                    |
     | url          | http://controller:9876           |
     +--------------+----------------------------------+
   

5. Create octavia-openrc file

   cat << EOF >> $HOME/octavia-openrc
   export OS_PROJECT_DOMAIN_NAME=Default
   export OS_USER_DOMAIN_NAME=Default
   export OS_PROJECT_NAME=service
   export OS_USERNAME=octavia
   export OS_PASSWORD=OCTAVIA_PASS
   export OS_AUTH_URL=http://controller:5000
   export OS_IDENTITY_API_VERSION=3
   export OS_IMAGE_API_VERSION=2
   export OS_VOLUME_API_VERSION=3
   EOF
   

   Replace OCTAVIA_PASS with the password you chose for the octavia user in the Identity service.

6. Source the octavia credentials to gain access to octavia CLI commands:

   $ . $HOME/octavia-openrc
   

7. Create the amphora image

   For creating amphora image, please refer to the Building Octavia Amphora Images.

8. Upload the amphora image

   $ openstack image create --disk-format qcow2 --container-format bare \
     --private --tag amphora \
     --file <path to the amphora image> amphora-x64-haproxy
   

9. Create a flavor for the amphora image

   $ openstack flavor create --id 200 --vcpus 1 --ram 1024 \
     --disk 2 "amphora" --private
   

Install and configure components

1. Install the packages:

   # apt install octavia-api octavia-health-manager octavia-housekeeping \
     octavia-worker python3-octavia python3-octaviaclient
   

   If octavia-common and octavia-api packages ask you to configure, choose No.

2. Create the certificates

   $ git clone https://opendev.org/openstack/octavia.git
   $ cd octavia/bin/
   $ source create_dual_intermediate_CA.sh
   $ sudo mkdir -p /etc/octavia/certs/private
   $ sudo chmod 755 /etc/octavia -R
   $ sudo cp -p etc/octavia/certs/server_ca.cert.pem /etc/octavia/certs
   $ sudo cp -p etc/octavia/certs/server_ca-chain.cert.pem /etc/octavia/certs
   $ sudo cp -p etc/octavia/certs/server_ca.key.pem /etc/octavia/certs/private
   $ sudo cp -p etc/octavia/certs/client_ca.cert.pem /etc/octavia/certs
   $ sudo cp -p etc/octavia/certs/client.cert-and-key.pem /etc/octavia/certs/private
   

   For the production environment, Please refer to the Octavia Certificate Configuration Guide.

3. Source the octavia credentials to gain access to octavia CLI commands:

   $ . octavia-openrc
   

4. Create security groups and their rules

   $ openstack security group create lb-mgmt-sec-grp
   $ openstack security group rule create --protocol icmp lb-mgmt-sec-grp
   $ openstack security group rule create --protocol tcp --dst-port 22 lb-mgmt-sec-grp
   $ openstack security group rule create --protocol tcp --dst-port 9443 lb-mgmt-sec-grp
   $ openstack security group create lb-health-mgr-sec-grp
   $ openstack security group rule create --protocol udp --dst-port 5555 lb-health-mgr-sec-grp
   

5. Create a key pair for logging in to the amphora instance

   $ openstack keypair create --public-key ~/.ssh/id_rsa.pub mykey
   

   Note

   Check whether “ ~/.ssh/id_rsa.pub” file exists or not in advance. If the file does not exist, run the ssh-keygen command to create it.

6. Create dhclient.conf file for dhclient

   $ cd $HOME
   $ sudo mkdir -m755 -p /etc/dhcp/octavia
   $ sudo cp octavia/etc/dhcp/dhclient.conf /etc/dhcp/octavia
   

7. Create a network

   Note

   During the execution of the below command, please save the of BRNAME and MGMT_PORT_MAC in a notepad for further reference.

   $ OCTAVIA_MGMT_SUBNET=172.16.0.0/12
   $ OCTAVIA_MGMT_SUBNET_START=172.16.0.100
   $ OCTAVIA_MGMT_SUBNET_END=172.16.31.254
   $ OCTAVIA_MGMT_PORT_IP=172.16.0.2
   
   $ openstack network create lb-mgmt-net
   $ openstack subnet create --subnet-range $OCTAVIA_MGMT_SUBNET --allocation-pool \
     start=$OCTAVIA_MGMT_SUBNET_START,end=$OCTAVIA_MGMT_SUBNET_END \
     --network lb-mgmt-net lb-mgmt-subnet
   
   $ SUBNET_ID=$(openstack subnet show lb-mgmt-subnet -f value -c id)
   $ PORT_FIXED_IP="--fixed-ip subnet=$SUBNET_ID,ip-address=$OCTAVIA_MGMT_PORT_IP"
   
   $ MGMT_PORT_ID=$(openstack port create --security-group \
     lb-health-mgr-sec-grp --device-owner Octavia:health-mgr \
     --host=$(hostname) -c id -f value --network lb-mgmt-net \
     $PORT_FIXED_IP octavia-health-manager-listen-port)
   
   $ MGMT_PORT_MAC=$(openstack port show -c mac_address -f value \
     $MGMT_PORT_ID)
   
   $ sudo ip link add o-hm0 type veth peer name o-bhm0
   $ NETID=$(openstack network show lb-mgmt-net -c id -f value)
   $ BRNAME=brq$(echo $NETID|cut -c 1-11)
   $ sudo brctl addif $BRNAME o-bhm0
   $ sudo ip link set o-bhm0 up
   
   $ sudo ip link set dev o-hm0 address $MGMT_PORT_MAC
   $ sudo iptables -I INPUT -i o-hm0 -p udp --dport 5555 -j ACCEPT
   $ sudo dhclient -v o-hm0 -cf /etc/dhcp/octavia
   

8. Below settings are required to create veth pair after the host reboot

   Edit the /etc/systemd/network/o-hm0.network file

   [Match]
   Name=o-hm0
   
   [Network]
   DHCP=yes
   

   Edit the /etc/systemd/system/octavia-interface.service file

   [Unit]
   Description=Octavia Interface Creator
   Requires=neutron-linuxbridge-agent.service
   After=neutron-linuxbridge-agent.service
   
   [Service]
   Type=oneshot
   RemainAfterExit=true
   ExecStart=/opt/octavia-interface.sh start
   ExecStop=/opt/octavia-interface.sh stop
   
   [Install]
   WantedBy=multi-user.target
   

   Edit the /opt/octavia-interface.sh file

   #!/bin/bash
   
   set -ex
   
   MAC=$MGMT_PORT_MAC
   BRNAME=$BRNAME
   
   if [ "$1" == "start" ]; then
     ip link add o-hm0 type veth peer name o-bhm0
     brctl addif $BRNAME o-bhm0
     ip link set o-bhm0 up
     ip link set dev o-hm0 address $MAC
     ip link set o-hm0 up
     iptables -I INPUT -i o-hm0 -p udp --dport 5555 -j ACCEPT
   elif [ "$1" == "stop" ]; then
     ip link del o-hm0
   else
     brctl show $BRNAME
     ip a s dev o-hm0
   fi
   

   You need to substitute $MGMT_PORT_MAC and $BRNAME for the values in your environment.

9. Edit the /etc/octavia/octavia.conf file

   • In the [database] section, configure database access:

     [database]
     connection = mysql+pymysql://octavia:OCTAVIA_DBPASS@controller/octavia
     

     Replace OCTAVIA_DBPASS with the password you chose for the Octavia databases.

   • In the [DEFAULT] section, configure the transport url for RabbitMQ message broker.

     [DEFAULT]
     transport_url = rabbit://openstack:RABBIT_PASS@controller
     

     Replace RABBIT_PASS with the password you chose for the openstack account in RabbitMQ.

   • In the [oslo_messaging] section, configure the transport url for RabbitMQ message broker and topic name.

     [oslo_messaging]
     ...
     topic = octavia_prov
     

     Replace RABBIT_PASS with the password you chose for the openstack account in RabbitMQ.

   • In the [api_settings] section, configure the host IP and port to bind to.

     [api_settings]
     bind_host = 0.0.0.0
     bind_port = 9876
     

   • In the [keystone_authtoken] section, configure Identity service access.

     [keystone_authtoken]
     www_authenticate_uri = http://controller:5000
     auth_url = http://controller:5000
     memcached_servers = controller:11211
     auth_type = password
     project_domain_name = Default
     user_domain_name = Default
     project_name = service
     username = octavia
     password = OCTAVIA_PASS
     

     Replace OCTAVIA_PASS with the password you chose for the octavia user in the Identity service.

   • In the [service_auth] section, configure credentials for using other openstack services

     [service_auth]
     auth_url = http://controller:5000
     memcached_servers = controller:11211
     auth_type = password
     project_domain_name = Default
     user_domain_name = Default
     project_name = service
     username = octavia
     password = OCTAVIA_PASS
     

     Replace OCTAVIA_PASS with the password you chose for the octavia user in the Identity service.

   • In the [certificates] section, configure the absolute path to the CA Certificate, the Private Key for signing, and passphrases.

     [certificates]
     ...
     server_certs_key_passphrase = insecure-key-do-not-use-this-key
     ca_private_key_passphrase = not-secure-passphrase
     ca_private_key = /etc/octavia/certs/private/server_ca.key.pem
     ca_certificate = /etc/octavia/certs/server_ca.cert.pem
     

     Note

     The values of ca_private_key_passphrase and server_certs_key_passphrase are default and should not be used in production. The server_certs_key_passphrase must be a base64 compatible and 32 characters long string.

   • In the [haproxy_amphora] section, configure the client certificate and the CA.

     [haproxy_amphora]
     ...
     server_ca = /etc/octavia/certs/server_ca-chain.cert.pem
     client_cert = /etc/octavia/certs/private/client.cert-and-key.pem
     

   • In the [health_manager] section, configure the IP and port number for heartbeat.

     [health_manager]
     ...
     bind_port = 5555
     bind_ip = 172.16.0.2
     controller_ip_port_list = 172.16.0.2:5555
     

   • In the [controller_worker] section, configure worker settings.

     [controller_worker]
     ...
     amp_image_owner_id = <id of service project>
     amp_image_tag = amphora
     amp_ssh_key_name = mykey
     amp_secgroup_list = <lb-mgmt-sec-grp_id>
     amp_boot_network_list = <lb-mgmt-net_id>
     amp_flavor_id = 200
     network_driver = allowed_address_pairs_driver
     compute_driver = compute_nova_driver
     amphora_driver = amphora_haproxy_rest_driver
     client_ca = /etc/octavia/certs/client_ca.cert.pem
     

10. Populate the octavia database:

# octavia-db-manage --config-file /etc/octavia/octavia.conf upgrade head

Finalize installation

Restart the services:

# systemctl restart octavia-api octavia-health-manager octavia-housekeeping octavia-worker