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Flagger

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Rancher Fleet

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Flagger vs Rancher Fleet: What are the differences?

What is Flagger? Progressive delivery Kubernetes operator. Progressive Delivery operator for Kubernetes (Canary, A/B Testing and Blue/Green deployments).

What is Rancher Fleet? Manage large fleets of Kubernetes clusters. It is a Kubernetes cluster fleet controller specifically designed to address the challenges of running thousands to millions of clusters across the world. While it's designed for massive scale the concepts still apply for even small deployments of less than 10 clusters. It is lightweight enough to run on the smallest of deployments too and even has merit in a single node cluster managing only itself.

Flagger and Rancher Fleet can be categorized as "Container" tools.

Some of the features offered by Flagger are:

  • Flexible Traffic Routing
  • Extensible Validation
  • Progressive Delivery

On the other hand, Rancher Fleet provides the following key features:

  • Kubernetes cluster fleet controller
  • Designed for massive scale
  • Lightweight

Rancher Fleet is an open source tool with 546 GitHub stars and 49 GitHub forks. Here's a link to Rancher Fleet's open source repository on GitHub.

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What is Flagger?

Progressive Delivery operator for Kubernetes (Canary, A/B Testing and Blue/Green deployments)

What is Rancher Fleet?

It is a Kubernetes cluster fleet controller specifically designed to address the challenges of running thousands to millions of clusters across the world. While it's designed for massive scale the concepts still apply for even small deployments of less than 10 clusters. It is lightweight enough to run on the smallest of deployments too and even has merit in a single node cluster managing only itself.

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What are some alternatives to Flagger and Rancher Fleet?
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.
Helm
Helm is the best way to find, share, and use software built for Kubernetes.
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.
See all alternatives