Server Preparation
- Install Ubuntu 14.04 LTS in two servers (OpenStack Control node and Compute node respectively)
- While installing, Ubuntu mandates creation of a User, we created the user "stack"(We will use the same user for running devstack) NOTE: You can also have multiple Compute nodes. TIP: Please do minimal Install to avoid any issues in devstack bringup
User Settings - Login to both servers - Disable Ubuntu Firewall
sudo ufw disable
- Optionally install these packages
sudo apt-get install net-tools
- Edit sudo vim /etc/sudoers and add an entry as follows
stack ALL=(ALL) NOPASSWD: ALL
Network Settings - Checked the output of ifconfig -a, two interfaces were listed eth0 and eth1 as indicated in the image above. - We had connected eth0 interface to the Network where ODL Controller is reachable. - eth1 interface in both servers were connected to a different network to act as data plane for the VM’s created using the OpenStack. - Manually edited the file : sudo vim /etc/network/interfaces and made entries as follows
stack@ubuntu-devstack:~/devstack$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loop-back network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address <IP_ADDRESS_TO_REACH_ODL>
netmask <NET_MASK>
broadcast <BROADCAST_IP_ADDRESS>
gateway <GATEWAY_IP_ADDRESS>
auto eth1
iface eth1 inet static
address <IP_ADDRESS_UNIQ>
netmask <NETMASK>![[Note]](../common/images/admon/note.png) | Note |
|---|---|
Please ensure that the eth0 interface is the default route and it is able to reach the ODL_IP_ADDRESS NOTE: The entries for eth1 are not mandatory, If not set, we may have to manually do "ifup eth1" after the stacking is complete to activate the interface |
Finalize - reboot both nodes after the user and network settings to have the network settings applied to the network - Login again and check the output of ifconfig to ensure that both interfaces are listed
