1. Deploy the pubsubplus-openshift helm chart on Oracle Kubernetes Engine (OKE)


    To deploy the pubsubplus-openshift Helm chart on Oracle Kubernetes Engine (OKE), you would need the OCI (Oracle Cloud Infrastructure) provider for Pulumi and the Kubernetes provider to interact with the Kubernetes API. We will use the oci.ContainerEngine.Cluster resource to create a Kubernetes cluster, and then we'll deploy the Helm chart using the kubernetes.helm.v3.Chart.

    Here's what you need to do step-by-step:

    1. Set up an OKE cluster: Use the oci.ContainerEngine.Cluster resource to provision a cluster on Oracle Cloud Infrastructure. You need to configure it with the required properties, such as the compartment ID, VCN ID, and Kubernetes version.

    2. Install Helm Chart: Once the cluster is up and running, you can use the kubernetes.helm.v3.Chart resource to deploy the pubsubplus-openshift Helm chart. To do this, you need to have the chart information such as the repository URL and the chart name.

    3. Configure Pulumi Providers: You need to set up both OCI and Kubernetes providers in Pulumi. For the Kubernetes provider, you will need to obtain the kubeconfig from the created OKE cluster to interact with it.

    Let's dive into the TypeScript code that would help you to achieve the desired infrastructure:

    import * as pulumi from '@pulumi/pulumi'; import * as oci from '@pulumi/oci'; import * as k8s from '@pulumi/kubernetes'; // Create an OKE cluster const cluster = new oci.ContainerEngine.Cluster('my-cluster', { compartmentId: '<compartment-id>', vcnId: '<vcn-id>', kubernetesVersion: 'v1.18.10', options: { // Specify additional options as needed. }, // Other required properties... }); // Obtain the kubeconfig of the newly created cluster. const kubeconfig = pulumi.all([cluster.id, cluster.name, cluster.compartmentId]).apply(([id, name, compartmentId]) => { // Make API call to OCI to fetch kubeconfig content... return `kubeconfig-content-for-cluster-${name}`; }); // Set up the Kubernetes provider with the kubeconfig from the OKE cluster. const k8sProvider = new k8s.Provider('k8s', { kubeconfig, }); // Deploy the Helm chart to the cluster const pubSubPlusChart = new k8s.helm.v3.Chart('pubsubplus-openshift', { chart: 'pubsubplus-openshift', repo: '<helm-chart-repository>', // Add any custom values file or configurations here. values: { // Include your Helm chart values here. }, }, { provider: k8sProvider }); // Export the Kubernetes cluster name export const clusterName = cluster.name; // Export the chart deployment name export const chartName = pubSubPlusChart.name;

    This Pulumi program initiates an OKE cluster and then uses the Helm chart to deploy the desired app (pubsubplus-openshift). Before you can successfully deploy this, replace placeholders like <compartment-id>, <vcn-id>, and <helm-chart-repository> with the actual IDs and URLs relevant to your Oracle Cloud setup and Helm chart repository.

    Each resource in Pulumi is declared with a class, typically corresponding to a resource in the cloud provider like oci.ContainerEngine.Cluster for an OKE cluster in Oracle Cloud Infrastructure. Then, using the k8s.helm.v3.Chart allows you to deploy Helm charts in a declarative fashion.

    Do note, fetching the kubeconfig from the OCI API is an operation that might need additional setup not covered here, such as setting up the appropriate credentials and API permissions. This is just a placeholder to indicate where you would include the logic to fetch the kubeconfig. Normally, kubeconfig can be fetched via the OCI CLI or Console, and automation with Pulumi might involve calling OCI APIs or temporary storage of kubeconfig content.

    This example assumes you have already configured your credentials for both OCI and Kubernetes, for example by using the OCI CLI configuration file and having it referenced in environment variables or using default Pulumi configuration.

    Lastly, exporting resources like cluster.name and pubSubPlusChart.name at the bottom allows you to access these values easily once the Pulumi program has run, which is helpful for confirming the deployment or for use in subsequent Pulumi programs.