Deploy the gitlab-backup helm chart on Oracle Kubernetes Engine (OKE)

Deploying GitLab-Backup Helm Chart on OCI's OKE

Deploying a Helm chart to a Kubernetes cluster involves several steps. First, you need a running Kubernetes cluster. In this case, we are targeting Oracle Kubernetes Engine (OKE). This program assumes that you have already set up and configured your Oracle Cloud Infrastructure (OCI) account and have the necessary access to create and manage Kubernetes clusters.

Then you need to install the Helm CLI on your local machine and configure it to interact with your Kubernetes cluster. Pulumi has resources that allow you to manage Helm releases. Specifically, we will use the kubernetes.helm.v3.Release resource to deploy the gitlab-backup Helm chart.

Below is the TypeScript code for deploying the GitLab backup Helm chart to OKE. This code does not include setting up the OKE cluster itself, which is a separate process.

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

// The name of the Helm chart you wish to install.
const chartName = "gitlab-backup";
// The repository where your chart is located.
const chartRepo = "https://charts.gitlab.io/";
// Namespace where the chart will be installed.
const targetNamespace = "gitlab-backup";

// Create a Helm Release for the gitlab-backup chart.
const gitlabBackupRelease = new k8s.helm.v3.Release("gitlab-backup-release", {
    chart: chartName,
    repositoryOpts: {
        repo: chartRepo,
    },
    namespace: targetNamespace,
    // Values to pass to the Helm chart. These values would be specific to the
    // gitlab-backup chart's configurations documented in its 'values.yaml'.
    values: {
        // Place your chart's configuration here. For example:
        // persistentVolume: {
        //   storageClass: "standard",
        //   size: "10Gi"
        // },
    },
    // For more complex charts, you may need to specify the version.
    version: "1.2.3",
});

// If needed, you can use the 'gitlabBackupRelease.status' to perform further
// operations when the status indicates that the chart has been successfully deployed.

export const releaseName = gitlabBackupRelease.status.name;
export const releaseNamespace = gitlabBackupRelease.status.namespace;
export const releaseVersion = gitlabBackupRelease.status.version;

Before running this program, ensure that the Pulumi CLI and Helm CLI are installed, Pulumi is configured with the proper cloud provider (OCI, in this case), and your kubeconfig is set up correctly.

The kubernetes.helm.v3.Release resource is a representation of a Helm release. When Pulumi applies this program, it will use the Helm CLI to install the specified chart into your Kubernetes cluster. The values field within the resource allows you to specify a custom configuration for your Helm release. This needs to be adjusted based on the specific Helm chart's requirements found in its values.yaml.

The export statements at the end of the code block are Pulumi's way of providing output after the deployment. You can run pulumi stack output to see the values of these exported properties. These might include the release name, namespace, and version, which can be useful for managing or accessing the deployment post-deployment.

After running this code with Pulumi (by running pulumi up), you should have a new Helm release for GitLab backup in your OKE cluster. Remember to replace placeholder values like chart version or configuration values with actual values that correspond to your particular setup and use case.