Deploy the jfrog-common helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy the `jfrog-common` Helm chart on a Kubernetes cluster using Pulumi, we will utilize the `kubernetes.helm.v3.Chart` resource from the Pulumi Kubernetes provider. The `Chart` resource is a high-level abstraction that allows us to deploy Helm charts into a Kubernetes cluster.

First, ensure that you have Pulumi installed and configured for use with your desired cloud provider and have access to a Kubernetes cluster where you want to deploy the Helm chart. Also, ensure you have Helm and kubectl installed and configured to interact with your Kubernetes cluster.

Here is a step-by-step TypeScript program to deploy the `jfrog-common` Helm chart:

1. **Setting up the Project**: Create a new Pulumi project if you don't have one already.

2. **Installing Packages**: Install the necessary Pulumi Kubernetes package using `npm` or `yarn`.

```bash
npm install @pulumi/kubernetes
```
or
```bash
yarn add @pulumi/kubernetes
```

3. **Writing the Deployment Code**: Write the TypeScript program that defines the deployment of the `jfrog-common` Helm chart.

4. **Running the Pulumi Program**: Use the Pulumi CLI to preview and deploy the resources defined in the TypeScript program.

Here's the TypeScript program that accomplishes the deployment:

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

// We assume the necessary configurations like the Kubernetes provider is already set up.
// For helm charts, you may need to specify the repository or local path to the chart.

// Create a new instance of the Helm Chart. You need to provide the chart name,
// and optionally the version and other configurations like values or the namespace.
const jfrogCommonChart = new k8s.helm.v3.Chart("jfrog-common", {
    chart: "jfrog-common",
    // If the chart is from a custom Helm repository, you must specify the `repo` field.
    // A `version` field can also be specified to pin down a specific chart version.
    // Example of using a custom repository:
    // repo: "https://charts.jfrog.io",
    // version: "1.2.3"
   
    // Override default values by providing a custom `values` object.
    // The structure of `values` depends on the chart itself.
    values: {
        // Custom values go here. For example:
        // serviceType: "ClusterIP",
        // resources: {
        //     limits: {
        //         cpu: "100m",
        //         memory: "256Mi"
        //     },
        //     requests: {
        //         cpu: "100m",
        //         memory: "256Mi"
        //     }
        // },
    },
    // Define the namespace where the Helm chart will be deployed.
    // If not set, the default namespace is used.
    namespace: "default",
});

// The service URL can be fetched if the chart exposes any services. This depends on the chart configuration.
// Export the service URL if available. This part is optional and specific to the service created by the Helm chart.
export const serviceUrl = jfrogCommonChart.getResourceProperty("v1/Service", "jfrog-common", "status.loadBalancer.ingress[0].hostname");

// To run the Pulumi program, navigate to the project directory in your CLI and run:
// pulumi up --yes
// This will preview and deploy the resources defined above.
```

In this program:

- We import the `@pulumi/kubernetes` package which contains helpers for deploying resources to Kubernetes.
- We create a new Helm chart instance using `new k8s.helm.v3.Chart`, which represents the `jfrog-common` chart.
- The `chart` property specifies the name of the chart.
- The `values` property allows for custom configuration variables to be passed to the Helm chart. In this example, we provided a placeholder for where those values would be overridden. Ensure that you replace them with actual values based on the `jfrog-common` Helm chart's configuration options.
- Optionally, specify the `namespace` where the Helm chart will be deployed.
- We use an export statement to output any service URLs that may be provisioned as part of the `jfrog-common` chart deployment. This again, is dependent on the actual content of the Helm chart.

To deploy this chart on your Kubernetes cluster, save the above TypeScript code to a file, for instance, `index.ts`, within your Pulumi project, run `npm install` or `yarn install` to install dependencies, and then execute `pulumi up` to preview and deploy the Helm chart on your cluster.