How and Why to Containerize Your Development

John Hoestje Development Technology, Docker, Opinion, Tutorial Leave a Comment

This is a tutorial for how to use the VS Code Remote-Containers extension to containerize your development environment. First, I will discuss my reasons for separating my programming environment and why virtual machines didn’t work. Then, I’ll show a simple example using a containerized Python development environment. Finally, I’ll give you my reasons why containerizing the development environment fits what I’m looking for in a solution.

Azure Web Apps in Docker Containers – Part 1

Joe Sciara Architecture, Azure, Cloud, Development Technology, Docker, Tutorial Leave a Comment

So you want to host a web application on Azure with minimal overhead, but how is this done? Azure makes it possible by running an App Service using Docker containers. Setting up an App Service is simple and can be accomplished with a few steps.

In this blog, I’ll explain the steps necessary to generate a Docker image in Azure. Then, we will deploy a web application based on an image we generate. We host the application with the following steps:
1. Create a Container Registry
2. Build a Docker image
3. Create a Web App

[Video] DevOps Orchestration: Kubernetes, OpenShift & Cloud Foundry

Keyhole Software Development Technology, DevOps, Docker, Keyhole, Microservices, OpenShift, Tutorial, Video Leave a Comment

The Keyhole team is excited to share an internal educational video that is now available to the public. In our first-ever video release, we discuss microservices platform orchestration from a broad scope.

Specifically, Principal Consultant Jaime Niswonger takes a technology-agnostic look at the “big ideas” integral to platform orchestration for the enterprise. He introduces three popular orchestration platforms, Kubernetes, OpenShift, and Cloud Foundry, and discusses scaling container deployments in the enterprise. The video is 60 minutes in duration.

Gaining Docker Image Size Efficiencies By Separating Application Layers

Luke Patterson Development Technology, Docker, Java, Spring Boot Leave a Comment

Problem

I was pushing a new Docker image tag for each application code commit, and the admins of the private registry were getting annoyed at how much space I was using.

Solution Summary

Yes, I know there are strategies to clean up old tags but I first wanted to reduce the impact of the tags I was pushing. With the right layering strategy, I knew I could reduce the net registry size increase of consecutive tag pushes.

I wanted to only push what had actually changed in the application. In addition to reducing the impact on the registry, having smaller tag deltas could possibly speed up rolling deployments since nodes could potentially have less to download.

OpenShift Quick Start

David Pitt AWS, DevOps, Docker, Microservices, OpenShift, openshiftseries Leave a Comment

Our previous blog in the series introduced RedHat’s OpenShift solution that provides a way for enterprise teams to implement their own PaaS. Essentially, it sits atop the Docker-based Kubernetes platform to provide a ready-to-use DevOps platform.

This blog introduces two hands-on exercises (taken from our OpenShift Course), that work to walk you through the following tasks:

– Installing OpenShift locally
– Adding a Container with an API service to a Pod

Unfortunately, it will take more than this quick start blog to get OpenShift installed and enabled in an enterprise. That said, developers, system admins, and any party that may be working on or responsible for the platform, will benefit from understanding how to get OpenShift up and running on a local machine as shown in this blog.