1. Deploy the openshift-logstash helm chart on Rancher

    TypeScript

    To deploy the openshift-logstash Helm chart on Rancher using Pulumi, you would need to go through several steps:

    1. Set up a Kubernetes environment in Rancher: Before deploying any Helm charts, you need a Kubernetes cluster managed by Rancher. Pulumi can help you to provision and manage such a cluster using the rancher2.Cluster resource.

    2. Install the Helm Chart: Once you have the Kubernetes cluster, you can deploy Helm charts using the Pulumi Kubernetes provider, which allows you to interact with Helm charts as Pulumi resources.

    Below I will guide you through the process with a detailed TypeScript program. The explanation will go hand-in-hand with the code comments to help you understand each part.

    First, let's set up a Rancher-managed Kubernetes cluster (this assumes you have Rancher running and have the necessary permission to create clusters).

    TypeScript Program to Create a Rancher-Managed Kubernetes Cluster

    import * as rancher2 from "@pulumi/rancher2"; import * as k8s from "@pulumi/kubernetes"; // Create a new Rancher v2 Cluster const cluster = new rancher2.Cluster("openshift-cluster", { // In a real-world scenario, you would configure your cluster with appropriate properties // such as the desired kubernetes version, node pools, networking setup, etc. // Using an RKE configuration here as an example, but the specifics would depend on your cloud provider and preferences. rkeConfig: { // Specify the Kubernetes network plugin (canal, flannel, calico, etc.) network: { plugin: "canal", }, // Define services such as kube-api, scheduler, kubelet, etc. services: { // Specify the version of Kubernetes to deploy kubeApi: { serviceClusterIpRange: "10.43.0.0/16", }, // Configuration of etcd, the key-value store for cluster data etcd: { backupConfig: { intervalHours: 12, retention: 6, }, }, }, }, // Cluster name in Rancher name: "openshift-cluster", }); // Export the cluster ID export const clusterId = cluster.id;

    In the code above, we create a Kubernetes cluster using the Rancher 2 provider by defining a rancher2.Cluster resource. The rkeConfig property outlines how you want the cluster to be configured, including network plugins and service specifications.

    Deploying the Helm Chart

    With the cluster set up, you can now install the Helm chart for openshift-logstash. Helm charts can be deployed in Pulumi using the k8s.helm.v3.Chart resource.

    // Create a Kubernetes Provider pointing to the cluster created in Rancher const k8sProvider = new k8s.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigRaw, }); // Deploy the 'openshift-logstash' Helm chart const logstashChart = new k8s.helm.v3.Chart("openshift-logstash", { chart: "logstash", version: "7.10.0", // Specify the chart version you want to deploy fetchOpts:{ // This is where you specify the repo URL where the chart is hosted // Replace <repo-url> with the actual repository URL repo: "<repo-url>", }, namespace: "default", // Namespace where you want to deploy the chart }, { provider: k8sProvider }); // Export the resources created by the Helm chart export const logstashResources = logstashChart.resources;

    In the second part of the TypeScript program, we define the k8s.helm.v3.Chart resource, which represents the Helm chart you wish to deploy. The chart property refers to the Helm chart's name, and version specifies the version you want to deploy. The namespace property indicates the Kubernetes namespace where the Helm chart should be installed. Finally, the fetchOpts.repo sets the URL of the Helm repository where the openshift-logstash chart can be found. You should replace <repo-url> with the actual URL of the Helm repository that contains the openshift-logstash chart.

    Please remember to replace the placeholders like <repo-url> with actual values that fit your scenario. After setting up the TypeScript environment and the Pulumi CLI, you can run the program to provision the resources.

    Keep in mind that you will need to have @pulumi/rancher2 and @pulumi/kubernetes installed in your project to be able to run this code. You would normally install these using npm as follows:

    npm install @pulumi/rancher2 @pulumi/kubernetes

    Remember that for this code to run, you should have proper access to manage resources in Rancher and the Helm Chart repository configured correctly with the openshift-logstash chart. If you are not the Rancher server administrator, please make sure to get the necessary kubeconfig from your administrator.


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