Articles in category: Docker

Send a Slack message when Docker images are updated
Docker

Send a Slack message when Docker images are updated

I needed a way to send a notification to a Slack channel, whenever I push new versions of Docker images to the registry. This post, I explain how I created a function that uses a container registry webhook to call a serverless function that sends a message to a Slack channel.

3 min read
Docker image tagging scheme
Docker

Docker image tagging scheme

In this short article I'll talk about two things - the latest tag in Docker and why you should be careful when using it and how you should come up with your own tagging scheme for your Docker images.

3 min read
Six things to keep in mind when working with Dockerfiles
Docker

Six things to keep in mind when working with Dockerfiles

I have been using Docker directly or indirectly for years now. During that time I shot myself in the foot multiple times by not following suggestions and good practices. I have collected tips and practices and separated them into multiple categories. I am calling these categories Dockerfiles, images, and containers. The first part talks about Dockerfiles - I have included 6 tips and practices you should try and adopt.

4 min read
Beginners guide to Docker
Docker

Beginners guide to Docker

Understanding concepts around Docker images and containers is crucial for anyone starting in cloud-native. Regardless if you're in development, DevOps or program management (or any other technical role :). Once you grasp the basics of Docker it will be so much easier for you to understand things like Kubernetes, service meshes and pretty much any other cloud-native tool works. You can think of this guide as the first practical guide to learning about cloud-native.

19 min read
Build and push your Docker images using Github Actions
Docker

Build and push your Docker images using Github Actions

This article explains how to build a simple CI using Github Actions. It involves triggering the workflow only on version file changes, parsing the image names and then building, tagging and pushing the images to the Docker registry.

9 min read
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