Deploy the fluentd-operator helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the `fluentd-operator` Helm chart on an AWS EKS cluster using Pulumi, we'll perform several tasks:

1. Set up an Amazon EKS cluster.
2. Deploy the `fluentd-operator` Helm chart to the cluster.

### Setting Up the EKS Cluster
First, we need an EKS cluster to deploy our Helm chart onto. Here's an outline of what we'll do:

- **Create an EKS cluster**: We'll create an EKS cluster using Pulumi's EKS package which simplifies the creation of the cluster and default node group.
- **Set up a Kubernetes role**: This role is used by EKS to create AWS resources like Elastic Load Balancers on your behalf.

### Deploying the Helm Chart
Once the cluster is set up, we'll use Pulumi's Kubernetes provider to deploy the Helm chart:

- **Set up the Pulumi Kubernetes Provider**: This provider allows us to interact with our EKS cluster using the Kubernetes API.
- **Deploy the `fluentd-operator` Helm chart**: We will use the `Chart` resource from Pulumi's Kubernetes provider to deploy the `fluentd-operator` Helm chart.

### The Pulumi Program

Let's create a Pulumi program in TypeScript to set up the EKS cluster and deploy the Helm chart.

```typescript
import * as eks from '@pulumi/eks';
import * as pulumi from '@pulumi/pulumi';
import * as k8s from '@pulumi/kubernetes';
import * as aws from '@pulumi/aws';

// Create an EKS cluster with the default configuration.
const cluster = new eks.Cluster('my-cluster', {});

// Export the cluster's kubeconfig.
export const kubeconfig = cluster.kubeconfig;

// The pulumi Kubernetes provider is used to deploy Helm charts into the EKS cluster.
// This requires access to the kubeconfig.
const provider = new k8s.Provider('k8s-provider', {
    kubeconfig: cluster.kubeconfig.apply(JSON.stringify),
});

// Deploy the fluentd-operator Helm chart to the EKS cluster.
const fluentdOperatorChart = new k8s.helm.v3.Chart('fluentd-operator', {
    chart: 'fluentd-operator',
    // You may need to adjust the version and the repository based on where the chart is hosted.
    // Usually, this is located in a Helm chart repository, you can add the 'repo' key within the args.
    version: 'VERSION', // replace with the actual chart version
    // The values here would be the configuration that the chart accepts.
    // You must replace these values with the necessary configuration unique to the fluentd-operator chart.
    values: { 
       // Configuration values for fluentd-operator chart.
    },
    // Ensure that this Helm chart is installed into the k8s cluster specified by the provider.
    // This references our EKS cluster's provider we defined above.
}, { provider });

// Optionally, if you need to export any of the resources' properties you can do so:
export const fluentdOperatorChartStatus = fluentdOperatorChart.status;
```

### Explanation
- `eks.Cluster`: Creates a new EKS cluster. This will set up the necessary AWS resources for EKS, such as EC2 instances for nodes, an EKS control plane, and associated networking and IAM resources.
- `k8s.Provider`: This initializes the Pulumi Kubernetes provider which allows us to interact with the EKS cluster.
- `k8s.helm.v3.Chart`: This is a resource that lets us deploy Helm charts into a Kubernetes cluster managed by Pulumi. We're using it to deploy the `fluentd-operator` Helm chart. You'll need to find the correct version and potentially add a repository where the chart is located.

Replace `VERSION` with the actual version of the `fluentd-operator` Helm chart you wish to deploy. Also, fill in the `values` with the appropriate configuration based on the Helm chart's requirements. This will usually include setting values like image versions, resource requests and limits, and any other necessary configurations the operator requires.

Remember to configure your Pulumi environment with the necessary AWS credentials and default region. If you have the AWS CLI installed, Pulumi will use its configuration by default.

After you deploy this Pulumi program with `pulumi up`, it will stand up an EKS cluster and deploy the `fluentd-operator` Helm chart onto it. If you need to change any configurations or update versions, modify your Pulumi program and run `pulumi up` again to apply the changes.