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install_nova-network.rst

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Install nova-network for OpenStack Folsom

Version: 1.0
Keywords:OpenStack Folsom, Nova-network, 2 NICs, Ubuntu Server 12.04 LTE (64 bits).
Status: Stable

Authors

Copyright (C) Jerry Luk <[email protected]>

This work is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License.

To view a copy of this license, visit [ http://creativecommons.org/licenses/by-sa/3.0/ ].

Contributors

Bilel Msekni [[email protected]]

Wana contribute ? Read the idea, send your contribution and get your name listed ;)

0. What is this about?

Many people have been complaining on how they are not being able to deploy OpenStack Folsom without having 3 NICs on the controller node. Fortunatly, there is a smart solution to install OpenStack Folsom with just two NICs on the controller node: We can use nova-network !!

You can use the original gudie to deploy OpenStack Folsom found here but you MUST comment out everything that is quantum related (which is important because once the end-point is created, deleting it will still result in some error behavior with Horizon) in the keystone scripts.

1. How to do it?

First make sure that your hardware meets these requirements:

Node Role:NICs
Control Node:eth0 (10.0.1.4), eth1 (192.168.1.101)
Compute Node:eth0 (10.0.1.2), eth1 (192.168.1.102)

Note: eth1 is connected to the external network while eth0 is connected to the internal network.

1.1. The controller node:

  • Add this script to /etc/network/if-pre-up.d/iptablesload to forward traffic to eth1:

    #!/bin/sh
iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
exit 0

  • Install these packages:

    nova-api nova-cert nova-compute nova-compute-kvm nova-doc nova-network nova-scheduler rabbitmq-server novnc nova-consoleauth nova-ajax-console-proxy nova-novncproxy

  • Prepare a Mysql database for Nova:

    mysql -u root -p
CREATE DATABASE nova;
GRANT ALL ON nova.* TO 'novaUser'@'%' IDENTIFIED BY 'novaPass';
quit;

  • Now modify authtoken section in the /etc/nova/api-paste.ini file to this:

    [filter:authtoken]
paste.filter_factory = keystone.middleware.auth_token:filter_factory
auth_host = 192.168.100.232
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = nova
admin_password = service_pass
signing_dirname = /tmp/keystone-signing-nova

  • Change your /etc/nova/nova.conf to look like this:

    [DEFAULT]

# LOGS/STATE
verbose=True
logdir=/var/log/nova
state_path=/var/lib/nova
lock_path=/run/lock/nova

# AUTHENTICATION
auth_strategy=keystone

# SCHEDULER
scheduler_driver=nova.scheduler.multi.MultiScheduler
compute_scheduler_driver=nova.scheduler.filter_scheduler.FilterScheduler

# CINDER
volume_api_class=nova.volume.cinder.API

# DATABASE
sql_connection=mysql://novaUser:[email protected]/nova

# COMPUTE
libvirt_type=kvm
libvirt_use_virtio_for_bridges=True
start_guests_on_host_boot=True
resume_guests_state_on_host_boot=True
api_paste_config=/etc/nova/api-paste.ini
allow_admin_api=True
use_deprecated_auth=False
nova_url=http://10.0.1.4:8774/v1.1/
root_helper=sudo nova-rootwrap /etc/nova/rootwrap.conf

# APIS
ec2_host=10.0.1.4
ec2_url=http://10.0.1.4:8773/services/Cloud
keystone_ec2_url=http://10.0.1.4:5000/v2.0/ec2tokens
s3_host=10.0.1.4
cc_host=10.0.1.4
metadata_host=10.0.1.4
#metadata_listen=0.0.0.0
enabled_apis=ec2,osapi_compute,metadata

# RABBITMQ
rabbit_host=10.0.1.4

# GLANCE
image_service=nova.image.glance.GlanceImageService
glance_api_servers=10.0.1.4:9292

# NETWORK
network_manager=nova.network.manager.FlatDHCPManager
force_dhcp_release=True
dhcpbridge_flagfile=/etc/nova/nova.conf
dhcpbridge=/usr/bin/nova-dhcpbridge
firewall_driver=nova.virt.libvirt.firewall.IptablesFirewallDriver
public_interface=eth1
flat_interface=eth0
flat_network_bridge=br100
fixed_range=10.0.1.129/25
network_size=128
flat_network_dhcp_start=10.0.1.129
flat_injected=False
connection_type=libvirt
multi_host=True

# NOVNC CONSOLE
novnc_enabled=True
novncproxy_base_url=http://192.168.1.101:6080/vnc_auto.html
vncserver_proxyclient_address=10.0.1.4
vncserver_listen=10.0.1.4

  • Don't forget to update the ownership rights of the nova directory:

    chown -R nova. /etc/nova
chmod 644 /etc/nova/nova.conf

  • Add this line to the sudoers file:

    sudo visudo
#Paste this line anywhere you like:
nova ALL=(ALL) NOPASSWD:ALL

  • Synchronize your database:

    nova-manage db sync

  • Restart nova-* services:

    cd /etc/init.d/; for i in $( ls nova-* ); do sudo service $i restart; done

  • Check for the smiling faces on nova-* services to confirm your installation:

    nova-manage service list

  • Use the following command to create fixed network:

    nova-manage network create private --fixed_range_v4=10.0.1.129/25 --num_networks=1 --bridge=br100 --bridge_interface=eth0 --network_size=128 --multi_host=T

  • Create the floating IPs:

    nova-manage floating create --ip_range=192.168.1.201

1.1. The compute node:

  • Install this packages:

    nova-compute nova-network nova-api-metadata

  • Edit your /etc/nova/nova.conf, Don't forget to change vncserver_proxyclient_address and vncserver_listen to match each compute host:

    [DEFAULT]

# LOGS/STATE
verbose=True
logdir=/var/log/nova
state_path=/var/lib/nova
lock_path=/run/lock/nova

# AUTHENTICATION
auth_strategy=keystone

# SCHEDULER
scheduler_driver=nova.scheduler.multi.MultiScheduler
compute_scheduler_driver=nova.scheduler.filter_scheduler.FilterScheduler

# CINDER
volume_api_class=nova.volume.cinder.API

# DATABASE
sql_connection=mysql://novaUser:[email protected]/nova

# COMPUTE
libvirt_type=kvm
libvirt_use_virtio_for_bridges=True
start_guests_on_host_boot=True
resume_guests_state_on_host_boot=True
api_paste_config=/etc/nova/api-paste.ini
allow_admin_api=True
use_deprecated_auth=False
nova_url=http://10.0.1.4:8774/v1.1/
root_helper=sudo nova-rootwrap /etc/nova/rootwrap.conf

# APIS
ec2_host=10.0.1.4
ec2_url=http://10.0.1.4:8773/services/Cloud
keystone_ec2_url=http://10.0.1.4:5000/v2.0/ec2tokens
s3_host=10.0.1.4
cc_host=10.0.1.4
metadata_host=10.0.1.4

# RABBITMQ
rabbit_host=10.0.1.4

# GLANCE
image_service=nova.image.glance.GlanceImageService
glance_api_servers=10.0.1.4:9292

# NETWORK
network_manager=nova.network.manager.FlatDHCPManager
force_dhcp_release=True
dhcpbridge_flagfile=/etc/nova/nova.conf
dhcpbridge=/usr/bin/nova-dhcpbridge
firewall_driver=nova.virt.libvirt.firewall.IptablesFirewallDriver
public_interface=eth1
flat_interface=eth0
flat_network_bridge=br100
fixed_range=10.0.1.129/25
network_size=128
flat_network_dhcp_start=10.0.1.129
flat_injected=False
connection_type=libvirt
multi_host=True

# NOVNC CONSOLE
novnc_enabled=True
novncproxy_base_url=http://192.168.1.101:6080/vnc_auto.html

# Change vncserver_proxyclient_address and vncserver_listen to match each compute host
vncserver_proxyclient_address=10.0.1.2
vncserver_listen=10.0.1.2

That's it, you can now move in to the Cinder install section in the original guide.

2. I have a better idea!

You have a better idea ? Share it with us and get it named after you :)