Deploy the zookeeper-3Nodes helm chart on Opensshift
TypeScriptTo deploy the
zookeeper-3Nodes
Helm chart on an OpenShift cluster using Pulumi, we'll use thekubernetes.helm.v3.Chart
resource which allows us to deploy Helm charts to a Kubernetes cluster, including OpenShift. Helm is a package manager for Kubernetes, and it uses charts to define, install, and upgrade even the most complex Kubernetes applications. Thezookeeper-3Nodes
is such a chart which you can obtain from a Helm repository or a specific chart source.Here's how you do it:
-
The first step is to ensure you have access to an OpenShift cluster. For Pulumi to communicate with your OpenShift cluster, you need to have
kubectl
configured on your machine. -
You'll then create a Pulumi TypeScript program that defines a
kubernetes.helm.v3.Chart
resource which references thezookeeper-3Nodes
Helm chart. Pulumi will utilize your local kubectl configuration to deploy the Helm chart to the OpenShift cluster.
Below is a TypeScript program that demonstrates this process:
import * as kubernetes from "@pulumi/kubernetes"; // Define the settings for our Helm deployment. const zookeeperChart = new kubernetes.helm.v3.Chart("zookeeper-3Nodes", { // You must specify the repository or chart source where the zookeeper-3Nodes chart is located, // along with the chart version you want to deploy. // For example: // repo: "https://charts.helm.sh/stable", chart: "zookeeper-3Nodes", // version: "x.y.z", // specify the exact chart version // Here you can specify a namespace where this chart will be deployed. namespace: "default", // If the zookeeper-3Nodes chart requires any custom values, provide them here. // values: { // key: "value", // }, }); // Export the frontend service's address. export const zookeeperService = zookeeperChart.getResource("v1/Service", "zookeeper-3Nodes");
Please make sure to replace the placeholder values for the
repo
andversion
with actual values which point to where yourzookeeper-3Nodes
Helm chart is located and the desired version you wish to use.Explanation:
- We import the
@pulumi/kubernetes
package allowing us to create Kubernetes resources using Pulumi. - We create a new Helm chart resource using
kubernetes.helm.v3.Chart
. The first parameter is the name of the resource in Pulumi, and the second parameter is the configuration for our Helm chart. - With the
chart
property, we specify the name of the chart to deploy - "zookeeper-3Nodes". - The
namespace
property is optional; if not specified, Pulumi uses the "default" namespace. Replace it with the namespace you wish to deploy to if necessary. - If our chart required any specific values to customize the deployment, these would go in the
values
object. - Lastly, to interact with the deployed services, we export the address of the created service.
You would run this program using the Pulumi CLI. This includes running
pulumi up
to preview and then perform the deployment. When Pulumi finishes its deployment, thezookeeperService
export will provide you with the necessary information to interact with ZooKeeper.Keep in mind that your OpenShift cluster should have Helm installed and be able to pull Helm charts from the repository where
zookeeper-3Nodes
is hosted. Additionally, you need to be authenticated against the cluster with sufficient permissions to deploy Helm charts.-