Flux Integrations

Flux integrates with a wide ecosystem of tools across the DevOps lifecycle, including CI/CD platforms, service meshes, monitoring and observability tools, secrets management solutions, and cloud provider services. Its modular controller architecture and standard Kubernetes API patterns make integration straightforward for most Kubernetes-native tools.

Flux integrates with CI/CD platforms through webhooks and Git event triggers. GitHub, GitLab, and Bitbucket webhooks can trigger reconciliation through Flux's notification controller. The Flux image update automation system can connect to container registries (Docker Hub, GHCR, ACR, ECR, GCR) to automatically detect new image versions and update Git repository manifests. Flux can be used alongside any CI system that produces Kubernetes manifests.

Flagger, Flux's companion project for progressive delivery, integrates with multiple service meshes including Istio, Linkerd, Consul Connect, AWS App Mesh, and Kuma. It also integrates with ingress controllers such as NGINX, Gloo, Traefik, Contour, and Skipper. Flagger uses Prometheus metrics for automated canary analysis, enabling automated promotion and rollback decisions based on application performance metrics.

Flux deeply integrates with Microsoft Azure through Azure Arc-enabled Kubernetes, where it serves as the default GitOps engine. It manages applications across Amazon EKS, Azure AKS, Google GKE, and on-premises Kubernetes clusters. The OCI-compatible artifact registry integration enables efficient distribution of configuration artifacts using standard container registries. Cloud provider load balancers and DNS services can be integrated for progressive delivery traffic management.

Flux exposes Prometheus metrics for monitoring controller performance, reconciliation status, and resource states. Pre-built Grafana dashboards are available for visualizing Flux operational metrics. The notification controller supports alerting through Slack, Microsoft Teams, Discord, PagerDuty, OpsGenie, and generic webhooks. Flux events can be exported to logging systems through Kubernetes event hooks and standard container logging.

Flux integrates with Mozilla SOPS for encrypted secrets in Git repositories, supporting encryption backends including AWS KMS, GCP KMS, Azure Key Vault, and age. The Kubernetes External Secrets Operator can synchronize secrets from external providers (AWS Secrets Manager, Azure Key Vault, HashiCorp Vault, GCP Secret Manager) into Kubernetes clusters managed by Flux. Sealed Secrets provides another option for encrypting Kubernetes secrets in Git repositories.