Deploy the servicemesh-istio-resource helm chart on Digital Ocean Kubernetes Service
TypeScriptTo deploy the
servicemesh-istio-resource
Helm chart on a DigitalOcean Kubernetes Service (DOKS) cluster using Pulumi with TypeScript, we'll go through several steps:-
Set up the DOKS cluster: We will define a
KubernetesCluster
resource from thedigitalocean
provider. This represents the Kubernetes cluster itself. -
Configure k8s provider to use DOKS kubeconfig: We'll set up a Kubernetes provider that uses the kubeconfig from the created DOKS cluster to ensure that subsequent resources are deployed to that cluster.
-
Deploy Helm chart using the k8s provider: We will create a Helm Chart resource from the
kubernetes
provider, pointing it to theservicemesh-istio-resource
. We'll assume this chart is publicly available; if it's not, additional configuration might be needed for the chart repository credentials.
Let's look at how this translates into a Pulumi program:
import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; import * as pulumi from "@pulumi/pulumi"; // Step 1: Create a DigitalOcean Kubernetes cluster const cluster = new digitalocean.KubernetesCluster("do-cluster", { // Provide the region where the cluster will be located region: digitalocean.Regions.NYC1, // Specify the version of Kubernetes to deploy version: "latest", // Configure the node pool for the cluster nodePool: { size: digitalocean.DropletSlugs.DropletS2VCPU2GB, name: "default-pool", nodeCount: 2, }, }); // Step 2: Configure a Kubernetes provider const k8sProvider = new kubernetes.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig, }); // Step 3: Deploy the Helm chart to the DOKS cluster const istio = new kubernetes.helm.v3.Chart("istio", { // Assuming 'servicemesh-istio-resource' is the name of the Helm chart chart: "servicemesh-istio-resource", // Specify the Helm repo URL if it's not in the default Helm repo fetchOpts: { repo: "https://your-helm-chart-repo.com" }, // If you have custom values, provide them here values: { // Custom values for the Helm chart }, }, { provider: k8sProvider }); // Export the cluster's kubeconfig and the service endpoint export const kubeconfig = cluster.kubeConfigs[0].rawConfig; export const istioEndpoint = istio.getResource("v1/Service", "istio-ingressgateway").status.loadBalancer.ingress[0].ip;
Here is what we're doing in the code above:
-
We start by importing the necessary modules from Pulumi's
digitalocean
andkubernetes
packages. These will help us define and manage resources on DigitalOcean and Kubernetes. -
We then create a new DigitalOcean Kubernetes cluster by invoking
digitalocean.KubernetesCluster
. This takes several parameters, such as the desired region for the cluster, the Kubernetes version, and the configuration of the node pool, which includes the size and count of nodes. -
Once the cluster is created, we set up a Kubernetes provider configured with the kubeconfig from the DOKS cluster. This provider will be used to interact with the cluster and deploy applications to it.
-
Finally, we deploy the
servicemesh-istio-resource
Helm chart by creating an instance ofkubernetes.helm.v3.Chart
. We're assuming that the Helm chart name and repository URL are known. Thevalues
object is where you can pass any custom configuration required for the Istio Service Mesh installation. -
The
kubeconfig
is exported so you can access it outside of Pulumi, for instance, to usekubectl
to interact with the cluster. We also make an educated guess that the Istio Service Mesh exposes an ingress service namedistio-ingressgateway
and export its IP address.
Please make sure to replace the chart name and repository URL with accurate information for Istio or the specific service mesh Helm chart you are using. If your Helm chart needs specific versions or setup, make sure to specify that in the
version
argument andvalues
property.Save the file with a
.ts
extension and deploy with thepulumi up
command. Pulumi will perform these operations, providing a detailed preview and summary of the resources created. If this is what you expect, you can proceed with the actual deployment by confirming the prompt.-