In Alpine Linux 3.11, there is an issue with Varnish Cache: reload operation always fails. In this post, I try to analyze why this happens, and provide a patch that solves the issue.
Alpine 3.11 and Varnish Reload Issue
How to Increase per_page Limit in WordPress REST API
Because large queries can hurt site performance, WordPress caps per_page REST parameter at 100 records. However, there are situations when you need to override this value. Luckily, this is easy to do, and this post explains how to do that.
How to Run Docker in Alpine Container in LXC/LXD
When experimenting with Docker Swarm, I decided to set up five more nodes on my local computer. I used Alpine images in the LXC, and tried to use Docker in them. Although docker stared successfully, it was impossible to deploy any services to Alpine nodes, deployment failed with “cgroups: cannot find cgroup mount destination: unknown” error message.
Because I dislike when something that should work, does not work the way I expect it to work, I decided to dig deeper and try to fix the problem.
A Simple Script to Create systemd-nspawn Alpine Container
I needed a small container for experiments to run on my systemd-based machine. LXC and LXD were out of the question. However, systemd has systemd-nspawn tool, which I used to build a container.
The size of the resulting rootfs is around 8.7 MB
IE 11 and cssnano
This post explains how to configure cssnano when you have to support IE 11, and your CSS contains hacks targeted at it.
Ubuntu’s Message of the Day
Looks like some people on Twitter have just discovered update-motd and, in particular, /etc/update-motd.d/50-motd-news.
TL;DR: just run this if you want to disable motd-news:
sudo sed -i 's/^ENABLED=.*/ENABLED=0/' /etc/default/motd-news
TypeScript, preact, and unistore
When I tried to use unistore instead of redux in one of my pet projects, I discovered that its TypeScript typings are not very accurate. In this post I try to come up with better typings for unistore’s connect() function.
Jest: How to Mock window.location.href
There may be a situation where you need to mock methods or properties on window.location in Jest. However, because of peculiarities of jsdom, this could be challenging. In this post there is one of the possible solutions to this problem.
preact-cli 3 and sass-loader 8
When using sass-loader 8.0.0 with preact-cli 3.0.0-next.19, preact build fails with an error: Invalid options object. Sass Loader has been initialised using an options object that does not match the API schema. options has an unknown property ‘includePaths’. Quick fix: use sass-loader 7.3.1.
Easy Way to Make pino and debug Work Together
Sometimes you may need to integrate debug with a high performance logger, such as pino. And of course, there is an NPM package for that: pino-debug. However, if you look at its source code, you will find out that it uses undocumented dirty hacks, which, in my opinion, make it quite fragile. This article demonstrates a much simpler solution.