docker-node-example VS k3s

Here's a full example project where a Node app is split up between a front-end and back-end with multi-stage builds: https://github.com/nickjj/docker-node-example

Here's a walk through on how to use them https://nickjanetakis.com/blog/docker-tip-94-docker-compose-v2-and-profiles-are-the-best-thing-ever and here's an example Node project that's using profiles https://github.com/nickjj/docker-node-example.

- https://github.com/nickjj/docker-node-example

If your goal is to "learn Docker", I have around 100+ free blog posts and YouTube videos at: https://nickjanetakis.com/blog/tag/docker-tips-tricks-and-tu...

https://github.com/nickjj/docker-node-example is an up to date Node example[0] that's ready to go for development and production and sets up GitHub Actions. Its readme links to a DockerCon talk from about a year ago that covers most of the patterns used in that project and if not some of my more recent blog posts cover the rest.

It doesn't cover feature branch deployments tho, in my opinion that's unrelated to Docker.

[0]: You can replace "node" in the GitHub URL with flask, rails, django and phoenix for other example apps in other tech stacks.

A fully working example Node app that demos the above is here: https://github.com/nickjj/docker-node-example

Opinionated meaning it picks, install, patches your CNI/Ingress/Load Balancer/DNS Server/Metrics Server/Monitoring Setup.

k3s is probably most well known as it ships with bunch of preinstall software: https://github.com/k3s-io/k3s so you can just start throwing yaml files at cluster and handling workloads. It's what I use for my homelab.

Paid things I've heard of include OpenStack and SideroLabs. Haven't used personally by SRE coworkers say good things about them.

For self-hosting I've found https://k3s.io to be really good from the SUSE people. Works on basically any Linux distro and makes self-hosting k8s not miserable.

Yes it’s going to depend on which k8s distribution you’re using. We have work in-progress for k3s to natively support nix-snapshotter: https://github.com/k3s-io/k3s/pull/9319

For other distributions, nix-snapshotter works with official containerd releases so it’s just a matter of toml configuration and a systemd unit for nix-snapshotter.

We run Kubernetes outside of NixOS, but yes the NixOS modules provided by the nix-snapshotter certainly make it simple.

K3S: is a lightweight distribution of Kubernetes that is designed for resource-constrained environments. It is an excellent option for running Kubernetes on a virtual machine or cloud server.

I recently purchased a used Lenovo M900 Think Centre (i7 with 32GB RAM) from eBay to expand my mini-homelab, which was just a single Synology DS218+ plugged into my ISP's router (yuck!). Since I've been spending a big chunk of time at work playing around with Kubernetes, I figured that I'd put my skills to the test and run a k3s node on the new server. While I was familiar with k3s before starting this project, I'd never actually run it before, opting for tools like kind (and minikube before that) to run small test clusters for my local development work.

Kubernetes - k3s distribution

I’ve created a local cluster with K3S and installing Windmill could not be simpler with just one chart to configure, which already has sane defaults to get started. For this demo we will also configure workers to passthrough environment variables to our scripts so that they have access to the Kubernetes API server for later.

You should be familiar with Kubernetes and have set up a Kubernetes cluster. I recommend k3s.