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FluxCD
Keep your Kubernetes cluster in sync with Git — automatically.
0Free
GitOps Kubernetes-tools
Overview
A GitOps operator for Kubernetes that automates deployment of container workloads using Git as the source of truth.
Key Features
- Continuously reconciles cluster state with Git repositories
- Supports Helm releases, Kustomize overlays, and raw manifests
- Image automation: auto-updates image tags in Git when new images are pushed
- Multi-tenancy with fine-grained RBAC per team namespace
- Notifications to Slack, Teams, and other webhooks on sync events
- CNCF graduated project with strong community and enterprise support
Real-World Workflows
Automated GitOps delivery for a Kubernetes app
- 1Install Flux into the cluster and bootstrap it against a Git repository
- 2Define GitRepository and Kustomization resources pointing to your manifests
- 3Flux polls the repo and applies any new commits to the cluster automatically
- 4Set up ImageRepository and ImagePolicy to auto-promote new image tags
- 5Use Flagger alongside Flux for canary or blue/green analysis before promotion
Multi-tenant cluster management
- 1Bootstrap Flux with a monorepo containing per-team directories
- 2Each team's Kustomization runs with a dedicated service account
- 3Teams push to their own path; Flux applies changes only to their namespace
- 4Platform team controls shared infra (ingress, monitoring) via a separate path
Getting Started
brew install fluxcd/tap/flux flux bootstrap github \ --owner=my-org \ --repository=fleet-infra \ --branch=main \ --path=clusters/my-cluster
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