gitops-playground's Introduction

GitOps Playground

This repo serves as a starting point to explore and learn GitOps tooling in a local Kubernetes cluster.

What is GitOps?

GitOps is the automation of DevOps best practices for application management.

Key Properties:

Git is the single source of truth
System state is defined in a declarative manner
CI/CD is responsible for building, testing, and deployment
Commits are the trigger for changes to a target environment
Changes to the environment can be monitored and provide feedback

Application Deployment Tooling

Flux
- Pros
  - Supports Helm and Kustomize
  - Simple approach to automatic application deployments
  - Multi-tenant support
- Cons
  - CLI driven, no native UI support
ArgoCD
- Pros
  - Supports Helm and Kustomize
  - Native UI
  - Multi-tenant support
- Cons
  - Argo deployments are a bit more involved

Local Development

Local development leverages K3D to create a local Kubernetes cluster.

Kubectl and FluxCLI are used to bootstrap the cluster.

A hello world app will be deployed via Flux and ArgoCD. The built-in Traefik ingress controller is used to proxy the applications.

URL endpoints:

Requirements

Usage

Run make create to create the local Kubernetes cluster and bootstrap Flux and ArgoCD.

Make Targets

❯ make
help                           View help information
asdf-bootstrap                 Install all tools through asdf-vm
flux-bootstrap                 Install flux in k3d cluster
argo-bootstrap                 Install argo in k3d cluster
bootstrap                      Perform all bootstrapping required for local development
create                         Create local development environment
clean                          Destroy local development environment

Recommend Projects