Openstack Icehouse Part 5 : Configuring EXTERNAL NETWORK

To create the external network on controller

source /root/admin-openrc.sh

neutron net-create ext-net --shared --router:external=True

To create a subnet on the external network

neutron subnet-create ext-net --name ext-subnet --allocation-pool start=192.168.255.160,end=192.168.255.180 --disable-dhcp --gateway 192.168.255.2 ext_net 192.168.255.0/24
#To create the tenant network

source /root/demo-openrc.sh

#Create the network:

neutron net-create demo-net

#To create a subnet on the tenant network

neutron subnet-create demo-net --name demo-subnet --gateway 10.0.0.1 10.0.0.0/24

#Create the router:

neutron router-create demo-router

#Attach the router to the demo tenant subnet:

neutron router-interface-add demo-router demo-subnet

#Added interface b1a894fd-aee8-475c-9262-4342afdc1b58 to router demo-router.

neutron router-gateway-set demo-router ext-net

#Set gateway for router demo-router

 

Now check whether the gateway of the external-network here it will be 192.168.255.160 which is first Ip of the range. Try pinging to the IP and if its not working Stop there and remove all the routers and gateway and redo it using the ID.  If the gate way Don't get pinged the instance won't be able to access outside the network.

 

Set the neutron router-interface-add  and neutron router-gateway-set  BY ID

neutron router-list

+--------------------------------------+-------------+--------------------------------------------------------+

| id                                   | name        | external_gateway_info                                  |

+--------------------------------------+-------------+--------------------------------------------------------+

| 020f48d9-182e-4e33-a73f-813333533092 | router-demo | {"network_id": "9a457578-8f85-486b-9cd0-f7f04922ba0c"} |

+--------------------------------------+-------------+--------------------------------------------------------+

# neutron net-list

+--------------------------------------+----------+----------------------------------------------------+

| id                                   | name     | subnets                                            |

+--------------------------------------+----------+----------------------------------------------------+

| 07e10f48-0637-46bb-a444-695646e6bd15 | net-demo | c042e65e-3892-45bc-aeb0-625ce5f4aaaf 50.50.1.0/24  |

| 9a457578-8f85-486b-9cd0-f7f04922ba0c | ext_net  | 0bcccf59-be17-48c7-8032-e00fd4f15b46 1.2.3.0/24 |

+--------------------------------------+----------+----------------------------------------------------+

#neutron router-gateway-set 020f48d9-182e-4e33-a73f-813333533092 9a457578-8f85-486b-9cd0-f7f04922ba0c

Openstack Icehouse Part 4 Neutron

OpenStack Networking (neutron) Configure controller node

$ mysql -u root -p
CREATE DATABASE neutron;
GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'localhost' IDENTIFIED BY 'neutron4mar';
GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'%' IDENTIFIED BY 'neutron4mar';
exit

keystone user-create --name neutron --pass neutron4mar --email neutron@example.com
keystone user-role-add --user neutron --tenant service --role admin
keystone service-create --name neutron --type network --description "OpenStack Networking"
keystone endpoint-create --service-id $(keystone service-list | awk '/ network / {print $2}') --publicurl http://controller:9696 --adminurl http://controller:9696 --internalurl http://controller:9696

To install the Networking components

# yum -y install openstack-neutron openstack-neutron-ml2 python-neutronclient

openstack-config --set /etc/neutron/neutron.conf database connection mysql://neutron:neutron4mar@controller/neutron

openstack-config --set /etc/neutron/neutron.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_uri http://controller:5000
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_host controller
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_protocol http
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_port 35357
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_tenant_name service
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_user neutron
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_password neutron4mar

openstack-config --set /etc/neutron/neutron.conf DEFAULT rpc_backend neutron.openstack.common.rpc.impl_qpid
openstack-config --set /etc/neutron/neutron.conf DEFAULT qpid_hostname controller
openstack-config --set /etc/neutron/neutron.conf DEFAULT notify_nova_on_port_status_changes True
openstack-config --set /etc/neutron/neutron.conf DEFAULT notify_nova_on_port_data_changes True
openstack-config --set /etc/neutron/neutron.conf DEFAULT nova_url http://controller:8774/v2
openstack-config --set /etc/neutron/neutron.conf DEFAULT nova_admin_username nova
openstack-config --set /etc/neutron/neutron.conf DEFAULT nova_admin_tenant_id $(keystone tenant-list | awk '/ service / { print $2 }')
openstack-config --set /etc/neutron/neutron.conf DEFAULT nova_admin_password nova4mar
openstack-config --set /etc/neutron/neutron.conf DEFAULT nova_admin_auth_url http://controller:35357/v2.0

openstack-config --set /etc/neutron/neutron.conf DEFAULT core_plugin ml2
openstack-config --set /etc/neutron/neutron.conf DEFAULT service_plugins router

openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 type_drivers gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 tenant_network_types gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 mechanism_drivers openvswitch
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2_type_gre tunnel_id_ranges 1:1000
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup firewall_driver neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup enable_security_group True

openstack-config --set /etc/nova/nova.conf DEFAULT network_api_class nova.network.neutronv2.api.API
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_url http://controller:9696
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_auth_strategy keystone
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_tenant_name service
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_username neutron
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_password neutron4mar
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_auth_url http://controller:35357/v2.0
openstack-config --set /etc/nova/nova.conf DEFAULT linuxnet_interface_driver nova.network.linux_net.LinuxOVSInterfaceDriver
openstack-config --set /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
openstack-config --set /etc/nova/nova.conf DEFAULT security_group_api neutron

ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini

service openstack-nova-api restart
service openstack-nova-scheduler restart
service openstack-nova-conductor restart

service neutron-server start
chkconfig neutron-server on

Neutron ON NETWORK NODE

Edit /etc/sysctl.conf to contain the following:
net.ipv4.ip_forward=1
net.ipv4.conf.all.rp_filter=0
net.ipv4.conf.default.rp_filter=0
Implement the changes:
sysctl -p

yum -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch

openstack-config --set /etc/neutron/neutron.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_uri http://controller:5000
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_host controller
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_protocol http
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_port 35357
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_tenant_name service
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_user neutron
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_password neutron4mar

openstack-config --set /etc/neutron/neutron.conf DEFAULT rpc_backend neutron.openstack.common.rpc.impl_qpid
openstack-config --set /etc/neutron/neutron.conf DEFAULT qpid_hostname controller

openstack-config --set /etc/neutron/neutron.conf DEFAULT core_plugin ml2
openstack-config --set /etc/neutron/neutron.conf DEFAULT service_plugins router

verbose = True to the [DEFAULT] section in /etc/neutron/neutron.conf to assist with troubleshooting.
Comment out any lines in the [service_providers] section.

openstack-config --set /etc/neutron/l3_agent.ini DEFAULT interface_driver neutron.agent.linux.interface.OVSInterfaceDriver
openstack-config --set /etc/neutron/l3_agent.ini DEFAULT use_namespaces True

We recommend adding verbose = True to the [DEFAULT] section in /etc/neutron/l3_agent.ini to assist with troubleshooting.
openstack-config --set /etc/neutron/dhcp_agent.ini DEFAULT interface_driver neutron.agent.linux.interface.OVSInterfaceDriver
openstack-config --set /etc/neutron/dhcp_agent.ini DEFAULT dhcp_driver neutron.agent.linux.dhcp.Dnsmasq
openstack-config --set /etc/neutron/dhcp_agent.ini DEFAULT use_namespaces True

openstack-config --set /etc/neutron/metadata_agent.ini DEFAULT auth_url http://controller:5000/v2.0
openstack-config --set /etc/neutron/metadata_agent.ini DEFAULT auth_region regionOne
openstack-config --set /etc/neutron/metadata_agent.ini DEFAULT admin_tenant_name service
openstack-config --set /etc/neutron/metadata_agent.ini DEFAULT admin_user neutron
openstack-config --set /etc/neutron/metadata_agent.ini DEFAULT admin_password neutron4mar
openstack-config --set /etc/neutron/metadata_agent.ini DEFAULT nova_metadata_ip controller
openstack-config --set /etc/neutron/metadata_agent.ini DEFAULT metadata_proxy_shared_secret meta4mar

We recommend adding verbose = True to the [DEFAULT] section in /etc/neutron/metadata_agent.ini to assist with troubleshooting.

Perform the next two steps on the controller node.
On the controller node, configure Compute to use the metadata service:
Replace METADATA_SECRET with the secret you chose for the metadata proxy.
openstack-config --set /etc/nova/nova.conf DEFAULT service_neutron_metadata_proxy true
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_metadata_proxy_shared_secret meta4mar
#On the controller node, restart the Compute API service:
service openstack-nova-api restart
To configure the Modular Layer 2 (ML2) plug-in

Replace INSTANCE_TUNNELS_INTERFACE_IP_ADDRESS with the IP address of the instance tunnels network interface on your network node. 

openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 type_drivers gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 tenant_network_types gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 mechanism_drivers openvswitch
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2_type_gre tunnel_id_ranges 1:1000
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ovs local_ip 192.168.216.151
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ovs tunnel_type gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ovs enable_tunneling True
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup firewall_driver neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup enable_security_group True

service openvswitch start
chkconfig openvswitch on
#Add the integration bridge:
ovs-vsctl add-br br-int
#Add the external bridge:
ovs-vsctl add-br br-ex
#Add a port to the external bridge that connects to the physical external network interface:
#Replace INTERFACE_NAME with the actual interface name. For example, eth2 or ens256.
ovs-vsctl add-port br-ex eth4

Depending on your network interface driver, you may need to disable Generic Receive Offload (GRO) to achieve suitable throughput between your instances and the external network.
To temporarily disable GRO on the external network interface while testing your environment:
# ethtool -K INTERFACE_NAME gro off

 

ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini
cp /etc/init.d/neutron-openvswitch-agent /etc/init.d/neutron-openvswitch-agent.orig
sed -i 's,plugins/openvswitch/ovs_neutron_plugin.ini,plugin.ini,g' /etc/init.d/neutron-openvswitch-agent
service neutron-openvswitch-agent start
service neutron-l3-agent start
service neutron-dhcp-agent start
service neutron-metadata-agent start
chkconfig neutron-openvswitch-agent on
chkconfig neutron-l3-agent on
chkconfig neutron-dhcp-agent on
chkconfig neutron-metadata-agent on

Neutron Configure compute node

Edit /etc/sysctl.conf to contain the following:
net.ipv4.conf.all.rp_filter=0
net.ipv4.conf.default.rp_filter=0
Implement the changes:
# sysctl -p

To install the Networking components

yum -y install openstack-neutron-ml2 openstack-neutron-openvswitch

Replace NEUTRON_PASS with the password you chose for the neutron user in the Identity service.

openstack-config --set /etc/neutron/neutron.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_uri http://controller:5000
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_host controller
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_protocol http
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_port 35357
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_tenant_name service
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_user neutron
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_password neutron4mar

openstack-config --set /etc/neutron/neutron.conf DEFAULT rpc_backend neutron.openstack.common.rpc.impl_qpid
openstack-config --set /etc/neutron/neutron.conf DEFAULT qpid_hostname controller

openstack-config --set /etc/neutron/neutron.conf DEFAULT core_plugin ml2
openstack-config --set /etc/neutron/neutron.conf DEFAULT service_plugins router

Replace INSTANCE_TUNNELS_INTERFACE_IP_ADDRESS with the IP address of the instance tunnels network interface on your compute node. This guide uses 10.0.1.31 for the IP address of the instance tunnels network interface on the first compute node.

openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 type_drivers gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 tenant_network_types gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 mechanism_drivers openvswitch
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2_type_gre tunnel_id_ranges 1:1000
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ovs local_ip 192.168.216.141
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ovs tunnel_type gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ovs enable_tunneling True
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup firewall_driver neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup enable_security_group True
service openvswitch start
chkconfig openvswitch on

#Add the integration bridge:

ovs-vsctl add-br br-int

Replace NEUTRON_PASS with the password you chose for the neutron user in the Identity service.

openstack-config --set /etc/nova/nova.conf DEFAULT network_api_class nova.network.neutronv2.api.API
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_url http://controller:9696
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_auth_strategy keystone
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_tenant_name service
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_username neutron
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_password neutron4mar
openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_auth_url http://controller:35357/v2.0
openstack-config --set /etc/nova/nova.conf DEFAULT linuxnet_interface_driver nova.network.linux_net.LinuxOVSInterfaceDriver
openstack-config --set /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
openstack-config --set /etc/nova/nova.conf DEFAULT security_group_api neutron

ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini
#Due to a packaging bug, the Open vSwitch agent initialization script explicitly looks for the Open vSwitch plug-in configuration file rather than a symbolic link /etc/neutron/plugin.ini pointing to the ML2 plug-in configuration file. Run the following commands to resolve this issue:

cp /etc/init.d/neutron-openvswitch-agent /etc/init.d/neutron-openvswitch-agent.orig
sed -i 's,plugins/openvswitch/ovs_neutron_plugin.ini,plugin.ini,g' /etc/init.d/neutron-openvswitch-agent
#Restart the Compute service:

service openstack-nova-compute restart
#Start the Open vSwitch (OVS) agent and configure it to start when the system boots:
service neutron-openvswitch-agent start
chkconfig neutron-openvswitch-agent on

Openstack Icehouse Part 3 NOVA

COMPUTE SERVER CONFIGURATION On Controller

yum -y install openstack-nova-api openstack-nova-cert openstack-nova-conductor openstack-nova-console openstack-nova-novncproxy openstack-nova-scheduler python-novaclient

openstack-config --set /etc/nova/nova.conf database connection mysql://nova:nova4mar@controller/nova
openstack-config --set /etc/nova/nova.conf DEFAULT rpc_backend qpid
openstack-config --set /etc/nova/nova.conf DEFAULT qpid_hostname controller

openstack-config --set /etc/nova/nova.conf DEFAULT my_ip 192.168.216.130
openstack-config --set /etc/nova/nova.conf DEFAULT vncserver_listen 192.168.216.130
openstack-config --set /etc/nova/nova.conf DEFAULT vncserver_proxyclient_address 192.168.216.130

mysql -u root -p
CREATE DATABASE nova;
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'nova4mar';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'nova4mar';
exit

#Create the Compute service tables:

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



keystone user-create --name=nova --pass=nova4mar --email=nova@example.com
keystone user-role-add --user=nova --tenant=service --role=admin

openstack-config --set /etc/nova/nova.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_uri http://controller:5000
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_host controller
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_protocol http
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_port 35357
openstack-config --set /etc/nova/nova.conf keystone_authtoken admin_user nova
openstack-config --set /etc/nova/nova.conf keystone_authtoken admin_tenant_name service
openstack-config --set /etc/nova/nova.conf keystone_authtoken admin_password nova4mar
keystone service-create --name=nova --type=compute --description="OpenStack Compute"
keystone endpoint-create --service-id=$(keystone service-list | awk '/ compute / {print $2}') --publicurl=http://controller:8774/v2/%\(tenant_id\)s --internalurl=http://controller:8774/v2/%\(tenant_id\)s --adminurl=http://controller:8774/v2/%\(tenant_id\)s

service openstack-nova-api start
service openstack-nova-cert start
service openstack-nova-consoleauth start
service openstack-nova-scheduler start
service openstack-nova-conductor start
service openstack-nova-novncproxy start
chkconfig openstack-nova-api on
chkconfig openstack-nova-cert on
chkconfig openstack-nova-consoleauth on
chkconfig openstack-nova-scheduler on
chkconfig openstack-nova-conductor on
chkconfig openstack-nova-novncproxy on

nova image-list



Add a rule to the default Nova Security Group to allow SSH access and Ping to instances:
nova secgroup-add-rule default tcp 22 22 0.0.0.0/0
nova secgroup-add-rule default icmp -1 -1 0.0.0.0/0

NOVA ON COMPUTE NODE

Install the Compute packages:

yum -y install openstack-nova-compute

Edit the /etc/nova/nova.conf configuration file:

openstack-config --set /etc/nova/nova.conf database connection mysql://nova:NOVA_DBPASS@controller/nova
openstack-config --set /etc/nova/nova.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_uri http://controller:5000
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_host controller
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_protocol http
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_port 35357
openstack-config --set /etc/nova/nova.conf keystone_authtoken admin_user nova
openstack-config --set /etc/nova/nova.conf keystone_authtoken admin_tenant_name service
openstack-config --set /etc/nova/nova.conf keystone_authtoken admin_password nova4mar

openstack-config --set /etc/nova/nova.conf DEFAULT rpc_backend qpid
openstack-config --set /etc/nova/nova.conf DEFAULT qpid_hostname controller

#Configure Compute to provide remote console access to instances.

openstack-config --set /etc/nova/nova.conf DEFAULT my_ip 192.168.216.140
openstack-config --set /etc/nova/nova.conf DEFAULT vnc_enabled True
openstack-config --set /etc/nova/nova.conf DEFAULT vncserver_listen 0.0.0.0
openstack-config --set /etc/nova/nova.conf DEFAULT vncserver_proxyclient_address 192.168.216.140
openstack-config --set /etc/nova/nova.conf DEFAULT novncproxy_base_url http://controller:6080/vnc_auto.html

#Specify the host that runs the Image Service.

openstack-config --set /etc/nova/nova.conf DEFAULT glance_host controller

#You must determine whether your system's processor and/or hypervisor support hardware acceleration for virtual machines.

Run the following command:
$ egrep -c '(vmx|svm)' /proc/cpuinfo
If this command returns a value of one or greater, your system supports hardware acceleration which typically requires no additional configuration.
If this command returns a value of zero, your system does not support hardware acceleration and you must configure libvirt to use QEMU instead of KVM.
Run the following command:
# openstack-config --set /etc/nova/nova.conf libvirt virt_type qemu
Start the Compute service and configure it to start when the system boots:

service libvirtd start
service messagebus start
chkconfig libvirtd on
chkconfig messagebus on
service openstack-nova-compute start
chkconfig openstack-nova-compute on