CentOS 7
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OpenStack Juno : Pre-requirements2015/01/08
 
This is the example of Cloud Computiong by OpenStack.
On this example, Install and configure Keystone, Glance, Nova, Horizon on a server as All-in-One. For other componets, refer to the precondition of the section.
Install some services which some components of OpenStack needs forst on here.
[1]
Install NTP Server like here and adjusts the date and time.
[2]
Install KVM HyperVisor like here.
It's unnecessarry to set Bridge networking manually, though. ( OpenStack system sets Bridge networking )
[3] Add the repository of Openstack Juno and Update the system.
[root@dlp ~]#
yum -y install http://repos.fedorapeople.org/repos/openstack/openstack-juno/rdo-release-juno.rpm

[root@dlp ~]#
sed -i -e "s/enabled=1/enabled=0/g" /etc/yum.repos.d/rdo-release.repo

[4] Install MariaDB Server for backend database.
# install from RDO, EPEL

[root@dlp ~]#
yum --enablerepo=openstack-juno,epel -y install galera mariadb-galera-server
[root@dlp ~]#
systemctl start mariadb

[root@dlp ~]#
systemctl enable mariadb

[root@www ~]#
mysql_secure_installation 

/usr/bin/mysql_secure_installation: line 379: find_mysql_client: command not found

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.
# set root password

Set root password? [Y/n]
y

New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
 ... Success!

By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.
# remove anonymous users

Remove anonymous users? [Y/n]
y

 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.
# disallow root login remotely

Disallow root login remotely? [Y/n]
y

 ... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.
# remove test database

Remove test database and access to it? [Y/n]
y

 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
# reload privilege tables

Reload privilege tables now? [Y/n]
y

 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!
[5] Install RabbitMQ, Memcached.
# install from EPEL

[root@dlp ~]#
yum --enablerepo=epel -y install rabbitmq-server memcached
[root@dlp ~]#
systemctl start rabbitmq-server

[root@dlp ~]#
systemctl enable rabbitmq-server

# change guest's password

[root@dlp ~]#
rabbitmqctl change_password guest password

Changing password for user "guest" ...
...done.
[root@dlp ~]#
systemctl start memcached

[root@dlp ~]#
systemctl enable memcached

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