Deploy the haproxytech-haproxy-ingress helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy the HAProxy Ingress Controller using Helm on an OpenShift cluster with Pulumi, you'll want to use the `kubernetes.helm.v3.Chart` resource from the Pulumi Kubernetes provider. This resource is a high-level abstraction that allows you to deploy Helm charts to a Kubernetes cluster.

Before you begin, make sure you have the following prerequisites set up:

- Pulumi CLI installed and configured.
- Access to an OpenShift cluster and the `oc` CLI tool configured to communicate with the cluster.
- Helm CLI installed (if you need to customize the Helm chart or values).
- The correct OpenShift project selected where you want to deploy the Ingress Controller.

Below is a Pulumi program written in TypeScript that deploys the HAProxy Ingress Controller to an OpenShift cluster. The program assumes that you have set up your Pulumi stack to use the appropriate Kubernetes context for OpenShift.

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

// Deploy the HAProxy Ingress Controller using the Helm Chart.
const haproxyIngress = new k8s.helm.v3.Chart("haproxy-ingress", {
    repo: "haproxytech", // The repository name where the chart is located.
    chart: "haproxy-ingress", // The chart name to deploy.
    version: "1.4.10", // Specify the version of the chart you wish to deploy.
    namespace: "ingress-controllers", // The namespace where the chart should be deployed.
    values: {
        // Specify any custom values you wish to use for the Helm chart.
        // Here is an example to set the controller.kind to "DaemonSet" instead of the default "Deployment":
        controller: {
            kind: "DaemonSet",
            hostNetwork: true,
            service: {
                type: "ClusterIP",
            },
        },
    },
}, {
    provider: new k8s.Provider("openshift", {
        // This provider assumes that you're authenticated against OpenShift and
        // that the relevant context is selected in your kubeconfig file.
        // Replace `kubeconfig` with the appropriate configuration if needed.
        kubeconfig: process.env.KUBECONFIG,
    }),
});

// Export the URL to access the HAProxy Ingress.
export const ingressUrl = pulumi.interpolate`http://${haproxyIngress.getResourceProperty("v1/Service", "haproxy-ingress-controller", "status").loadBalancer.ingress[0].ip}`;

```

Explanation:
1. The `k8s.helm.v3.Chart` resource is used to deploy the Helm chart.
2. The `repo` field specifies the name of the Helm repository where the chart is located.
3. The `chart` field is the name of the chart to be deployed.
4. The `version` field specifies which version of the chart you want to deploy.
5. The `namespace` field defines the namespace where the chart should be installed.
6. The `values` field allows you to override default values in the chart, providing custom configuration as needed.
7. The `provider` configuration is passed to specify the authentication context for OpenShift. Replace `kubeconfig` with the appropriate configuration if needed.
8. Finally, an export statement is included to output the URL where the HAProxy Ingress can be accessed after it's deployed, assuming that it's of type `LoadBalancer`.

Please ensure to replace the placeholder values and configurations with those that match your OpenShift cluster and needs. The HAProxy Ingress Controller will be exposed based on the configuration you provide in the `values` field.

After writing this code to a file (for instance, `index.ts`), you can deploy it using the Pulumi CLI with `pulumi up`. But remember, you would need to have Pulumi and your OpenShift environment already configured.