DevOps Curriculum

Für den Betrieb von DNS Infrastruktur bietet Amazon den Route53 Service an. Route53 kann weit mehr als viele übliche DNS...

DevOps Curriculum

Für den Betrieb von Containern bietet sich ein Orchestrierungswerkzeug an. Dabei geht es primär darum zu beschreiben wie viel Speicher/CPU...

DevOps Curriculum

Die Elastic Compute Cloud ist ein flexibler Service, der VMs und damit zusammenhängende Komponenten wie Disks, Netzwerkgeräte, Loadbalancing, VM Images...

DevOps Curriculum

AWS VPC ist Teil der EC2 Familie und wird benötigt um Netzwerkressourcen bereitzustellen. Es ist komplett mit Software-defined Networking...

Einer der ältesten und beliebtesten Services von AWS ist S3. Viele Kunden nutzen nur diesen Service während ihre Infrastruktur eigentlich...

tl;dr In Chrome DevTools in the Elements tab or in Firefox in the Inspector tab you can right click...

Git allows you to set push options when pushing a branch to the remote. You can use this to build...

tl;dr In the Elements tab in the Chrome DevTools you can right click on an element and select Store...

Ever felt annoyed by AWS Free Tier limit alert emails? Just disable them: Billing preferences -> Cost Management Preferences -> Receive Free...

DevOps Curriculum

Als DevOps Engineer kann es häufiger vorkommen, dass du ein lokales Testsetup bauen musst, um eine bestimmte Software oder ein...

If you're experiencing that your bundle install command fails with an error message like this, rubygems.org might...

Unpoly's [up-observe], [up-autosubmit] and [up-validate] as well as their programmatic variants up.observe() and up.autosubmit...

tl;dr Since Rails 7+ you can use ComparisonValidator for validations like greater_than, less_than, etc. on dates, numerics...

When terragrunt is relaying information to input variables it's happening via environment variables. Depending on the size of the...

makandra dev

tl;dr git checkout is the swiss army of git commands. If you prefer a semantically more meaningful command for...

Ncdu is a disk usage analyzer with an ncurses interface. It is designed to find space hogs on a remote...

You can use ETags to allow clients to use cached responses, if your application would send the same contents as...

Here are a few common patterns that will probably lead to flaky specs. If you notice them in your specs...

makandra dev

git restore -p diff --git app/models/test.rb index eg3c1k1..843c0a2 31143 --- app/models/test.rb +++ app/models/test.rb @@ -19,6 +19,10 @@ module RoutingFilter path = Rails.root / 'app' + if true + + end + return path

You have uncommited changes (you can always check by using git status), which you want to discard.

workingdraft.de

The robots.txt file and HTML tag can be used to control the behavior of search engine crawlers. Both have different...

If the project you're working on has, say, 39 repositories and counting in GitLab and you need all the...

If you want to see the git history of a project file, that doesn't exist anymore, the normal git...

tl;dr Since Rails 6+ you can use before? and after? to check if a date/time is before or after...