UPWORK/ODESK guru: Tips and Tricks for clients

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Flush Expired Openstack Keystone Tokens

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After a while of running Openstack and performing a lot of testing (especially Tempest) you may find that your database seems to get pretty full … and this is partly down to expired keystone token’s that remain in the DB table.

To resolve this simply setup a periodic Cron job to execute


/usr/bin/keystone-manage token_flush

This will remove all expired tokens to help clean-up the DB a bit

Of coure, this action better to insert as cron task:


# cat keystone_token_flush
#!/bin/bash

10 * * * * root /usr/bin/keystone-manage token_flush

Written by spectre

April 24th, 2017 at 2:11 am

Own installation Ganeti Web Manager + own Python environment + localization (by desire).

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Актуально для текущей-последней версии GWM (в репозитории pip), для Python 2.17.13 (собственная оригинальная инсталляция в /opt).
Apache 2.4, Ganeti 2.15.2 on CentOS7.

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Written by spectre

March 4th, 2017 at 3:33 pm

Protected: Apache 2.4 and compilation mod_wsgi for alternative python version.

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Written by spectre

March 2nd, 2017 at 3:33 pm

Posted in Tips and Tricks

Additional version of Python 2.7.* from source code, local pip and mod_wsgi on Apache2.4

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Python – bunch of difficult sets of scripts on 80%. It is have own pros and cons. Very often – it is problems of difficult dependencies of application, when in OS we see old version of Python interpretator.
Building own version from source is the most appropriate variant of solving if need to use it only for local application in environment of some user or web servers.
Here is sample of commands of shell for getting copy of installation of Python in special directory – /opt.

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Written by spectre

March 2nd, 2017 at 11:07 am

Posted in Python snake

OpenStack : Glance 11.0.1 on OpenSuse 13.2 – ‘cannot import name _uuid_generate_random’

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Если вы получили этот питоньячий костыль при попытке запуска glance

ERROR: Unable to load glance-api-keystone from configuration file /etc/glance/glance-api-paste.ini.
Got: ImportError('cannot import name _uuid_generate_random',)

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Written by spectre

February 14th, 2017 at 5:35 pm

Posted in Openstack

OpenStack : по следам костыльного сообщения – No handlers could be found for logger “oslo_config.cfg”

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Отслеживания питоньячего кода привело к удивительном открытию. В процессы установки glance чуда по мануалам мы получили, в частности два питоньячих модуля в основной системе:

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Written by spectre

February 13th, 2017 at 6:06 pm

Posted in Openstack

OpenStack : Что такое нафиг OSLO, читаем о исходе

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http://docs.openstack.org/project-team-guide/oslo.html

Written by spectre

February 13th, 2017 at 3:48 pm

Posted in Openstack

OpenStack : Glance питоньячий костыль командной строки

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В отличии от консольного ‘opestack’, который может что-то сказать членораздельно о не нужных параметрах вызова, это поделка путает места параметров и типы ошибок.

Так при наличии параметров:

--os-identity-api-version 
или
--os-auth-type password

Она будет уперто выплевывать

#glance: error: argument : invalid choice: u'password' (choose from 'explain', 'image-create', 'image-delete', 'image-download', 'image-list', 'image-show', 'image-tag-delete', 'image-tag-update', 'image-update', 'image-upload', 'location-add', 'location-delete', 'location-update', 'md-namespace-create', 'md-namespace-delete', 'md-namespace-import', 'md-namespace-list', 'md-namespace-objects-delete', 'md-namespace-properties-delete', 'md-namespace-resource-type-list', 'md-namespace-show', 'md-namespace-tags-delete', 'md-namespace-update', 'md-object-create', 'md-object-delete', 'md-object-list', 'md-object-property-show', 'md-object-show', 'md-object-update', 'md-property-create', 'md-property-delete', 'md-property-list', 'md-property-show', 'md-property-update', 'md-resource-type-associate', 'md-resource-type-deassociate', 'md-resource-type-list', 'md-tag-create', 'md-tag-create-multiple', 'md-tag-delete', 'md-tag-list', 'md-tag-show', 'md-tag-update', 'member-create', 'member-delete', 'member-list', 'member-update', 'task-create', 'task-list', 'task-show', 'bash-completion', 'help', 'bash_completion')

Дайте студентам фламастеры и гоните горе кодеров из ПТУ …

Written by spectre

February 13th, 2017 at 2:10 pm

Posted in Openstack

OpenStack : OpenStackClient (python-openstackclient) общий клиент коммандной строки

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питонячий костыль в студии:

OpenStackClient (aka OSC) is a command-line client for OpenStack that brings the command set for Compute, Identity, Image, Object Store and Volume APIs together in a single shell with a uniform command structure. The primary goal is to provide a unified shell command structure and a common language to describe operations in OpenStack.

Где и что искать об этом костыле:

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Written by spectre

February 12th, 2017 at 3:07 pm

Posted in Openstack

OpenStack : компоненты хранилищ – Swift и Cinder

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https://www.ibm.com/developerworks/ru/library/cl-openstack-swift-cinder/#N10108

Written by spectre

February 8th, 2017 at 2:41 pm

Posted in Openstack