tailsk8s: Bare Metal Kubernetes with Tailscale

Pronounced "Tail Skates"

• Blog post
• Bare Metal Kubernetes with Tailscale video
• Kubernetes Networking over Tailscale with Public Cloud VMs video

This project walks through setting up a bare metal Kubernetes cluster
that uses Tailscale for networking. For readers already familiar with
both Kubernetes and Tailscale, you can go directly to
Configure CNI Networking for Tailscale.

Labs

• Prerequisites
• Prepare Tailscale Keys
• New Machine: Allow SSH in from Jump Host
• Bringing up a New Machine
• Installing Kubernetes Tools
• Provision Load Balancer
• Initialize Cluster
• Configure CNI Networking for Tailscale
• Adding a New Control Plane Node
• Adding a Worker Node
• Smoke Test
• Add an AWS EC2 VM to the Kubernetes Cluster
• Add a GCP GCE Instance to the Kubernetes Cluster
• Cleaning Up

References, Documentation and Motivation

Over the many days of getting this off the ground, I leaned heavily on
the work and writings of others. I could not have made nearly as much progress
without example projects, blog posts and great documentation. Some that were
particularly helpful:

• kelseyhightower/kubernetes-the-hard-way from Kelsey Hightower
• rmb938/tailscale-cni from Ryan Belgrave
• Deploying Kubernetes on Bare Metal by Layachi Khodja
• kubeadm init/join and ExternalIP vs InternalIP from
  Alasdair Lumsden
• prabhatsharma/kubernetes-the-hard-way-aws from Prabhat Sharma

Development

$ make  # Or `make help`
Makefile for the `tailsk8s` project

Usage:
   make tailscale-advertise-linux-amd64      Build static `tailscale-advertise` binary for linux/amd64
   make tailscale-authorize-linux-amd64      Build static `tailscale-authorize` binary for linux/amd64
   make tailscale-authorize-windows-amd64    Build static `tailscale-authorize` binary for windows/amd64
   make tailscale-withdraw-linux-amd64       Build static `tailscale-withdraw` binary for linux/amd64
   make release                              Build all static binaries