Deploy the mysql8 helm chart on Rancher

Question

Pulumi · Accepted Answer

Deploying a MySQL 8 Helm chart on a Rancher-managed Kubernetes cluster is a multi-step process that involves the following steps:

Setting up a Rancher-managed Kubernetes cluster.
Adding a Helm chart repository that contains the MySQL chart to the Rancher catalog.
Deploying the MySQL Helm chart to the Kubernetes cluster.

For the purpose of this guide, I am assuming that you have a Rancher-managed Kubernetes cluster ready and have access to it using the Rancher API.

Here is a Pulumi program written in TypeScript that demonstrates how to perform these steps. The program uses the rancher2 Pulumi provider to interact with your Rancher instance.

import * as rancher2 from "@pulumi/rancher2";
import * as k8s from "@pulumi/kubernetes";

// Initialize the Rancher provider with the required configuration
// Make sure to replace the placeholders with your actual Rancher access information.
const rancherProvider = new rancher2.Provider("rancher", {
    apiURL: "https://<your-rancher-server-url>/v3",
    accessToken: "<your-rancher-access-token>",
    secretKey: "<your-rancher-secret-key>",
});

// Add the official Helm stable repository to the Rancher catalog
const helmStableCatalog = new rancher2.CatalogV2("helm-stable", {
    clusterId: "<your-rancher-cluster-id>",
    url: "https://charts.helm.sh/stable", // MySQL 8 is available in this repo
    name: "helm-stable",
}, { provider: rancherProvider });

// Create a Kubernetes Namespace for the MySQL deployment
const namespace = new k8s.core.v1.Namespace("mysql-namespace", {
    metadata: {
        name: "mysql-namespace",
    },
}, { provider: rancherProvider });

// Deploy the MySQL Helm chart within the created namespace
const mysqlChart = new k8s.helm.v3.Chart("mysql", {
    chart: "mysql",
    version: "8.x.x", // Use the version that corresponds to MySQL 8
    namespace: namespace.metadata.name,
    fetchOpts: {
        repo: "https://charts.helm.sh/stable",
    },
}, { provider: rancherProvider });

// Export the name of the namespace and chart
export const mysqlNamespaceName = namespace.metadata.name;
export const mysqlChartName = mysqlChart.metadata.name;

In this code:

We import the rancher2 module, which allows us to work with the Rancher API.
We create a rancher2.Provider instance with our Rancher server's API URL and access credentials.
We add the official Helm chart repository (now located at charts.helm.sh/stable) to our Rancher catalog.
We use the Kubernetes provider from Pulumi to create a new namespace for our MySQL deployment.
We then deploy the MySQL Helm chart to our Rancher-managed Kubernetes cluster within the namespace we created.
Lastly, we export the namespace and chart name for easy reference.

Please ensure to replace the placeholder values such as <your-rancher-server-url> and <your-rancher-cluster-id> with the actual values from your Rancher setup.

Keep in mind that deploying databases with Helm charts may require additional configuration, such as setting persistent storage options and database credentials. You would typically include these settings in the values property of the Chart resource, based on the specifics of the MySQL chart you are using.