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k8s-ioh-demo

This repository demonstrates how to use FluxCD to deploy launchpad-charts.

Features

  • FluxCD: Automate cluster updates and bootstrap
  • Cilium CNI: Advanced networking and security
  • Kind/Tilt: Automated dev environment setup with a web UI

Requirements

This project uses Nix Flakes to manage and install the necessary dependencies for setting up and managing the cluster mesh. The flake.nix file contains all the required configurations and package dependencies, making the environment setup reproducible and straightforward.

Installing Nix with flakes support is beyond the scope of this repo, however I recommend using the full featured nix-installer at https://github.com/DeterminateSystems/nix-installer.

Alternatively, you can manually install every separate dependencies mentioned in the flake.nix file, but we can't guarantee it working since package versions will most likely not match the one used in the Nix environment.

Getting Started

1. Clone the repository

git clone https://github.com/pinax-network/k8s-ioh-demo.git
cd k8s-ioh-demo

2. Enter the Nix development environment

nix develop

3. Setup the environment variables for bootstrap

Since this demo uses fluxCD to bootstrap the management cluster, you will need to configure some environment variables before bootstrapping.

To bootstrap Flux, the person running the command must have cluster admin rights for the target Kubernetes cluster. It is also required that the person running the command to be the owner of the GitHub repository, or to have admin rights of a GitHub organization.

If you don't have the required access permission to this repo, you will have to change the flux bootstrap script to use your own GitHub Repo instead.

For accessing the GitHub API, the bootstrap command requires a GitHub personal access token (PAT) with administration permissions.

The GitHub PAT can be exported as an environment variable:

export GITHUB_TOKEN=<gh-token>

Alternatively, you can use sops to encrypt a GitHub PAT token in this repo and point the flux bootstrap script to it. If the GITHUB_TOKEN variable is not set, the bootstrap script will try to decrypt the secret using sops automatically.

4. Bootstrap the cluster

This repository contains a Tiltfile that is used for local development. To build a local k8s cluster with kind run:

make setup

To bring up a tilt development environment run tilt up or:

make up

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