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54 lines
2.2 KiB
Markdown
54 lines
2.2 KiB
Markdown
---
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description: Flagger is a progressive delivery Kubernetes operator
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---
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# Introduction
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[Flagger](https://github.com/fluxcd/flagger) is a **Kubernetes** operator
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that automates the promotion of canary deployments using
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**Istio**, **Linkerd**, **App Mesh**, **NGINX**, **Skipper**, **Contour**, **Gloo** or **Traefik**
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routing for traffic shifting and **Prometheus** metrics for canary analysis.
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The canary analysis can be extended with webhooks for running
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system integration/acceptance tests, load tests, or any other custom validation.
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Flagger implements a control loop that gradually shifts traffic to the canary
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while measuring key performance indicators like HTTP requests success rate,
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requests average duration and pods health.
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Based on analysis of the **KPIs** a canary is promoted or aborted,
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and the analysis result is published to **Slack** or **MS Teams**.
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Flagger can be configured with Kubernetes custom resources and is compatible with any CI/CD solutions made for Kubernetes.
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Since Flagger is declarative and reacts to Kubernetes events,
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it can be used in **GitOps** pipelines together with Flux CD or JenkinsX.
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Flagger is a [Cloud Native Computing Foundation](https://cncf.io/) project.
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## Getting started
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To get started with Flagger, chose one of the supported routing providers and
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[install](install/flagger-install-on-kubernetes.md) Flagger with Helm or Kustomize.
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After install Flagger, you can follow one of these tutorials to get started:
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**Service mesh tutorials**
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* [Istio](tutorials/istio-progressive-delivery.md)
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* [Linkerd](tutorials/linkerd-progressive-delivery.md)
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* [AWS App Mesh](tutorials/appmesh-progressive-delivery.md)
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**Ingress controller tutorials**
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* [Contour](tutorials/contour-progressive-delivery.md)
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* [Gloo](tutorials/gloo-progressive-delivery.md)
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* [NGINX Ingress](tutorials/nginx-progressive-delivery.md)
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* [Skipper Ingress](tutorials/skipper-progressive-delivery.md)
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* [Traefik](tutorials/traefik-progressive-delivery.md)
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**Hands-on GitOps workshops**
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* [Istio](https://github.com/stefanprodan/gitops-istio)
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* [Linkerd](https://helm.workshop.flagger.dev)
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* [AWS App Mesh](https://eks.handson.flagger.dev)
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