Deploy the servicemesh-k8ssandra-resource helm chart on Digital Ocean Kubernetes Service
TypeScriptTo deploy the
servicemesh-k8ssandra-resource
helm chart on the DigitalOcean Kubernetes Service using Pulumi, you'll need to follow these steps:- Setting up DigitalOcean Kubernetes Cluster:
- First, you need to create a Kubernetes cluster in DigitalOcean where your helm chart will be deployed. This is done by using the
digitalocean.KubernetesCluster
resource.
- First, you need to create a Kubernetes cluster in DigitalOcean where your helm chart will be deployed. This is done by using the
- Deploying Helm Chart:
- Once the Kubernetes cluster is ready, you will use the
kubernetes.helm.v3.Chart
resource to deploy theservicemesh-k8ssandra-resource
helm chart onto the cluster. This Pulumi resource manages the Helm chart's deployment just ashelm
CLI does but through Pulumi's infrastructure as code approach.
- Once the Kubernetes cluster is ready, you will use the
Here is a step-by-step TypeScript program that accomplishes this:
import * as pulumi from '@pulumi/pulumi'; import * as digitalocean from '@pulumi/digitalocean'; import * as k8s from '@pulumi/kubernetes'; import * as random from '@pulumi/random'; // Generate a strong password for the Kubernetes cluster, you may also define it explicitly. const password = new random.RandomPassword("password", { length: 16, special: true, }).result; // Create a DigitalOcean Kubernetes Cluster const cluster = new digitalocean.KubernetesCluster("do-cluster", { region: digitalocean.Regions.NYC1, // Choose the region that is closest to you or your users version: "1.21.5-do.0", // Use the version that suits your needs nodePool: { name: "default", size: digitalocean.DropletSlugs.DropletS2VCPU2GB, // Choose the size that fits your expected workload nodeCount: 1, // Start with 1 node, can be scaled as needed }, }); // Get the kubeconfig from the created DigitalOcean Kubernetes Cluster const kubeconfig = cluster.kubeConfigs[0].rawConfig; // Create a provider for the above Kubernetes cluster const k8sProvider = new k8s.Provider("k8s-provider", { kubeconfig: kubeconfig, }); // Define the servicemesh-k8ssandra-resource Helm chart and its release. const chartName = "servicemesh-k8ssandra-resource"; const servicemeshChart = new k8s.helm.v3.Chart(chartName, { chart: chartName, version: "0.1.0", // Specify the exact chart version you want to deploy // Values for the Helm chart are set according to your needs. values: { service: { type: "ClusterIP", }, // Add any other required values here }, }, { provider: k8sProvider }); // Export the cluster's kubeconfig and the Helm chart status export const kubeconfigOutput = pulumi.secret(kubeconfig); export const isHelmChartDeployed = servicemeshChart.status; // Access the cluster using kubectl or any other K8s management tool with the exported `kubeconfig`.
Explanation:
- We first import the necessary Pulumi packages for interacting with DigitalOcean, Kubernetes resources, and generating random passwords.
- A DigitalOcean Kubernetes cluster is created via
digitalocean.KubernetesCluster
, provisioning it in the regionNYC1
with the Kubernetes version1.21.5-do.0
, inside which the helm chart will be deployed. - We retrieve the
kubeconfig
of the created Kubernetes cluster which is needed to communicate with the cluster. - A Pulumi Kubernetes provider
k8s.Provider
is instantiated to use thekubeconfig
, enabling Pulumi to deploy resources onto that cluster. - We define the helm chart deployment using the
k8s.helm.v3.Chart
class, providing it thechartName
, the chartversion
, and customvalues
that might be necessary for the chart deployment, all in the context of the created Kubernetes provider. - Finally, we export the computed Kubernetes
kubeconfig
and the helm chart deployment status for use outside of Pulumi.
Next Steps:
- Install Pulumi and set up your Pulumi account.
- Install Node.js and the Yarn package manager.
- Set up
doctl
, the DigitalOcean command-line tool, and authenticate it with your DigitalOcean account. - Create a new Pulumi TypeScript project and add the above code in the
index.ts
file. - Run
pulumi up
to execute the Pulumi code and deploy the Kubernetes cluster and helm chart. - Use the exported kubeconfig to interact with your cluster via kubectl or any Kubernetes management tools.
- Setting up DigitalOcean Kubernetes Cluster: