Multi-stage builds are a great way to keep the size of the resulting image down. They are extremely useful if you want to use scratch-based images for your application. However, unless you are using Buildx or BuildKit, there is a limitation regarding copying extended file attributes across stages. In this post, we discuss several workarounds to this issue.
Quote of the Day
I’m only aware of using lodash when it has yet another security vulnerability
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.
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.
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.
Store FormData object in localStorage
This post describes how to serialize a FormData object to JSON and how to fill the form back with the serialized data.
How to Enable Two Factor Authentication with pam-u2f
We live in a world where data is an incredibly valuable currency, and you are always at risk of loss. Because of this, you must do everything you can to ensure what you hold on your desktops and servers is safe. If you are looking to lock down your Linux servers and desktops as tight as possible, you should consider to make use of two-factor authentication. This article explains how to configure two factor authentication using pam_u2f.
CORS Proxy by Means of nginx
A CORS proxy is a service that allows sites to access resources from other websites, without having to own that website in case when no Access-Control-Allow-Origin header is present on the requested resource. This article shows how to create one with the help of nginx and without writing a single line of code.
SQL Diff Using SQLite Session API
SQLite Session Extension provides a convenient way to create “diffs” between two versions of a table. These “diffs” are binary and are usually much more compact than their SQL counterparts. This article shows how to create and apply such “diffs” to tables.
Mapping OpenSSL Cipher Suite Names to RFC Names
Correspondence between OpenSSL cipher suite names and RFC names taken from http://testssl.sh/openssl-rfc.mapping.html.