1. Deploy the prometheus-rules helm chart on Oracle Kubernetes Engine (OKE)


    To deploy a Helm chart for Prometheus rules on an Oracle Kubernetes Engine (OKE) cluster using Pulumi, you'll utilize the kubernetes provider to work with Kubernetes resources, the helm.sh/v3.Chart resource which represents a Helm chart installation, and the Oracle Cloud Infrastructure (OCI) provider if you need to interact with OKE or other OCI services.

    Below is a TypeScript Pulumi program that demonstrates how to deploy the "prometheus-rules" Helm chart on an existing OKE cluster. Make sure that your local environment is configured with access to your OKE cluster (e.g., by setting the KUBECONFIG environment variable) and that you have the necessary OCI credentials configured for Pulumi.

    Step-by-step Explanation:

    1. Configure the OCI and Kubernetes providers in Pulumi. The Kubernetes provider uses the context from your local kubeconfig, and the OCI provider uses credentials to interact with OCI services.
    2. Instantiate the helm.sh/v3.Chart resource, which will deploy the "prometheus-rules" chart to your OKE cluster. You will need to provide the name of the chart, the repository where it can be found, and any configuration values required by the chart.

    Detailed Program:

    import * as pulumi from '@pulumi/pulumi'; import * as k8s from '@pulumi/kubernetes'; // Step 1: Instantiate the Kubernetes provider // This utilizes the current context from your kubeconfig file by default. const k8sProvider = new k8s.Provider('k8s-provider', {}); // Step 2: Deploy the "prometheus-rules" Helm chart onto the existing OKE cluster const prometheusRulesChart = new k8s.helm.v3.Chart('prometheus-rules-chart', { // Specify the name of the Helm chart and its repository chart: 'prometheus-rules', version: 'YOUR_CHART_VERSION', // Replace with the specific chart version fetchOpts: { // Specify the repository from which to fetch the chart repo: 'https://prometheus-community.github.io/helm-charts', }, // You may optionally provide additional configuration values for the Helm chart values: { // ... Add specific configuration options here }, }, { provider: k8sProvider }); // Export the URL to the Prometheus UI if it's exposed via a LoadBalancer Service export const prometheusRulesUiEndpoint = prometheusRulesChart .getResource('v1/Service', 'prometheus-rules-prometheus-server') .apply(service => `http://${service.status.loadBalancer.ingress[0].ip}:9090`);

    Replace YOUR_CHART_VERSION with the actual version of the "prometheus-rules" Helm chart that you wish to deploy. You may also add additional configuration values under the values section based on the specific requirements of the Prometheus rules you want to set up.

    This program creates a Helm chart deployment on your OKE cluster. It's important to ensure that the OKE cluster is already up and running, and that you have access to it through your kubeconfig file.

    To execute this Pulumi program:

    1. Save the above code in a file with a .ts extension (e.g., index.ts).
    2. Run pulumi up in the CLI, which will prompt Pulumi to perform the deployment.
    3. Once successfully deployed, Pulumi will output the URL to the Prometheus UI if available.

    Remember to ensure all prerequisites are met, such as having the Pulumi CLI installed, being authenticated with both OCI and your Kubernetes cluster, and having the helm repository added if necessary.

    For further information on the resources used: