Openstack Liberty

Thought to give time for Openstack Latest version Liberty:

Here it goes,

First good thing is minimum node requirement is just 2, Compute and Controller no neutron :), So let's boot up two machines and begin.

For controller I used vm with 8GB ram and 100GB storage and 16 for compute, both running CentOS 7.

It's all easy for centos 

yum install centos-release-openstack-liberty

yum install python-openstackclient

yum install openstack-selinux

of course for local setup ntpd  

yum install ntpd

systemctl ntpd start

systemctl enable ntpd

Next is for controller SQL 

yum install mariadb mariadb-server python2-PyMySQL

Here I faced issues with mariadb Aria engine, To begin with error was:

151109 11:02:22 [ERROR] mysqld: Aria engine: log initialization failed

151109 11:02:22 [ERROR] Plugin 'Aria' init function returned error.

151109 11:02:22 [ERROR] Plugin 'Aria' registration as a STORAGE ENGINE failed.

151109 11:02:22 [Note] Plugin 'FEEDBACK' is disabled.

151109 11:02:22 [ERROR] mysqld: Can't find file: './mysql/plugin.frm' (errno: 13)

151109 11:02:22 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.

151109 11:02:22 [ERROR] Aria engine is not enabled or did not start. The Aria engine must be enabled to continue as mysqld was configured with --with-aria-tmp-tables

151109 11:02:22 [ERROR] Aborting

Solution I found was

Modify /etc/my.cnf.d/server.cnf  to include following lines:

[mysqld]

bind-address = a.b.c.d

default-storage-engine = innodb

innodb_file_per_table

collation-server = utf8_general_ci

init-connect = 'SET NAMES utf8'

character-set-server = utf8

Then Delete everything in /var/lib/mysql

mysql_install_db  --user=mysql --data=/var/lib/mysql --basedir=/usr

Now check again and it’s working this time

systemctl restart mariadb.service

cat /var/log/mariadb/mariadb.log

Version: '5.5.44-MariaDB'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  MariaDB Server

Make sure to eanable mariadb service

# systemctl enable mariadb.service

Next one was NoSQL Mongo DB

yum install mongodb-server mongodb

# systemctl enable mongod.service

# systemctl start mongod.service

Next RabbitMQ

yum install rabbitmq-server

systemctl enable rabbitmq-server.service

systemctl start rabbitmq-server.service

Once basic things are done it’s all about specific services Keystone, Compute, Neutron and Horizon

Issue in Keystone:

No oslo configured

[root@liberty_ctrl ~]# su -s /bin/sh -c "keystone-manage db_sync" keystone

No handlers could be found for logger "oslo_config.cfg"

For now I just removed log setting verbose to false,

Later on it turns out it didn’t make complete job

Reason being MySQL user keystone was not able to login via FQDN, hence added that entry manually

Also it didn’t work of using default token as ‘ADMIN_TOKEN’ had to be hexadecimal value of required length

Only issue I found on documentation is it uses controller keyword many times which needs to be replaced with correct hostname

Other issues:

    Issue #1: Since removal of setup command from CentOS 7 how to set hostname?

                   Here is new command: "hostnamectl set-hostname liberty_ctrl"

    Issue #2: I missed to allocate size correctly at beginning:

                   Here are steps to I used to increase partition:

                   parted -a optimal /dev/sdb -- mkpart primary 68.7GB 100%

                   parted /dev/sdb -- toggle 2 lvm

                 

                   vgextend vg1 /dev/sdb2

                   lvextend /dev/vg1/root -l +100%FREE

             

               

                  resize2fs /dev/vg1/root