e0ne's comments

The Easiest Way to Parse Xml in Python

Published at January 3, 2019 ·  1 min read

I would like to add this as a note here. I really hope that we will not use XML anymore in the nearest future but in case if somebody needs it, you have to use untangle. untangle is awesome pure python library to parse XML withoud pain. You just need to try if if XML still exists in your world....

Pros and Cons of Vue.js

Published at January 2, 2019 ·  3 min read

Since I started to learn Vue.js a few months ago, I realized that it has some benefits I like and some things which I really hate. I’m not an expert in this framework, but I would like to share my thoughts about it. Pros: Simplicity It is really easy to integrate it into your existing web application by just adding one more ~20KB-size JavaScript library. It allows you to start using it with an old or legacy web site like you did with jQuery in the past!...

New Engine

Published at January 1, 2019 ·  1 min read

Actually, it was done some time ago but I think it’s time to make it more official. This blog was finally migrated from outdated blogengine.net to new Hugo. There is still a log of work in progress: restore images, fix theme, RSS and re-enable comments. I hope, it’ll help me to create more awesome posts this year. All sources are available now at GitHub:: https://github.com/e0ne/blog.e0ne.info https://github.com/e0ne/e0ne-hugo ...

How to get hardware info in Linux console/CLI

Published at October 2, 2018 ·  2 min read

Sometimes it’s needed to get hardware information on your Linux desktop or server using the command line only. Of course, you can do everything via CLI in Linux. Here just some reminders for myself how to do it. Most of the information you can get using the following three commands: lspci - list all PCI devices lshw - list hardware dmidecode - DMI table decoder Using multiple keys to these CLI tools you can get everything you need....

How to run CKAN tests

Published at January 4, 2018 ·  3 min read

CKAN is an open-source DMS (data management system) for powering data hubs and data portals. CKAN makes it easy to publish, share and use data. It powers datahub.io, catalog.data.gov and europeandataportal.eu/data/en/dataset among many other sites. http://ckan.org/ Open source world is interesting and challenging. Sometimes it’s easy and cheap. Sometimes it’s hard to contribute and costs a lot. Looking into the CKAN I was surprised that it’s used by government portals....

Remote console via SSH with own bashrc

Published at August 9, 2017 ·  1 min read

I think, most of us have customized bash or zsh environment. I’m too lazy to switch from bash to zsh, so I use bash on my laptop. There are some benefits: bash is still the more popular shell, so it exists on mostly Linux-based servers. That’s why I try to use my .bashrc wherever it’s possible. But on a remote server, sometimes you don’t have the own user account. That’s why I’ve added a very simple alias for ssh command to mine [....

This test is too slow

Published at July 28, 2017 ·  1 min read

Sometimes we need to understand why unit-test is so slow. Sometimes I’m to lazy to go deep to understand why. That’s why I’ve created a very simple profiled class to make unit-tests profiling fast and simple. I used only cProfile, so it will work on any Python project. It’s so simple, so I can’t talk about it more. You can install it via ‘pip install ProfiledTest’ and use it like:...

Using OpenStack Cinder with LIO target

Published at February 23, 2017 ·  2 min read

What is LIO target? Linux-OI Target is a Linux SCSI target introduced in a kernel v.2.6.38 and supports different fabrics modules like FibreChannel, iSCSI, iSER, etc. It works in a kernel space, so it’s faster than tgtd which is used in Cinder by default. Why do we still use tgtd instead of more faster LIO in Cinder by default? It’s only because we have to support rolling upgrades and we don’t know how to migrate from TGTd to LIO in a such way and pass Grenade successfully....

iTerm2 - The Best Terminal App

Published at August 15, 2016 ·  1 min read

I don’t like to post reviews. But this app is amazing! I use it more than 3 years and just want to share with you a list of my favorite features:   Split Panes - I started use iTerm2 because of it. Just press Cmd+d to split current panel. Cmd+Alt+Arrow to move between the panels Search - Cmd+f to search throm commands and their output it work for the all session history Inline images - seriously, you can view images in your terminal....

Attach Cinder Volume to the Ironic Instance without Nova

Published at January 13, 2016 ·  3 min read

OpenStack Cinder provides an API to attach/detach volume to Nova instances. This is public, but not documented API which is used only by Nova now. In scope of “Attach/detach volumes without Nova” [1] blueprint we introduce new python-cinderclient extension to provide attach/detach API not only for Nova called python-brick-cinderclient-ext. Before Mitaka release everybody who want to use Cinder volumes not only with Nova instances have to create hardening scripts based on python-cinderclient and os-brick [3] projects to make it done....


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