OpenStack Xena : Pre-Requirements2021/10/07

This is the exmaple of Cloud Computiong by OpenStack Xena.

Install some services that some components of OpenStack needs for system requirements on here.
This example is based on the emvironment like follows.

        eth0|10.0.0.30 
+-----------+-----------+
|    [ Control Node ]   |
|                       |
|  MariaDB    RabbitMQ  |
|  Memcached            |
+-----------------------+

[1]	Configure NTP to adjusts the date, refer to here.
[2]	Install MariaDB Server, refer to here.
[3]	Configure Openstack Xena repository.

root@dlp:~#

apt -y install software-properties-common

root@dlp:~#

add-apt-repository cloud-archive:xena

root@dlp:~#

apt update

root@dlp:~#

apt -y upgrade

[4]	Install RabbitMQ, Memcached.

root@dlp:~#

apt -y install rabbitmq-server memcached python3-pymysql

# add a user to RabbitMQ

# set any password for [password]

root@dlp:~#

rabbitmqctl add_user openstack password

Creating user "openstack" ...
root@dlp:~#

rabbitmqctl set_permissions openstack ".*" ".*" ".*"

Setting permissions for user "openstack" in vhost "/" ...

root@dlp:~#

vi /etc/mysql/mariadb.conf.d/50-server.cnf

# line 28 : change

bind-address =

0.0.0.0

# line 40 : uncomment and change
# default value 151 is not enough on Openstack Env

max_connections =

500

root@dlp:~#

vi /etc/memcached.conf

# line 35: change

-l

0.0.0.0

root@dlp:~#

systemctl restart mariadb rabbitmq-server memcached

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