Deploy the dynamo-db helm chart on Digital Ocean Kubernetes Service
TypeScriptTo deploy the DynamoDB helm chart on the Digital Ocean Kubernetes Service using Pulumi, we will perform several steps:
- Create a Digital Ocean Kubernetes Cluster: This will be the cluster where your applications will be deployed.
- Deploy a Helm Chart: Leveraging the Pulumi resource
kubernetes.helm.sh/v3.Chart
to deploy the DynamoDB helm chart to your Digital Ocean Kubernetes cluster.
Before you begin, ensure you have the following prerequisites:
- Pulumi CLI installed and configured with a new or existing Pulumi project.
- Access to your Digital Ocean account configured with the necessary credentials.
kubectl
installed to interact with the Digital Ocean Kubernetes cluster.- Access to the Helm repository that contains the "dynamo-db" chart. Note that as of my knowledge cut-off in early 2023, there is not an official "dynamo-db" chart, so you would need to specify the repository URL if you are using a custom or third-party chart.
Let's start with the Pulumi program to accomplish the deployment:
import * as pulumi from "@pulumi/pulumi"; import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; // Step 1: Create a Digital Ocean Kubernetes cluster const cluster = new digitalocean.KubernetesCluster("do-cluster", { region: "nyc1", // Choose the region that is best for you version: "latest", // Specify the Kubernetes version nodePool: { name: "default", size: "s-2vcpu-2gb", // Choose the node size that is best for you nodeCount: 2, // Number of nodes in the node pool }, }); // Export the cluster's kubeconfig export const kubeconfig = cluster.kubeConfigs[0].rawConfig; // Use the kubeconfig to create a provider const clusterProvider = new kubernetes.Provider("do-k8s", { kubeconfig: kubeconfig, }); // Step 2: Deploy the helm chart for DynamoDB const dynamoDbChart = new kubernetes.helm.sh.v3.Chart("dynamo-db", { chart: "dynamo-db", // Replace with the URL of the Helm repository that contains the dynamo-db chart fetchOpts: { repo: "https://charts.example.com/", }, }, { provider: clusterProvider }); // Deploying a specific version of the chart or custom values.yaml // would require additional optional parameters within the Chart resource above // such as `version` and `values` // Step 3 (optional): Export the application URL if the Helm chart provides it const dynamoDbService = dynamoDbChart.getResource('v1/Service', 'dynamo-db'); export const appUrl = dynamoDbService.status.loadBalancer.ingress[0].ip;
Here is what each part of the code does:
- We import necessary Pulumi packages for Digital Ocean and Kubernetes.
- We create a Digital Ocean Kubernetes cluster in the specified region with the node size and count using the
digitalocean.KubernetesCluster
resource. - The
kubeconfig
output from the cluster creation is used to set up the Kubernetes provider for Pulumi, which links our deployment to the correct cluster. - We then declare a
Chart
resource to deploy the DynamoDB helm chart. For this example, you would need the URL of the helm repository hosting the DynamoDB chart. - Optionally, if the deployed service exposes an external IP, we export the
appUrl
that can be used to access the chart's deployed service.
Please remember that this code assumes the existence of a helm chart for DynamoDB, which may not actually be available. You need to replace
https://charts.example.com/
with the actual repository containing the DynamoDB chart or with the chart for the database service you wish to deploy.