Deploy the kafka-connect-manager helm chart on Opensshift

Question

Pulumi · Accepted Answer

Deploying a Helm chart on an OpenShift cluster using Pulumi involves several steps. You need to have a Kubernetes context configured to communicate with your OpenShift cluster. This is typically done by using the oc CLI tool to log in to your cluster, which configures your kubeconfig file that the Pulumi Kubernetes provider will use to deploy resources.

Next, you would use the Pulumi Kubernetes provider to deploy the Helm chart. Helm charts are packages of pre-configured Kubernetes resources, and in this case, we're looking to deploy a Kafka Connect Manager.

Here is a Pulumi TypeScript program that deploys the Kafka Connect Manager Helm chart to an OpenShift cluster:

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

// Create an instance of the kubernetes provider with OpenShift configuration.
// The provider uses the current context from your kubeconfig.
const openshiftProvider = new k8s.Provider("openshift-k8s", {
    // If needed, specify the kubeconfig and context here. By default, it uses the current context.
    // kubeconfig: "...",
    // context: "your-openshift-context",
});

// Define the Helm chart, version, and any additional values you want to override.
const kafkaConnectManagerChart = new k8s.helm.v3.Chart("kafka-connect-manager", {
    chart: "kafka-connect-manager",
    // Replace `<repo>` with the repository containing your Kafka Connect Manager Helm chart.
    // For example "stable" if your chart is part of the Helm stable repo, or the URL to your Helm repo.
    repo: "<repo>",
    version: "1.0.0", // Specify the chart version you want to deploy
    // You can specify the namespace if you have a specific one, otherwise, it uses 'default'.
    namespace: "kafka",
    // Add any custom values to the `values` field below.
    values: {
        /* 
        Some possible values you might set:
        replicaCount: 1,
        image: {
            repository: "confluentinc/cp-kafka-connect",
            tag: "latest"
        },
        */
    },
}, { provider: openshiftProvider });

// Export the desired resource properties.
export const kafkaConnectManagerName = kafkaConnectManagerChart.getResourceProperty("v1/Service", "kafka-connect-manager", "metadata.name");

This program is doing the following:

It imports the Pulumi Kubernetes package, which is used to interact with your Kubernetes cluster in a Pulumi program.
It creates an instance of the Kubernetes Provider, which tells Pulumi how to communicate with your OpenShift cluster. By default, it uses the kubeconfig from your local machine, but you can specify a different kubeconfig or context.
It deploys the Kafka Connect Manager Helm chart using the k8s.helm.v3.Chart resource. You need to replace <repo> with the actual repository where your Helm chart is stored. The chart's version and additional configuration values can be set in the version and values fields.
Finally, it exports the name of the Kafka Connect Manager service, which you can use to connect to the deployed Kafka Connect instances.

Before running this Pulumi program, please ensure that you:

Have Pulumi installed and configured with appropriate credentials.
Have kubeconfig properly set to connect to your OpenShift cluster (usually done using oc login command).
Know the repository URL for the Kafka Connect Manager Helm chart you want to deploy.
Have any necessary Helm chart values that you may need to override the defaults.

To run this Pulumi program:

Save the code to a index.ts file in an empty directory.
Run pulumi up within that directory in your terminal.
Review the proposed changes and if they're acceptable, confirm the deployment.

After the deployment, you can check your OpenShift cluster to verify that the resources have been created as expected.