Containers: Under The Hood (Vincent Batts)

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Despite the popularity and hype of containers, there is no need to regard containers as a block box. It is important to have an awareness of what's going on under the hood to help optimize your container requirements. In this session, we'll discuss: - Namespacing in the kernel - Copy-on-write storage choices - Portable container formats - Available container alternatives - Validation, trust, and content addressability with image verification See examples and options for your use-cases.

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This document discusses Docker, including what it is, why it is used, and how it works. Docker provides lightweight software containers that package code and its dependencies so the application runs quickly and consistently on any computing infrastructure. It allows applications to be easily deployed and migrated across computing environments. The document outlines how Docker addresses issues like managing multiple software stacks and hardware environments by creating portable containers that can be run anywhere without reconfiguration. Examples of using Docker for microservices, DevOps, and data centers are also provided.

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Yann Rouillard presented principles for a developer-friendly CI/CD pipeline for Kubernetes applications. The principles include having a simple interface like a deployment file template, validating configuration early to fail fast, making the pipeline self-service through automation and templates, providing clear error messages with context, and ensuring the pipeline is troubleshoot-able by developers. Examples were given of implementing these principles using tools like Python scripts, Helm, schemas, and error tracking software. The talk concluded with a Q&A section and thanks to the audience.

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