Deploy the keeweb helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy the KeeWeb Helm chart on OpenShift, we will use Pulumi's Kubernetes provider. Helm charts are a great way to package and deploy applications on Kubernetes. OpenShift is a Kubernetes distribution from Red Hat, and you can interact with it just as you would with a standard Kubernetes cluster.

The `kubernetes.helm.v3.Chart` resource will be used to deploy a Helm chart within a Kubernetes cluster. This resource is part of Pulumi’s Kubernetes provider, and it allows us to specify the Helm chart repository and chart name, along with any customization required via the `values` property.

Here is the TypeScript program that accomplishes the deployment of the KeeWeb Helm chart on an OpenShift cluster:

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

// Create an instance of the kubernetes provider for OpenShift.
const openshiftProvider = new k8s.Provider('openshiftProvider', {
    // Assuming Pulumi is configured to talk to the OpenShift cluster,
    // if not, provide the kubeconfig field here.
    kubeconfig: process.env.KUBECONFIG,
});

// Deploy KeeWeb chart using the Helm Chart resource.
const keewebChart = new k8s.helm.v3.Chart('keeweb', {
    // Specify the chart repository and chart name.
    repo: 'https://charts.keeweb.info',
    chart: 'keeweb',
    // Specify the namespace where KeeWeb should be deployed,
    // replace 'default' with your desired namespace.
    namespace: 'default',
    // Pass custom values to the Helm chart.
    values: {
        // You can override default values here, for example:
        // service: {
        //   type: 'ClusterIP'
        // },
        // These would be the same overrides you might include in a custom `values.yaml` file.
    },
}, { provider: openshiftProvider });

// Export any useful information, such as the deployed service URL.
// In this case, you would typically export the URL where KeeWeb is accessible,
// but this will depend on the specifics of your OpenShift cluster setup and
// the values you've used to override any defaults in the Helm chart.
export const keewebServiceUrl = keewebChart.getResourceProperty('v1/Service', 'keeweb-keeweb', 'status');
```

In the code above, we start by importing the necessary `@pulumi/kubernetes` package to interact with the Kubernetes API. We then create an instance of the Kubernetes provider that Pulumi uses to communicate with our OpenShift cluster. It's assumed that you have already set up Pulumi with the credentials to access your OpenShift cluster.

The `k8s.helm.v3.Chart` resource is used to deploy the KeeWeb chart. You provide the Helm repository URL and the chart name, specify the namespace where you want the application to be deployed, and optionally pass in any custom values that you might need to configure the deployment. These values override the defaults specified by the Helm Chart and are equivalent to what you would put in a `values.yaml` file if using Helm directly on the command line.

Finally, we use the `export` keyword to output the URL of the KeeWeb service. This URL will typically allow you to access KeeWeb once it's deployed, but the specific details of how this service is exposed will depend on your OpenShift configuration, such as routing and ingress setup.

Remember to replace `'https://charts.keeweb.info'` with the correct repository URL if it's different, and adjust the namespace and values according to your specific requirements and OpenShift's configuration.

This code should be placed in a Pulumi program file and then you can deploy it using the `pulumi up` command in your terminal. The command will provision the resources as defined in the code and the current state will be saved in your Pulumi stack for future updates or modifications.