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Build Docker images with GitLab CI on AWS ECR

GitLab CI is a great way to automate testing, building and deploying of almost any application. Recently we came across the requirement to setup a repository with several definitions of Docker container images. For sure we wanted to use GitLab CI to also automate the...

Action Cable on specific page within Ruby on Rails

Using page specific action cable functionality within ruby on rails comes in very handy sometimes. It allows you to target given functionality to specific pages and controllers. Furthermore, it reduces the number of open web sockets, which again reduces your server...

Set default values for has_one association

Sometimes you simply want to set some default values for an associated model within ActiveRecord without thinking too much of creating possible side effects when overriding methods like build_association or add model callbacks. The following example demonstrates the...

5 easy steps to integrate HealthKit

Whether you want to create a new HealthKit-enabled app or update your existing fitness or health app, this tutorial shows you how to easily integrate the new HealthKit API. This allows you to use all benefits of the iOS Health app, including storing your health and...