Deploy the logrotate helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy the `logrotate` Helm chart on an OpenShift cluster, you'll need to use the `kubernetes.helm.v3.Chart` resource from Pulumi's Kubernetes provider. This provider allows you to declare Kubernetes resources using Pulumi's infrastructure-as-code approach. I'll guide you through setting this up in TypeScript.

Before we start writing the code, make sure you have the following prerequisites:

1. Pulumi CLI installed
2. `kubectl` configured to connect to your OpenShift cluster
3. Helm chart details for `logrotate`, including its repository URL and any necessary Helm values you wish to customize.

Now, let's write the program. You will need to install the necessary Pulumi package for Kubernetes if you haven't already. You can do so by running `npm install @pulumi/kubernetes`.

Here is the TypeScript program that accomplishes the deployment:

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

// Create a Kubernetes provider instance that uses the current context from your kubeconfig file
const provider = new k8s.Provider("openshift", { kubeconfig: k8s.config.tryFindKubeconfig() });

// Define the repository where the logrotate Helm chart is located
const logrotateChartRepo = "https://charts.bitnami.com/bitnami";

// Specify the name of the Helm chart and the version
const logrotateChartName = "logrotate";
const logrotateChartVersion = "x.y.z"; // Replace with the specific version you want to install

// Define the settings for the logrotate Helm chart installation
// Customize the 'values' object as needed based on your helm chart's configurable options
const logrotateHelmChart = new k8s.helm.v3.Chart("logrotate", {
    chart: logrotateChartName,
    version: logrotateChartVersion,
    fetchOpts: { 
        repo: logrotateChartRepo 
    },
    // Replace the following with your custom configuration values
    values: {
        // Example values, these will depend on your logrotate Helm chart's values
        image: {
            repository: "bitnami/logrotate",
            tag: "latest",
        },
        schedule: "* * * * *",
    },
}, { provider });

// Export the name of the chart deployment
export const chartName = logrotateHelmChart.metadata.apply(m => m.name);
```

### Explanation

- We import the Kubernetes package from Pulumi which allows us to interact with Kubernetes resources.
- We initialize a Pulumi Kubernetes `Provider` to interact with our OpenShift cluster. The provider uses your current Kubernetes context by default.
- We define a constant that holds the repository URL of the `logrotate` Helm chart.
- We specify the Helm chart name and version. The version must be defined as per the chart's available version in the repository.
- We create a new `Chart` resource through Pulumi, which represents the `logrotate` Helm chart.
- In the `Chart` resource, we define the `chart` parameter with the name of the chart, `version`, and `fetchOpts` that includes the repository URL.
- We use the `values` property to configure any custom settings required by the Helm chart.
- Finally, we export the name of the chart deployment as a stack output which can be useful for querying the deployment status with `kubectl` or Pulumi.

When you run this Pulumi program with `pulumi up`, it will deploy the `logrotate` Helm chart into your OpenShift cluster.

Please replace `"x.y.z"` with the actual version of the logrotate Helm chart you intend to deploy, and adjust the values as necessary according to your configuration needs.