Deploy the swaggereditor helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy the Swagger Editor on a Kubernetes cluster using a Helm chart with Pulumi, we are going to use the `kubernetes.helm.v3.Chart` resource from the Kubernetes provider. This resource allows us to deploy Helm charts in a Kubernetes cluster in a declarative way using Pulumi and TypeScript.

Below, you will find a Pulumi program written in TypeScript that performs the following actions:
- It creates a new Helm chart resource named `swagger-editor`.
- It specifies the chart to deploy (`swaggereditor/swaggereditor`) from the specified Helm repo (`https://charts.helm.sh/stable`).
- It sets the release name to `swagger-editor` which is how the deployed resources will be labeled and identified within the Kubernetes cluster.
- It uses the default namespace for deployment.

Please make sure that you have Helm installed on your local machine and that you have access to a Kubernetes cluster where you can deploy the chart.

Here's how the Pulumi program looks:

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

// Create an instance of the Swagger Editor Helm chart.
const swaggerEditorChart = new k8s.helm.v3.Chart("swagger-editor", {
    chart: "swaggereditor/swaggereditor",
    version: "3.35.2", // Replace with the desired chart version
    fetchOpts: {
        repo: "https://charts.helm.sh/stable",
    },
}, { provider: k8sProvider }); // Ensure you have a configured Kubernetes provider

// Export the base URL for the Swagger Editor
export const swaggerEditorUrl = swaggerEditorChart.getResource("v1/Service", "swagger-editor").status.apply(status => {
    if (status.loadBalancer.ingress) {
        // If your service is exposed via a LoadBalancer, use the following:
        return `http://${status.loadBalancer.ingress[0].ip}`;
    } else {
        // If LoadBalancer is not used, you might want to handle exposing the service differently.
        return "Service is not exposed via a LoadBalancer.";
    }
});

```

Explanation:
- First, we import the necessary Pulumi Kubernetes package.
- We create a new Helm chart instance using `new k8s.helm.v3.Chart`. This instance is representative of the Swagger Editor Helm chart.
    - The `chart` argument specifies the Helm chart to be deployed. Here we've used the chart's name `swaggereditor/swaggereditor` which should match what is specified in the Helm repository.
    - The `version` argument specifies the version of the chart to deploy. You should check the Helm repository for the Swagger Editor chart for available versions.
    - The `fetchOpts.repo` argument is the URL of the Helm repository containing the desired chart.
- We assume that you have a Kubernetes provider already configured, since `k8sProvider` is referenced but not defined in the code. The provider is used to indicate to Pulumi which Kubernetes cluster to target for deployment.
- Finally, we export the URL for accessing the deployed Swagger Editor. It's commented to reflect that one would need to adjust this based on how the service is exposed (e.g., using a LoadBalancer, NodePort, etc.).

After deploying this code with Pulumi, you would access the Swagger Editor through the returned `swaggerEditorUrl`, provided the relevant Kubernetes service is indeed exposed via a LoadBalancer. If not, you would address exposing the service according to your cluster setup.