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Build, tag and push Docker images using Travis CI
Docker Hub has Automated Builds capability to automatically build an image when you push changes to repository. It does its job perfectly. But sometimes you need more control over this process like tagging or triggering build of dependent images. You can do this by using Travis CI and adding following…
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Backup CoreOS's data volumes
Yaron made a great Docker image for creating backups using Duplicity. It's designed to make backups of host directories, but what I wanted is to backup other container's volumes. You can do this with this CoreOS unit file: [Unit] Description=Backup After=docker.service Requires=docker.service [Service] User=core…
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Copy data from one data volume to another
Recently I've played around with Docker and CoreOS I made some mistakes in the beginning. When I discovered that my data volume is based on the same image as the container which is supposed to use it (therefore wasting disk space) I wanted to move my data from the old…
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Place your profile on 3D printed coins
Some time ago our friend Maciej introduced us to a great card game called Coup. When we purchased localised version it turned out that instead of coins, it contains separate cards with "current balance" fields which you should navigate using a small marker. It's not very usable and…
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Mirror with NeoPixel lights
Couple months ago I promised Ola that I'll pimp up her Ikea TRENSUM mirror with some lights. After a bit of time and failed attempts of mounting LEDs on a ring I decided to use Adafruit's NeoPixel ring which has perfect diameter for this mirror (coincidence? I don't think so.…