1. Deploy the check-mk helm chart on Digital Ocean Kubernetes Service


    To deploy the check-mk Helm chart on DigitalOcean Kubernetes Service using Pulumi, we will perform the following steps:

    1. Set Up a DigitalOcean Kubernetes Cluster: We will create a new Kubernetes cluster in your DigitalOcean account. This cluster will be the environment where your check-mk instance will run.

    2. Deploy the Helm Chart: Once the cluster is up and running, we will use the kubernetes provider to install the check-mk Helm chart onto the cluster.

    For this program, you will need a DigitalOcean account, a DigitalOcean Personal Access Token, and you must have Pulumi and the DigitalOcean CLI tool installed and configured.

    Here's how you could write the Pulumi program in TypeScript:

    import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; // Step 1: Create a DigitalOcean Kubernetes Cluster const cluster = new digitalocean.KubernetesCluster("do-cluster", { region: "nyc1", version: "latest", // You can specify a specific version of Kubernetes nodePool: { name: "default", size: "s-2vcpu-2gb", // This is the smallest size available, adjust based on your needs. nodeCount: 1, }, }); // Step 2: Deploy the check-mk Helm Chart // First, we need to create a provider that uses the kubeconfig from our newly created DigitalOcean Kubernetes cluster. const k8sProvider = new kubernetes.Provider("do-k8s", { kubeconfig: cluster.kubeConfigs[0].rawConfig, }); // Deploy the check-mk Helm chart using the Helm provider with the created Kubernetes cluster as the provider. const checkMkChart = new kubernetes.helm.v3.Chart("check-mk-chart", { chart: "check-mk", // The Helm chart can be sourced from any Helm chart repository, here is an example repo // Assuming that 'check-mk' is available in the repository. fetchOpts: { repo: "https://helm.example.com/charts", }, // Provide any custom values to the Helm chart: values: { // e.g., setup service with type LoadBalancer so it's accessible from the internet: service: { type: "LoadBalancer", }, // Add any other custom values required for your check-mk deployment. }, }, { provider: k8sProvider }); // Export the DigitalOcean Kubernetes cluster's kubeconfig and service endpoint export const kubeconfig = cluster.kubeConfigs[0].rawConfig; export const serviceEndpoint = checkMkChart.getResourceProperty("v1/Service", "check-mk-chart", "status").apply(status => status.loadBalancer.ingress[0].ip);

    Explanation of the code:

    • The digitalocean.KubernetesCluster resource defines the cluster with its region, Kubernetes version, and the node pool configuration, including size and count.
    • The kubernetes.Provider resource establishes the connection to the Kubernetes cluster using its kubeconfig, making it available for further deployments.
    • The kubernetes.helm.v3.Chart resource is used to deploy the check-mk Helm chart to the cluster. You need to specify the name of the Helm chart and optionally adjust the repo to the URL of the Helm chart repository containing the check-mk chart.
    • The values section in the Chart resource is a place to put any configuration that the Helm chart accepts in order to customize the deployment of check-mk.
    • Finally, two outputs are exported: the kubeconfig to connect to the cluster and the service endpoint that can be used to access the check-mk application once deployed.

    Make sure the Helm chart's name and repository are correctly set to match where the check-mk chart is located in a Helm repository. If you need any custom configurations specific to check-mk that are available in the chart, you should add them in the values object.