在ubuntu16.04上安装devstack

很关键的一步是在安装的devstack之前，将mysql相关的packages从系统删除

sudo apt-get remove mysql*
rm /etc/mysql/ -rf
rm /var/lib/mysql -rf

Add Stack User

Devstack should be run as a non-root user with sudo enabled (standard logins to cloud images such as “ubuntu” or “cloud-user” are usually fine).

You can quickly 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

Download DevStack

$ git clone https://git.openstack.org/openstack-dev/devstack
$ cd devstack

The devstack repo contains a script that installs OpenStack and templates for configuration files

Create a local.conf

Create a local.conf file with 4 passwords preset at the root of the devstack git repo.

[[local|localrc]]
ADMIN_PASSWORD=secret
DATABASE_PASSWORD=$ADMIN_PASSWORD
RABBIT_PASSWORD=$ADMIN_PASSWORD
SERVICE_PASSWORD=$ADMIN_PASSWORD

This is the minimum required config to get started with DevStack.

Start the install

./stack.sh 

This will take a 15 - 20 minutes, largely depending on the speed of your internet connection. Many git trees and packages will be installed during this process.