FluxCD

public A tool that helps to implement GitOps principles for kubernetes. It watches the git repository and automatically applies changes to the cluster.

Features

• Automated deployment: Changes that are made to the git repository are detected by flux. The state in the cluster is then synchronised, so that it matches the state in the repo
• Multi Tenancy: Allows to deploy to multiple clusters or namespaces. E.g. to Dev, Staging and Prod.
• Integration with Git Providers: Supports Github, Gitlab, Bitbucket

Architecture

• Flux Operator: Runs inside the cluster. Observes changes in the git repository and applies changes to the cluster accordingly
• Helm Operator: Similar to the Flux Operator. Applies changes to helm releases, that are made to helm charts
• Kustomization Operator: Does the same as the Helm Operator, but with regards to kustomize

Further Topics

• FluxCD - Image automation
• FluxCD - Commands and tips
• FluxCD - Preview deployments

Flux Basics

• FluxCD - Bootstrapping with Gitlab
• FluxCD - Recreation to multiple clusters
• FluxCD - Handling git Access Tokens

Flux CD and Helm

• FluxCD - With git as helm charts source
• FluxCD - Modifying the Helm Chart and overriding the default values
• FluxCD - Connect it with a helm repository

Related Links

• API Doc for yaml-files https://fluxcd.io/flux/components/source/api/
• Flux documentation: docu - flux