1. Deploy the flink-kubernetes-operator helm chart on Linode Kubernetes Engine

    TypeScript

    To deploy the Flink Kubernetes Operator Helm chart on a Linode Kubernetes Engine (LKE) cluster using Pulumi, we'll be taking the following steps:

    1. Setup a Pulumi Kubernetes provider to interact with your LKE cluster.
    2. Use the Helm Chart resource to deploy the flink-kubernetes-operator on the LKE cluster.

    Before we start writing our Pulumi program, ensure that you have done the following:

    • You have an active Linode account and have an LKE cluster running.
    • The kubectl command-line tool is configured to interact with your LKE cluster.
    • You have installed the Pulumi CLI and are logged in.
    • You have initialized a Pulumi project in the desired programming language, in our case, TypeScript.

    Now let's start with the Pulumi program.

    Firstly, Set up a Pulumi Kubernetes provider to interact with the LKE cluster. The provider will use the Kubernetes configuration from your local kubeconfig file, which should already be configured to talk to your Linode cluster. Pulumi can leverage the same credentials as kubectl does.

    Secondly, Deploy the flink-kubernetes-operator Helm chart using the Chart resource from the @pulumi/kubernetes package. You will need to specify the correct chart name and repository since Helm charts are typically hosted on a remote server. For the Flink Kubernetes Operator, the chart repository might be something hosted on a public Helm repository like Artifact Hub, or somewhere else.

    Now, I will show you the TypeScript code that performs these actions. Please make sure you replace "my-flink-operator" with a name you want to assign to the Helm deployment, and "linode-cluster" with the name of your LKE cluster resource:

    import * as k8s from "@pulumi/kubernetes"; // Create a Kubernetes provider instance that uses our existing cluster configuration const linodeProvider = new k8s.Provider("linode-provider", { kubeconfig: "<YOUR_KUBECONFIG_CONTENT>", // Direct configuration content from your kubeconfig file. }); // Deploy the flink-kubernetes-operator Helm chart on the LKE cluster const flinkOperatorChart = new k8s.helm.v3.Chart("my-flink-operator", { chart: "flink-kubernetes-operator", // The name of the chart, you might need to update this accordingly. version: "<CHART_VERSION>", // Specify a chart version if necessary. fetchOpts: { repo: "<HELM_CHART_REPOSITORY_URL>", // URL to the repository where the Helm chart is hosted. }, // Optionally, you can add other Helm Chart parameters such as values, namespace, etc. }, { provider: linodeProvider }); // Export the resources created. export const flinkOperatorName = flinkOperatorChart.getResourceName("v1/Service", "my-flink-operator");

    Here's what each part of the code does:

    • @pulumi/kubernetes is the Pulumi Kubernetes package which allows you to interact with your Kubernetes resources using Pulumi.
    • linodeProvider is a provider that knows how to interact with Linode Kubernetes Engine using your kubeconfig file.
    • flinkOperatorChart is the Pulumi resource representing the flink-kubernetes-operator Helm chart.

    Please note that <YOUR_KUBECONFIG_CONTENT>, <CHART_VERSION>, and <HELM_CHART_REPOSITORY_URL> are placeholders that should be replaced with the actual content of your kubeconfig file, the desired version of the Helm chart, and the URL of the Helm chart repository, respectively.

    After writing the code, deploy it with the pulumi up command. Pulumi will show you a preview of the resources that will be created or modified and, upon confirmation, will apply the changes to your LKE cluster.

    Keep in mind, you'll need the appropriate permissions for your cluster to deploy applications. If you encounter any issues with deploying the Helm chart, check if you have the necessary RBAC roles set up in your Kubernetes cluster for the account you're using.


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