OpenStack Liberty : Configure Nova2015/12/23

	Install and Configure OpenStack Compute Service (Nova).
[1]	Add users and others for Nova in Keystone.

# add nova user (set in service project)

root@dlp:~#

openstack user create --domain default --project service --password servicepassword nova

+--------------------+----------------------------------+
| Field              | Value                            |
+--------------------+----------------------------------+
| default_project_id | 54015368c27f4e9b92094d7032228086 |
| domain_id          | default                          |
| enabled            | True                             |
| id                 | 8eda1ea66b7440fe8e60775e7d6e052b |
| name               | nova                             |
+--------------------+----------------------------------+

# add nova user in admin role

root@dlp:~#

openstack role add --project service --user nova admin

# add service entry for nova

root@dlp:~#

openstack service create --name nova --description "OpenStack Compute service" compute

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute service        |
| enabled     | True                             |
| id          | 4088216c8d9a46708fa9418114dd7ff3 |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+

# define keystone host

root@dlp:~#

export controller=10.0.0.30

# add endpoint for nova (public)

root@dlp:~#

openstack endpoint create --region RegionOne compute public http://$controller:8774/v2/%$tenant_id$s

+--------------+----------------------------------------+
| Field        | Value                                  |
+--------------+----------------------------------------+
| enabled      | True                                   |
| id           | d0f92d61f90a499ba581d47a69f8adf7       |
| interface    | public                                 |
| region       | RegionOne                              |
| region_id    | RegionOne                              |
| service_id   | 4088216c8d9a46708fa9418114dd7ff3       |
| service_name | nova                                   |
| service_type | compute                                |
| url          | http://10.0.0.30:8774/v2/%(tenant_id)s |
+--------------+----------------------------------------+

# add endpoint for nova (internal)

root@dlp:~#

openstack endpoint create --region RegionOne compute internal http://$controller:8774/v2/%$tenant_id$s

+--------------+----------------------------------------+
| Field        | Value                                  |
+--------------+----------------------------------------+
| enabled      | True                                   |
| id           | 943bb51cb9734ffa8fcf6667777ab186       |
| interface    | internal                               |
| region       | RegionOne                              |
| region_id    | RegionOne                              |
| service_id   | 4088216c8d9a46708fa9418114dd7ff3       |
| service_name | nova                                   |
| service_type | compute                                |
| url          | http://10.0.0.30:8774/v2/%(tenant_id)s |
+--------------+----------------------------------------+

# add endpoint for nova (admin)

root@dlp:~#

openstack endpoint create --region RegionOne compute admin http://$controller:8774/v2/%$tenant_id$s

+--------------+----------------------------------------+
| Field        | Value                                  |
+--------------+----------------------------------------+
| enabled      | True                                   |
| id           | c563434a7e1b4bf49cf05f3664ffa002       |
| interface    | admin                                  |
| region       | RegionOne                              |
| region_id    | RegionOne                              |
| service_id   | 4088216c8d9a46708fa9418114dd7ff3       |
| service_name | nova                                   |
| service_type | compute                                |
| url          | http://10.0.0.30:8774/v2/%(tenant_id)s |
+--------------+----------------------------------------+

[2]	Install Nova.

root@dlp:~#

apt-get -y install nova-api nova-cert nova-conductor nova-consoleauth nova-objectstore nova-scheduler nova-novncproxy nova-compute-kvm python-novaclient

[3]	Add a User and Database on MariaDB for Nova.

root@dlp:~#

mysql -u root -p

Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 42
Server version: 5.5.46-MariaDB-1ubuntu0.14.04.2 (Ubuntu)

Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]>

create database nova;

Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]>

grant all privileges on nova.* to nova@'localhost' identified by 'password';

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>

grant all privileges on nova.* to nova@'%' identified by 'password';

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>

flush privileges;

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>

exit

Bye

[4]	Configure Nova.

root@dlp:~#

mv /etc/nova/nova.conf /etc/nova/nova.conf.org

root@dlp:~#

vi /etc/nova/nova.conf

# create new

[DEFAULT]

# define own IP

my_ip = 10.0.0.30

# add if not need IPv6

use_ipv6 = false
state_path = /var/lib/nova
enabled_apis = ec2,osapi_compute,metadata
osapi_compute_listen = 0.0.0.0
osapi_compute_listen_port = 8774
rootwrap_config = /etc/nova/rootwrap.conf
api_paste_config = /etc/nova/api-paste.ini
auth_strategy = keystone
log_dir = /var/log/nova

# specify Memcached server

memcached_servers = 10.0.0.30:11211
scheduler_driver = nova.scheduler.filter_scheduler.FilterScheduler
notification_driver = nova.openstack.common.notifier.rpc_notifier
rpc_backend = rabbit

# enable VNC

[vnc]
enabled = True
vncserver_listen = 0.0.0.0
vncserver_proxyclient_address = $my_ip
novncproxy_base_url = http://10.0.0.30:6080/vnc_auto.html

# specify Glance server connection info

[glance]
host = 10.0.0.30
port = 9292
protocol = http

[oslo_concurrency]
lock_path = /var/lib/nova/tmp

# specify RabbitMQ server connection info

[oslo_messaging_rabbit]
rabbit_host = 10.0.0.30
rabbit_port = 5672
rabbit_userid = openstack
rabbit_password = password

# specify MariaDB server connection info

[database]
connection = mysql+pymysql://nova:password@10.0.0.30/nova

# specify Keystone server connection info

[keystone_authtoken]
auth_uri = http://10.0.0.30:5000
auth_url = http://10.0.0.30:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = nova
password = servicepassword

root@dlp:~#

chmod 640 /etc/nova/nova.conf

root@dlp:~#

chgrp nova /etc/nova/nova.conf

[5]	Configure Networking. The follows is for the case you use legacy nova-network function. But if you use Neutron Networking function, Refer to here to configure it. Anyway, legacy nova-network function is officially not recommended.

root@dlp:~#

apt-get -y install nova-network

root@dlp:~#

echo 'net.ipv4.ip_forward=1' >> /etc/sysctl.conf

root@dlp:~#

sysctl -p

net.ipv4.ip_forward = 1

root@dlp:~#

vi /etc/nova/nova.conf

# add follows in [DEFAULT] section

dhcpbridge_flagfile = /etc/nova/nova.conf
dhcpbridge = /usr/bin/nova-dhcpbridge
force_dhcp_release = True
libvirt_use_virtio_for_bridges = True
network_driver = nova.network.linux_net
libvirt_vif_driver = nova.virt.libvirt.vif.LibvirtGenericVIFDriver
linuxnet_interface_driver = nova.network.linux_net.LinuxBridgeInterfaceDriver
firewall_driver = nova.virt.libvirt.firewall.IptablesFirewallDriver
network_api_class = nova.network.api.API
security_group_api = nova
network_manager = nova.network.manager.FlatDHCPManager
network_size = 254
allow_same_net_traffic = False
multi_host = True
send_arp_for_ha = True
share_dhcp_address = True
force_dhcp_release = True

# specify nic for public

public_interface = eth0

# specify any name you like for bridge

flat_network_bridge = br100

# specify nic for flat DHCP bridge

flat_interface = eth1

[6]	Start Nova Service. If you don't use legacy nova-network, exclude the word "network" below.

root@dlp:~#

su -s /bin/bash nova -c "nova-manage db sync"

root@dlp:~#

for service in api conductor scheduler objectstore cert consoleauth compute novncproxy network; do
initctl restart nova-$service
done

# display status

root@dlp:~#

nova-manage service list

Binary           Host       Zone             Status     State Updated_At
nova-scheduler   dlp        internal         enabled    :-)   2015-12-24 13:21:13
nova-conductor   dlp        internal         enabled    :-)   2015-12-24 13:21:13
nova-cert        dlp        internal         enabled    :-)   2015-12-24 13:21:13
nova-consoleauth dlp        internal         enabled    :-)   2015-12-24 13:21:13
nova-compute     dlp        nova             enabled    :-)   2015-12-24 13:21:14
nova-network     dlp        internal         enabled    :-)   2015-12-24 13:21:13

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