134 lines
4.3 KiB
ReStructuredText
134 lines
4.3 KiB
ReStructuredText
==========
|
|
All-In-One
|
|
==========
|
|
|
|
Things are about to get real! Using OpenStack in containers or VMs is
|
|
nice for kicking the tires, but doesn't compare to the feeling you get
|
|
with hardware.
|
|
|
|
Prerequisites Linux & Network
|
|
-----------------------------
|
|
|
|
Minimal Install
|
|
~~~~~~~~~~~~~~~
|
|
|
|
You need to have a system with a fresh install of Linux. You can
|
|
download the `Minimal
|
|
CD <https://help.ubuntu.com/community/Installation/MinimalCD>`__ for
|
|
Ubuntu releases since DevStack will download & install all the
|
|
additional dependencies. The netinstall ISO is available for
|
|
`Fedora <http://mirrors.kernel.org/fedora/releases/18/Fedora/x86_64/iso/Fedora-20-x86_64-netinst.iso>`__
|
|
and
|
|
`CentOS/RHEL <http://mirrors.kernel.org/centos/6.5/isos/x86_64/CentOS-6.5-x86_64-netinstall.iso>`__.
|
|
You may be tempted to use a desktop distro on a laptop, it will probably
|
|
work but you may need to tell Network Manager to keep its fingers off
|
|
the interface(s) that OpenStack uses for bridging.
|
|
|
|
Network Configuration
|
|
~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Determine the network configuration on the interface used to integrate
|
|
your OpenStack cloud with your existing network. For example, if the IPs
|
|
given out on your network by DHCP are 192.168.1.X - where X is between
|
|
100 and 200 you will be able to use IPs 201-254 for **floating ips**.
|
|
|
|
To make things easier later change your host to use a static IP instead
|
|
of DHCP (i.e. 192.168.1.201).
|
|
|
|
Installation shake and bake
|
|
---------------------------
|
|
|
|
Add your user
|
|
~~~~~~~~~~~~~
|
|
|
|
We need to add a user to install DevStack. (if you created a user during
|
|
install you can skip this step and just give the user sudo privileges
|
|
below)
|
|
|
|
::
|
|
|
|
adduser stack
|
|
|
|
Since this user will be making many changes to your system, it will need
|
|
to have sudo privileges:
|
|
|
|
::
|
|
|
|
apt-get install sudo -y || yum install -y sudo
|
|
echo "stack ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
|
|
|
|
From here on you should use the user you created. **Logout** and
|
|
**login** as that user.
|
|
|
|
Download DevStack
|
|
~~~~~~~~~~~~~~~~~
|
|
|
|
We'll grab the latest version of DevStack via https:
|
|
|
|
::
|
|
|
|
sudo apt-get install git -y || yum install -y git
|
|
git clone https://git.openstack.org/openstack-dev/devstack
|
|
cd devstack
|
|
|
|
Run DevStack
|
|
~~~~~~~~~~~~
|
|
|
|
Now to configure ``stack.sh``. DevStack includes a sample in
|
|
``devstack/samples/local.conf``. Create ``local.conf`` as shown below to
|
|
do the following:
|
|
|
|
- Set ``FLOATING_RANGE`` to a range not used on the local network, i.e.
|
|
192.168.1.224/27. This configures IP addresses ending in 225-254 to
|
|
be used as floating IPs.
|
|
- Set ``FIXED_RANGE`` and ``FIXED_NETWORK_SIZE`` to configure the
|
|
internal address space used by the instances.
|
|
- Set ``FLAT_INTERFACE`` to the Ethernet interface that connects the
|
|
host to your local network. This is the interface that should be
|
|
configured with the static IP address mentioned above.
|
|
- Set the administrative password. This password is used for the
|
|
**admin** and **demo** accounts set up as OpenStack users.
|
|
- Set the MySQL administrative password. The default here is a random
|
|
hex string which is inconvenient if you need to look at the database
|
|
directly for anything.
|
|
- Set the RabbitMQ password.
|
|
- Set the service password. This is used by the OpenStack services
|
|
(Nova, Glance, etc) to authenticate with Keystone.
|
|
|
|
``local.conf`` should look something like this:
|
|
|
|
::
|
|
|
|
[[local|localrc]]
|
|
FLOATING_RANGE=192.168.1.224/27
|
|
FIXED_RANGE=10.11.12.0/24
|
|
FIXED_NETWORK_SIZE=256
|
|
FLAT_INTERFACE=eth0
|
|
ADMIN_PASSWORD=supersecret
|
|
MYSQL_PASSWORD=iheartdatabases
|
|
RABBIT_PASSWORD=flopsymopsy
|
|
SERVICE_PASSWORD=iheartksl
|
|
|
|
Run DevStack:
|
|
|
|
::
|
|
|
|
./stack.sh
|
|
|
|
A seemingly endless stream of activity ensues. When complete you will
|
|
see a summary of ``stack.sh``'s work, including the relevant URLs,
|
|
accounts and passwords to poke at your shiny new OpenStack.
|
|
|
|
Using OpenStack
|
|
~~~~~~~~~~~~~~~
|
|
|
|
At this point you should be able to access the dashboard from other
|
|
computers on the local network. In this example that would be
|
|
http://192.168.1.201/ for the dashboard (aka Horizon). Launch VMs and if
|
|
you give them floating IPs and security group access those VMs will be
|
|
accessible from other machines on your network.
|
|
|
|
Some examples of using the OpenStack command-line clients ``nova`` and
|
|
``glance`` are in the shakedown scripts in ``devstack/exercises``.
|
|
``exercise.sh`` will run all of those scripts and report on the results.
|