This guide is meant for building lab environments with a dedicated controller node and a compute node.
You need to have a system with a fresh install of Linux. I recommend you to use ubuntu 16.04 for it has been most tested.
At the first we create two VMs via VirtualBox or other virtualization software. And each of them need the following hardware configuration.
devstack-controller node:
4G RAM + 80G HD
NIC 1# Bridged Adapter
NIC 2# Internal Network
NIC 3# Host-only Adapter
devstack-compute node:
2G RAM + 40G HD
NIC 1# Bridged Adapter
NIC 2# Internal Network
Configure each node with a static IP. For Ubuntu edit /etc/network/interfaces:
# The primary network interface
auto enp0s3
iface enp0s3 inet static
address 192.168.31.10
netmask 255.255.255.0
gateway 192.168.31.1
dns-nameservers 192.168.31.1
auto enp0s8
iface enp0s8 inet manual
auto enp0s9
iface enp0s9 inet manual
Change the NIC's name according to your virtual machine. The above one is for controller node, here is another one for compute:
# The primary network interface
auto enp0s3
iface enp0s3 inet static
address 192.168.31.11
netmask 255.255.255.0
gateway 192.168.31.1
dns-nameservers 192.168.31.1
auto enp0s8
iface enp0s8 inet manual
We only allocate two NICs to compute node as it doesn't connect with external network. Use the command systemctl restart network.service or reboot your linux to renew these configurations.
You will need to replace the ubuntu original apt sources.list with aliyun's or other's so as to speed the apt installation process. After you backup and edit the /etc/apt/sources.list , remeber to run sudo apt update to update your system.
DevStack should be run as a non-root user with sudo enabled, you can create a separate stack user to run DevStack with:
$ sudo useradd -s /bin/bash -d /opt/stack -m stack
Since this user will be making many changes to your system, it should have sudo privileges:
$ echo "stack ALL=(ALL) NOPASSWD: ALL" | sudo tee /etc/sudoers.d/stack
$ sudo su - stack
Use pip command to check if pip have installed properly. If not, use sudo apt install python-pip to install it.
Since we have a slow speed using default pip source, we can change it to douban source. To to this, follow
these steps:
-
make a new directory in stack's home directory:
mkdir ~/.pip -
add a configuration file:
vi ~/.pip/pip.conf
The contents of pip.conf have included in this repo.
$ git clone https://github.com/openstack/devstack -b stable/ocata
$ cd devstack
Download devstack repo through git and use -b to pull a dedicated openstack version branch.
Up to this point all of the steps apply to each node in the cluster. From here on there are some differences between the controller node and the compute node.
The controller node runs all OpenStack services. Configure the controller’s DevStack in local.conf which included in this repo.
The compute node only run the OpenStack worker services. Create a local.conf with contents given in this repo.
$ ./stack.sh
Be care, you should run devstack scripts in controller node first or you will end with some fault.
This will take a 60 - 90 minutes, largely depending on the speed of your internet connection. Many git trees and packages will be installed during this process.
You now have a working DevStack! Congrats!