Deploy the tyk-oss helm chart on Opensshift

Question

Pulumi · Accepted Answer

Deploying a Helm chart on an OpenShift cluster involves several key steps. OpenShift, being a Kubernetes distribution, supports Helm, a package manager for Kubernetes applications, which allows you to define, install, and upgrade Kubernetes applications.

In the context of Pulumi, we will use the kubernetes package to deploy a Helm chart on OpenShift. The Chart resource from Pulumi’s Kubernetes provider allows us to deploy packaged Helm charts into a Kubernetes cluster.

Here's how you would do it in TypeScript:

First, ensure you have access to an existing OpenShift cluster.
You'll need to have kubectl configured to communicate with your OpenShift cluster. Pulumi uses the same configuration.
Install the necessary Pulumi CLI and the Kubernetes SDK for Pulumi if they are not already installed.

Now let's dive into the Pulumi program:

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

// Create a Kubernetes provider instance that targets the OpenShift cluster.
const openshiftProvider = new kubernetes.Provider("openshift", {
    // You should have your kubeconfig file pointing to the OpenShift cluster.
    // Pulumi automatically uses the current context in kubeconfig.
    // Ensure that the current context is set to your OpenShift cluster.
});

// Deploy the tyk-oss Helm chart into the OpenShift cluster using the Pulumi Kubernetes provider.
const tykOssChart = new kubernetes.helm.v3.Chart("tyk-oss", {
    // Specify the repository and chart details for tyk-oss.
    chart: "tyk-oss",
    version: "<Specify Desired Chart Version>",  // Replace with the specific chart version you want to deploy
    fetchOpts: {
        repo: "https://helm.tyk.io/public/helm/charts/",  // Assuming this is the correct repository for tyk-oss Helm chart
    }
}, { provider: openshiftProvider });

// Export the base URL for Tyk dashboard, so we can easily access it later.
export const tykDashboardUrl = tykOssChart.getResourceProperty("v1/Service", "tyk-dashboard", "status").apply(status => {
    const ingress = status.loadBalancer.ingress[0];
    return ingress.ip || ingress.hostname;
});

This code does the following:

Imports the necessary Pulumi Kubernetes package.
Creates a Pulumi Kubernetes provider that targets your configured OpenShift cluster.
Deploys the tyk-oss Helm chart using that provider by creating a new instance of Chart. It specifies the chart and version you want to install, along with the repository where the chart is located.
Exports the URL for the Tyk dashboard service, assuming that the service is of type LoadBalancer and set up to create an external endpoint.

Note: You may need to customize the chart properties with the appropriate values or configurations specific to the tyk-oss chart. Replace "<Specify Desired Chart Version>" with the actual version number of the Helm chart you want to deploy. If you don't specify a version, the latest version will be installed by default.

To run this code with Pulumi:

Save the code to a file with a .ts extension (for example, deploy-tyk-oss.ts).
Run pulumi up to execute the code and deploy the tyk-oss chart onto your OpenShift cluster.
Ensure that the exported URL can be resolved and accessed. Depending on your OpenShift cluster setup, you might need to configure Ingress or other networking resources to properly expose the Tyk dashboard.

Key Points:

You must have appropriate permissions to deploy to the OpenShift cluster.
Ensure that the Tyk OSS Helm chart is compatible with your version of OpenShift.
If you encounter any issues with deploying or accessing the Tyk dashboard, the problem might relate to how networking and load balancing are configured in your OpenShift environment. Consult the Tyk OSS Helm chart documentation and your OpenShift documentation for troubleshooting.
Always review the Helm chart values and understand the settings before deploying it to your production environment.