FluxCD demo

This is a sample demonstration of possibility to deploy HA Kafka to K8S a GitOps way.

Techologies involved:

FluxCD Toolkit
kustomize
Strimzi Kafka operator
Helm
Git
and Kubernetes, obviously.

Installation instructions

Requirements

Git client
Kubernetes cluster admin access
Github or Gitlab token (with write access to your repo)

Install the Flux CLI

Follow the steps in documentation

Install Flux to cluster

Asuming you want to integrate with your Github account:

Fork this repositiory to your personal account
Run the following command:

export GITHUB_TOKEN=<your-github-token>
flux bootstrap github --owner=<your-github-name> \
  --repository=flux \
  --branch=master \
  --path=./clusters/stg3
  --personal
  --token-auth

Command will create repo github.com/<your-github-name>/flux and installs FluxCD components to cluster.

Wait and watch what happens

Reconcilation process should start when FluxCD components are deployed and git repository starts to be periodically scanned for changes. First, the Kafka operator is deployed to operators namespace. Then kafka-related custom resources will be installed (after kustomize transformation valid for stg3 cluster) and Kafka cluster comes to life and Kafka topics are registred.

Clone your repo and play

Clone your forked repo and do some changes. Refer documentation for examples, how the Flux CLI help you when creating new resources. Or you can modify existing ones, it's up to you.

When you finish your changes, commit them to your git repo. Eventually, the Flux source controller will notice the repo change and trigger requested actions.

mouchar / flux