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Merge pull request #714 from martyav/420-deploy-apps-across-clusters

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#420 SEO Improvements: Canonical links for deploy apps across clusters directory. Part 1/1
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Billy Tat
2023-07-21 11:38:10 -07:00
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versioned_docs/version-2.5/how-to-guides/new-user-guides/deploy-apps-across-clusters/multi-cluster-apps.md
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title: Multi-cluster Apps
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<head>
<link rel="canonical" href="https://ranchermanager.docs.rancher.com/how-to-guides/new-user-guides/deploy-apps-across-clusters/multi-cluster-apps"/>
</head>
> As of Rancher v2.5, we now recommend using [Fleet](fleet.md) for deploying apps across clusters.
Typically, most applications are deployed on a single Kubernetes cluster, but there will be times you might want to deploy multiple copies of the same application across different clusters and/or projects. In Rancher, a _multi-cluster application_, is an application deployed using a Helm chart across multiple clusters. With the ability to deploy the same application across multiple clusters, it avoids the repetition of the same action on each cluster, which could introduce user error during application configuration. With multi-cluster applications, you can customize to have the same configuration across all projects/clusters as well as have the ability to change the configuration based on your target project. Since multi-cluster application is considered a single application, it's easy to manage and maintain this application.
versioned_docs/version-2.5/pages-for-subheaders/fleet-gitops-at-scale.md
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title: Continuous Delivery with Fleet
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<head>
<link rel="canonical" href="https://ranchermanager.docs.rancher.com/how-to-guides/new-user-guides/deploy-apps-across-clusters/fleet"/>
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_Available as of Rancher v2.5_
Continuous Delivery with Fleet is GitOps at scale. Fleet is designed to manage up to a million clusters. It’s also lightweight enough that it works great for a [single cluster](https://fleet.rancher.io/installation#default-install) too, but it really shines when you get to a [large scale](https://fleet.rancher.io/installation#configuration-for-multi-cluster). By large scale we mean either a lot of clusters, a lot of deployments, or a lot of teams in a single organization.