Drive distributed storage on Raspberry Pi
The idea was to build a storage device with an easy way to increase its capacity and with data replication. The device was built on top of Raspberry Pi with analog gauges, switches, and a display to indicate and control storage state.… Read more
Reducing Docker image size of a Node.js application
Working on a Node.js application I noticed that deploying its image sometimes takes more time then I want it to. I started digging into the problem and here are two steps to drop Docker image size down from 948MB to 79MB!… Read more
Run Jenkins in Docker container with persistent configuration
One day you realised that you lost both disks in the RAID mirror and your Jenkins has gone forever. And it is a good chance to build new robust Jenkins architecture!
This post is about Jenkins, Docker and storing Jenkins configuration on the GitHub.… Read more
Using SVG icons in ExtJs
In this issue we will figure out how to use any SVG icons in ExtJs buttons.
All icons will be combined to a single sprite that injected to
Example uses Google Icons set.… Read more
Testing ExtJs with Mocha.js
At least two enterprise solutions exists for testing ExtJs applications. They have rich user interface and functionality: Siesta (Bryntum) and new Sencha Test. In contrast to them, here I present small library that allows testing ExtJs application. It uses great open-source Mocha.js framework and PhantomJs for nightly builds.… Read more
Build distribution tool for SenchaCMD
Building ExtJS application with SenchaCMD takes about one minute on my 4-cores laptop. In current project we have about 20 ExtJS applications that are included into one main application (an architectural requirement). So, when I am building whole app, I should take 20-minutes coffee break. Sounds not so bad? Not after third cup :)… Read more
ExtJS 5: disable app.json caching
By default ExtJS 5 enabled cache for
app.json (or I am wrong?).
In some cases you get old version from browser cache, even after new build.… Read more
Make Raspberry Pi Jenkins traffic light
Bash: function converts relative file path to absolute
For converting relative path to absolute full path in scripts I use this simple function. Also it works with path which contain '~’.… Read more
How to find Raspberry Pi IP address (DHCP)
I got my first Raspberry Pi.
I do not have a display and a keyboard that make OS installation process simple. After some search, I found solution which uses preconfigured SD card using a laptop. Used NOOBS v1.5.0 with changed recovery.cmdline file.… Read more