Deploy the cronjob-backup-jenkins helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy the `cronjob-backup-jenkins` Helm chart on OpenShift using Pulumi, you will primarily be working with the Helm chart resource within the Kubernetes provider. Pulumi allows you to deploy Helm charts into a Kubernetes cluster with a high level of control and customization if needed.

The basic process involves creating an instance of the `Chart` resource and specifying the Helm chart's repository, name, and any custom values you want to apply to the chart. If your Jenkins backup chart requires specific configurations, they will be specified in the `values` object within the `Chart` resource.

Here is a Pulumi program in TypeScript that demonstrates how to deploy a Helm chart named `cronjob-backup-jenkins` into an OpenShift cluster. This example assumes you've already set up your OpenShift cluster and have configured Pulumi to deploy resources into it.

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

// Define the settings for the cronjob-backup-jenkins Helm chart
const cronjobBackupJenkinsChart = new k8s.helm.v3.Chart("cronjob-backup-jenkins", {
    // Specify the Helm chart repository here. Replace with the actual repo URL or name if the chart is in a public repository.
    chart: "cronjob-backup-jenkins",
    // Version of the Helm chart to deploy. Replace with a specific chart version if needed.
    version: "1.0.0",
    // If the chart is located in a custom repository, provide that repository's URL.
    fetchOpts: {
        repo: "https://example.com/helm/charts",
    },
    // Specify namespace if needed, default is 'default'.
    namespace: "jenkins",
    // Provide any custom values to the chart. Replace these with actual values for your backup configuration.
    values: {
        backup: {
            schedule: "0 * * * *", // This runs the backup every hour, change accordingly.
            // Other backup specific configurations can go here.
        },
        // Any additional configurations related to OpenShift specifics, RBAC, or other settings go here.
    },
}, { provider: /* A k8s.Provider pointing to your OpenShift cluster */ });

// Optional: Export the Helm release status
export const releaseStatus = cronjobBackupJenkinsChart.status;

// Run `pulumi up` to deploy the Helm chart.
```

In this program:

- The `@pulumi/kubernetes` library is imported to work with Kubernetes resources.
- A new Helm chart resource is instantiated with the `Chart` constructor from the `@pulumi/kubernetes/helm/v3` module.
- The `chart` property is the name of the Helm chart.
- The `version` property sets the specific version of the Helm chart you want to deploy.
- `fetchOpts.repo` specifies the Helm chart's repository URL.
- The `namespace` property is set to `"jenkins"`, which should be replaced with the namespace where you want to install your Helm chart.
- `values` object provides custom configurations that the Helm chart accepts. Here you might specify the schedule for the CronJob and any backup settings your chart uses.
- The optional `provider` property accepts an instance of a Kubernetes provider if you need to point to a specific OpenShift cluster. If your Pulumi environment is already configured for the target cluster, this can be omitted.
- Lastly, the `releaseStatus` export can be used to track the release status of our Helm chart.

Please ensure that you replace the placeholder values such as the repository URL, chart version, or any configurations specified in `values` with the information that applies to your scenario. This program assumes you have already set up your Pulumi environment to target your OpenShift cluster and that you have the necessary permissions to deploy resources.

Before running `pulumi up`, you'll need to install the Pulumi CLI and set up your Pulumi project specific to your environment (if you haven’t already). You would typically use `pulumi new` to create a new project and then place the above code into a file (e.g., `index.ts`) within this project.

This program should be run from a command line where the Pulumi CLI is accessible, and it will perform the deployment of the specified chart into your OpenShift cluster. Make sure to review any output and confirm the changes before letting Pulumi apply the deployment.