Deploy the grafana-agent-flow-mixin helm chart on AWS EKS

Question

Pulumi · Accepted Answer

In order to deploy the `grafana-agent-flow-mixin` Helm chart on AWS EKS, we need to follow these general steps:
1. **Create an EKS Cluster**: Establish a Kubernetes environment on AWS EKS where our Helm chart will be deployed.
2. **Install Helm**: Ensure that Helm, a package manager for Kubernetes, is installed in our EKS cluster.
3. **Add Grafana Helm Repository**: Add the Helm repository that contains the `grafana-agent-flow-mixin` chart.
4. **Deploy the Helm Chart**: Use Helm to deploy the `grafana-agent-flow-mixin` chart onto the EKS cluster.

Below I will guide you through a Pulumi program that automates these steps. The program is written using TypeScript, which is a strongly-typed superset of JavaScript, and is commonly used in Pulumi codebases. We will use Pulumi's AWS and Kubernetes providers to provision the EKS cluster and deploy the Helm chart, respectively.

First, let's start with setting up the EKS cluster.

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

// Create an EKS cluster with the default configuration.
// Ref: https://www.pulumi.com/docs/guides/crosswalk/aws/eks/
const cluster = new awsx.eks.Cluster('my-cluster', {
    desiredCapacity: 2,  // Set the desired number of worker nodes
    minSize: 1,          // Set the minimum number of worker nodes
    maxSize: 3,          // Set the maximum number of worker nodes
});

// A K8s Provider to handle Helm chart deployment after the cluster is ready.
const k8sProvider = new k8s.Provider('k8s-provider', {
    kubeconfig: cluster.kubeconfig.apply(JSON.stringify),
});

// Output the kubeconfig to connect to the EKS cluster
export const kubeconfig = cluster.kubeconfig;
```

With the EKS cluster set up, we can now proceed to add the Grafana Helm repository and install the Helm chart. We will use the `k8s.helm.v3.Chart` class from Pulumi's Kubernetes provider to accomplish this.

```typescript
// Add the Grafana Helm repository
const grafanaRepo = new k8s.helm.v3.Repository('grafana-repo', {
    name: 'grafana',
    url: 'https://grafana.github.io/helm-charts',
}, { provider: k8sProvider });

// Deploy the grafana-agent-flow-mixin Helm chart.
const grafanaAgentFlowMixinChart = new k8s.helm.v3.Chart('grafana-agent-flow-mixin', {
    chart: 'grafana-agent-flow-mixin',
    version: '1.2.3',  // replace with the actual chart version you want to deploy
    fetchOpts: {
        repo: grafanaRepo.url,
    },
    values: {
        // Specify your Helm chart values here
    },
}, { provider: k8sProvider });
```

After defining these Pulumi resources, running the program will create an AWS EKS cluster and deploy the `grafana-agent-flow-mixin` Helm chart on it. You need to replace `'1.2.3'` with the version of the chart you wish to deploy. Also fill in the `values` field with any custom values you need for your Helm chart configuration.

Remember that to run the Pulumi program, you will need to have Pulumi installed and configured for TypeScript, as well as AWS credentials set up to create resources in EKS.

Once deployed, this program will:

- Automatically set up an EKS cluster with AWS's best defaults.
- Install the `grafana-agent-flow-mixin` Helm chart into your cluster, which will be set up and managed as specified in the Helm chart's documentation.

The `kubeconfig` output can be used to interact directly with your Kubernetes cluster using tools like `kubectl`.

Please note that you may need to configure your Grafana services and AWS permissions before deploying this chart for it to work correctly. Also, ensure that the Helm chart version you specify is available in the Grafana Helm repository.

By using Pulumi, you benefit from the ability to codify, version control, and automate your cloud infrastructure, resulting in more reliable and repeatable deployments.