What is Flux CD?
It is a tool that automatically ensures that the state of your Kubernetes cluster matches the configuration you’ve supplied in Git. It uses an operator in the cluster to trigger deployments inside Kubernetes, which means that you don’t need a separate continuous delivery tool.
Flux CD is a tool in the Container Tools category of a tech stack.
Flux CD is an open source tool with 6.9K GitHub stars and 1.1K GitHub forks. Here’s a link to Flux CD's open source repository on GitHub
Who uses Flux CD?
Companies
33 companies reportedly use Flux CD in their tech stacks, including main, StreamElements, and Onefootball.
Developers
33 developers on StackShare have stated that they use Flux CD.
Flux CD Integrations
Pros of Flux CD
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Flux CD's Features
- Describe the entire desired state of your system in Git. This includes apps, configuration, dashboards, monitoring, and everything else
- Use YAML to enforce conformance to the declared system. You don’t need to run kubectl because all changes go through Git. Use diffing tools to detect divergence between observed and desired state and receive notifications
- Everything is controlled through pull requests, which means no learning curve for new developers. Just use your standard PR process. Your Git history provides a sequence of transactions, allowing you to recover system state from any snapshot. Fix a production issue via pull request rather than making changes to the running system
Flux CD Alternatives & Comparisons
What are some alternatives to Flux CD?
Kubernetes
Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions.
Docker Compose
With Compose, you define a multi-container application in a single file, then spin your application up in a single command which does everything that needs to be done to get it running.
Rancher
Rancher is an open source container management platform that includes full distributions of Kubernetes, Apache Mesos and Docker Swarm, and makes it simple to operate container clusters on any cloud or infrastructure platform.
Docker Swarm
Swarm serves the standard Docker API, so any tool which already communicates with a Docker daemon can use Swarm to transparently scale to multiple hosts: Dokku, Compose, Krane, Deis, DockerUI, Shipyard, Drone, Jenkins... and, of course, the Docker client itself.
Argo
Argo is an open source container-native workflow engine for getting work done on Kubernetes. Argo is implemented as a Kubernetes CRD (Custom Resource Definition).
