Deploy the geoserver helm chart on Opensshift

Question

Pulumi · Accepted Answer

Sure, to deploy a Helm chart on an OpenShift cluster, you would typically use the Pulumi Kubernetes provider, particularly the `helm.sh/v3.Chart` resource which manages the deployment of a Helm chart.

Below is a TypeScript program that demonstrates how you can deploy the GeoServer Helm chart on OpenShift using Pulumi.

In this example, I'll first assume that you've already set up your OpenShift cluster and have access to it using `kubectl`. Furthermore, I'm assuming you have Pulumi installed, along with the required Kubernetes provider package and that your Pulumi program is properly set up with the correct OpenShift context.

First, you would need to install the Pulumi Kubernetes provider if you haven't already:

```bash
pulumi plugin install resource kubernetes v4.4.0
```

Then, in your Pulumi program, you define a new Helm chart resource pointing to the GeoServer chart. Here is how your Pulumi script might look:

```typescript
import * as kubernetes from "@pulumi/kubernetes";

// A reference to the current Kubernetes provider configured in your environment which points to your OpenShift cluster
const provider = new kubernetes.Provider("openshift", {
    kubeconfig: "<Your OpenShift Cluster kubeconfig>", // replace with your Openshift cluster's kubeconfig
});

// Deploy the GeoServer Helm chart into your OpenShift cluster
const geoserverChart = new kubernetes.helm.v3.Chart("geoserver", {
    fetchOpts: {
        repo: "https://kubernetes-charts.geoserver.org", // GeoServer Helm repository URL (replace if the repo URL is different)
    },
    chart: "geoserver",
    // You can specify the namespace, version, and values for the Chart here.
    // For example, to specify a particular version and some custom values you could write something like:
    // version: "0.1.2", // specify the exact chart version
    // values: {
    //     service: {
    //         type: "LoadBalancer",
    //     },
    //     // other custom values here...
    // },
}, { provider }); // Ensure that this Helm chart is installed using the OpenShift provider

// Export the public IP address of the LoadBalancer
export const geoserverPublicIp = geoserverChart.getResourceProperty(
    "v1/Service", "geoserver", "status", "loadBalancer", "ingress", 0, "ip");

```

This script creates a new Helm chart resource in your OpenShift cluster. You'll note the `fetchOpts.repo` where you specify the repository URL of the GeoServer Helm chart. If you have a specific version or configuration parameters you'd like to deploy with the chart, you would include them in the `version` and `values` properties, respectively.

Finally, the exported `geoserverPublicIp` would give you the public IP address of the GeoServer once it is exposed via a service of type LoadBalancer. Note that OpenShift services may be exposed slightly differently due to the routing layer (HAProxy) which is commonly used with OpenShift for ingress, so you might instead export the hostname or manage an OpenShift Route or Ingress object to expose GeoServer.

Please also note that Helm charts are managed packages of pre-configured Kubernetes resources, so make sure to check the GeoServer Helm chart documentation for more specific configuration details that you can specify in the `values` property.

Important: Before running the Pulumi up command, please ensure that your Pulumi stack is properly configured to manage resources in your OpenShift cluster. This includes being logged into the cluster via the OpenShift CLI (`oc`) and having the current context correctly set.