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 Installation

  • Controller Node - Quantum Server

    1. Install the Quantum server.

    2. Create database ovs_quantum. See the section on the Core Plugins for the exact details.

    3. Update the Quantum configuration file, /etc/quantum/quantum.conf

      [DEFAULT]
      core_plugin = quantum.plugins.openvswitch.ovs_quantum_plugin.OVSQuantumPluginV2
      control_exchange = quantum
      rabbit_host = controlnode
      notification_driver = quantum.openstack.common.notifier.rabbit_notifier
    4. Update the plugin configuration file, /etc/quantum/plugins/openvswitch/ovs_quantum_plugin.ini:

      [DATABASE]
      sql_connection = mysql://root:root@controlnode:3306/ovs_quantum?charset=utf8
      [OVS]
      tenant_network_type = gre
      tunnel_id_ranges = 1:1000
      enable_tunneling = True
      
    5. Update the api-paste configuration file to include the keystone user, /etc/quantum/api-paste.ini

      [filter:authtoken]
      admin_tenant_name=servicetenant
      admin_user=quantum
      admin_password=servicepassword
    6. Start the Quantum server

      The quantum server can be a service of operating system. The command may be different to start the service on different operating systems. However the command to run the quantum server directly is kind of like:

       sudo quantum-server --config-file /etc/quantum/plugins/openvswitch/ovs_quantum_plugin.ini --config-file /etc/quantum/quantum.conf
                                      
  • Compute Node - Nova compute

    1. Install the Nova compute.

    2. Update the nova configuration file, /etc/nova/nova.conf. Make sure the following is at the end of this file:

      network_api_class=nova.network.quantumv2.api.API
      
      quantum_admin_username=quantum
      quantum_admin_password=servicepassword
      quantum_admin_auth_url=http://controlnode:35357/v2.0/
      quantum_auth_strategy=keystone
      quantum_admin_tenant_name=servicetenant
      quantum_url=http://controlnode:9696/
      
      libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver
    3. Restart the nova service

  • Compute and Network Node - L2 Agent

    1. Install the L2 agent.

    2. Add the integration bridge to the Open vSwitch

      sudo ovs-vsctl add-br br-int
    3. Update the Quantum configuration file, /etc/quantum/quantum.conf

      [DEFAULT]
      core_plugin = quantum.plugins.openvswitch.ovs_quantum_plugin.OVSQuantumPluginV2
      control_exchange = quantum
      rabbit_host = controlnode
      notification_driver = quantum.openstack.common.notifier.rabbit_notifier
    4. Update the plugin configuration file, /etc/quantum/plugins/openvswitch/ovs_quantum_plugin.ini.

      Compute Node:

      [DATABASE]
      sql_connection = mysql://root:root@controlnode:3306/ovs_quantum?charset=utf8
      [OVS]
      tenant_network_type = gre
      tunnel_id_ranges = 1:1000
      enable_tunneling = True
      local_ip = 9.181.89.202

      Network Node:

      [DATABASE]
      sql_connection = mysql://root:root@controlnode:3306/ovs_quantum?charset=utf8
      [OVS]
      tenant_network_type = gre
      tunnel_id_ranges = 1:1000
      enable_tunneling = True
      local_ip = 9.181.89.203
    5. Create the integration bridge br-int:

      sudo ovs-vsctl --may-exist add-br br-int
      
    6. Start the Quantum L2 agent

      The quantum Open vSwitch L2 agent can be a service of operating system. The command may be different to start the service on different operating systems. However the command to run it directly is kind of like:

      sudo quantum-openvswitch-agent --config-file /etc/quantum/plugins/openvswitch/ovs_quantum_plugin.ini --config-file /etc/quantum/quantum.conf
                                      
  • Network Node - DHCP Agent

    1. Install the DHCP agent.

    2. Update the Quantum configuration file, /etc/quantum/quantum.conf

      [DEFAULT]
      core_plugin = quantum.plugins.openvswitch.ovs_quantum_plugin.OVSQuantumPluginV2
      control_exchange = quantum
      rabbit_host = controlnode
      notification_driver = quantum.openstack.common.notifier.rabbit_notifier
      allow_overlapping_ips = True

      We set allow_overlapping_ips because we have overlapping subnets for TenantA and TenantC.

    3. Update the DHCP configuration file /etc/quantum/dhcp_agent.ini

      interface_driver = quantum.agent.linux.interface.OVSInterfaceDriver
    4. Start the DHCP agent

      The quantum DHCP agent can be a service of operating system. The command may be different to start the service on different operating systems. However the command to run it directly is kind of like:

      sudo quantum-dhcp-agent --config-file /etc/quantum/quantum.conf --config-file /etc/quantum/dhcp_agent.ini
                                      
  • Network Node - L3 Agent

    1. Install the L3 agent.

    2. Add the external network bridge

      sudo ovs-vsctl add-br br-ex
    3. Add the physical interface, for example eth0, that is connected to the outside network to this bridge

      sudo ovs-vsctl add-port br-ex eth0
    4. Update the L3 configuration file /etc/quantum/l3_agent.ini:

      [DEFAULT]
      interface_driver=quantum.agent.linux.interface.OVSInterfaceDriver
      use_namespaces=True

      We set use_namespaces (It is True by default.) because we have overlapping subnets for TenantA and TenantC and we are going to host the routers with one l3 agent network node.

    5. Start the L3 agent

      The quantum L3 agent can be a service of operating system. The command may be different to start the service on different operating systems. However the command to run it directly is kind of like:

      sudo quantum-l3-agent --config-file /etc/quantum/quantum.conf --config-file /etc/quantum/l3_agent.ini
                                      



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