Wednesday 4 June 2014

OpenStack Multi-node Installation : Havana



1. Requirements
Node Role:
NICs
Control Node:
eth0 (172.21.1.11), eth1 (10.133.43.2)/ 172.24.1.2 (In fig)
Network Node:
eth0 (172.21.1.12), eth1 (172.22.1.12), eth2 (10.133.43.3)/172.24.1.3( In fig)
Compute Node:
eth0 (172.21.1.101), eth1 (172.22.1.101)
Note 1: Always use dpkg -s <packagename> to make sure you are using havana packages
Note 2: This is my current network architecture, you can add as many compute node as you wish.



2. Controller Node
2.1. Preparing Ubuntu
After you install Ubuntu 12.04 or 13.04 Server 64bits, Go in sudo mode and don't leave it until the end of this guide:
sudo su
Add Havana repositories [Only for Ubuntu 12.04]:
apt-get install -y ubuntu-cloud-keyring
echo deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-updates/havana main >> /etc/apt/sources.list.d/havana.list
Update your system:
apt-get update -y
apt-get upgrade -y
apt-get dist-upgrade -y
2.2. Networking
Only one NIC should have an internet access, hence configure /etc/network/interfaces as follows:
#For Exposing OpenStack API over the internet
auto eth1
iface eth1 inet static
address 10.133.43.2
netmask 255.255.0.0
gateway 172.24.0.1
dns-nameservers 148.147.161.2

#Not internet connected(used for OpenStack management)
auto eth0
iface eth0 inet static
address 172.21.1.11
netmask 255.255.0.0
Restart the networking service:
service networking restart (# /etc/init.d/networking restart)
Preferrably reboot the machine J
2.3. MySQL & RabbitMQ
Install MySQL:
apt-get install -y mysql-server python-mysqldb
Configure mysql to accept all incoming requests:
sed -i 's/127.0.0.1/0.0.0.0/g' /etc/mysql/my.cnf
service mysql restart
2.4. RabbitMQ
Install RabbitMQ:
apt-get install -y rabbitmq-server
change the password of guest user for rabbitmq-server.
#rabbitmqctl change_password guest root123
Install NTP service:
apt-get install -y ntp
Create these databases:
mysql -u root -p

#Keystone
CREATE DATABASE keystone;
GRANT ALL ON keystone.* TO 'keystoneUser'@'%' IDENTIFIED BY 'keystonePass';

#Glance
CREATE DATABASE glance;
GRANT ALL ON glance.* TO 'glanceUser'@'%' IDENTIFIED BY 'glancePass';

#Neutron
CREATE DATABASE neutron;
GRANT ALL ON neutron.* TO 'neutronUser'@'%' IDENTIFIED BY 'neutronPass';

#Nova
CREATE DATABASE nova;
GRANT ALL ON nova.* TO 'novaUser'@'%' IDENTIFIED BY 'novaPass';

#Cinder
CREATE DATABASE cinder;
GRANT ALL ON cinder.* TO 'cinderUser'@'%' IDENTIFIED BY 'cinderPass';
GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'%' IDENTIFIED BY 'cinderPass';
quit;
2.5. Others
Install other services:
apt-get install -y vlan bridge-utils
Enable IP_Forwarding:
sed -i 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/' /etc/sysctl.conf

# To save you from rebooting, perform the following
sysctl net.ipv4.ip_forward=1
2.6. Keystone
Start by the keystone packages:
apt-get install -y keystone
Adapt the connection attribute in the /etc/keystone/keystone.conf to the new database:
connection = mysql://keystoneUser:keystonePass@172.21.1.11/keystone
Restart the identity service then synchronize the database:
openssl rand -hex 10
( suppose number generated is # fa46c0c6c50452627599 then uncomment the Admin_token in /etc/keystone/keystone.conf
And make its value equal to fa46c0c6c50452627599 )
service keystone restart
keystone-manage db_sync
Fill up the keystone database using the two scripts available in the Scripts folder of this git repository:
# Modify the **HOST_IP** and **EXT_HOST_IP** variables before executing the scripts

Also modify SERVICE_TOKEN and passwords.
 

# Replace QUANTUM and quantum with NEUTRON and neutron respectively.

chmod +x keystone_basic.sh
chmod +x keystone_endpoints_basic.sh
./keystone_basic.sh
./keystone_endpoints_basic.sh
Create a simple credential file and load it so you won't be bothered later:
nano creds
Modify the password.
#Paste the following:
export OS_TENANT_NAME=admin
export OS_USERNAME=admin
export OS_PASSWORD=root123
export OS_AUTH_URL="http://10.133.43.2:5000/v2.0/"

# Load it:
source creds
To test Keystone, we use a simple CLI command:
keystone user-list
2.7. Glance
We Move now to Glance installation:
apt-get install -y glance
Update /etc/glance/glance-api-paste.ini with:
[filter:authtoken]
paste.filter_factory = keystoneclient.middleware.auth_token:filter_factory
delay_auth_decision = true
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = glance
admin_password = root123
Update the /etc/glance/glance-registry-paste.ini with:
[filter:authtoken]
paste.filter_factory = keystoneclient.middleware.auth_token:filter_factory
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = glance
admin_password = root123
Update /etc/glance/glance-api.conf with:
sql_connection = mysql://glanceUser:glancePass@172.21.1.11/glance
And:
[paste_deploy]
flavor = keystone
Update the /etc/glance/glance-registry.conf with:
sql_connection = mysql://glanceUser:glancePass@172.21.1.11/glance
And:
[paste_deploy]
flavor = keystone
Restart the glance-api and glance-registry services:
service glance-api restart; service glance-registry restart
Synchronize the glance database:
glance-manage db_sync
To test Glance, upload the cirros cloud image directly from the internet:
glance image-create --name myFirstImage --is-public true --container-format bare --disk-format qcow2 --location http://download.cirros-cloud.net/0.3.1/cirros-0.3.1-x86_64-disk.img
Now list the image to see what you have just uploaded:
glance image-list
2.8. Neutron
Install the Neutron server and the OpenVSwitch package collection:
apt-get install -y neutron-server
Edit the OVS plugin configuration file /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini with:
#Under the database section
[DATABASE]
sql_connection = mysql://neutronUser:neutronPass@172.21.1.11/neutron
#Under the OVS section
[OVS]
tenant_network_type = gre
tunnel_id_ranges = 1:1000
enable_tunneling = True

#Firewall driver for realizing neutron security group function
[SECURITYGROUP]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
Edit /etc/neutron/api-paste.ini
[filter:authtoken]
paste.filter_factory = keystoneclient.middleware.auth_token:filter_factory
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = neutron
admin_password = root123
Update the /etc/neutron/neutron.conf:
auth_strategy = keystone
core_plugin = neutron.plugins.openvswitch.ovs_neutron_plugin.OVSNeutronPluginV2
rpc_backend = neutron.openstack.common.rpc.impl_kombu
rabbit_host = 172.21.1.11
rabbit_password = root123
[keystone_authtoken]
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
auth_uri = http:// 172.21.1.11:5000
auth_url = http:// 172.21.1.11:35357/v2.0
admin_tenant_name = service
admin_user = neutron
admin_password = root123
signing_dir = /var/lib/neutron/keystone-signing
Restart the neutron server:
service neutron-server restart
2.9. Nova
Start by installing nova components:
apt-get install -y nova-api nova-cert novnc nova-consoleauth nova-scheduler nova-novncproxy nova-doc nova-conductor
Now modify authtoken section in the /etc/nova/api-paste.ini file to this:
[filter:authtoken]
paste.filter_factory = keystoneclient.middleware.auth_token:filter_factory
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = nova
admin_password = root123
signing_dirname = /tmp/keystone-signing-nova
# Workaround for https://bugs.launchpad.net/nova/+bug/1154809
auth_version = v2.0
Modify the /etc/nova/nova.conf like this:
[DEFAULT]
logdir=/var/log/nova
state_path=/var/lib/nova
lock_path=/run/lock/nova
verbose=True
api_paste_config=/etc/nova/api-paste.ini
compute_scheduler_driver=nova.scheduler.simple.SimpleScheduler
rabbit_host=172.21.1.11
rabbit_password=root123
nova_url=http://172.21.1.11:8774/v1.1/
sql_connection=mysql://novaUser:novaPass@172.21.1.11/nova
root_helper=sudo nova-rootwrap /etc/nova/rootwrap.conf
# Auth
use_deprecated_auth=false
auth_strategy=keystone
# Imaging service
glance_api_servers=172.21.1.11:9292
image_service=nova.image.glance.GlanceImageService
# Vnc configuration
novnc_enabled=true
novncproxy_base_url=http://10.133.43.2:6080/vnc_auto.html
novncproxy_port=6080
vncserver_proxyclient_address=172.21.1.11
# Network settings
network_api_class=nova.network.neutronv2.api.API
neutron_url=http://172.21.1.11:9696
neutron_auth_strategy=keystone
neutron_admin_tenant_name=service
neutron_admin_username=neutron
neutron_admin_password=root123
neutron_admin_auth_url=http://172.21.1.11:35357/v2.0
libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver
linuxnet_interface_driver=nova.network.linux_net.LinuxOVSInterfaceDriver
#If you want Neutron + Nova Security groups
firewall_driver=nova.virt.firewall.NoopFirewallDriver
security_group_api=neutron
#If you want Nova Security groups only, comment the two lines above and uncomment line -1-.
#-1-firewall_driver=nova.virt.libvirt.firewall.IptablesFirewallDriver
#Metadata
service_neutron_metadata_proxy = True
neutron_metadata_proxy_shared_secret = helloOpenStack
# Compute #
# For KVM:
compute_driver=libvirt.LibvirtDriver
# Cinder #
volume_api_class=nova.volume.cinder.API
osapi_volume_listen_port=5900
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
Output should look like:
Binary           Host                                 Zone             Status     State Updated_At
nova-consoleauth os-controller                        internal         enabled    :-)   2013-10-28 05:52:10
nova-conductor   os-controller                        internal         enabled    :-)   2013-10-28 05:52:10
nova-cert        os-controller                        internal         enabled    :-)   2013-10-28 05:52:10
nova-scheduler   os-controller                        internal         enabled    :-)   2013-10-28 05:52:10
2.10. Cinder
Install the required packages:
apt-get install -y cinder-api cinder-scheduler cinder-volume iscsitarget open-iscsi iscsitarget-dkms
Configure the iscsi services:
sed -i 's/false/true/g' /etc/default/iscsitarget
Restart the services:
service iscsitarget start
service open-iscsi start
Note: You may also need to build iscsi target if you get “FATAL: Module iscsi_trgt not found”
               apt-get install module-assistant
               m-a a-i iscsitarge
               modprobe iscsi_trgt
 
IF this does not remove the FATAL error try this:
               apt-get install --reinstall iscsitarget-dkms

Configure /etc/cinder/api-paste.ini like the following:
[filter:authtoken]
paste.filter_factory = keystoneclient.middleware.auth_token:filter_factory
service_protocol = http
service_host = 10.133.43.2
service_port = 5000
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = cinder
admin_password = root123
signing_dir = /var/lib/cinder
Edit the /etc/cinder/cinder.conf to:
[DEFAULT]
rootwrap_config=/etc/cinder/rootwrap.conf
sql_connection = mysql://cinderUser:cinderPass@172.21.1.11/cinder
api_paste_config = /etc/cinder/api-paste.ini
iscsi_helper=ietadm
volume_name_template = volume-%s
volume_group = cinder-volumes
verbose = True
auth_strategy = keystone
iscsi_ip_address=172.21.1.11
Then, synchronize your database:
cinder-manage db sync
Finally, don't forget to create a volumegroup and name it cinder-volumes:
dd if=/dev/zero of=cinder-volumes bs=1 count=0 seek=2G
losetup /dev/loop2 cinder-volumes
fdisk /dev/loop2
#Type in the followings:
n
p
1
ENTER
ENTER
t
8e
w
Proceed to create the physical volume then the volume group:
pvcreate /dev/loop2
vgcreate cinder-volumes /dev/loop2
Note: Beware that this volume group gets lost after a system reboot. (Click Here to know how to load it after a reboot)
Restart the cinder services:
cd /etc/init.d/; for i in $( ls cinder-* ); do sudo service $i restart; done
Verify if cinder services are running:
cd /etc/init.d/; for i in $( ls cinder-* ); do sudo service $i status; done
2.11. Horizon
To install horizon, proceed like this
apt-get install -y openstack-dashboard memcached
If you don't like the OpenStack ubuntu theme, you can remove the package to disable it:
dpkg --purge openstack-dashboard-ubuntu-theme
Reload Apache and memcached:
service apache2 restart; service memcached restart
Check OpenStack Dashboard at http://10.133.43.2/horizon. We can login with the admin / root123
https://ask.openstack.org/en/question/6180/unable-to-login-to-openstack-dashboard-havana/
/etc/openstack-dashboard/local_settings.py:
OPENSTACK_HOST = "10.133.43.2"
OPENSTACK_KEYSTONE_URL = "http://%s:5000/v2.0" % OPENSTACK_HOST
OPENSTACK_KEYSTONE_DEFAULT_ROLE = "admin"

And then restart apache
service apache2 restart; service memcached restart

3. Network Node
3.1. Preparing the Node
After you install Ubuntu 12.04 or 13.04 Server 64bits, Go in sudo mode:
sudo su
Add Havana repositories [Only for Ubuntu 12.04]:
apt-get install -y ubuntu-cloud-keyring
echo deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-updates/havana main >> /etc/apt/sources.list.d/havana.list
Update your system:
apt-get update -y
apt-get upgrade -y
apt-get dist-upgrade -y
Install ntp service:
apt-get install -y ntp
Configure the NTP server to follow the controller node:
#Comment the ubuntu NTP servers
sed -i 's/server 0.ubuntu.pool.ntp.org/#server 0.ubuntu.pool.ntp.org/g' /etc/ntp.conf
sed -i 's/server 1.ubuntu.pool.ntp.org/#server 1.ubuntu.pool.ntp.org/g' /etc/ntp.conf
sed -i 's/server 2.ubuntu.pool.ntp.org/#server 2.ubuntu.pool.ntp.org/g' /etc/ntp.conf
sed -i 's/server 3.ubuntu.pool.ntp.org/#server 3.ubuntu.pool.ntp.org/g' /etc/ntp.conf

#Set the network node to follow up your controller node
sed -i 's/server ntp.ubuntu.com/server 172.21.1.11/g' /etc/ntp.conf

service ntp restart
Install other services:
apt-get install -y vlan bridge-utils
Enable IP_Forwarding:
sed -i 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/' /etc/sysctl.conf

# To save you from rebooting, perform the following
sysctl net.ipv4.ip_forward=1
Edit the /etc/sysctl.conf file, as follows:
net.ipv4.conf.all.rp_filter=0
net.ipv4.conf.default.rp_filter=0
# sysctl -p
3.2.Networking
3 NICs must be present:
# OpenStack management
auto eth0
iface eth0 inet static
address 172.21.1.12
netmask 255.255.0.0

# VM Configuration
auto eth1
iface eth1 inet static
address 172.22.1.12
netmask 255.255.0.0

# VM internet Access
auto eth2
iface eth2 inet static
address 10.133.43.3
gateway 172.24.0.1
dns-nameserver 148.147.161.2
netmask 255.255.0.0
Restart the networking service:
service networking restart (# /etc/init.d/networking restart)
Preferrably reboot the machine J
3.4. OpenVSwitch (Part1)
Install the openVSwitch:
apt-get install -y openvswitch-switch openvswitch-datapath-dkms
Start Open vSwitch:
# service openvswitch-switch restart
Create the bridges:
#br-int will be used for VM integration
ovs-vsctl add-br br-int

#br-ex is used to make to VM accessible from the internet
ovs-vsctl add-br br-ex
3.5. Neutron
Install the Neutron openvswitch agent, l3 agent and dhcp agent:
apt-get -y install neutron-plugin-openvswitch-agent neutron-dhcp-agent neutron-l3-agent neutron-metadata-agent
Edit /etc/neutron/api-paste.ini:
[filter:authtoken]
paste.filter_factory = keystoneclient.middleware.auth_token:filter_factory
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = neutron
admin_password = root123
Edit the OVS plugin configuration file /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini with:
#Under the database section
[DATABASE]
sql_connection = mysql://neutronUser:neutronPass@172.21.1.11/neutron
#Under the OVS section
[OVS]
tenant_network_type = gre
tunnel_id_ranges = 1:1000
integration_bridge = br-int
tunnel_bridge = br-tun

local_ip = 172.22.1.12
enable_tunneling = True
#Firewall driver for realizing neutron security group function
[SECURITYGROUP]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
Update /etc/neutron/metadata_agent.ini:
# The Neutron user information for accessing the Neutron API.
auth_url = http://172.21.1.11:35357/v2.0
auth_region = RegionOne
admin_tenant_name = service
admin_user = neutron
admin_password = root123
# IP address used by Nova metadata server
nova_metadata_ip = 172.21.1.11
# TCP Port used by Nova metadata server
nova_metadata_port = 8775
metadata_proxy_shared_secret = helloOpenStack
Make sure that your rabbitMQ IP in /etc/neutron/neutron.conf is set to the controller node:
rabbit_host = 172.21.1.11
rabbit_password = root123
auth_strategy = keystone
core_plugin = neutron.plugins.openvswitch.ovs_neutron_plugin.OVSNeutronPluginV2
[database]
connection = mysql://neutronUser:neutronPass@172.21.1.11/neutron

#And update the keystone_authtoken section
[keystone_authtoken]
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = neutron
admin_password = root123
signing_dir = /var/lib/neutron/keystone-signing
Again, the sqlite connection should be disabled.
Edit /etc/sudoers.d/neutron_sudoers to give it full access like this (This is unfortunately mandatory)
nano /etc/sudoers.d/neutron_sudoers
#Modify the neutron user
neutron ALL=NOPASSWD: ALL
Edit /etc/neutron/l3_agent.ini 
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
use_namespaces = True
Edit /etc/neutron/dhcp_agent.ini 
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
use_namespaces = False
dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq

Restart all the services:
cd /etc/init.d/; for i in $( ls neutron-* ); do sudo service $i restart; done
3.4. OpenVSwitch (Part2)
Edit the eth2 in /etc/network/interfaces to become like this:
# VM internet Access
auto eth2
iface eth2 inet manual
up ifconfig $IFACE 0.0.0.0 up
up ip link set $IFACE promisc on
down ip link set $IFACE promisc off
down ifconfig $IFACE down
Add the eth2 to the br-ex:
#Internet connectivity will be lost after this step but this won't affect OpenStack's work
ovs-vsctl add-port br-ex eth2 
#If you want to get internet connection back, you can assign the eth2's IP address to the br-ex in the /etc/network/interfaces file.
4. Compute Node
4.1. Preparing the Node
After you install Ubuntu 12.04 or 13.04 Server 64bits, Go in sudo mode:
sudo su
Add Havana repositories [Only for Ubuntu 12.04]:
apt-get install -y ubuntu-cloud-keyring
echo deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-updates/havana main >> /etc/apt/sources.list.d/havana.list
Update your system:
apt-get update -y
apt-get upgrade -y
apt-get dist-upgrade -y
Reboot (you might have new kernel)
Install ntp service:
apt-get install -y ntp
Configure the NTP server to follow the controller node:
#Comment the ubuntu NTP servers
sed -i 's/server 0.ubuntu.pool.ntp.org/#server 0.ubuntu.pool.ntp.org/g' /etc/ntp.conf
sed -i 's/server 1.ubuntu.pool.ntp.org/#server 1.ubuntu.pool.ntp.org/g' /etc/ntp.conf
sed -i 's/server 2.ubuntu.pool.ntp.org/#server 2.ubuntu.pool.ntp.org/g' /etc/ntp.conf
sed -i 's/server 3.ubuntu.pool.ntp.org/#server 3.ubuntu.pool.ntp.org/g' /etc/ntp.conf
#Set the compute node to follow up your conroller node
sed -i 's/server ntp.ubuntu.com/server 172.21.1.11/g' /etc/ntp.conf
service ntp restart
Install other services:
apt-get install -y vlan bridge-utils
Enable IP_Forwarding:
sed -i 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/' /etc/sysctl.conf
# To save you from rebooting, perform the following
sysctl net.ipv4.ip_forward=1
Edit the /etc/sysctl.conf file
net.ipv4.conf.all.rp_filter=0
net.ipv4.conf.default.rp_filter=0
# sysctl -p
4.2.Networking
Perform the following:
# OpenStack management
auto eth0
iface eth0 inet static
address 172.21.1.101
netmask 255.255.0.0
gateway 172.21.1.0
dns-nameservers 148.147.161.2

# VM Configuration
auto eth1
iface eth1 inet static
address 172.22.1.101
netmask 255.255.0.0
Restart the networking service:
service networking restart (# /etc/init.d/networking restart)
Preferrably reboot the machine J
4.3 KVM
make sure that your hardware enables virtualization:
apt-get install -y cpu-checker
kvm-ok
Normally you would get a good response. Now, move to install kvm and configure it:
apt-get install -y kvm libvirt-bin pm-utils
Edit the cgroup_device_acl array in the /etc/libvirt/qemu.conf file to:
cgroup_device_acl = [
"/dev/null", "/dev/full", "/dev/zero",
"/dev/random", "/dev/urandom",
"/dev/ptmx", "/dev/kvm", "/dev/kqemu",
"/dev/rtc", "/dev/hpet","/dev/net/tun"
]
Delete default virtual bridge
virsh net-destroy default
virsh net-undefine default
Enable live migration by updating /etc/libvirt/libvirtd.conf file:
listen_tls = 0
listen_tcp = 1
auth_tcp = "none"
Edit libvirtd_opts variable in /etc/init/libvirt-bin.conf file:
env libvirtd_opts="-d -l"
Edit /etc/default/libvirt-bin file
libvirtd_opts="-d -l"
Restart the libvirt service and dbus to load the new values:
service dbus restart && service libvirt-bin restart
4.4. OpenVSwitch
Install the openVSwitch:
apt-get install -y openvswitch-switch openvswitch-datapath-dkms
·         Note: If this fails / shows errors do:
o    apt-get install linux-headers-3.2.0-23-generic
o    apt-get install --reinstall -y openvswitch-switch openvswitch-datapath-dkms
Create the bridges:
#br-int will be used for VM integration
ovs-vsctl add-br br-int
4.5. Neutron
Install the Neutron openvswitch agent:
apt-get -y install neutron-plugin-openvswitch-agent
Edit the OVS plugin configuration file /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini with:
#Under the database section
[DATABASE]
sql_connection = mysql://neutronUser:neutronPass@172.21.1.11/neutron

#Under the OVS section
[OVS]
tenant_network_type = gre
tunnel_id_ranges = 1:1000
integration_bridge = br-int
tunnel_bridge = br-tun
local_ip = 172.22.1.101
enable_tunneling = True

#Firewall driver for realizing neutron security group function
[SECURITYGROUP]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
Make sure that your rabbitMQ IP in /etc/neutron/neutron.conf is set to the controller node:
rabbit_host = 172.21.1.11
rabbit_password = root123
auth_strategy = keystone
rpc_backend = neutron.openstack.common.rpc.impl_kombu
core_plugin = neutron.plugins.openvswitch.ovs_neutron_plugin.OVSNeutronPluginV2
[database]
connection = mysql://neutronUser:neutronPass@172.21.1.11/neutron
#And update the keystone_authtoken section
[keystone_authtoken]
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
auth_url = http://172.21.1.11:35357/v2.0
auth_uri = http://172.21.1.11:5000
admin_tenant_name = service
admin_user = neutron
admin_password = root123
signing_dir = /var/lib/neutron/keystone-signing
Edit /etc/neutron/api-paste.ini:
[filter:authtoken]
paste.filter_factory = keystoneclient.middleware.auth_token:filter_factory
auth_host = 172.21.1.11
admin_tenant_name = service
admin_user = neutron
admin_password = root123
Restart all the services:
service neutron-plugin-openvswitch-agent restart
# service openvswitch-switch restart
4.6. Nova
Install nova's required components for the compute node:
apt-get install -y nova-compute-kvm
Now modify authtoken section in the /etc/nova/api-paste.ini file to this:
[filter:authtoken]
paste.filter_factory = keystoneclient.middleware.auth_token:filter_factory
auth_host = 172.21.1.11
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = nova
admin_password = root123
signing_dirname = /tmp/keystone-signing-nova
# Workaround for https://bugs.launchpad.net/nova/+bug/1154809
auth_version = v2.0
·         More information on when to use what in nova-compute.conf and nova.conf
https://bugs.launchpad.net/openstack-manuals/+bug/1064755
Excerpt from bug:
Anne Gentle (annegentle) wrote on 2012-11-30:
#4
File where this text is found is: doc/src/docbkx/openstack-install/compute-minimum-configuration.xml
Best fix for this doc bug is to change the sentence "The hypervisor is set either by editing /etc/nova/nova.conf or referring to nova-compute.conf in the nova.conf file. " to "The hypervisor is set by editing /etc/nova/nova.conf. "
then
adding a Note:
"You can also configure the nova-compute service (and configure a hypervisor-per-compute-node) with a separate nova-compute.conf file and then referring to nova-compute.conf in the nova.conf file."
Edit /etc/nova/nova-compute.conf file
[DEFAULT]
libvirt_type=kvm
libvirt_ovs_bridge=br-int
libvirt_vif_type=ethernet
libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver
libvirt_use_virtio_for_bridges=True

·         Modify the /etc/nova/nova.conf like this:
[DEFAULT]
logdir=/var/log/nova
state_path=/var/lib/nova
lock_path=/run/lock/nova
verbose=True
api_paste_config=/etc/nova/api-paste.ini
compute_scheduler_driver=nova.scheduler.simple.SimpleScheduler
rabbit_host=172.21.1.11
rabbit_password=root123
nova_url=http://172.21.1.11:8774/v1.1/
sql_connection=mysql://novaUser:novaPass@172.21.1.11/nova
root_helper=sudo nova-rootwrap /etc/nova/rootwrap.conf

# Auth
use_deprecated_auth=false
auth_strategy=keystone

# Imaging service
glance_api_servers=172.21.1.11:9292
image_service=nova.image.glance.GlanceImageService

# Vnc configuration
novnc_enabled=true
novncproxy_base_url=http://10.133.43.2:6080/vnc_auto.html
novncproxy_port=6080
vncserver_proxyclient_address=172.21.1.101
vncserver_listen=0.0.0.0

# Network settings
network_api_class=nova.network.neutronv2.api.API
neutron_url=http://172.21.1.11:9696
neutron_auth_strategy=keystone
neutron_admin_tenant_name=service
neutron_admin_username=neutron
neutron_admin_password=root123
neutron_admin_auth_url=http://172.21.1.11:35357/v2.0
libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver
linuxnet_interface_driver=nova.network.linux_net.LinuxOVSInterfaceDriver
#If you want Neutron + Nova Security groups
firewall_driver=nova.virt.firewall.NoopFirewallDriver
security_group_api=neutron
#If you want Nova Security groups only, comment the two lines above and uncomment line -1-.
#-1-firewall_driver=nova.virt.libvirt.firewall.IptablesFirewallDriver

#Metadata
service_neutron_metadata_proxy = True
neutron_metadata_proxy_shared_secret = helloOpenStack

# Compute #
# For KVM use:
compute_driver=libvirt.LibvirtDriver

# Cinder #
volume_api_class=nova.volume.cinder.API
osapi_volume_listen_port=5900
cinder_catalog_info=volume:cinder:internalURL
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
5. Troubleshooting
If VM can’t be pinged,
Add this security rules to make your VMs pingable:
nova --no-cache secgroup-add-rule default icmp -1 -1 0.0.0.0/0
nova --no-cache secgroup-add-rule default tcp 22 22 0.0.0.0/0

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