Deploy the istio-cni helm chart on Digital Ocean Kubernetes Service
TypeScriptTo deploy the Istio CNI Helm Chart on DigitalOcean Kubernetes Service using Pulumi, you will need to use the
digitalocean.KubernetesCluster
resource to create a Kubernetes cluster, and then deploy the chart with thekubernetes.helm.v3.Chart
resource within a Pulumi program.I will guide you through the process in TypeScript:
-
Create a Kubernetes Cluster on DigitalOcean: We'll start by defining a Kubernetes cluster using the
digitalocean.KubernetesCluster
resource. You need to specify parameters like the region, version, and node pool details. -
Install Istio CNI Helm Chart: Once the cluster is created, we'll deploy the Istio CNI using the
kubernetes.helm.v3.Chart
resource. This allows you to declare Helm charts as part of your infrastructure in a declarative way.
Here is a Pulumi program in TypeScript that demonstrates these steps:
import * as pulumi from "@pulumi/pulumi"; import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; // Step 1: Create a Kubernetes cluster on DigitalOcean. // Make sure to replace the placeholder values with real values or configuration references. const cluster = new digitalocean.KubernetesCluster("do-cluster", { region: "nyc1", // Specify the DigitalOcean region version: "1.21.5-do.0", // Specify the Kubernetes version nodePool: { name: "default-pool", size: "s-1vcpu-2gb", // Specify the size of the droplets nodeCount: 2, // Specify the number of nodes in the node pool }, }); // Step 2: Deploy the Istio CNI Helm chart into the Kubernetes cluster. const kubeConfig = cluster.kubeConfigs[0].rawConfig; const k8sProvider = new kubernetes.Provider("k8s-provider", { kubeconfig: kubeConfig, }); const istioCniChart = new kubernetes.helm.v3.Chart("istio-cni", { chart: "istio-cni", version: "1.11.0", // Replace with the specific version of Istio CNI you want to install namespace: "kube-system", // Typically Istio is installed in the kube-system namespace fetchOpts: { repo: "https://istio-release.storage.googleapis.com/charts", }, }, { provider: k8sProvider }); // Use the following command in your CLI to get the kubeconfig for the created cluster: // pulumi stack output kubeConfig export const kubeConfigOutput = cluster.kubeConfigs[0].rawConfig;
Here's what each part of the program does:
-
Importing Libraries: We import the required Pulumi libraries for interacting with the Kubernetes cluster and deploying Helm charts.
-
Creating the Cluster: We define a
digitalocean.KubernetesCluster
resource. You should replace the region, version, and the size of the droplets with appropriate values according to your requirements. -
Setting Up Kubernetes Provider: After the cluster is created, we need the Kubeconfig to interact with it programmatically. We create a new instance of
kubernetes.Provider
, passing it the Kubeconfig sourced from our recently created cluster. -
Deploying the Istio CNI Chart: Using the
kubernetes.helm.v3.Chart
resource, we specify the Helm chart we want to deploy, its version, and the namespace. ThefetchOpts
parameter is used to define the repository from where to fetch the chart. -
Exporting Output: Finally, we export the
kubeConfig
so that you can use it withkubectl
directly from the command line.
To run the program:
- Set up a Pulumi account and install the CLI from the Pulumi website.
- Configure Pulumi to use DigitalOcean by setting up the token using Pulumi's configuration.
- Create a new directory, initialize a Pulumi program using
pulumi new typescript
, and then replace the contents ofindex.ts
with the above program. - Run
pulumi up
to preview and deploy the changes.
Remember to replace placeholder values such as regions, droplet sizes, and Kubernetes versions with the actual values you plan to use. Additionally, if you want to specify more advanced configurations for the Istio CNI Helm chart, you might want to set the
values
property in the chart resource to tailor it to your exact requirements.-