StackShareStackShare
Follow on
StackShare

Discover and share technology stacks from companies around the world.

Follow on

© 2025 StackShare. All rights reserved.

Product

  • Stacks
  • Tools
  • Feed

Company

  • About
  • Contact

Legal

  • Privacy Policy
  • Terms of Service
  1. Stackups
  2. Application & Data
  3. Container Registry
  4. Container Tools
  5. Flux CD vs Gatekeeper

Flux CD vs Gatekeeper

OverviewComparisonAlternatives

Overview

Flux CD
Flux CD
Stacks81
Followers76
Votes1
GitHub Stars6.9K
Forks1.1K
Gatekeeper
Gatekeeper
Stacks16
Followers18
Votes0
GitHub Stars4.0K
Forks824

Flux CD vs Gatekeeper: What are the differences?

# Introduction
This Markdown code explores the key differences between Flux CD and Gatekeeper, two popular open-source tools used in Kubernetes environments.

1. **Architecture**: Flux CD is a continuous delivery tool that automates the deployment of applications and configurations in Kubernetes clusters. On the other hand, Gatekeeper is a policy engine for Kubernetes that enforces policies on resources before they are admitted into the cluster.
2. **Use Case**: Flux CD is ideal for managing the deployment pipelines and keeping the cluster in sync with a Git repository, while Gatekeeper is better suited for ensuring that resources in the cluster comply with specific policies and constraints.
3. **Focus**: Flux CD focuses on the deployment and synchronization of applications and configurations, providing a GitOps approach to managing Kubernetes clusters. Gatekeeper, on the other hand, focuses on governance and compliance, ensuring that resources meet the defined policies.
4. **Integration**: Flux CD integrates with CI/CD pipelines and Git repositories to automate the deployment process, whereas Gatekeeper integrates with Kubernetes admission controllers to enforce policies during resource creation and updates.
5. **Community Support**: Flux CD has a larger community support and adoption due to its focus on continuous delivery practices, while Gatekeeper is gaining popularity in the Kubernetes ecosystem for its policy enforcement capabilities.
6. **Maintenance**: Flux CD requires regular updates to manage the deployment pipelines effectively, whereas Gatekeeper needs ongoing maintenance to implement and enforce policies as per the organization's requirements.

In Summary, Flux CD and Gatekeeper differ in their architecture, use cases, focus, integration, community support, and maintenance requirements in Kubernetes environments.

Share your Stack

Help developers discover the tools you use. Get visibility for your team's tech choices and contribute to the community's knowledge.

View Docs
CLI (Node.js)
or
Manual

Detailed Comparison

Flux CD
Flux CD
Gatekeeper
Gatekeeper

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.

It is a simple to use, open-source, web-based tool to see the OPA Gatekeeper's policies deployed in your cluster and their status.

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
An extensible, parameterized policy library; Native Kubernetes CRDs for instantiating the policy library; Native Kubernetes CRDs for extending the policy library; Audit functionality
Statistics
GitHub Stars
6.9K
GitHub Stars
4.0K
GitHub Forks
1.1K
GitHub Forks
824
Stacks
81
Stacks
16
Followers
76
Followers
18
Votes
1
Votes
0
Pros & Cons
Pros
  • 1
    Open Source
No community feedback yet
Integrations
Git
Git
Kubernetes
Kubernetes
YAML
YAML
Kubernetes
Kubernetes

What are some alternatives to Flux CD, Gatekeeper?

Kubernetes

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.

Rancher

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 Compose

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.

Docker Swarm

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.

Tutum

Tutum

Tutum lets developers easily manage and run lightweight, portable, self-sufficient containers from any application. AWS-like control, Heroku-like ease. The same container that a developer builds and tests on a laptop can run at scale in Tutum.

Portainer

Portainer

It is a universal container management tool. It works with Kubernetes, Docker, Docker Swarm and Azure ACI. It allows you to manage containers without needing to know platform-specific code.

Codefresh

Codefresh

Automate and parallelize testing. Codefresh allows teams to spin up on-demand compositions to run unit and integration tests as part of the continuous integration process. Jenkins integration allows more complex pipelines.

CAST.AI

CAST.AI

It is an AI-driven cloud optimization platform for Kubernetes. Instantly cut your cloud bill, prevent downtime, and 10X the power of DevOps.

k3s

k3s

Certified Kubernetes distribution designed for production workloads in unattended, resource-constrained, remote locations or inside IoT appliances. Supports something as small as a Raspberry Pi or as large as an AWS a1.4xlarge 32GiB server.

Flocker

Flocker

Flocker is a data volume manager and multi-host Docker cluster management tool. With it you can control your data using the same tools you use for your stateless applications. This means that you can run your databases, queues and key-value stores in Docker and move them around as easily as the rest of your app.

Related Comparisons

GitHub
Bitbucket

Bitbucket vs GitHub vs GitLab

GitHub
Bitbucket

AWS CodeCommit vs Bitbucket vs GitHub

Kubernetes
Rancher

Docker Swarm vs Kubernetes vs Rancher

gulp
Grunt

Grunt vs Webpack vs gulp

Graphite
Kibana

Grafana vs Graphite vs Kibana