Deploy the shopware helm chart on Linode Kubernetes Engine

Question

Pulumi · Accepted Answer

To deploy the Shopware Helm chart on Linode Kubernetes Engine (LKE), I will guide you through the necessary steps using Pulumi and the Kubernetes provider. Helm charts are collections of pre-configured Kubernetes resources that you can deploy as a single unit. Shopware is an open-source e-commerce platform, and its Helm chart simplifies the process of setting up and running Shopware on a Kubernetes cluster.

Pulumi allows us to define infrastructure using familiar programming languages. In the following TypeScript program, I'll define the necessary resources to deploy an LKE cluster and use a Helm chart to deploy Shopware on it.

First, we need to set up the Linode provider to create a Kubernetes cluster. After the cluster is successfully created, we will use the Kubernetes provider along with Helm charts to deploy Shopware.

Here's how you can achieve this:

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

// Create a Linode Kubernetes Engine (LKE) cluster.
const cluster = new linode.LkeCluster("shopware-cluster", {
    label: "shopware-cluster",
    k8sVersion: "1.20", // Specify the desired Kubernetes version.
    region: "us-central", // Pick the region where you want your cluster.
    tags: ["shopware", "lke"],
    nodePools: [{
        type: "g6-standard-2", // This is the type of node to include in the node pool.
        count: 3, // Number of nodes to deploy.
    }],
});

// Export the kubeconfig for the LKE cluster.
export const kubeconfig = cluster.kubeconfig;

// Create a provider for deploying Helm charts to the new LKE cluster.
const k8sProvider = new k8s.Provider("k8s-provider", {
    kubeconfig: cluster.kubeconfigRaw,
});

// Deploy the Shopware Helm chart
const shopwareChart = new k8s.helm.v3.Chart("shopware", {
    chart: "shopware", // Helm chart to be deployed.
    version: "1.2.3", // Use the version of Shopware Helm chart that you want to deploy.
    namespace: "default", // The Kubernetes namespace to deploy the Helm chart in.
    fetchOpts: {
        repo: "https://helm.my-shopware.io/", // Provide the repository URL where the Shopware Helm chart is located.
    },
}, { provider: k8sProvider });

// Export the public IP address of the Shopware service in case it creates an external LoadBalancer.
const frontendService = shopwareChart.getResource("v1/Service", "default", "shopware-frontend");
export const frontendIp = frontendService.status.apply(s => s.loadBalancer.ingress[0].ip);
```

In the code above, we start by importing the necessary modules from Pulumi's Linode and Kubernetes libraries. We then proceed to create an LKE cluster with a specified Kubernetes version, region, and node configuration.

We export the `kubeconfig` of the cluster to allow you to interact with the cluster using `kubectl` or any other Kubernetes tool that you might use.

We define a Pulumi Kubernetes `Provider` that will use the kubeconfig from our newly created LKE cluster. This provider is required for Pulumi to know which Kubernetes cluster we are targeting when deploying resources.

After setting up the provider, we deploy the Shopware Helm chart using the `k8s.helm.v3.Chart` resource from Pulumi's Kubernetes provider. You will need to specify the correct version and repository URL where the Shopware Helm chart is located.

Finally, we export `frontendIp`, which would point to the public IP address assigned to the Shopware frontend service by Linode if it exposes an external LoadBalancer. You would use this IP to access your Shopware installation from a web browser.

This completes the setup of the Shopware e-commerce platform on an LKE cluster using Pulumi with TypeScript. To run this Pulumi program, save the code to a `index.ts` file, ensure you have Pulumi and the necessary providers installed, and execute `pulumi up`. This command will start the deployment process as defined by the code provided.