Deploy the check-mk helm chart on Digital Ocean Kubernetes Service
TypeScriptTo deploy the check-mk Helm chart on DigitalOcean Kubernetes Service using Pulumi, we will perform the following steps:
-
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.
-
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 therepo
to the URL of the Helm chart repository containing the check-mk chart. - The
values
section in theChart
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.-