1. Deploy the Wordpress helm chart on Rancher


    Deploying a Helm chart on Rancher using Pulumi involves several steps, which include setting up a Rancher-managed Kubernetes cluster and then deploying the chart using the rancher2 Pulumi provider. Below I will provide a detailed guide on how to execute these steps using Pulumi's TypeScript SDK.


    Before you begin, you should have the following prerequisites in place:

    1. Pulumi CLI Installed: Make sure you have the Pulumi CLI installed. If not, please follow the installation guide.
    2. Rancher Server Ready: You need to have access to a Rancher server with the necessary permissions to create clusters and workloads.
    3. Pulumi Account: You'll need a Pulumi account to save and manage your states. Sign up for free here.
    4. Rancher2 Provider Setup: The rancher2 Pulumi provider plugin should be configured with credentials to communicate with your Rancher server. This typically involves setting the RANCHER_URL, RANCHER_ACCESS_KEY, and RANCHER_SECRET_KEY environment variables.

    Setup the Rancher2 Provider

    First, you will need to set up the rancher2 provider in your Pulumi program. You can do this by using the pulumi.Config class to retrieve necessary configuration values that will be initialized as environment variables.

    Define the Rancher Kubernetes Cluster

    Then, you can use the rancher2.Cluster resource to create a new Kubernetes cluster managed by Rancher. With Pulumi, a resource instance represents an actual instance of the resource which will be provisioned on running pulumi up.

    Deploy WordPress Helm Chart

    After you have a Kubernetes cluster ready, you can deploy applications using Helm charts with the rancher2 provider. The rancher provider supports deploying Helm charts through its AppsV1 resource. You can specify the necessary details for the Wordpress chart, such as the name, namespace, and chart values.

    Now, let's write the TypeScript code for these steps.

    import * as pulumi from "@pulumi/pulumi"; import * as rancher2 from "@pulumi/rancher2"; // Set up a Pulumi program configuration, where you might store sensitive settings const config = new pulumi.Config(); // For example, to create a Rancher2 Cluster, you could use the following configuration values // Note: Replace these placeholder values with your actual data. const rancherUrl = config.requireSecret("rancherUrl"); // Rancher Server URL const accessKey = config.requireSecret("accessKey"); // Your Rancher Access Key const secretKey = config.requireSecret("secretKey"); // Your Rancher Secret Key // Set up the Rancher2 provider using the credentials obtained from the config const rancher2Provider = new rancher2.Provider("rancher-provider", { apiUrl: rancherUrl, accessKey: accessKey, secretKey: secretKey, }); // Here we create a new Kubernetes cluster managed by Rancher const cluster = new rancher2.Cluster("my-wordpress-cluster", { // Configure your cluster as needed rkeConfig: { // Note: The actual configuration might vary based on your Rancher setup and the Kubernetes version being used }, // More settings ..., }, { provider: rancher2Provider }); // After the cluster is ready, deploy WordPress Helm chart const wordpressApp = new rancher2.AppV2("wordpress", { clusterId: cluster.id, namespace: "default", repoName: "stable", // Assuming 'stable' repo is configured in your Rancher server chartName: "wordpress", chartVersion: "9.0.3", // Use the version of the chart you want to deploy values: ` image: repository: bitnami/wordpress tag: 5.7.1-debian-10-r0 # ... other chart values `, }, { provider: rancher2Provider, dependsOn: [cluster] }); // Export the cluster's kubeconfig export const kubeconfig = cluster.kubeConfig;


    In the code above:

    1. We create a Pulumi project configuration to securely handle sensitive values using config.requireSecret.
    2. We instantiate the rancher2.Provider with the necessary credentials, pointing at the target Rancher server.
    3. We define a Rancher Cluster resource, specifying any necessary RKE (Rancher Kubernetes Engine) settings. You will need to fill this out based on the details of your Rancher setup.
    4. We create an AppV2 resource for the WordPress Helm chart. The clusterId is derived from the cluster resource, and we specify the chart details including the repository, name, and version.

    You'll need to fill in details specific to your Rancher setup, especially within rkeConfig since this dictates how your Kubernetes nodes will be provisioned.

    Running the Program

    To run the program, navigate to the directory containing your Pulumi program and run:

    pulumi up

    This command will provision the cluster as defined and then deploy the specified WordPress Helm chart. The output will provide details of the resources created and the kubeconfig needed to interact with your Kubernetes cluster directly.