Docker

Slimming down Docker images

It’s been a while since I posted anything about Docker. That’s mostly because I still don’t really use it for anything – playing around locally, testing and learning doesn’t count yet.

But just to keep the ball rolling, here are a couple of handy links for the ideas on how to improve your Docker images, so that Docker uses much less space, benefits more from caching, and brings up the containers faster:

Both articles are around the same theme – choose your base image carefully, try to minimize the layers, use only what you need, and don’t forget to clean up the disk space with “docker system prune“.

Persisting state between AWS EC2 spot instances

“Persisting state between AWS EC2 spot instances” is a handy guide into using Amazon EC2 spot instances instead of on-demand or reserved instances and preserving the state of the instance between terminations. This is not something that I’ve personally tried yet, but with the ever-growing number of instances I managed on the AWS, this definitely looks like an interesting approach.

Spellbook of Modern Web Dev

Spellbook of Modern Web Dev is a collection of 2,000+ carefully selected links to resources on anything web development related. It covers subjects from Internet history and basics of HTML, CSS, and Javascript, all the way to tools, libraries and advanced usage of web technologies, and more; from network protocols and browser compatibility to development environments, containers, and ChatOps.

This document originated from a bunch of most commonly used links and learning resources I sent to every new web developer on our full-stack web development team.

For each problem domain and each technology, I try my best to pick only one or a few links that are most important, typical, common or popular and not outdated, base on the clear trends, public data and empirical observation.

Prefer fine-grained classifications and deep hierarchies over featureless descriptions and distractive comments.

Ideally, each line is a unique category. The ” / “ symbol between the links means they are replaceable. The “, “symbol between the links means they are complementary.

I wish this document could be closer to a kind of knowledge graph or skill tree than a list or a collection.

It currently contains 2000+ links (projects, tools, plugins, services, articles, books, sites, etc.)

On one hand, this is one of the best single resources on the topic of web development that I’ve seen in a very long time. On the other hand, it re-confirms my belief in “there is no such thing as a full-stack web developer”. There’s just too many levels, and there’s too much depth to each level for a single individual to be an expert at. But you get bonus points for trying.

Introducing Moby Project: a new open-source project to advance the software containerization movement

Docker Blog is introducing the Moby Project:

The Moby Project is a new open-source project to advance the software containerization movement and help the ecosystem take containers mainstream. It provides a library of components, a framework for assembling them into custom container-based systems and a place for all container enthusiasts to experiment and exchange ideas.

This just had to happen, given the nature of the Open Source and the importance of the container technology for the modern infrastructure.

BitBucket Pipelines improved support for Docker

Here are some exciting news from the BitBucket Pipelines blog: Bitbucket Pipelines now supports building Docker images, and service containers for database testing.

We developed Pipelines to enable teams to test and deploy software faster, using Docker containers to manage their build environment. Now we’re adding advanced Docker support – building Docker images, and Service containers for database testing.