The linked article suggests an interesting way to speed up tests of Rails + Postgres apps: PostgreSQL allows the creation of...
This Capistrano task runs a command on all servers. bundle exec cap production app:run cmd='zgrep -P "..." RAILS_ROOT/log/production.log...
Getting CSS (and JS) live reloading to work in a esbuild / Rails project is a bit of a hassle, but...
Most of our applications use CarrierWave for file uploads. CarrierWave has an integrated processing mechanism for different file versions with...
By default, Devise sends all emails synchronously with deliver_now. To change that, Devise's readme suggests overwriting the send...
You don't want sensitive user data in your logs. Background Rails per default filters sensitive data like...
Disclaimer This card is a collection of guides and things to have in mind when upgrading to a specific version...
Both knapsack and parallel_tests have the option to split groups by historic execution time. The required logs for this...
For my computer science bachelor's thesis I programmed and evaluated a CLI Test Case Prioritization (TCP) tool for makandra...
Git log offers useful options for filtering. This card provides a short overview. By message Only commits that include a...
Suppose you want to implement a publish/subscribe pattern in your Frontend application to react to data changes and events. First...
Intel CPUs receive updates, including security relevant upgrades, through 2 channels: Firmware/UEFI BIOS updates can also update the microcode in...
When RubyMine reports Rubocop returning "exit code -1", upgrading Rubocop can be the fix: gem install rubocop "The logs" can...
Splitting up commits makes the process of reviewing often easier, since you can create several merge requests or review every...
tl;dr asdf allows you to manage multiple runtime versions with a single CLI tool and is backwards compatible by...
journalctl _CMDLINE=dockerd podman journalctl SYSLOG_IDENTIFIER=podman identifying potential filter fields journalctl -o verbose journalctl -o json | jq
When a nginx reverse proxy complains about upstreams sending too big headers, tweaking the buffers responsibly can help to prevent...
This is a checklist I use to work on issues. For this purpose I extracted several cards related to the...
Sometimes I ran across a GitHub merge request of a gem where it was not completely obvious in which version...
Das Standardtool für Monitoring auf AWS ist Cloudwatch. Du hast dir in den AWS Kapiteln Cloudwatch sicherlich schon grundsätzlich angesehen...
If you have for e.g. a Java application which outputs multiline stack traces inside a container running in kubernetes you...
Mit SQL spricht man mit relationalen Datenbanken. Ziele Verstehe die folgenden SQL Befehle SELECT WHERE ORDER INNER JOIN, LEFT JOIN...
Du verstehst, was ein Pod ist und warum es Sinn macht, Container auf diese Weise zu gruppieren.
Our CI setup frequently sees this error while running yarn install: yarn install v1.22.19 [1/4] Resolving packages... [2/4] Fetching packages...