Deploy the redis-ui helm chart on Opensshift
TypeScriptTo deploy the
redis-ui
Helm chart on an OpenShift cluster using Pulumi, you'll need to follow a few steps. First, ensure that you have access to an OpenShift cluster and have thekubectl
command-line tool configured to communicate with it.You'll be using the
@pulumi/kubernetes
package because it provides the necessary resources to deploy Helm charts on a Kubernetes cluster, including OpenShift. TheChart
resource in the Pulumi Kubernetes provider is responsible for deploying Helm charts.Below is a Pulumi TypeScript program that deploys the
redis-ui
Helm chart on OpenShift:-
Set up a Pulumi project: If you have not already done so, create a new Pulumi project using
pulumi new kubernetes-typescript
. -
Write the code: Replace the contents of
index.ts
with the code provided below. -
Install dependencies: Make sure to install the required Pulumi package if not already present.
npm install @pulumi/kubernetes
-
Deploy: Run
pulumi up
to perform the deployment.
Here is the detailed Pulumi TypeScript program:
import * as k8s from "@pulumi/kubernetes"; // OpenShift clusters typically have a strict security context, so your Helm chart must be // compatible with those constraints or you may need to adjust OpenShift's security settings. // Replace 'REPLACE_WITH_NAMESPACE' with the namespace where you want to deploy the redis-ui. const namespaceName = 'REPLACE_WITH_NAMESPACE'; // Create a Kubernetes namespace for the Redis UI deployment if necessary. const ns = new k8s.core.v1.Namespace("redis-ui-namespace", { metadata: { name: namespaceName } }); // Deploy the redis-ui Helm chart from the Helm repository. Replace `REPO_URL` with the actual // repository URL and `CHART_VERSION` with the desired chart version. const redisUiChart = new k8s.helm.v3.Chart("redis-ui", { chart: "redis-ui", version: "CHART_VERSION", // Specify the chart version you want to deploy fetchOpts: { repo: "REPO_URL", // Specify the Helm repository URL }, namespace: namespaceName, },{ providers: { kubernetes: k8sProvider }, // Associate with the OpenShift provider if needed }); // Export the Redis UI endpoint as an output. export const redisUiEndpoint = redisUiChart.getResourceProperty("v1/Service", "redis-ui-redis-ui", "status").apply(status => { // Assuming the Service type is LoadBalancer or NodePort, which provides an endpoint. // You might need to adjust the logic based on your actual Service configuration. return status.loadBalancer?.ingress[0].ip || status.loadBalancer?.ingress[0].hostname; });
Understanding the Code:
-
Namespace: The
k8s.core.v1.Namespace
resource is used to create a new namespace in the Kubernetes cluster if you want to isolate theredis-ui
deployment. -
Helm Chart: The
k8s.helm.v3.Chart
resource encapsulates a Helm chart's deployment logic. In theredisUiChart
, we specify the chart name, the version, and the repository URL where the chart is located. -
Fetch Options: The
fetchOpts
object provides the location of the Helm chart repository. ReplaceREPO_URL
with the actual repository URL where theredis-ui
chart is stored. -
Version: Replace
CHART_VERSION
with the version number of theredis-ui
chart that you wish to deploy. -
Exported Endpoint: The
redisUiEndpoint
captures the IP address or hostname that is exposed by the KubernetesService
object for theredis-ui
. This is assuming that theService
type isLoadBalancer
orNodePort
. You will need to adjust the export based on what type ofService
is created by your Helm chart.
By running this program with Pulumi, the
redis-ui
Helm chart will be deployed on your OpenShift cluster. To access the Redis UI, you will use the endpoint that is exported by the program. Remember that the exact way the Redis UI is exposed may vary based on how the Helm chart is set up and the specifics of your OpenShift environment. Make sure to review the Helm chart's documentation for any post-deployment steps or prerequisites.For more information on the Pulumi Kubernetes provider and the
Chart
resource, you can visit the following links:- Pulumi Kubernetes Provider: https://www.pulumi.com/docs/reference/pkg/kubernetes/
- Pulumi Chart Resource: https://www.pulumi.com/registry/packages/kubernetes/api-docs/helm/v3/chart/
-