At the end of last year I wrote about some basic methods for debugging networking issues inside a Kubernetes Cluster. In that article we very briefly mentioned a then-alpha feature (with a complicated sounding name) called Ephemeral Debug Containers first introduced back in Kubernetes v1.16. This looks to be the real future of debugging in Kubernetes and as of v1.20 it’s finally in beta. This great feature really strengthens a . . .
Docker Hub has become the de facto standard for Container Registries and for many scenarios it will do the trick, however it won’t do for everything. Much like operating a warehouse of physical goods it’s important to be able to protect against counterfeits and be able to verify the integrity of your stock and working from a pool of verifiable good images is important. Much in the same way you . . .
Previously we looked at implementing a CI/CD pipeline using both Terraform and Ansible for provisioning and Configuration Management. In this deployment we relied on an official Python Docker image to build our Ansible environment, however this required a few steps that add a few top-heavy steps that could be solved by creating our own Docker image instead. The sample code for this post is in my GitHub at https://github.com/tinfoilcipher/ansible-aws-docker-image. Speeding . . .
Previously we’ve discussed the deployment of Docker containers to Azure and managing Scale Out of instances but not the use of Docker directly. The terminology of Docker has become a little confused of late as containers become the new hot topic, for clarity Docker itself is an application that can be used to create, manage and orchestrate containers, and it’s the orchestration that we’re going to be looking at in . . .
If you’re anything like me, you probably spent years hearing about the wonders of containerisation and didn’t know where to start. Docker, Kubernetes, Swarm, ECS, App Services and Containers are thrown around as almost interchangeable terms and to the uninitiated it’s just another wall of terms that means nothing (spoiler: the terms aren’t interchangeable and Docker isn’t the only game in town, it’s just the most popular form of container). . . .