Deploy the dynamo-db helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy a Helm chart for DynamoDB on a Kubernetes cluster using Pulumi, we will utilize the `kubernetes.helm.v3.Chart` resource provided in the Pulumi Kubernetes provider. This resource allows us to install Helm charts in a Kubernetes cluster from a specified repository or a local chart source.

Here's how we do it:

1. **`kubernetes.helm.v3.Chart` Resource**: This will install the chart into your Kubernetes cluster. You need to provide details such as the chart name, version, and any custom values you want to apply to the chart.

2. **`values`**: This is a key-value map specifying the settings for the Helm chart. You can override default chart options by providing your own values. For the DynamoDB Helm chart, you would typically include configurations that suit your specific use case.

Here is the TypeScript program to deploy the DynamoDB Helm chart on Kubernetes with Pulumi:

```typescript
import * as k8s from "@pulumi/kubernetes";

// Create a Helm Chart resource for DynamoDB.
const dynamoDbChart = new k8s.helm.v3.Chart("dynamo-db", {
    // Replace 'repository_uri' with the URI of the repository containing the dynamo-db chart.
    // If the chart is in a public repository, specify the repository URL here.
    repo: "repository_uri",
    chart: "dynamo-db",
    // Specify the version of the chart you want to deploy.
    version: "chart_version",
    // Provide custom values for the helm chart, for instance, you might want to configure resource limits.
    values: {
        // Example of setting resource limits for the deployed pods.
        resources: {
            requests: {
                memory: "1Gi",
                cpu: "500m",
            },
            limits: {
                memory: "2Gi",
                cpu: "1000m",
            },
        },
    },
});

// Export the chart name of DynamoDB as an output.
export const dynamoDbChartName = dynamoDbChart.metadata.name;
```

In this program:

- Replace `'repository_uri'` with the URI of your desired helm chart repository that contains the DynamoDB chart.
- Replace `'chart_version'` with the specific version of the chart you wish to install, if you have a preference. If this is left out, the latest version will be installed by default.
- The `values` block can be customized with settings that are specific to the dynamo-db Helm chart. You will need to refer to the specific Helm chart documentation for allowed values.

Once written, this Pulumi program will define the desired state of your Kubernetes cluster to include the dynamo-db chart. When you run `pulumi up`, Pulumi will perform the necessary actions to reach this desired state, which involves downloading the Helm chart and applying it to your cluster.

Please ensure you have Pulumi and kubectl installed and configured for the Kubernetes cluster where you wish to deploy the DynamoDB Helm chart.