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53 lines
2.2 KiB
Markdown
53 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 progressive delivery tool that automates the release
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process for applications running on Kubernetes. It reduces the risk of introducing a new software
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version in production by gradually shifting traffic to the new version while measuring metrics
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and running conformance tests.
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Flagger implements several deployment strategies (Canary releases, A/B testing, Blue/Green mirroring)
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using a service mesh (App Mesh, Istio, Linkerd)
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or an ingress controller (Contour, Gloo, NGINX, Skipper, Traefik) for traffic routing.
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For release analysis, Flagger can query Prometheus, Datadog, New Relic or CloudWatch
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and for alerting it uses Slack, MS Teams, Discord and Rocket.
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Flagger can be configured with Kubernetes custom resources and is compatible with
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any CI/CD solutions made for Kubernetes. Since Flagger is declarative and reacts to Kubernetes events,
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it can be used in **GitOps** pipelines together with tools like Flux, JenkinsX, Carvel, Argo, etc.
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Flagger is a [Cloud Native Computing Foundation](https://cncf.io/) project
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and part of [Flux](https://fluxcd.io) family of GitOps tools.
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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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