Deploy the bitwarden helm chart on AWS EKS

Question

Pulumi · Accepted Answer

In this program, we'll create an EKS cluster on AWS and then deploy the Bitwarden Helm chart to it. Pulumi allows us to define both our infrastructure and application resources in coherent, versioned, and reproducible way.

Here's what we'll do step by step:

1. Define an EKS cluster.
2. Deploy the Bitwarden Helm chart to the EKS cluster.

Before running this program, make sure you have the following prerequisites in place:

- AWS account configuration: Ensure your AWS credentials are set up locally for Pulumi to use or make sure you've set up environment variables for AWS.
- Pulumi account and CLI: Sign up for a Pulumi account and install the Pulumi CLI.
- Configure kubectl to interact with the EKS cluster.

Now, let's write the actual Pulumi program in TypeScript:

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

// Create an EKS cluster.
const cluster = new eks.Cluster("my-eks-cluster", {
    desiredCapacity: 2, // desired number of worker nodes
    minSize: 1,        // minimum number of worker nodes
    maxSize: 3,        // maximum number of worker nodes
    instanceType: "t2.medium", // instance size for the worker nodes
});

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

// Create a Kubernetes provider instance using the kubeconfig from the created EKS cluster.
const provider = new k8s.Provider("k8s-provider", {
    kubeconfig: cluster.kubeconfig.apply(JSON.stringify),
});

// Deploy the Bitwarden Helm chart to the EKS cluster using the Kubernetes provider.
const bitwardenChart = new k8s.helm.v3.Chart("bitwarden", {
    chart: "bitwarden",
    version: "1.2.0", // specify the version of the chart, adjust it to the version you need
    fetchOpts: {
        repo: "https://charts.bitwarden.com", // Bitwarden Helm chart repository
    },
}, { provider: provider });

// (optional) Export the URL of the Bitwarden service if it's external.
// Depends on how the service is exposed; may need adjustment based on your configuration.
const bitwardenService = k8s.core.v1.Service.get("bitwarden-svc", pulumi.interpolate`${bitwardenChart.metadata.namespace}/${bitwardenChart.metadata.name}`);
export const bitwardenUrl = bitwardenService.status.loadBalancer.ingress[0].hostname;
```

Explanation:

- We create an EKS cluster with a specified number of worker nodes and an instance type using the `@pulumi/eks` package.
- The kubeconfig for accessing the cluster is exported. You will use this kubeconfig to configure `kubectl` and to communicate with the cluster.
- A `Provider` resource is then created, which is passed the kubeconfig. This tells Pulumi how to communicate with the EKS cluster.
- We then define the Bitwarden Helm chart using `@pulumi/kubernetes` Helm support.
- The `Chart` resource is provided with the URL to the Helm repository hosting the Bitwarden chart.
- Optionally, we try to export the URL for the Bitwarden service. The actual method for obtaining the URL may vary depending on the details of the Helm chart and how Bitwarden is exposed (such as via a LoadBalancer, NodePort, or an Ingress).

Remember to replace `"1.2.0"` with the desired version of the Bitwarden Helm chart and adjust `repo` if it's different or updated. The same goes for any values you would like to customize within the `bitwarden` Helm chart, which can be set in the `values` property (not shown above).

Before and after running the code, you can use the Pulumi CLI to create, update, or destroy resources defined in the program. After deploying the chart, you should be able to access the Bitwarden application once the services are up and running. You might need to set up DNS, ingress controllers, or annotations, depending on how you want to access Bitwarden.