NEW! The Definitive Guide to Understanding Flagger

By Twain Taylor
October 19, 2023

Progressive delivery is not new, but the GitOps approach to progressive delivery is, thanks to Flagger. Read on to learn how you can get started with Flagger.

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Progressive delivery is complex if done manually. However, given the power behind Kubernetes, YAML files, and Git repositories that can clearly define configuration at each step of the deployment process, progressive delivery is very powerful when done by purpose-built tools. Flagger is a GitOps-based tool that does just this. It works with Flux CD to enable progressive delivery capabilities never possible earlier. We’ve just released a new guide covering all you need to know to get started with Flagger.

Why use Flagger for progressive delivery?

Flagger is Kubernetes native. It seamlessly integrates with Kubernetes without adding any extra load. Not just Kubernetes, Flagger is seamlessly integrated with Flux CD, the leading continuous delivery tool for GitOps. This puts Flagger in a unique position to take advantage of all that the cloud-native ecosystems and GitOps ecosystem has to offer.

Flagger is capable of various types of progressive delivery approaches such as canary releasing, blue-green deployments, A/B testing, session affinity, rolling updates, rollbacks, and a whole lot more.


It integrates with service mesh tools like Linkerd, Istio, or Kuma mesh to manage traffic routing during the progressive delivery process. All the complex processes behind traffic routing are abstracted away to give you a simple, yet powerful way to manage your progressive delivery deployments with pinpoint precision.

What you will learn in this guide?

We’ve done our best to keep this guide advanced enough for you to actually get to implementing progressive delivery with Flagger, and simple enough for someone who’s never heard of Flagger or progressive delivery to dip their toes in. Here’s what the guide covers:

  • How does Flagger work?
  • Deployment strategies offered by Flagger
  • Installing & getting started with Flagger
  • Various options to monitor progressive delivery
  • The benefits of using Flagger
  • How Flux & Flagger work better together

With so much covered, this is one guide you won’t want to miss out on if you’ve been practicing GitOps for a while, or if you’re looking for ways to make deployments more automated and less risky. Check out “The Ultimate Guide to Flagger” technology page, and start doing progressive delivery the way it was meant to be done.

Contact us today to see how we can help you automate progressive delivery for risk-free deployments.


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Blue/Green Deployments

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Reduce the risk of failed deployments with progressive delivery using Flagger

Read this guide to learn how you can get started with progressive delivery using Flagger.

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