openstack-manuals/doc/install-guide-rst/source/basics-packages.rst

OpenStack service dependencies

OpenStack packages

Distributions release OpenStack packages as part of the distribution or using other methods because of differing release schedules. Perform these procedures on all nodes.

Note

Disable or remove any automatic update services because they can impact your OpenStack environment.

ubuntu

To enable the OpenStack repository

• Install the Ubuntu Cloud archive keyring and repository:

  # apt-get install ubuntu-cloud-keyring
  # echo "deb http://ubuntu-cloud.archive.canonical.com/ubuntu" \
    "trusty-updates/kilo main" > /etc/apt/sources.list.d/ \
    cloudarchive-kilo.list

rdo

To configure prerequisites

1. On RHEL and CentOS, enable the EPEL repository:

   # yum install http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm

   Note

   Fedora does not require this repository.

2. On RHEL, enable additional repositories using the subscription manager:

   # subscription-manager repos --enable=rhel-7-server-optional-rpms
   # subscription-manager repos --enable=rhel-7-server-extras-rpms

   Note

   CentOS and Fedora do not require these repositories.

rdo

To enable the OpenStack repository

• Install the rdo-release-kilo package to enable the RDO repository:

  # yum install http://rdo.fedorapeople.org/openstack-kilo/rdo-release-kilo.rpm

obs

To enable the OpenStack repository

• Enable the Open Build Service repositories based on your openSUSE or SLES version:

  On openSUSE 13.2:

  # zypper addrepo -f obs://Cloud:OpenStack:Kilo/openSUSE_13.2 Kilo

  The openSUSE distribution uses the concept of patterns to represent collections of packages. If you selected 'Minimal Server Selection (Text Mode)' during the initial installation, you may be presented with a dependency conflict when you attempt to install the OpenStack packages. To avoid this, remove the minimal_base-conflicts package:

  # zypper rm patterns-openSUSE-minimal_base-conflicts

  On SLES 12:

  # zypper addrepo -f obs://Cloud:OpenStack:Kilo/SLE_12 Kilo

  Note

  The packages are signed by GPG key 893A90DAD85F9316. You should verify the fingerprint of the imported GPG key before using it.

  Key ID: 893A90DAD85F9316
  Key Name: Cloud:OpenStack OBS Project <Cloud:OpenStack@build.opensuse.org>
  Key Fingerprint: 35B34E18ABC1076D66D5A86B893A90DAD85F9316
  Key Created: Tue Oct  8 13:34:21 2013
  Key Expires: Thu Dec 17 13:34:21 2015

debian

** To use the Debian Wheezy backports archive for Juno**

The Juno release is available only in Debian Experimental (otherwise called rc-buggy), as Jessie is frozen soon, and will contain Icehouse. However, the Debian maintainers of OpenStack also maintain a non-official Debian repository for OpenStack containing Wheezy backports.

1. On all nodes, install the Debian Wheezy backport repository Juno:

   # echo "deb http://archive.gplhost.com/debian juno-backports main" \
     >>/etc/apt/sources.list

2. Install the Debian Wheezy OpenStack repository for Juno:

   # echo "deb http://archive.gplhost.com/debian juno-backports main" \
     >>/etc/apt/sources.list

3. Update the repository database and install the key:

   $ apt-get update && apt-get install gplhost-archive-keyring

4. Update the package database, upgrade your system, and reboot for all changes to take effect:

   $ apt-get update && apt-get dist-upgrade
   $ reboot

Numerous archive.gplhost.com mirrors are available around the world. All are available with both FTP and HTTP protocols (you should use the closest mirror). The list of mirrors is available at http://archive.gplhost.com/readme.mirrors .

Manually install python-argparse

The Debian OpenStack packages are maintained on Debian Sid (also known as Debian Unstable) - the current development version. Backported packages run correctly on Debian Wheezy with one caveat:

All OpenStack packages are written in Python. All packages support version 2.7; porting to Python version 3 is ongoing. Note that Debian Wheezy uses Python 2.6 and 2.7, with Python 2.7 as the default interpreter; Sid has only Python 2.7. There is one packaging change between these two. In Python 2.6, you installed the python-argparse package separately. In Python 2.7, this package is installed by default. Unfortunately, in Python 2.7, this package does not include Provides: python-argparse directive.

1. Because the packages are maintained in Sid where the Provides: python-argparse directive causes an error, and the Debian OpenStack maintainer wants to maintain one version of the OpenStack packages, you must manually install the python-argparse on each OpenStack system that runs Debian Wheezy before you install the other OpenStack packages. Use the following command to install the package:

   # apt-get install python-argparse

   This caveat applies to most OpenStack packages in Wheezy.

To finalize the installation

ubuntu or debian

• Upgrade the packages on your system:

  $ apt-get update && apt-get dist-upgrade

Note

If the upgrade process includes a new kernel, reboot your system to activate it.

rdo

1. Upgrade the packages on your system:

   # yum upgrade

   Note

   If the upgrade process includes a new kernel, reboot your system to activate it.

obs

• Upgrade the packages on your system:

  $ zypper refresh && zypper dist-upgrade

  Note

  If the upgrade process includes a new kernel, reboot your system to activate it.

rdo

2. RHEL and CentOS enable SELinux by default. Install the openstack-selinux package to automatically manage security policies for OpenStack services:

   # yum install openstack-selinux

   Note

   Fedora does not require this package.

   Note

   The installation process for this package can take a while.

SQL database

Most OpenStack services use an SQL database to store information. The database typically runs on the controller node. The procedures in this guide use MariaDB or MySQL depending on the distribution. OpenStack services also support other SQL databases including PostgreSQL.

To install and configure the database server

1. Install the packages:

   rdo or ubuntu or obs

   Note

   The Python MySQL library is compatible with MariaDB.

   ubuntu

   # apt-get install mariadb-server python-mysqldb

   debian

   # apt-get install mysql-server python-mysqldb

   rdo

   # yum install mariadb mariadb-server MySQL-python

   obs

   # zypper install mariadb-client mariadb python-mysql

ubuntu or debian

2. Choose a suitable password for the database root account.
3. Create and edit the /etc/mysql/conf.d/mysqld_openstack.cnf file and complete the following actions:

   • In the [mysqld] section, set the bind-address key to the management IP address of the controller node to enable access by other nodes via the management network:

     [mysqld]
     ...
     bind-address = 10.0.0.11

   • In the [mysqld] section, set the following keys to enable useful options and the UTF-8 character set:

     [mysqld]
     ...
     default-storage-engine = innodb
     innodb_file_per_table
     collation-server = utf8_general_ci
     init-connect = 'SET NAMES utf8'
     character-set-server = utf8

obs or rdo

2. Create and edit the /etc/my.cnf.d/mariadb_openstack.cnf file and complete the following actions:

   • In the [mysqld] section, set the bind-address key to the management IP address of the controller node to enable access by other nodes via the management network:

     [mysqld]
     ...
     bind-address = 10.0.0.11

   • In the [mysqld] section, set the following keys to enable useful options and the UTF-8 character set:

     [mysqld]
     ...
     default-storage-engine = innodb
     innodb_file_per_table
     collation-server = utf8_general_ci
     init-connect = 'SET NAMES utf8'
     character-set-server = utf8

To finalize installation

ubuntu or debian

1. Restart the database service:

   # service mysql restart

rdo or obs

1. Start the database service and configure it to start when the system boots:

   rdo

   # systemctl enable mariadb.service
   # systemctl start mariadb.service

   obs

   # systemctl enable mysql.service
   # systemctl start mysql.service

ubuntu or debian

2. Secure the database service:

   mariadb_output.txt

rdo or obs

2. Secure the database service including choosing a suitable password for the root account:

   mariadb_output.txt

Message queue

OpenStack uses a message queue to coordinate operations and status information among services. The message queue service typically runs on the controller node. OpenStack supports several message queue services including RabbitMQ, Qpid, and ZeroMQ. However, most distributions that package OpenStack support a particular message queue service. This guide implements the RabbitMQ message queue service because most distributions support it. If you prefer to implement a different message queue service, consult the documentation associated with it.

To install the message queue service

• Install the package:

  ubuntu or debian

  # apt-get install rabbitmq-server

  rdo

  # yum install rabbitmq-server

  obs

  # zypper install rabbitmq-server

To configure the message queue service

1. Start the message queue service and configure it to start when the system boots:

   rdo or obs

   # systemctl enable rabbitmq-server.service
   # systemctl start rabbitmq-server.service

2. Add the openstack user:

   # rabbitmqctl add_user openstack `RABBIT_PASS`
     Creating user "openstack" ...
     ...done.

   Replace RABBIT_PASS with a suitable password.

3. Permit configuration, write, and read access for the openstack user:

   # rabbitmqctl set_permissions openstack ".*" ".*" ".*"
     Setting permissions for user "openstack" in vhost "/" ...
     ...done.