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51 lines
2.4 KiB
Markdown
51 lines
2.4 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 or an ingress controller for traffic routing.
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For release analysis, Flagger can query Prometheus, InfluxDB, Datadog, New Relic, CloudWatch, Stackdriver
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or Graphite 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 CD](install/flagger-install-with-flux.md).
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Flagger is a [Cloud Native Computing Foundation](https://cncf.io/) graduated 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, choose one of the supported routing providers and
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[install](install/flagger-install-with-flux.md) Flagger with Flux CD.
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After installing Flagger, you can follow one of these tutorials to get started:
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**Service mesh tutorials**
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* [Gateway API](tutorials/gatewayapi-progressive-delivery.md)
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* [Istio](tutorials/istio-progressive-delivery.md)
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* [Linkerd](tutorials/linkerd-progressive-delivery.md)
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* [Kuma](tutorials/kuma-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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* [Apache APISIX](tutorials/apisix-progressive-delivery.md)
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The Linux Foundation has registered trademarks and uses trademarks. For a list of trademarks of The Linux Foundation,
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please see our [Trademark Usage page](https://www.linuxfoundation.org/legal/trademark-usage).
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