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121 lines
5.4 KiB
Markdown
121 lines
5.4 KiB
Markdown
---
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title: "Multicloud Kubernetes: Running Apps Across EKS, AKS, and GKE"
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authors: ["mike-metral"]
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tags: ["Kubernetes","aws", "azure", "google-cloud", "eks", "aks", "gke"]
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meta_desc: "Run Kubernetes apps using a multicloud strategy. We'll walk through how to leverage multiple Kubernetes providers for deployments across AWS, Azure, and GCP."
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date: "2019-08-14"
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meta_image: "multicloud.png"
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---
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Kubernetes clusters from the managed platforms of AWS Elastic Kubernetes Service (EKS),
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Azure Kubernetes Service (AKS), and GCP Google Kubernetes Engine (GKE) all vary in configuration, management, and resource
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properties. This variance creates unnecessary complexity in cluster provisioning and application
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deployments, as well as for CI/CD and testing.
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Additionally, if you wanted to deploy the *same* app across multiple clusters
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for specific use cases or test scenarios across providers, subtleties
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such as LoadBalancer outputs and cluster connection settings can be a nuisance
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to manage.
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In this post, we'll see how to use Pulumi to deploy the `kuard` app across EKS,
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AKS, GKE and a local Kubernetes cluster, such as Docker Desktop or a self-managed cluster.
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We'll spin up the clusters in each provider, launch the app,
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and manage both cluster and app using the TypeScript programming language.
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<!--more-->
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[View the full example and code.][multicloud-example]
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<center></center>
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## Cluster Provisioning
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Provisioning Kubernetes **clusters** and their IaaS resources is made simple
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through Pulumi's various SDKs for the cloud providers:
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- AWS: [`pulumi/eks`](https://github.com/pulumi/eks)
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- GCP: [`pulumi/gcp`](https://github.com/pulumi/gcp)
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- Azure: [`pulumi/azure`](https://github.com/pulumi/pulumi-azure)
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[Crosswalk for AWS][crosswalk-aws] further allows us to leverage the Pulumi
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libraries of common infrastructure for AWS to simplify cloud resource
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instantiation and management while gaining best-practices as defaults.
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Check out the [`pulumi/awsx`](https://github.com/pulumi/pulumi-awsx) SDK to get
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started.
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For local clusters such as those that are self-managed, or provisioned by a
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tool like Docker Desktop, Pulumi can still deploy workloads to these these
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systems given that the [`pulumi/kubernetes`][pulumi-kubernetes] workload SDK only requires a valid `kubeconfig`
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file. For more information on Pulumi's Kubernetes support, check out the [Kubernetes reference page](/registry/packages/kubernetes/).
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We will use the cloud SDKs to provision the managed Kubernetes clusters. Given
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that we're working with real code, we are afforded developer benefits such as:
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code linting, type checking, IDE hints and completion,
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abstractions and inheritance.
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Leveraging these development features creates the opportunity to encapsulate
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the finer-grained details and settings, and expose the capability to create
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clusters as simple as the following code:
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## Workload Deployment
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Once the clusters are provisioned, we can leverage the
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[`pulumi/kubernetes`][pulumi-kubernetes] SDK to manage the Kubernetes
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**workloads** that will be deployed into the clusters.
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The `pulumi/kubernetes` SDK uses the official Kubernetes [client-go][client-go]
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library to interact with Kubernetes. Therefore, Pulumi can work pretty
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much anywhere `kubectl` works, even if Pulumi was not used to create the cluster.
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## Summary
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As shown in the code samples, it becomes relatively easy to provision and
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manage Kubernetes clusters across multiple clouds, as well as deploy workloads to the cluster
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regardless if they are managed by a cloud provider, or self-managed.
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The various SDKS allow you to leverage industry standard best-practices and
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defaults, in addition to allowing you to further configure and customize how your clusters
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and apps are managed.
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Testing apps across various providers in this form allows you to abstract away
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the details of provider specific implementations, and focus on how your app
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operates in the various contexts.
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## Learn More
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If you'd like to learn about Pulumi and how to manage your
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infrastructure and Kubernetes multi-cloud capabilities through code, [get started today](/docs/get-started/). Pulumi is open source and free to
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use.
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For further examples on how to use Pulumi to create Kubernetes
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clusters, or deploy workloads to a cluster, check out the rest of the
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[Kubernetes tutorials](/registry/packages/kubernetes/how-to-guides/).
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As always, you can check out our code on
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[GitHub](https://github.com/pulumi), follow us on
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[Twitter](https://twitter.com/pulumicorp), subscribe to our [YouTube
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channel](https://www.youtube.com/channel/UC2Dhyn4Ev52YSbcpfnfP0Mw), or
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join our [Community Slack](https://slack.pulumi.com/) channel if you have
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any questions, need support, or just want to say hello.
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If you'd like to chat with our team, or get hands-on assistance with
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migrating your existing configuration code to Pulumi, please don't hesitate to [drop us a line](/contact/).
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We also encourage you to watch Pulumi team member [Levi Blackstone][levi-blackstone]
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demo this post in an episode of the [Kubernetes Community Meeting](https://kubernetes.io/community).
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{{< youtube "EyW2m5Xa_BQ?rel=0&start=67" >}}
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<!-- markdownlint-disable url -->
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[multicloud-example]: https://github.com/pulumi/examples/tree/master/kubernetes-ts-multicloud
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[levi-blackstone]: /blog/author/levi-blackstone/
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[pulumi-kubernetes]: https://github.com/pulumi/pulumi-kubernetes
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[client-go]: https://github.com/kubernetes/client-go
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[crosswalk-aws]: /docs/clouds/aws/guides/
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<!-- markdownlint-enable url -->
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