Docker

One of the most visited pages on my blog is about how to automatically backup Docker volumes. In that post I use the Docker image blacklabelops/volumerize. Unfortunately that image is deprecated since March 2019 and not longer maintained. Under the hood the volumerize image is using the GNU program duplicity, which is an awesome software, but also has it’s downsides. Especially the model of full backups and incremental backups comes from a time where backups where mainly made to tapes (just append new files all the time).
A few weeks ago PostgreSQL 11 was released with a few new features and probably also a lot of improvements and bug fixes since the last release. Although I don’t really have the need to update to the latest version (I just use PostgreSQL as database for my Nextcloud and Miniflux installations), I wanted to migrate it though, to have everything up to date and probably profit from those smaller improvements.

Automatically Backup Docker Volumes

Update I changed my setup because the Docker image used in this post got deprecated and is no longer maintained. Read about my new setup using restic to automatically backup Docker volumes. 👉 New setup Original post For my server needs, I rent a small VPS at Hetzner Cloud. It has two vCPUs, 4 GB of RAM, 40 GB of storage and I can use 20 TB of outgoing traffic each month (the incoming traffic is free and unlimited) and it only costs me 5,83€ each month, a lot cheaper than DigitalOcean, Linode or even AWS.
Hugo is a framework to build static websites. Yesterday I migrated this blog from Ghost - a dynamic NodeJS based CMS - to Hugo, not only to reduce the hardware requirements (a static page uses way less resources), but also to simplify my setup. I already use Hugo for two basic homepages (my personal one and the AndroidPub one), where I don’t have that many requirements regarding “blogging”, because I don’t use them for blogs.
Containers are wonderful and Docker is a really awesome and lifesaving technology, even if you don’t host sites and services with millions of users that need to auto-scale etc. Docker can already simplify a simple hosting setup just with a couple of small webpages and a Git server. Some months ago I switched my whole setup to use only Docker. I used Ubuntu server because that was the best option at my hosting provider.