Deploy the mariadb-imagestreams helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the MariaDB Helm chart on a DigitalOcean Kubernetes service, you will need to complete a few steps. First, you will need to create a Kubernetes cluster on DigitalOcean. Once the cluster is ready, you will use Helm to deploy the MariaDB chart.

Below is a Pulumi program that demonstrates this process using TypeScript. This program creates a new Kubernetes cluster in DigitalOcean and then deploys the MariaDB Helm chart to that cluster.

### Detailed Steps

1. **Create a DigitalOcean Kubernetes Cluster**: We'll use the `digitalocean.KubernetesCluster` resource to provision a new Kubernetes cluster on DigitalOcean. We will specify the region, version, and node pool details, such as the number of nodes and the size of the nodes.

2. **Install the MariaDB Helm Chart**: After setting up the cluster, we will install the MariaDB Helm chart using the `kubernetes.helm.v3.Chart` resource. This resource will be configured with the name of the chart (`mariadb-imagestreams`), and you can also supply additional configuration options for the Helm release through the `values` property if needed.

Here is the Pulumi program:

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

// Create a DigitalOcean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster("do-cluster", {
    // Specify the region for the cluster
    region: "nyc3",
    // Specify the version of Kubernetes to use
    version: "1.21.5-do.0",
    // Define the node pool for the cluster
    nodePool: {
        name: "default",
        size: "s-2vcpu-4gb", // Change the size as needed
        nodeCount: 3,        // Change the count as needed
    },
});

// Define the Kubernetes provider using the cluster kubeconfig
const k8sProvider = new k8s.Provider("k8s-provider", {
    kubeconfig: cluster.kubeConfigs[0].rawConfig,
});

// Deploy the MariaDB Helm chart
const mariadbChart = new k8s.helm.v3.Chart("mariadb-chart", {
    chart: "mariadb",
    // You may need to specify the correct repo or chart version
    fetchOpts: { repo: "https://charts.bitnami.com/bitnami" },
    // Supply additional Helm chart values here
    values: {
        // Example of setting values: these are NOT the actual chart values
        // You will need to check the MariaDB chart documentation for this
        // replication: {
        //     enabled: true,
        //     slaveReplicas: 2
        // },
        // resources: {
        //     limits: {
        //         cpu: "100m",
        //         memory: "256Mi"
        //     },
        //     requests: {
        //         cpu: "100m",
        //         memory: "256Mi"
        //     }
        // },
        // mariadbRootPassword: "my-root-password", // You should secure this
        // mariadbUser: "my-user",
        // mariadbPassword: "my-user-password",
        // mariadbDatabase: "my-database"
    }
}, { provider: k8sProvider });

// Export the cluster's kubeconfig and the Helm chart status
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;
export const mariadbStatus = mariadbChart.status;
```

This program defines a new DigitalOcean Kubernetes cluster along with the MariaDB Helm chart deployment. Remember, to run this Pulumi program, you will need to have Pulumi installed along with the required Pulumi providers for DigitalOcean and Kubernetes.

### Important Notes:

- Before running this program, ensure that you have the necessary access tokens and permissions set up to create resources on DigitalOcean and deploy Helm charts.
- Helm chart values such as `mariadbRootPassword`, `mariadbUser`, `mariadbPassword`, and `mariadbDatabase` should be changed to your desired settings and secured properly.
- Always review the settings and configurations of resources to suit your requirements and budget.
- Make sure to install the `@pulumi/digitalocean` and `@pulumi/kubernetes` npm packages using `npm install` before running the program.
- After you have executed this program with Pulumi, you will need to run `pulumi up` to provision the resources. Once the resources are provisioned, you will receive the kubeconfig required to interact with your Kubernetes cluster.