Flux
Lightweight CNCF GitOps operator with excellent performance and progressive delivery capabilities.
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Explore Flux
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Features
Cache Management
Built-in caching mechanisms to speed up builds
Not a CI build system
Deployment Gate Approvals
Manual approval steps before production deployments
Health assessment, promotion gates, dependency-based ordering
Docker/Kubernetes Support
Native support for building and deploying containerized applications
K8s-native GitOps operator, manages manifests via Git sync
Hosted Runners
Managed build infrastructure provided by the platform
Not a CI runner system - runs as K8s operator in-cluster
Marketplace/Plugins
Extensible ecosystem of pre-built integrations and plugins
No plugin marketplace - Kustomize/Helm providers built-in
Matrix Builds
Run tests across multiple OS and language versions in parallel
Not a CI build system
Parallel Execution
Run multiple jobs simultaneously to reduce build times
Not a CI build system
Pipeline as Code
Define CI/CD pipelines through code files in the repository
Git as source of truth, Kustomize/Helm automation
Secrets Management
Secure storage and injection of API keys and credentials
SOPS, External Secrets, K8s secrets integration
Self-Hosted Runners
Ability to run build agents on your own infrastructure
Not a CI runner system - runs as K8s operator in-cluster
Best For
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