Deploy the tks-contract helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy a Helm chart on an OpenShift cluster using Pulumi, you will need to ensure that you have the OpenShift cluster already running and configured to interact with `kubectl`. Pulumi leverages the Kubernetes provider to interact with the Helm charts, which will use your current cluster context as specified by your local kubeconfig file.

The following Pulumi program demonstrates how you can deploy a Helm chart onto an OpenShift cluster. In this example, we are assuming the Helm chart named `tks-contract` is available in a repository and you've added that repository to your Helm local configuration.

As we write this program, I'll explain the structure:

1. We set up the Helm Release, which instructs Pulumi to deploy a chart from a specific repository. The `chart` parameter specifies the name of the chart we want to deploy (`tks-contract` in this case).
2. We set the desired `namespace` for where we want our resources to be created. OpenShift supports Kubernetes namespaces, which allow you to partition your cluster into sub-clusters.
3. The `values` parameter allows you to specify a set of configurations that you wish to override in the default chart values.
4. The `version` parameter is optional and specifies the version of the Helm chart to deploy. If omitted, Pulumi will deploy the latest version.

Please replace `CHART_VERSION`, `NAMESPACE`, `REPOSITORY_URL`, and other placeholders with actual values relevant to your scenario, such as the version of the Helm chart you want to deploy and the namespace you want to deploy to.

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

// Deploy a Helm chart from a remote repository onto the OpenShift cluster
const tksContractChart = new k8s.helm.v3.Chart("tks-contract-chart", {
  chart: "tks-contract",
  version: "CHART_VERSION", // Replace with the chart version you want to deploy
  namespace: "NAMESPACE", // Replace with the namespace you want to deploy to
  fetchOpts: {
    // These options specify the Helm repository details where the `tks-contract` chart is hosted
    repo: "REPOSITORY_URL", // Replace with the Helm repository URL
  },
  // You can provide custom values for the Helm chart by specifying them here
  values: {
    // Replace with key:value pairs of the configuration settings you wish to override
    // For example:
    // image: { repository: "my-custom-image", tag: "v1.0.0" },
    // service: { type: "ClusterIP", port: 80 },
  },
});

// Export the resource name of the deployed Chart
export const chartName = tksContractChart.urn;
```

In the `values` object, make sure to provide any required custom configuration according to the specific needs of the `tks-contract` Helm chart and the specifications of the OpenShift environment you are working with.

Upon running this Pulumi code with the command `pulumi up`, Pulumi will communicate with the OpenShift cluster using your local configuration and perform the deployment of the `tks-contract` chart into the specified namespace.

Finally, we export the `.urn` (Uniform Resource Name) property of the Helm chart which uniquely identifies the deployed resource in Pulumi. This could be helpful if you want to reference this deployment in other parts of your infrastructure code.

Remember to first install the Pulumi CLI, set up your Pulumi project, and authenticate with your OpenShift cluster locally. If you do not have OpenShift-specific CLI tools, ensure that your OpenShift cluster is accessible through `kubectl` by configuring the kubeconfig appropriately.