1. Deploy the tyk-bootstrap helm chart on Opensshift


    Deploying applications on OpenShift can be achieved with Helm charts. Helm is a package manager for Kubernetes that allows you to define, install, and upgrade even the most complex Kubernetes applications. To deploy the tyk-bootstrap Helm chart on an OpenShift cluster using Pulumi, we will use the Pulumi Kubernetes provider, which enables you to write code to deploy resources to a Kubernetes cluster.

    In the following Pulumi program, we will:

    1. Import the necessary Pulumi and Kubernetes packages.
    2. Treat OpenShift as a typical Kubernetes cluster. This means that, to Pulumi, the OpenShift deployment is a Kubernetes deployment. However, it's important to have the OpenShift cluster configured to interact with kubectl, which Pulumi uses under the hood.
    3. Define a Helm chart resource from the tyk-bootstrap repository.

    Before you run the following program, ensure that you have:

    • Installed Pulumi CLI and set up your OpenShift cluster access with kubectl.
    • Authenticated to your OpenShift cluster and correctly set your current context to point to the OpenShift cluster where you want to deploy the Helm chart.

    Now, let's take a look at how the Pulumi TypeScript program would look:

    import * as k8s from "@pulumi/kubernetes"; // Replace the following placeholders with the appropriate values. const openShiftClusterName = "<YOUR_OPENSHIFT_CLUSTER_NAME>"; const namespace = "<YOUR_NAMESPACE>"; // The namespace where you want to deploy the Helm chart. const chartName = "tyk-bootstrap"; const chartVersion = "<CHART_VERSION>"; // Specify the version of the chart you want to deploy. const repoUrl = "<HELM_CHART_REPO_URL>"; // The URL of the Helm repository containing the tyk-bootstrap chart. // Create a new Kubernetes Helm Chart in the designated namespace. const tykBootstrapChart = new k8s.helm.v3.Chart(chartName, { chart: chartName, version: chartVersion, namespace: namespace, fetchOpts: { repo: repoUrl, }, }, { provider: new k8s.Provider("k8s-provider", { context: openShiftClusterName }) }); // Export the name of the Chart. This could be used to look up the chart after deployment // or when integrating with other resources that may depend on this chart. export const helmChartName = tykBootstrapChart.metadata.apply(m => m.name);

    In this Pulumi program:

    • We import the Kubernetes plugin (@pulumi/kubernetes) which allows us to interact with Kubernetes resources, including Helm charts.
    • We define values for the cluster name, namespace, chart name, and repository URL. You should fill in these placeholders with the actual values appropriate for your OpenShift deployment.
    • We create an instance of a Helm chart using new k8s.helm.v3.Chart, specifying the chart we want to deploy, the namespace to deploy it in, and the repository where the Helm chart can be found.
    • We use an optional argument { provider: ... } to specify the OpenShift cluster where we want to deploy the chart. Ensure your Pulumi configuration is set to point to the correct Kubernetes context or replace the provider information with the relevant details for your setup.

    Make sure to supply the actual chart version and repository URL in the placeholders for chartVersion and repoUrl. If you don't have these details, you can find them by searching the Helm repository that hosts the tyk-bootstrap chart or by visiting the chart's home page.

    Once you have filled in the correct details and run this program with Pulumi, it will deploy the tyk-bootstrap Helm chart to your OpenShift cluster. To see the status of your deployment, you can use OpenShift's web console or the kubectl CLI tool with commands like kubectl get pods -n <namespace> and kubectl describe helmchart <chart-name> to inspect the deployed resources.